The main objective was to develop the mathematical models and to analyze the results of field experiments that studied how soil fragmentation changes depending on the speed of the machine-tractor assembly during tillage. There were no significant differences in the analysis of the statistical values of the degree of soil fragmentation measured for each repeated experiment on each variable value of the working speed of the machine tractor assembly and it was done according to the law of normal distribution. We choose the non-linear model, because the mathematical statistical calculations of the experimental data processing proved that a simple linear model was not suitable for our experiment. The regression coefficients were determined after converting the model to a linear function and converting the equation to a linear form. After determining the relationship between the speed of the machine tractor assembly and the degree of soil crumbling, we analyzed based on the graph with certain scale. Хөрс боловсруултын чанарт, угсрааны ажлын хурд нөлөөлөх байдлыг тогтоох хээрийн туршилтын дүн Кубота М9000+КПЭ-3.8А угсраагаар хөрсийг сийрүүлэх үед машин тракторын угсраа (МТУ)-ны хөдөлгөөний хурдаас хамаарч хөрсний бутралтын чанар хэрхэн өөрчлөгдөхийг судлах талбайн туршилт явуулж, хэмжилтийн өгөгдлөөр математик загвар гаргах, шинжилгээ хийх зорилго тавив. Угсрааны aжлын хурдны өөрчлөгдөх утга бүр дээр хийсэн туршилт тутамд хэмжсэн хөрсний бутралтын төвшний статистик тоон утгуудыг шинжлэхэд хэт ялгаатай хэмжигдэхүүн байгаагүй бөгөөд тэдгээр нь хэвийн тархалтын хуульд захирагдаж байв. Математик статистикийн тооцооллоос үзэхэд бидний туршилтад энгийн шугаман загвар тохирохгүй байгаа тул шугаман бус загварыг сонгосон. Загварыг шугаман хэлбэрт шилжүүлсний дараа регрессийн коэффициентүүдийг тодорхойллоо. Туршилтаар хэмжиж авсан тоон өгөгдлийг боловсруулж угсрааны ажлын хурд, бутралтын зэргийн хамаарлыг тогтоох, хөрсний бутралтын зэргийн дундаж утгын итгэмжлэх завсрыг тодорхойлох статистик шинжилгээ хийв. Түлхүүр үг: хүчин зүйл, үзүүлэлт, хазайлт, хамаарал, тэгшитгэл, загвар, өөрчлөгдөх хүрээ
{"title":"Results of field experiments to determine the effects of the working speed of the machine tractor assembly on the quality of soil cultivation","authors":"Davaadorj Dolgor, Baatarkhuu Dorjsuren","doi":"10.5564/mjas.v34i3.1920","DOIUrl":"https://doi.org/10.5564/mjas.v34i3.1920","url":null,"abstract":" \u0000The main objective was to develop the mathematical models and to analyze the results of field experiments that studied how soil fragmentation changes depending on the speed of the machine-tractor assembly during tillage. There were no significant differences in the analysis of the statistical values of the degree of soil fragmentation measured for each repeated experiment on each variable value of the working speed of the machine tractor assembly and it was done according to the law of normal distribution. We choose the non-linear model, because the mathematical statistical calculations of the experimental data processing proved that a simple linear model was not suitable for our experiment. The regression coefficients were determined after converting the model to a linear function and converting the equation to a linear form. After determining the relationship between the speed of the machine tractor assembly and the degree of soil crumbling, we analyzed based on the graph with certain scale. \u0000Хөрс боловсруултын чанарт, угсрааны ажлын хурд нөлөөлөх байдлыг тогтоох хээрийн туршилтын дүн \u0000Кубота М9000+КПЭ-3.8А угсраагаар хөрсийг сийрүүлэх үед машин тракторын угсраа (МТУ)-ны хөдөлгөөний хурдаас хамаарч хөрсний бутралтын чанар хэрхэн өөрчлөгдөхийг судлах талбайн туршилт явуулж, хэмжилтийн өгөгдлөөр математик загвар гаргах, шинжилгээ хийх зорилго тавив. Угсрааны aжлын хурдны өөрчлөгдөх утга бүр дээр хийсэн туршилт тутамд хэмжсэн хөрсний бутралтын төвшний статистик тоон утгуудыг шинжлэхэд хэт ялгаатай хэмжигдэхүүн байгаагүй бөгөөд тэдгээр нь хэвийн тархалтын хуульд захирагдаж байв. Математик статистикийн тооцооллоос үзэхэд бидний туршилтад энгийн шугаман загвар тохирохгүй байгаа тул шугаман бус загварыг сонгосон. Загварыг шугаман хэлбэрт шилжүүлсний дараа регрессийн коэффициентүүдийг тодорхойллоо. Туршилтаар хэмжиж авсан тоон өгөгдлийг боловсруулж угсрааны ажлын хурд, бутралтын зэргийн хамаарлыг тогтоох, хөрсний бутралтын зэргийн дундаж утгын итгэмжлэх завсрыг тодорхойлох статистик шинжилгээ хийв. \u0000Түлхүүр үг: хүчин зүйл, үзүүлэлт, хазайлт, хамаарал, тэгшитгэл, загвар, өөрчлөгдөх хүрээ","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73125312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Nergui, A. Adilbish, A. Tserendorj, C. Bayasgalan, N. Guugandaa, Erdene-Ochir Tseren-Ochir, T. Sharav
The increased incidences of sheep adenomatosis in Mongolia determined by clinical and pathalogical diagnosis indicates the development of rapid molecular diagnosis. The presence of papillary to acinar neoplastic lesions that replace the normal alveolar structure of the lungs was noted in histology. The epithelial tumor cells derived from the alveolar wall were penetrated the air exchange ducts which is typical for pathological diagnosis of adenomatosis. 130-180 bp product of proviral 5’-LTR region was determined in tumor lung tissues of some sheeps by nested PCR. The PCR products were cloned and sequenced. Two novel short sequences clustered with Chinese, American, Indian and Scotland viral strains but not with African viral strains. This study showed that ovine pulmonary adenomatosis in Mongolia have been imported likely from foreign countries. Хонины уушгины аденоматозын хавдрын онковирусийг эд судлал болон полимеразын гинжин урвалаар оношилсон дүнгээс Сүүлийн үед манай орны зарим нутгийн хонинд уушгины аденоматоз өвчин эмнэлзүйн шинж тэмдэг, эмгэг судлалын шинжилгээгээр оношлогдох нь ихэссэн нь үүсгэгч вирусийг молекул биологийн аргаар түргэн зөв оношлох, генийн дарааллыг тодорхойлон бусад орны омогтой харьцуулах судалгааг өргөжүүлэх шаардлагатайг харуулж байна. Туранхай эцэнхий, эмнэлзүйн шинж тэмдэгтэй нядлагдсан зарим хонины эмгэгт уушгины эдийн дээжээс провирусийн 5’-LTR-U3 -ийн 130-180 орчим хос суурь урт генийг шаталсан Полимеразын гинжин урвалаар олшруулан нуклеотидийн дарааллыг тогтоон Ген банк дахь бусад ижил төстэй генүүдтэй харьцуулахад Хятад, Америк, Энэтхэг болон Шотландын омгуудтай нэг кластерт орсон ба харин үүсгэгч вирусийн хоёр дахь омог болох Африкийн омгоос өөр байв. Эмгэгт өөрчлөлт бүхий хонины уушгины эдэд олон тооны янз бүрийн хэмжээтэй булчирхайлаг хучуур эсээс тогтсон хавдрын голомтууд ажиглагдав. Монгол хонинд илэрсэн уушгины хавдар үүсгэдэг эксоген Жаагсиектэ ретровирус нь халдварын гадаад эх үүсвэртэй болохыг энэ судалгаа харууллаа. Түлхүүр үг: Аденоматоз, хонины уушгины хорт хавдар,, провирус, эмгэг судлал, Жаагсиектэ ретровирус
{"title":"Molecular determination of ovine pulmonary adenomatosis","authors":"D. Nergui, A. Adilbish, A. Tserendorj, C. Bayasgalan, N. Guugandaa, Erdene-Ochir Tseren-Ochir, T. Sharav","doi":"10.5564/mjas.v34i3.1910","DOIUrl":"https://doi.org/10.5564/mjas.v34i3.1910","url":null,"abstract":"The increased incidences of sheep adenomatosis in Mongolia determined by clinical and pathalogical diagnosis indicates the development of rapid molecular diagnosis. The presence of papillary to acinar neoplastic lesions that replace the normal alveolar structure of the lungs was noted in histology. The epithelial tumor cells derived from the alveolar wall were penetrated the air exchange ducts which is typical for pathological diagnosis of adenomatosis. 130-180 bp product of proviral 5’-LTR region was determined in tumor lung tissues of some sheeps by nested PCR. The PCR products were cloned and sequenced. Two novel short sequences clustered with Chinese, American, Indian and Scotland viral strains but not with African viral strains. This study showed that ovine pulmonary adenomatosis in Mongolia have been imported likely from foreign countries.\u0000Хонины уушгины аденоматозын хавдрын онковирусийг эд судлал болон полимеразын гинжин урвалаар оношилсон дүнгээс \u0000Сүүлийн үед манай орны зарим нутгийн хонинд уушгины аденоматоз өвчин эмнэлзүйн шинж тэмдэг, эмгэг судлалын шинжилгээгээр оношлогдох нь ихэссэн нь үүсгэгч вирусийг молекул биологийн аргаар түргэн зөв оношлох, генийн дарааллыг тодорхойлон бусад орны омогтой харьцуулах судалгааг өргөжүүлэх шаардлагатайг харуулж байна. Туранхай эцэнхий, эмнэлзүйн шинж тэмдэгтэй нядлагдсан зарим хонины эмгэгт уушгины эдийн дээжээс провирусийн 5’-LTR-U3 -ийн 130-180 орчим хос суурь урт генийг шаталсан Полимеразын гинжин урвалаар олшруулан нуклеотидийн дарааллыг тогтоон Ген банк дахь бусад ижил төстэй генүүдтэй харьцуулахад Хятад, Америк, Энэтхэг болон Шотландын омгуудтай нэг кластерт орсон ба харин үүсгэгч вирусийн хоёр дахь омог болох Африкийн омгоос өөр байв. Эмгэгт өөрчлөлт бүхий хонины уушгины эдэд олон тооны янз бүрийн хэмжээтэй булчирхайлаг хучуур эсээс тогтсон хавдрын голомтууд ажиглагдав. Монгол хонинд илэрсэн уушгины хавдар үүсгэдэг эксоген Жаагсиектэ ретровирус нь халдварын гадаад эх үүсвэртэй болохыг энэ судалгаа харууллаа.\u0000Түлхүүр үг: Аденоматоз, хонины уушгины хорт хавдар,, провирус, эмгэг судлал, Жаагсиектэ ретровирус","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81519654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
According to the survey 3200 hectors of forest in Khongor, Shariin gol, Orkhon soums of Darkhan-Uul aimag affected by forest pests. Gypsy moth (Ocneria dispar Linn is in Khongor, Shariin gol soum, satin moth (Stilpnotia (Leucoma) salicis Linn) is in Orkhon soum mainly spreading and causing damage. In survey the number of gypsy mouth per tree was 14-24, and average number of eggs per pack was 210-240, in Khongor and Shariin gol soum. As well as in Orkhon soum, average number of satin moth per tree was 10-15, and average number of eggs per pack was 140-150. The density of the gypsy moth was 165 or moderate in Monostoi, Khuitnii gol river outflow, Khavchuu river, Khar Yamaat in Khongor soum, Bulagtai, Domogt in Shariin gol soum, 79-tokhoi, Kharaa river basin, Yeruu river basin in Orkhon soum. After the pest control gypsy mouth counted 140-165, range is 10-15. Result of pest control operation were 95 %. Дархан-Уул аймгийн ойн хортонтой тэмцсэн ажлын судалгааны дүн Судалгаагаар Дархан-Уул аймгийн Хонгор, Шарын гол, Орхон сумын нийт 3200 га талбай ойн хөнөөлт шавжинд идэгдсэн. Хонгор, Шарын гол суманд Өрөөсгөл хүр эрвээхэй (Ocneria dispar Linn), Орхон суманд Бургасны хүр эрвээхэй (Stilpnotia (Leucoma) salicis Linn) зонхилж хөнөөл учруулж байна. Мөн Хонгор, Шарын гол сумуудад дунджаар нэг модонд Өрөөсгөл хүр эрвээхэй 14-24 багц тоологдсон ба нэг багцан дахь өндөгний тоо дунджаар 210-240 ширхэг байна. Орхон суманд дунджаар нэг модонд Бургасны хүр эрвээхэй 10-15 багц тоологдсон ба нэг багцан дахь өндөгний тоо дунджаар 140-150 ширхэг байна. Хонгор сумын Моностой, Хүйтний голын эх, Хавчуугийн гол, Хар Ямаат, Шарын гол сумын Булагтай, Домогт, Орхон сумын Хөшөөт, 79-н тохой, Хараа голын сав, Ерөө голын сав зэрэг газруудад Өрөөсгөл хүр эрвээхэйн нягтшил нь 165 буюу дунд зэрэг байсан бол тэмцэл хийсний дараа 140-165 тоологдож хэлбэлзэл нь 15-20 байна. Тухайн сумдуудад тэмцлийн ажил 95%-тай хийгдсэн. Түлхүүр үг: шавьж, түймэр, хөнөөл, эрвээхэй
{"title":"Result of research forest pest control operation in Darkhan-Uul province","authors":"Tavanjin Sukhbat, Enkhzul Dulamsuren","doi":"10.5564/mjas.v34i3.1919","DOIUrl":"https://doi.org/10.5564/mjas.v34i3.1919","url":null,"abstract":"According to the survey 3200 hectors of forest in Khongor, Shariin gol, Orkhon soums of Darkhan-Uul aimag affected by forest pests. Gypsy moth (Ocneria dispar Linn is in Khongor, Shariin gol soum, satin moth (Stilpnotia (Leucoma) salicis Linn) is in Orkhon soum mainly spreading and causing damage. In survey the number of gypsy mouth per tree was 14-24, and average number of eggs per pack was 210-240, in Khongor and Shariin gol soum. As well as in Orkhon soum, average number of satin moth per tree was 10-15, and average number of eggs per pack was 140-150. \u0000The density of the gypsy moth was 165 or moderate in Monostoi, Khuitnii gol river outflow, Khavchuu river, Khar Yamaat in Khongor soum, Bulagtai, Domogt in Shariin gol soum, 79-tokhoi, Kharaa river basin, Yeruu river basin in Orkhon soum. After the pest control gypsy mouth counted 140-165, range is 10-15. Result of pest control operation were 95 %. \u0000Дархан-Уул аймгийн ойн хортонтой тэмцсэн ажлын судалгааны дүн \u0000Судалгаагаар Дархан-Уул аймгийн Хонгор, Шарын гол, Орхон сумын нийт 3200 га талбай ойн хөнөөлт шавжинд идэгдсэн. Хонгор, Шарын гол суманд Өрөөсгөл хүр эрвээхэй (Ocneria dispar Linn), Орхон суманд Бургасны хүр эрвээхэй (Stilpnotia (Leucoma) salicis Linn) зонхилж хөнөөл учруулж байна. Мөн Хонгор, Шарын гол сумуудад дунджаар нэг модонд Өрөөсгөл хүр эрвээхэй 14-24 багц тоологдсон ба нэг багцан дахь өндөгний тоо дунджаар 210-240 ширхэг байна. Орхон суманд дунджаар нэг модонд Бургасны хүр эрвээхэй 10-15 багц тоологдсон ба нэг багцан дахь өндөгний тоо дунджаар 140-150 ширхэг байна. \u0000Хонгор сумын Моностой, Хүйтний голын эх, Хавчуугийн гол, Хар Ямаат, Шарын гол сумын Булагтай, Домогт, Орхон сумын Хөшөөт, 79-н тохой, Хараа голын сав, Ерөө голын сав зэрэг газруудад Өрөөсгөл хүр эрвээхэйн нягтшил нь 165 буюу дунд зэрэг байсан бол тэмцэл хийсний дараа 140-165 тоологдож хэлбэлзэл нь 15-20 байна. Тухайн сумдуудад тэмцлийн ажил 95%-тай хийгдсэн. \u0000 Түлхүүр үг: шавьж, түймэр, хөнөөл, эрвээхэй","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81389095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Baldan, Bayarjargal Manaljav, Badam Battulga, Odgerel Nergui, Ariunzaya Enkhtuya, B. Davaakhuu, Narantuya Baatar, Myagmarsuren Purevdorj
This study was conducted as a preliminary study to design the breeding activity of Mongolian cashmere goats. To characterize the phenotypic traits of goats in Western Mongolia, the linear body measurements and cashmere yield and its the quality were measured. In this study, 608 cashmere goats were selected from the areas where it highly affected to overgrazing and overstocked in this area. The study used a random sampling method from the populations. The normality of the data was checked using the Shapiro-Wilk normality test and analyzed using the linear model procedure in R software. All male (buck) and female goats had straight head profiles (100%). Black coat color was predominant in Erdeneburen, Bayan-Uul soums and all of the goats in Ulgii soum were red. The goats in Ulgii soum were the biggest in body size compared to Erdeneburen and Bayan-Uul in Ulgii soums. The goats had back horn orientation (100%). Significant effects (p <0.001) of sex, age, locations, and sex*age classes were observed on live body weight, cashmere quantitative and qualitative characteristics, and linear body measurements.
{"title":"Phenotypic characterization of Cashmere goats in Western Mongolia","authors":"S. Baldan, Bayarjargal Manaljav, Badam Battulga, Odgerel Nergui, Ariunzaya Enkhtuya, B. Davaakhuu, Narantuya Baatar, Myagmarsuren Purevdorj","doi":"10.5564/mjas.v33i2.1749","DOIUrl":"https://doi.org/10.5564/mjas.v33i2.1749","url":null,"abstract":"This study was conducted as a preliminary study to design the breeding activity of Mongolian cashmere goats. To characterize the phenotypic traits of goats in Western Mongolia, the linear body measurements and cashmere yield and its the quality were measured. In this study, 608 cashmere goats were selected from the areas where it highly affected to overgrazing and overstocked in this area. The study used a random sampling method from the populations. The normality of the data was checked using the Shapiro-Wilk normality test and analyzed using the linear model procedure in R software. All male (buck) and female goats had straight head profiles (100%). Black coat color was predominant in Erdeneburen, Bayan-Uul soums and all of the goats in Ulgii soum were red. The goats in Ulgii soum were the biggest in body size compared to Erdeneburen and Bayan-Uul in Ulgii soums. The goats had back horn orientation (100%). Significant effects (p <0.001) of sex, age, locations, and sex*age classes were observed on live body weight, cashmere quantitative and qualitative characteristics, and linear body measurements.","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84351323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article demonstrates the thermal sensitivity and conductivity as well as the water permeability and absorptivity of Mongolian yak wool surfaces according to the Kawabata evaluation method. According to the results of the study, the mean value of thermal sensitivity (Qmax) of yak wool surface is 0.051 w/cm2 for down and 0.061 w/cm2 for coarse hair while the mean value of thermal conductivity is 2.08x10-4 (cal/cm ·0C) for down and 2.63x10-4(cal/cm · 0C) for coarse hair. This study, with its high level of confidence (p = 0.05), proves the difference between down and coarse hair. Additionally, the study shows a strong correlation between the thermal conductivity and the fiber diameter of Mongolian yak wool, resulting in a correlation level of r = -0.80 for down and r = 0.86 for coarse hair. When measuring the wettability of Mongolian yak wool, yak wool surface exhibited waterproof properties with a contact angle of 146.50 degrees for down hair and a contact angle of 147.10 degrees for coarse hair. The study also revealed a low correlation level of r = 0.39 for down and r = 0.40 for coarse hair when examining the relationship between the contact angle and the diameter of yak wool.
{"title":"Relationship between fiber diameter and performance of yak wool","authors":"Baigalmaa Danzan, Sereeterdorj Dugerragchaa, Naransolongo Ukhnaa, Khishigjargal Tsedev","doi":"10.5564/mjas.v33i2.1750","DOIUrl":"https://doi.org/10.5564/mjas.v33i2.1750","url":null,"abstract":"This article demonstrates the thermal sensitivity and conductivity as well as the water permeability and absorptivity of Mongolian yak wool surfaces according to the Kawabata evaluation method. According to the results of the study, the mean value of thermal sensitivity (Qmax) of yak wool surface is 0.051 w/cm2 for down and 0.061 w/cm2 for coarse hair while the mean value of thermal conductivity is 2.08x10-4 (cal/cm ·0C) for down and 2.63x10-4(cal/cm · 0C) for coarse hair. \u0000This study, with its high level of confidence (p = 0.05), proves the difference between down and coarse hair. Additionally, the study shows a strong correlation between the thermal conductivity and the fiber diameter of Mongolian yak wool, resulting in a correlation level of r = -0.80 for down and r = 0.86 for coarse hair. \u0000When measuring the wettability of Mongolian yak wool, yak wool surface exhibited waterproof properties with a contact angle of 146.50 degrees for down hair and a contact angle of 147.10 degrees for coarse hair. The study also revealed a low correlation level of r = 0.39 for down and r = 0.40 for coarse hair when examining the relationship between the contact angle and the diameter of yak wool.","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87401524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lead (Pb) is a substance that can cause serious damage to the brain and kidneys, soften bones, adverse effect to the reproductive system, and can be fatal. Long-term exposure to the substance can damage not only children, but also adults' nervous systems. Lead does not belong into the category of toxic substances due to its effects on the human body. It is considered as a harmful substance. In this study, we analyzed lead concentration in liver and kidney of cattle, horse, sheep, and goat from the mining areas located in the Ulaanbadrakh, Zuunbayan, and Airag soums of Dornogovi province. As a result, the level of lead in the liver of sheep and goat Zuunbayan soum of Dornogovi province was slightly higher than in other soums. The content of heavy metals in water and soil samples did not exceed the international standard average.
{"title":"Evaluation of lead (Pb) concentration in animal tissue, soil, and water samples from grazing pasture near mining industry in southern part of Mongolia","authors":"Bayartogtokh Bataa, Tserenchimed Sainnokhoi, Lkhamjav Gendinpil, Bolormaa Pelden","doi":"10.5564/mjas.v33i2.1748","DOIUrl":"https://doi.org/10.5564/mjas.v33i2.1748","url":null,"abstract":"Lead (Pb) is a substance that can cause serious damage to the brain and kidneys, soften bones, adverse effect to the reproductive system, and can be fatal. Long-term exposure to the substance can damage not only children, but also adults' nervous systems. Lead does not belong into the category of toxic substances due to its effects on the human body. It is considered as a harmful substance.\u0000In this study, we analyzed lead concentration in liver and kidney of cattle, horse, sheep, and goat from the mining areas located in the Ulaanbadrakh, Zuunbayan, and Airag soums of Dornogovi province. \u0000As a result, the level of lead in the liver of sheep and goat Zuunbayan soum of Dornogovi province was slightly higher than in other soums. The content of heavy metals in water and soil samples did not exceed the international standard average.","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89651570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Khongorzul Mungunkhuyag, Zolzaya Bayarsukh, Oyundelger Ganzorig, B. Batdorj
Soybean has a lot of benefits for human nutrition, well-being and soil nutrition. Soybean seed contain higher concentration of protein and fat. The objective of this work was to evaluate the nutritional composition and mineral contents in soybean seeds of four different varieties of soybean for their future application as food products. The soybeans were cultivated in Mongolia. The moisture, protein, crude fat, reducing carbohydrate’s concentrations were determined by Kjeldahl, Soxhlet and Bertrand’s method in dried soybean seeds, and the calory of 100 g seed was calculated. The mineral concentration in the ash was determined by ICP-OES method. Among them, the Severnaya-4 variety contained the highest amount of protein, 31.5%, the Sibiryachka variety had the highest concentration of crude fat, 20.35%, and reducing sugar, 1.24%. Moreover, the Severnaya-4 and Sibiryachka soybean seeds had the highest mineral concentration. The lower concentration of protein of these four soybean varieties was probably due to the lower temperature during the seed-filling period in Mongolia. Sibiryachka and OAC vision had the highest amount of energy in 100 g raw seed than other two varieties. The Severnaya-4 and Sibiryachka soybean seeds could be better sources for protein, fat and minerals than the Nei dou-4 and OAC vision varieties.
大豆对人体营养、健康和土壤营养有很多好处。大豆种子含有较高浓度的蛋白质和脂肪。对4个不同品种大豆种子的营养成分和矿物质含量进行了研究，为今后作为食品的应用提供依据。这些大豆是在蒙古种植的。采用凯氏定氮法、索氏法和伯特兰法测定大豆干种子中的水分、蛋白质、粗脂肪和还原性碳水化合物的浓度，并计算100 g种子的热量。采用ICP-OES法测定灰分中矿物的含量。其中，Severnaya-4品种蛋白质含量最高，为31.5%，Sibiryachka品种粗脂肪含量最高，为20.35%，还原糖含量最高，为1.24%。此外，Severnaya-4和Sibiryachka大豆种子的矿物质含量最高。4个大豆品种蛋白质含量较低可能与蒙古地区灌浆期温度较低有关。Sibiryachka和OAC vision在100 g原料种子中所含能量最高。与Nei doua -4和OAC vision品种相比，Severnaya-4和Sibiryachka大豆种子是更好的蛋白质、脂肪和矿物质来源。
{"title":"Chemical composition and nutritional value of some varieties of soybean cultivated in Mongolia","authors":"Khongorzul Mungunkhuyag, Zolzaya Bayarsukh, Oyundelger Ganzorig, B. Batdorj","doi":"10.5564/mjas.v33i2.1752","DOIUrl":"https://doi.org/10.5564/mjas.v33i2.1752","url":null,"abstract":"Soybean has a lot of benefits for human nutrition, well-being and soil nutrition. Soybean seed contain higher concentration of protein and fat. The objective of this work was to evaluate the nutritional composition and mineral contents in soybean seeds of four different varieties of soybean for their future application as food products. The soybeans were cultivated in Mongolia. The moisture, protein, crude fat, reducing carbohydrate’s concentrations were determined by Kjeldahl, Soxhlet and Bertrand’s method in dried soybean seeds, and the calory of 100 g seed was calculated. The mineral concentration in the ash was determined by ICP-OES method. Among them, the Severnaya-4 variety contained the highest amount of protein, 31.5%, the Sibiryachka variety had the highest concentration of crude fat, 20.35%, and reducing sugar, 1.24%. Moreover, the Severnaya-4 and Sibiryachka soybean seeds had the highest mineral concentration. The lower concentration of protein of these four soybean varieties was probably due to the lower temperature during the seed-filling period in Mongolia. Sibiryachka and OAC vision had the highest amount of energy in 100 g raw seed than other two varieties. The Severnaya-4 and Sibiryachka soybean seeds could be better sources for protein, fat and minerals than the Nei dou-4 and OAC vision varieties.","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76276327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There are studies showing that 10% of the total energy generated in the world is spent on crushing and sifting and sorting processes in agricultural and mining sectors. 52.7% of the total mining industries extracts metal ores, 36.3% of them extracts coal and agricultural sector plants wheat and crops on the 350 thousand hectares of land per year an average. It can be seen that there is a need for sorting the materials with particles in these sectors. According to the needs, the energy expenditure is high and the devices and equipment used still maintaining their traditional designs and makes. The process of sorting out the materials with particles is sifted by the flat surfaced, trommel shaped, and cylindrical mesh surfaces positioned in vertical axis. The above methods are still in use, which becomes the basis of mechanical sifting methods. Therefore, the researchers continue to work on perfecting the above methods. The goal of this research work is to survey and determine the possibility of the changes in the designs of sifting equipment with the trommels can improve the influences that are created during the sifting process, the efficiency of sifting and the productivity of device or equipment. By this research work, with the purpose to improve the parameters of sifting of materials with particles, we will change the design of cylindrical trommel of the cross trommel sieve, which is often used in the sifting process to axle to its axis, and in order to confirm the results of experiment by determining the CAD analysis of axle trommel and the movement of one particle inside of it using the ADAMS software, the experiment on the real equipment shall be rationalized by putting into the mathematic modeling, develop the physical modeling using the “EDEM solution” software and process the results.
{"title":"Research and development of designs of the equipment for classifying the materials with particles","authors":"Ganbaatar Gunsen, Renchinvanjil Yadam","doi":"10.5564/mjas.v33i2.1754","DOIUrl":"https://doi.org/10.5564/mjas.v33i2.1754","url":null,"abstract":"There are studies showing that 10% of the total energy generated in the world is spent on crushing and sifting and sorting processes in agricultural and mining sectors. 52.7% of the total mining industries extracts metal ores, 36.3% of them extracts coal and agricultural sector plants wheat and crops on the 350 thousand hectares of land per year an average. It can be seen that there is a need for sorting the materials with particles in these sectors. According to the needs, the energy expenditure is high and the devices and equipment used still maintaining their traditional designs and makes. The process of sorting out the materials with particles is sifted by the flat surfaced, trommel shaped, and cylindrical mesh surfaces positioned in vertical axis. The above methods are still in use, which becomes the basis of mechanical sifting methods. Therefore, the researchers continue to work on perfecting the above methods. The goal of this research work is to survey and determine the possibility of the changes in the designs of sifting equipment with the trommels can improve the influences that are created during the sifting process, the efficiency of sifting and the productivity of device or equipment. By this research work, with the purpose to improve the parameters of sifting of materials with particles, we will change the design of cylindrical trommel of the cross trommel sieve, which is often used in the sifting process to axle to its axis, and in order to confirm the results of experiment by determining the CAD analysis of axle trommel and the movement of one particle inside of it using the ADAMS software, the experiment on the real equipment shall be rationalized by putting into the mathematic modeling, develop the physical modeling using the “EDEM solution” software and process the results. ","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86749878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Buckwheat is one of the most important traditional pseudocereals and a multipurpose crop, belonging to genus Fagopirum of the family Polygonaceae. Buckwheat grain grown mainly for human consumption and as animal feed, although it can also be used as a vegetable, a green manure crop, as a smother crop to crowd out weeds and as a source of buckwheat honey. Common buckwheat (Fagopyrum esculentum Moench) has been a crop of secondary importance in many countries and it has persisted through centuries of civilization and enters into the agriculture of nearly every country where cereals are cultivated. The objective of the research was to establish optimal agrotechnology including, possible varieties, vegetation period, planting space and seed quality in cultivating Fagopyrum esculentum Moench in Central cropping region of Mongolia. The results showed the chosen varieties matured around 88 to 108 days of planting and the harvest weighed 5.8-11.3 centner per hectare. Among them, the russian variety, Zyemlyachka, planted on 15th May, provided the greatest yield at 1.8-3.2 centner per hectare. Furthermore, planting the said cultivar at a distance of 30 cm between rows, resulted in higher yield (1.30-3.91 centner per hectare) than other alternatives. All of the chosen varieties in the study yielded high quality seeds, good grain evenness and less hulled seeds.
{"title":"Results study foreign varieties and agrotechniqs of buchwheat (Fagopyrum esculentum Moench)","authors":"M. Ganbaatar, Munkhjargal Ochirbat","doi":"10.5564/mjas.v33i2.1751","DOIUrl":"https://doi.org/10.5564/mjas.v33i2.1751","url":null,"abstract":"Buckwheat is one of the most important traditional pseudocereals and a multipurpose crop, belonging to genus Fagopirum of the family Polygonaceae. Buckwheat grain grown mainly for human consumption and as animal feed, although it can also be used as a vegetable, a green manure crop, as a smother crop to crowd out weeds and as a source of buckwheat honey. Common buckwheat (Fagopyrum esculentum Moench) has been a crop of secondary importance in many countries and it has persisted through centuries of civilization and enters into the agriculture of nearly every country where cereals are cultivated. The objective of the research was to establish optimal agrotechnology including, possible varieties, vegetation period, planting space and seed quality in cultivating Fagopyrum esculentum Moench in Central cropping region of Mongolia. The results showed the chosen varieties matured around 88 to 108 days of planting and the harvest weighed 5.8-11.3 centner per hectare. Among them, the russian variety, Zyemlyachka, planted on 15th May, provided the greatest yield at 1.8-3.2 centner per hectare. Furthermore, planting the said cultivar at a distance of 30 cm between rows, resulted in higher yield (1.30-3.91 centner per hectare) than other alternatives. All of the chosen varieties in the study yielded high quality seeds, good grain evenness and less hulled seeds.","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84536472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The one of the best crops grown in Mongolia is Mongolian rice, which is drought-tolerant, has a good reproductive ability, easy processing and easy to prepare for food. The study was conducted in the field of the Institute of Plant and Agriculture Science in Khongor soum of Darkhan-Uul aimag in 2017-2019. The variety named Saratovskaya 853 was sown in the 10 June, 20 June and 10 June. Millet variety Saratovskaya 853 was planted in the 9 research stages /a stage covers 3m2/ and, they were spacing between 0.5 m from each other. The millet seed were planted in the 6 centimeter deep from ground and planted in the lines between 15 centimeters. During this study, we planted 3 million seed per hectare in 3 times repetition. When millet was grown for green fodder, the field germination rate was 76.4-77.2 percent. The crop version of the 10.June was 308.8 c/ha green mass, which is higher 42.6-82.6 c/ha, but the grass yield was 83.6 c / ha, which is higher respectively 31.0-29.2 c / ha than other crop version. Тариалангийн төв бүсэд бог будаа (Panicum miliaceum.L)-ны ногоон массын ургацад тарих хугацааны нөлөө Бог будаа нь хүнс, тэжээлийн нэг наст үет ургамал. Манай орны тариачин ардууд ганд тэсвэртэй,үржих чадвар өндөр, боловсруулах багаж төхөөрөмжийн шаардлага бага, хүнс тэжээлд хэрэглэхэд амар хялбар зэрэг өвөрмөц онцлогтой түгээмэл тариалагдаж байсан унаган таримлын нэг бол бог будаа юм[4]. Туршлага судалгааг 2017-2020 онд Дархан-Уул аймгийн Хонгор сумын нутаг дахь УГТХүрээлэнгийн судалгааны талбарт явууллаа. Бог будааны Саратовская-853 сортыг мөр хооронд 15 см зайтайгаар 6 см гүнд 6 дугаар сарын 10,20, 30 гэсэн хугацаанд нэг га талбайд 3 сая.ширхэг нормоор тус бүр 3 давталтайгаар нэг дэвсгийн хэмжээ 3м2 нийт 9 дэвсэгт тариалсан. Бог будааг ногоон тэжээлд зориулан тариалахад судалгаа явуулсан жилүүдийн хээрийн цухуйц 76.4-77.2 хувийн цухуйцтай байлаа. Ногоон массын ургацаар 6 дугаар сарын 10-ны хугацааны хувилбар 308.8 ц/га ногоон массын ургацыг бүрдүүлж бусад хугацааны хувилбараас 42.6-82.6 ц/га, өвсний 83.6 ц/га ургацыг бүрдүүлж бусад хугацааны хувилбараас 31.0-29.2 ц/га ургацаар тус тус илүү байлаа. Түлхүүр үг: Талбай, хувилбар, давталт, өвс, чанар
{"title":"Study on sowing time effect on millet (Panicum miliaceum.L) green mass in the central","authors":"Khishigbuyan Turbat, Gungaanyam Galkhuu","doi":"10.5564/mjas.v32i1.1605","DOIUrl":"https://doi.org/10.5564/mjas.v32i1.1605","url":null,"abstract":"The one of the best crops grown in Mongolia is Mongolian rice, which is drought-tolerant, has a good reproductive ability, easy processing and easy to prepare for food. The study was conducted in the field of the Institute of Plant and Agriculture Science in Khongor soum of Darkhan-Uul aimag in 2017-2019. The variety named Saratovskaya 853 was sown in the 10 June, 20 June and 10 June. Millet variety Saratovskaya 853 was planted in the 9 research stages /a stage covers 3m2/ and, they were spacing between 0.5 m from each other. The millet seed were planted in the 6 centimeter deep from ground and planted in the lines between 15 centimeters. During this study, we planted 3 million seed per hectare in 3 times repetition. When millet was grown for green fodder, the field germination rate was 76.4-77.2 percent. The crop version of the 10.June was 308.8 c/ha green mass, which is higher 42.6-82.6 c/ha, but the grass yield was 83.6 c / ha, which is higher respectively 31.0-29.2 c / ha than other crop version. \u0000Тариалангийн төв бүсэд бог будаа (Panicum miliaceum.L)-ны ногоон массын ургацад тарих хугацааны нөлөө \u0000Бог будаа нь хүнс, тэжээлийн нэг наст үет ургамал. Манай орны тариачин ардууд ганд тэсвэртэй,үржих чадвар өндөр, боловсруулах багаж төхөөрөмжийн шаардлага бага, хүнс тэжээлд хэрэглэхэд амар хялбар зэрэг өвөрмөц онцлогтой түгээмэл тариалагдаж байсан унаган таримлын нэг бол бог будаа юм[4]. Туршлага судалгааг 2017-2020 онд Дархан-Уул аймгийн Хонгор сумын нутаг дахь УГТХүрээлэнгийн судалгааны талбарт явууллаа. Бог будааны Саратовская-853 сортыг мөр хооронд 15 см зайтайгаар 6 см гүнд 6 дугаар сарын 10,20, 30 гэсэн хугацаанд нэг га талбайд 3 сая.ширхэг нормоор тус бүр 3 давталтайгаар нэг дэвсгийн хэмжээ 3м2 нийт 9 дэвсэгт тариалсан. Бог будааг ногоон тэжээлд зориулан тариалахад судалгаа явуулсан жилүүдийн хээрийн цухуйц 76.4-77.2 хувийн цухуйцтай байлаа. Ногоон массын ургацаар 6 дугаар сарын 10-ны хугацааны хувилбар 308.8 ц/га ногоон массын ургацыг бүрдүүлж бусад хугацааны хувилбараас 42.6-82.6 ц/га, өвсний 83.6 ц/га ургацыг бүрдүүлж бусад хугацааны хувилбараас 31.0-29.2 ц/га ургацаар тус тус илүү байлаа. \u0000 Түлхүүр үг: Талбай, хувилбар, давталт, өвс, чанар","PeriodicalId":18941,"journal":{"name":"Mongolian Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83972599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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