Nguyen Giang Tuyet, Nguyen Hien Duc, Huynh Loan Thi, Phan Phuc Thi, Nguyen Dai Van, T. Shimogiri, Do Khoa Vo
Serum profile is generally considered as comprehensive data which directly reflected animal health and their potential resistance to environmental, nutritional and pathological stress. The present study aimed to provide physiological reference values for selected biochemical parameters in Noi chickens, a famous Vietnamese native breed, at 56 days old. The collected blood samples of 355 Noi birds (164 males and 191 females) were used to evaluate biochemical serum profile. Glucose, total protein, albumin, globulin, albumin/globulin ratio, triglycerides, cholesterol, creatinine, and uric acid in the serum were measured. The variation in these values arising from different sexes was also investigated. The results indicated that there were no differences (P>0.05) in the assessed indices between male and female Noi chickens. In overall for the whole group, these values were obtained as 250.86 mg/dL, 7.34 g/dL, 3.40 g/dL, 3.94 g/dL, 1.75, 148.54 mg/dL, 190.86 mg/dL, 0.44 mg/dL, and 1.44 mg/dL, respectively. The relationship among the biochemical parameters showed relatively low coefficients (r=0.79 in maximum). The females obtained higher correlation coefficients between levels of total protein and glucose (r=0.42) as well as between total protein and globulin (r=0.79), compared to the males. It was concluded that the male and female chickens performed similar values of serum indices. The contribution of this study might expand the knowledge on the biochemical profile and improved breeding strategies of Vietnamese indigenous Noi chickens.
{"title":"Serum biochemical properties of Vietnamese indigenous Noi chicken at 56 days old","authors":"Nguyen Giang Tuyet, Nguyen Hien Duc, Huynh Loan Thi, Phan Phuc Thi, Nguyen Dai Van, T. Shimogiri, Do Khoa Vo","doi":"10.2298/bah2003329g","DOIUrl":"https://doi.org/10.2298/bah2003329g","url":null,"abstract":"Serum profile is generally considered as comprehensive data which directly\u0000 reflected animal health and their potential resistance to environmental,\u0000 nutritional and pathological stress. The present study aimed to provide\u0000 physiological reference values for selected biochemical parameters in Noi\u0000 chickens, a famous Vietnamese native breed, at 56 days old. The collected\u0000 blood samples of 355 Noi birds (164 males and 191 females) were used to\u0000 evaluate biochemical serum profile. Glucose, total protein, albumin,\u0000 globulin, albumin/globulin ratio, triglycerides, cholesterol, creatinine,\u0000 and uric acid in the serum were measured. The variation in these values\u0000 arising from different sexes was also investigated. The results indicated\u0000 that there were no differences (P>0.05) in the assessed indices between male\u0000 and female Noi chickens. In overall for the whole group, these values were\u0000 obtained as 250.86 mg/dL, 7.34 g/dL, 3.40 g/dL, 3.94 g/dL, 1.75, 148.54\u0000 mg/dL, 190.86 mg/dL, 0.44 mg/dL, and 1.44 mg/dL, respectively. The\u0000 relationship among the biochemical parameters showed relatively low\u0000 coefficients (r=0.79 in maximum). The females obtained higher correlation\u0000 coefficients between levels of total protein and glucose (r=0.42) as well as\u0000 between total protein and globulin (r=0.79), compared to the males. It was\u0000 concluded that the male and female chickens performed similar values of\u0000 serum indices. The contribution of this study might expand the knowledge on\u0000 the biochemical profile and improved breeding strategies of Vietnamese\u0000 indigenous Noi chickens.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134250289","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. Abdel-Rahman, Y. Mustafa, Hagar Errasool Abd, Hanim S Heikal, A. Elmaghraby
For the association between of Follicle stimulating hormone receptor (FSHR) gene (partial part of exon 10) polymorphisms and litter size trait in Egyptian Ossimi sheep, polymerase chain reaction-single stranded conformational polymorphism (PCR-SSCP) and DNA sequencing techniques were developed. Fifty female Ossimi sheep reared under Egyptian conditions were selected according to their litter size. DNA from blood samples of these animals was isolated to amplify 250-bp of the FSHR gene influencing litter size production trait in sheep. Based on litter size, 50 animals were selected from the highest to the lowest litter size productivity during three seasons. PCR-SSCP analysis of the FSHR gene (250-bp) showed two various genotypes AA and with frequencies 0.64 and 0.36, respectively. The frequencies of the A and B alleles were 0.82 and 0.18, respectively. PCR fragment of FSHR gene (191-bp) was sequenced only in the high and low litter size productivity animals (GenBank accession numbers from MG973191 to MG973207, sequentially). The result indicated that 6SNPs (G/71, G/72, G/77, A/110, A/111, A/191) in high fertile animals, while, 10 SNPs (T/1, C/2, T/14, A/69, A/70, A/71, A/74, G/74, A/75, A/136) have found in low fertile animals. Statistically, AA and genotypes have no significant differences (p> 0.05) on litter size trait in Ossimi sheep. FSHR (exon 10) locus was moderate polymorphic (PIC= 0.25) and it can be used for high litter size productivity in Ossimi sheep as a marker-assisted selection (MAS).
{"title":"FSHR (exon 10) gene polymorphisms and its association with fertility trait in Egyptian Ossimi sheep","authors":"S. Abdel-Rahman, Y. Mustafa, Hagar Errasool Abd, Hanim S Heikal, A. Elmaghraby","doi":"10.2298/BAH1902127A","DOIUrl":"https://doi.org/10.2298/BAH1902127A","url":null,"abstract":"For the association between of Follicle stimulating hormone receptor (FSHR)\u0000 gene (partial part of exon 10) polymorphisms and litter size trait in\u0000 Egyptian Ossimi sheep, polymerase chain reaction-single stranded\u0000 conformational polymorphism (PCR-SSCP) and DNA sequencing techniques were\u0000 developed. Fifty female Ossimi sheep reared under Egyptian conditions were\u0000 selected according to their litter size. DNA from blood samples of these\u0000 animals was isolated to amplify 250-bp of the FSHR gene influencing litter\u0000 size production trait in sheep. Based on litter size, 50 animals were\u0000 selected from the highest to the lowest litter size productivity during\u0000 three seasons. PCR-SSCP analysis of the FSHR gene (250-bp) showed two\u0000 various genotypes AA and with frequencies 0.64 and 0.36, respectively.\u0000 The frequencies of the A and B alleles were 0.82 and 0.18, respectively. PCR\u0000 fragment of FSHR gene (191-bp) was sequenced only in the high and low litter\u0000 size productivity animals (GenBank accession numbers from MG973191 to\u0000 MG973207, sequentially). The result indicated that 6SNPs (G/71, G/72, G/77,\u0000 A/110, A/111, A/191) in high fertile animals, while, 10 SNPs (T/1, C/2,\u0000 T/14, A/69, A/70, A/71, A/74, G/74, A/75, A/136) have found in low fertile\u0000 animals. Statistically, AA and genotypes have no significant differences\u0000 (p> 0.05) on litter size trait in Ossimi sheep. FSHR (exon 10) locus was\u0000 moderate polymorphic (PIC= 0.25) and it can be used for high litter size\u0000 productivity in Ossimi sheep as a marker-assisted selection (MAS).","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129265475","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}
Shahin Khan Shah, H. Ali, S. Hayat, Sohail Ahmad, M. Ibrahim, Syed Haider Adnan, I. Ahmad, Haq Ul Ihtesham
Pregnancy recognition in ruminant affects numerous genes regulation. Interferon-stimulatory gene (ISG15), an ubiquitin-like protein that mediates theconjugation of different proteins through its ISGylation enzymes UBE1L and UBCH8, is also differentially expressed during early pregnancy. The purpose of this study was to investigate the role of ISG-15 in the establishment of pregnancy and conceptus elongation during early post conception periods and to ascertain the presence of ISGylation enzymes UBE1L and UBCH8. Therefore, sheep were synchronized through cloprostenol sodium and gonadotrophin releasing hormone-1 and serviced by rams. The blood was collected on the post-mating days 6, 11, 12, 13, 14, 16, 17, 21, 23 and 25. The ISG-15, UBE1L and UBCH8 primers were used to amplify the corresponding transcriptomic region using PCR. Recovery rate of each transcriptomic fragment was compared with the housekeeping gene GAPDH. ISG-15 expression was higher on day 12, contrary to UBE1L were higher on day 6 and UBCH8 on day 21. Furthermore, the ISG-15 is ubiquitin-like protein, mediates UBE1L and UBCH8 enzymes to guard the conceptus against viral pathogenicity during early pregnancy.
{"title":"Expression of isg15 and conjugating enzyme during peri-implanation period in sheep","authors":"Shahin Khan Shah, H. Ali, S. Hayat, Sohail Ahmad, M. Ibrahim, Syed Haider Adnan, I. Ahmad, Haq Ul Ihtesham","doi":"10.2298/bah2002215k","DOIUrl":"https://doi.org/10.2298/bah2002215k","url":null,"abstract":"Pregnancy recognition in ruminant affects numerous genes regulation.\u0000 Interferon-stimulatory gene (ISG15), an ubiquitin-like protein that mediates\u0000 theconjugation of different proteins through its ISGylation enzymes UBE1L\u0000 and UBCH8, is also differentially expressed during early pregnancy. The\u0000 purpose of this study was to investigate the role of ISG-15 in the\u0000 establishment of pregnancy and conceptus elongation during early post\u0000 conception periods and to ascertain the presence of ISGylation enzymes UBE1L\u0000 and UBCH8. Therefore, sheep were synchronized through cloprostenol sodium\u0000 and gonadotrophin releasing hormone-1 and serviced by rams. The blood was\u0000 collected on the post-mating days 6, 11, 12, 13, 14, 16, 17, 21, 23 and 25.\u0000 The ISG-15, UBE1L and UBCH8 primers were used to amplify the corresponding\u0000 transcriptomic region using PCR. Recovery rate of each transcriptomic\u0000 fragment was compared with the housekeeping gene GAPDH. ISG-15 expression\u0000 was higher on day 12, contrary to UBE1L were higher on day 6 and UBCH8 on\u0000 day 21. Furthermore, the ISG-15 is ubiquitin-like protein, mediates UBE1L\u0000 and UBCH8 enzymes to guard the conceptus against viral pathogenicity during\u0000 early pregnancy.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131081121","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}
M. Petrović, V. Caro-Petrovic, D. Ružić-Muslić, Nevena Maksimović, Vukasin Stefanovic, Bogdan Cekić, I. Ćosić
Quantitative genetic analysis of variability and relationship of lambs body weight traits in indigenous pirot sheep population are done. The examined lambs had high variability which very suitable for selection on a larger weight. There is a high and very significant correlation between the body weight of lambs with 30 and 60 days (.969 **) and the weight with 30 and 90 days (.914 **). There is also a highly significant correlation between the weights of lambs with 60 and 90 days of age (.904 **). From our research, we can see that the first month of the lamb's life is very important for the further development of the body. There is different level of correlation between weight of lambs. This gives us an idea to say that many paragenetic factors are crucial for the growth of lambs from birth to weaning. The coefficient of multiple determination (R2) is 0.845 which means that 8.45% of the lamb's body weight variance at 90 days is determined by the variance of the set of predictor variables (PI-60, 30, 1). Each increase in lamb body weight during the observed periods of age is associated with an increase in the score of depending variable PI90. In particular, any increase in lamb body weight at birth by 1 kg is associated with an increase in lamb body weight from 90 days by 0.238 kg.
{"title":"Quantitative genetic analysis of variability and relationship of lambs body weight traits in population of indigenous Pirot sheep","authors":"M. Petrović, V. Caro-Petrovic, D. Ružić-Muslić, Nevena Maksimović, Vukasin Stefanovic, Bogdan Cekić, I. Ćosić","doi":"10.2298/bah2003271p","DOIUrl":"https://doi.org/10.2298/bah2003271p","url":null,"abstract":"Quantitative genetic analysis of variability and relationship of lambs body\u0000 weight traits in indigenous pirot sheep population are done. The\u0000 examined lambs had high variability which very suitable for selection on a\u0000 larger weight. There is a high and very significant correlation between the\u0000 body weight of lambs with 30 and 60 days (.969 **) and the weight with 30\u0000 and 90 days (.914 **). There is also a highly significant correlation\u0000 between the weights of lambs with 60 and 90 days of age (.904 **). From our\u0000 research, we can see that the first month of the lamb's life is very\u0000 important for the further development of the body. There is different level\u0000 of correlation between weight of lambs. This gives us an idea to say that\u0000 many paragenetic factors are crucial for the growth of lambs from birth to\u0000 weaning. The coefficient of multiple determination (R2) is 0.845 which means\u0000 that 8.45% of the lamb's body weight variance at 90 days is determined by\u0000 the variance of the set of predictor variables (PI-60, 30, 1). Each increase\u0000 in lamb body weight during the observed periods of age is associated with an\u0000 increase in the score of depending variable PI90. In particular, any\u0000 increase in lamb body weight at birth by 1 kg is associated with an increase\u0000 in lamb body weight from 90 days by 0.238 kg.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115238068","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. Kučević, Muhamed Brka, M. Plavšić, K. Čobanović, T. Papović, V. Gantner
The European Green Plan and its implementation strategies defined very demanding and ambitious goals for establishing the first "climate neutral continent" in the world. The implementation of the "Farm to Fork Strategy" (F2F) strategy will have an extremely immense effect on quantitative changes in the area of animal production (reduction in the number of animals and volume of production), increase in prices of beef and products of animal origin, the decrease in citizens' standards and increase in inflation. The appearance of the so-called "leakage effects" can be expected in NON-EU regions with the lowest population density (LU/ha), such as Serbia and the countries of the Western Balkans. At the same time, this effect represents a development opportunity for organizing extensive to semi-intensive production of organic beef based on the Cow-calf system - grass-fed beef production. In addition to the production of organic meat, these systems will contribute to improving biodiversity, maintaining the microbiological and pedological structure of the soil, regulating the carbon cycle, preventing erosion and forest fires, stopping population migration from villages to cities, reducing the use of artificial fertilizers and biocides, etc.
{"title":"Organic beef production as a sustainable solution for the EU market: A case study of the Republic of Serbia","authors":"D. Kučević, Muhamed Brka, M. Plavšić, K. Čobanović, T. Papović, V. Gantner","doi":"10.2298/bah2301001k","DOIUrl":"https://doi.org/10.2298/bah2301001k","url":null,"abstract":"The European Green Plan and its implementation strategies defined very\u0000 demanding and ambitious goals for establishing the first \"climate neutral\u0000 continent\" in the world. The implementation of the \"Farm to Fork Strategy\"\u0000 (F2F) strategy will have an extremely immense effect on quantitative changes\u0000 in the area of animal production (reduction in the number of animals and\u0000 volume of production), increase in prices of beef and products of animal\u0000 origin, the decrease in citizens' standards and increase in inflation. The\u0000 appearance of the so-called \"leakage effects\" can be expected in NON-EU\u0000 regions with the lowest population density (LU/ha), such as Serbia and the\u0000 countries of the Western Balkans. At the same time, this effect represents a\u0000 development opportunity for organizing extensive to semi-intensive\u0000 production of organic beef based on the Cow-calf system - grass-fed beef\u0000 production. In addition to the production of organic meat, these systems\u0000 will contribute to improving biodiversity, maintaining the microbiological\u0000 and pedological structure of the soil, regulating the carbon cycle,\u0000 preventing erosion and forest fires, stopping population migration from\u0000 villages to cities, reducing the use of artificial fertilizers and biocides,\u0000 etc.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114717442","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}
Enriching table eggs with certain nutrients such as omega-3 fatty acids is an ongoing topic. Therefore, the aforementioned research was carried out with the aim of examining the possibility of feeding laying hens with ground flax seed, flax cake and flaxseed oil and their influence on the ratio of omega-6 and omega-3 fatty acids of table eggs, as well as on certain production parameters. The experiment was set up in a production facility with 192 consuming laying hens 27 weeks old. The laying hens were divided into 4 groups: control group; group fed with flax cake (10%) + flax oil (2%); a group fed with 5% ground flax and a group fed with 10% ground flax. Each group had 8 cages with 6 laying hens, a total of 48 laying hens per group. The production parameters presented in this paper are as follows: number of eggs per laying hen , egg weight and yolk weight. Egg quality indicators were determined at the end of the 5th and 10th week from the start of the experiment, namely: pH of egg white and yolk, polyunsaturated and saturated fatty acids ratio, as well as omega-3 and omega-3 fatty acids ratio. The results of the study showed that the inclusion of flax cake, flax oil and ground flaxseed had no negative effects on the shown production parameters and that there was a positive effect of these nutrients on the ratio of omega-6 and omega-3 fatty acids in table eggs.
{"title":"Fatty acids in feed of laying hens on the production parameters and the ratio of omega-6 and omega-3 fatty acids","authors":"J. Perić, M. Drinić, N. Micic","doi":"10.2298/bah1904377p","DOIUrl":"https://doi.org/10.2298/bah1904377p","url":null,"abstract":"Enriching table eggs with certain nutrients such as omega-3 fatty acids is an\u0000 ongoing topic. Therefore, the aforementioned research was carried out with\u0000 the aim of examining the possibility of feeding laying hens with ground flax\u0000 seed, flax cake and flaxseed oil and their influence on the ratio of omega-6\u0000 and omega-3 fatty acids of table eggs, as well as on certain production\u0000 parameters. The experiment was set up in a production facility with 192\u0000 consuming laying hens 27 weeks old. The laying hens were divided into 4\u0000 groups: control group; group fed with flax cake (10%) + flax oil (2%); a\u0000 group fed with 5% ground flax and a group fed with 10% ground flax. Each\u0000 group had 8 cages with 6 laying hens, a total of 48 laying hens per group.\u0000 The production parameters presented in this paper are as follows: number of\u0000 eggs per laying hen , egg weight and yolk weight. Egg quality indicators\u0000 were determined at the end of the 5th and 10th week from the start of the\u0000 experiment, namely: pH of egg white and yolk, polyunsaturated and saturated\u0000 fatty acids ratio, as well as omega-3 and omega-3 fatty acids ratio. The\u0000 results of the study showed that the inclusion of flax cake, flax oil and\u0000 ground flaxseed had no negative effects on the shown production parameters\u0000 and that there was a positive effect of these nutrients on the ratio of\u0000 omega-6 and omega-3 fatty acids in table eggs.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114777455","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}
M. Gogić, N. Katanić, R. Savić, Violeta Mandić, M. Petričević, V. Zivkovic, N. Stojiljković
The study of the production traits of 22 genotypes of fattening pigs was carried out on two pig farms (Farm A and Farm B) in Central Serbia, under the influence of the following factors: farm, genotype and sex of fattening pigs, and pre-slaughter weight. The characteristics of fattening animals included in the research are: warm carcass side growth (WCSG); bacon thickness - rump (FTR); bacon thickness - back (FTB); bacon thickness - rump + back (FTRB); meat yield - carcass sides (JUSKG) and meat yield in percentage (JUSPRO), as well as weight and ratio of French dressing in warm carcass sides (FDKG and FDPRO). Animals of both sexes were used in the trial (female non-castrated rats and surgically castrated males). Total of 1166 fattening animals were included in the trials. Statistical data processing was performed using the Harvey software package. All included factors in the used models show a highly statistically significant effect on the variation of fattening traits (P<0.01; P<0.001). Animals of genotype DxSL (44.97%) had the highest share of meat in carcass sides, and animals of genotype SL (44.63%) for the trait JUSPRO, while for the trait FDPRO the highest value was recorded for the genotype DXSL (54.45%). In our study, animals of the genotypes (HxD)x(WxD) and Dx(WxD) had the highest values for bacon thickness - 39.95 and 38.32 mm, respectively, which implies lower share of meat in the carcasses. By calculating the genetic and phenotypic correlations, we came to the conclusion that the phenotypic correlation of the carcass side traits was of different strength (from very weak to complete) and different sign, while the genetic correlations were stronger than the phenotypic, so the genetic correlations between the bacon thicknesses FTB and FTR were complete, and between meat yield and traits FTB and FTR complete and negative.
{"title":"The effect of genotype, farm and sex on the production traits of fattening pigs of pedigree breed genotypes","authors":"M. Gogić, N. Katanić, R. Savić, Violeta Mandić, M. Petričević, V. Zivkovic, N. Stojiljković","doi":"10.2298/bah2202101g","DOIUrl":"https://doi.org/10.2298/bah2202101g","url":null,"abstract":"The study of the production traits of 22 genotypes of fattening pigs was\u0000 carried out on two pig farms (Farm A and Farm B) in Central Serbia, under\u0000 the influence of the following factors: farm, genotype and sex of fattening\u0000 pigs, and pre-slaughter weight. The characteristics of fattening animals\u0000 included in the research are: warm carcass side growth (WCSG); bacon\u0000 thickness - rump (FTR); bacon thickness - back (FTB); bacon thickness - rump\u0000 + back (FTRB); meat yield - carcass sides (JUSKG) and meat yield in\u0000 percentage (JUSPRO), as well as weight and ratio of French dressing in warm\u0000 carcass sides (FDKG and FDPRO). Animals of both sexes were used in the trial\u0000 (female non-castrated rats and surgically castrated males). Total of 1166\u0000 fattening animals were included in the trials. Statistical data processing\u0000 was performed using the Harvey software package. All included factors in the\u0000 used models show a highly statistically significant effect on the variation\u0000 of fattening traits (P<0.01; P<0.001). Animals of genotype DxSL (44.97%) had\u0000 the highest share of meat in carcass sides, and animals of genotype SL\u0000 (44.63%) for the trait JUSPRO, while for the trait FDPRO the highest value\u0000 was recorded for the genotype DXSL (54.45%). In our study, animals of the\u0000 genotypes (HxD)x(WxD) and Dx(WxD) had the highest values for bacon thickness\u0000 - 39.95 and 38.32 mm, respectively, which implies lower share of meat in the\u0000 carcasses. By calculating the genetic and phenotypic correlations, we came\u0000 to the conclusion that the phenotypic correlation of the carcass side traits\u0000 was of different strength (from very weak to complete) and different sign,\u0000 while the genetic correlations were stronger than the phenotypic, so the\u0000 genetic correlations between the bacon thicknesses FTB and FTR were\u0000 complete, and between meat yield and traits FTB and FTR complete and\u0000 negative.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121578014","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}
R. Savić, D. Radojković, N. Stojiljković, N. Parunović, M. Gogić, Č. Radović
The main objective of the study was to determine the influence of breed on the traits of boar ejaculate: ejaculate volume (VOL, ml), sperm concentration (CON, x106 sperm/ml), total sperm count in ejaculate (TNS, x109 spermatozoa), sperm motility in native ejaculate (MON, %), sperm motility after dilution (MOD, %) and number of doses produced (NPD). The aim was also to evaluate the correlation of the boar performance test traits: average life daily gain (g), backfat thickness measured in two locations (mm), depth of longissimus dorsi muscle (mm) and carcass meat content (%) with ejaculate traits. Total of 931 ejaculates of 36 boars during reproductive exploitation were analysed (16 Landrace boars and 20 Large White boars). The effect was assessed using the procedure of the general linear model of the statistical package SAS 9.1.3 (SAS Inst. Inc., 2002- 2003). The model for analysis included the influence of breed, season and the linear regression influence of body weight at the end of the performance test. The correlation of the traits was determined by applying the Pearson?s correlation coefficient. Most of the examined ejaculate traits (VOL, CON, MOD and NPD) varied under the influence of boar breed (p<0.01; p<0.001). Weight at the end of the test (p<0.05; p<0.01; p<0.001) affected all examined traits, except CON and TNS. A weak association was found between production performance and ejaculate traits.
{"title":"Effect of breed of performance tested boars on ejaculate traits","authors":"R. Savić, D. Radojković, N. Stojiljković, N. Parunović, M. Gogić, Č. Radović","doi":"10.2298/bah2003309s","DOIUrl":"https://doi.org/10.2298/bah2003309s","url":null,"abstract":"The main objective of the study was to determine the influence of breed on\u0000 the traits of boar ejaculate: ejaculate volume (VOL, ml), sperm\u0000 concentration (CON, x106 sperm/ml), total sperm count in ejaculate (TNS,\u0000 x109 spermatozoa), sperm motility in native ejaculate (MON, %), sperm\u0000 motility after dilution (MOD, %) and number of doses produced (NPD). The aim\u0000 was also to evaluate the correlation of the boar performance test traits:\u0000 average life daily gain (g), backfat thickness measured in two locations\u0000 (mm), depth of longissimus dorsi muscle (mm) and carcass meat content (%)\u0000 with ejaculate traits. Total of 931 ejaculates of 36 boars during\u0000 reproductive exploitation were analysed (16 Landrace boars and 20 Large\u0000 White boars). The effect was assessed using the procedure of the general\u0000 linear model of the statistical package SAS 9.1.3 (SAS Inst. Inc., 2002-\u0000 2003). The model for analysis included the influence of breed, season and\u0000 the linear regression influence of body weight at the end of the performance\u0000 test. The correlation of the traits was determined by applying the Pearson?s\u0000 correlation coefficient. Most of the examined ejaculate traits (VOL, CON,\u0000 MOD and NPD) varied under the influence of boar breed (p<0.01; p<0.001).\u0000 Weight at the end of the test (p<0.05; p<0.01; p<0.001) affected all\u0000 examined traits, except CON and TNS. A weak association was found between\u0000 production performance and ejaculate traits.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125684050","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}
M. Petrović, V. Caro-Petrovic, D. Ružić-Muslić, Nevena Maksimović, I. Pavlović, Bogdan Cekić, I. Ćosić
Crossbreeding serves as a predictable and cost-effective method to genetically increase lamb body weight by mating two or more breeds of sheep. The crossing over breed comes to a far greater number of combinations of genes and thus is more likely to express favorable allele carriers of economically important traits. The phenomenon of heterosis has used since the beginning of the last century. However, its genetic basis has remained unclear. From the very beginning of the knowledge of heterosis to the present day, there are several theories, but neither theory able to answer all questions that arise regarding the apparent strength of the F1 generation offspring. Not assert anything about the genetic or molecular phenomenon that causes heterosis. It has been increasingly experimentally confirmed that heterosis is the result of highly complex interactions within the genome as well as between the genome and the environment. In Serbia, some activity of domestic researchers regarding crossbreeding of sheep after the Second World War has been recorded up to date. It found out that crosses have a higher body weight than the maternal base in the F1 generation. In other words, they had better fattening capacity than purebreds. However, the results are not always in line with expectations due to the influence of various known and unknown factors. This review paper aims to draw attention to the phenomenon of heterosis through experience in its application in Serbia, in the hope that this biological phenomenon would clarify in the near future by applying modern scientific understandings and technologies.
{"title":"The phenomenon of heterosis and experience in crossing different breeds of sheep in Serbia","authors":"M. Petrović, V. Caro-Petrovic, D. Ružić-Muslić, Nevena Maksimović, I. Pavlović, Bogdan Cekić, I. Ćosić","doi":"10.2298/bah1904311p","DOIUrl":"https://doi.org/10.2298/bah1904311p","url":null,"abstract":"Crossbreeding serves as a predictable and cost-effective method to\u0000 genetically increase lamb body weight by mating two or more breeds of sheep.\u0000 The crossing over breed comes to a far greater number of combinations of\u0000 genes and thus is more likely to express favorable allele carriers of\u0000 economically important traits. The phenomenon of heterosis has used since\u0000 the beginning of the last century. However, its genetic basis has remained\u0000 unclear. From the very beginning of the knowledge of heterosis to the\u0000 present day, there are several theories, but neither theory able to answer\u0000 all questions that arise regarding the apparent strength of the F1\u0000 generation offspring. Not assert anything about the genetic or molecular\u0000 phenomenon that causes heterosis. It has been increasingly experimentally\u0000 confirmed that heterosis is the result of highly complex interactions within\u0000 the genome as well as between the genome and the environment. In Serbia,\u0000 some activity of domestic researchers regarding crossbreeding of sheep after\u0000 the Second World War has been recorded up to date. It found out that crosses\u0000 have a higher body weight than the maternal base in the F1 generation. In\u0000 other words, they had better fattening capacity than purebreds. However, the\u0000 results are not always in line with expectations due to the influence of\u0000 various known and unknown factors. This review paper aims to draw attention\u0000 to the phenomenon of heterosis through experience in its application in\u0000 Serbia, in the hope that this biological phenomenon would clarify in the\u0000 near future by applying modern scientific understandings and technologies.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127990002","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. Trbovic, M. Stanković, I. Živić, V. Djordjević, J. Ćirić, M. Velebit, Z. Markovic
The aim of this study was to replace fish meal (FM) with soy protein concentrate (SPC) in carp diets. During a carp feeding trial, the replacement of FM with SPC in four diets 100% replacement (SPC100); 50% replacement (SPC50); 25% replacement (SPC25), and; 0% replacement (SPC0) had no negative effects on the feed conversion ratio or the feed efficiency ratio of the live carp. However, significant differences in the specific growth rate and condition factor were found. The data obtained showed the four different carp diets led to differences in the chemical composition of the resultant carp meat. Between dietary treatments, significant differences were seen in the level of saturated fatty acids (FAs) in carp meat (P < 0.05). The levels of monounsaturated FAs and polyunsaturated FAs in carp meat differed significantly between dietary treatments (P ? 0.05). Pearson?s correlation coefficient indicates a statistically significant correlation between the FA composition of the diet and the resultant carp meat. It is possible to replace up to 25% of the FM with SPC. Diets SPC25 and SPC0 had no significant FA composition and had amino acid balances that, more than the other diets studied, closely met the requirements of the carp.
{"title":"Comparison of soy protein concentrate as an alternative to fish meal in common carp (Cyprinus carpio L.) diets","authors":"D. Trbovic, M. Stanković, I. Živić, V. Djordjević, J. Ćirić, M. Velebit, Z. Markovic","doi":"10.2298/bah2202157t","DOIUrl":"https://doi.org/10.2298/bah2202157t","url":null,"abstract":"The aim of this study was to replace fish meal (FM) with soy protein\u0000 concentrate (SPC) in carp diets. During a carp feeding trial, the\u0000 replacement of FM with SPC in four diets 100% replacement (SPC100); 50%\u0000 replacement (SPC50); 25% replacement (SPC25), and; 0% replacement (SPC0) had\u0000 no negative effects on the feed conversion ratio or the feed efficiency\u0000 ratio of the live carp. However, significant differences in the specific\u0000 growth rate and condition factor were found. The data obtained showed the\u0000 four different carp diets led to differences in the chemical composition of\u0000 the resultant carp meat. Between dietary treatments, significant differences\u0000 were seen in the level of saturated fatty acids (FAs) in carp meat (P <\u0000 0.05). The levels of monounsaturated FAs and polyunsaturated FAs in carp\u0000 meat differed significantly between dietary treatments (P ? 0.05). Pearson?s\u0000 correlation coefficient indicates a statistically significant correlation\u0000 between the FA composition of the diet and the resultant carp meat. It is\u0000 possible to replace up to 25% of the FM with SPC. Diets SPC25 and SPC0 had\u0000 no significant FA composition and had amino acid balances that, more than\u0000 the other diets studied, closely met the requirements of the carp.","PeriodicalId":249404,"journal":{"name":"Biotehnologija u stocarstvu","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126247527","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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