Pub Date : 2024-05-17DOI: 10.11648/j.ijast.20240802.12
Khatibu Salum, G. Laswai, Daniel Mushi
A 3x3 factorial experiment was carried out to assess the performance of Boran breed (BRN), Iringa Red (IRR) and Singida White (SWT) strains of cattle fed on three different diets (D1, D2, and D3) under a feedlot condition. The diets contained hominy feed plus molasses (D1 or control), molasses and cassava meal (D2) and rice polishing (D3) as main energy sources. In addition, they contained sunflower seed cake as protein source, minerals and vitamins premix. Fifty-four (54) bulls of equal numbers of each strain, aged between 2 and 2.5 years and average initial weight of 194 ± 12.6 kg were randomly allocated in the three diets and housed in a feedlot structure. They were fed individually with their respective dietary treatments for 80 days, during which data on feed intake and growth performance were recorded. Thereafter 45 bulls with equal number of strains were slaughtered, and carcass characteristics were assessed and gross margins computed. The CP contents (g/kg) in the diets were highest in D2 (155), followed by D1 (141.7) and lowest (130) in D3. There were no significant (P>0.05) interaction effect of diet and breed/strain in all the parameters assessed on performance. Bulls fed on D2 grew faster (0.99 kg/d) and attained greater final weight (269.9 kg) and heavier carcasses (140.8 kg) followed by those fed on D1 with mean values of (0.92 kg/d), (258.1 kg) and (131.5 kg), respectively. The average dressing percentage followed a similar trend, being higher (P<0.05) in bulls fed on D2 (52.4) compared to those on D1 (51.7) and D3 (51.1). The BRN bulls had faster growth rates (1.04 kg/d) followed by the IRR (0.83 g/d), which had similar (P>0.05) average daily gain to that of SWT (0.83 g/d). The final weight of BRN bulls (267.4 kg) was not different (P>0.05) from that of IRR (257.5 kg), which was also found to be similar (P>0.05) to that of SWT (251.2 kg). The hot carcass weights followed similar trend, BRN having carcass weight (138.2 kg) similar (P>0.05) to IRR (130.4 kg), which happened to be not different (P>0.05) from that of SWT (129.3 kg). The mean dressing percentage was higher (P<0.05) for BRN (52.2) than other strains. It is concluded that value of weight gains and slaughter characteristics of Iringa red are comparable to those of Boran, thus for feedlot finishing farmers should be advised to select and use Iringa red bulls to obtain high carcass and large profit.
{"title":"Performance of Boran and Two Strains of Tanzania Short Horn Zebu Cattle Fed on Three Different Diets","authors":"Khatibu Salum, G. Laswai, Daniel Mushi","doi":"10.11648/j.ijast.20240802.12","DOIUrl":"https://doi.org/10.11648/j.ijast.20240802.12","url":null,"abstract":"A 3x3 factorial experiment was carried out to assess the performance of Boran breed (BRN), Iringa Red (IRR) and Singida White (SWT) strains of cattle fed on three different diets (D1, D2, and D3) under a feedlot condition. The diets contained hominy feed plus molasses (D1 or control), molasses and cassava meal (D2) and rice polishing (D3) as main energy sources. In addition, they contained sunflower seed cake as protein source, minerals and vitamins premix. Fifty-four (54) bulls of equal numbers of each strain, aged between 2 and 2.5 years and average initial weight of 194 ± 12.6 kg were randomly allocated in the three diets and housed in a feedlot structure. They were fed individually with their respective dietary treatments for 80 days, during which data on feed intake and growth performance were recorded. Thereafter 45 bulls with equal number of strains were slaughtered, and carcass characteristics were assessed and gross margins computed. The CP contents (g/kg) in the diets were highest in D2 (155), followed by D1 (141.7) and lowest (130) in D3. There were no significant (P>0.05) interaction effect of diet and breed/strain in all the parameters assessed on performance. Bulls fed on D2 grew faster (0.99 kg/d) and attained greater final weight (269.9 kg) and heavier carcasses (140.8 kg) followed by those fed on D1 with mean values of (0.92 kg/d), (258.1 kg) and (131.5 kg), respectively. The average dressing percentage followed a similar trend, being higher (P<0.05) in bulls fed on D2 (52.4) compared to those on D1 (51.7) and D3 (51.1). The BRN bulls had faster growth rates (1.04 kg/d) followed by the IRR (0.83 g/d), which had similar (P>0.05) average daily gain to that of SWT (0.83 g/d). The final weight of BRN bulls (267.4 kg) was not different (P>0.05) from that of IRR (257.5 kg), which was also found to be similar (P>0.05) to that of SWT (251.2 kg). The hot carcass weights followed similar trend, BRN having carcass weight (138.2 kg) similar (P>0.05) to IRR (130.4 kg), which happened to be not different (P>0.05) from that of SWT (129.3 kg). The mean dressing percentage was higher (P<0.05) for BRN (52.2) than other strains. It is concluded that value of weight gains and slaughter characteristics of Iringa red are comparable to those of Boran, thus for feedlot finishing farmers should be advised to select and use Iringa red bulls to obtain high carcass and large profit.\u0000","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141127155","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}
One of biotechnology technique that is frequently used to enhance the number of animals with superior genetic ability and high productivity is embryo transfer. Embryos can be obtained in vivo or in vitro, and they can be frozen and then thawed before being delivered to the recipient animals. Conception rates are influenced by a number of variables, including the quality and developmental stage of the embryo, the location of the embryo's deposit in the uterus, the degree of difficulty of the transfer, whether to use a fresh or frozen embryo, the operator's experience, the corpus luteum's quality, whether to use a heifer or a cow, and the time of year the transfer occurs. The fertility of domestic animals is severely impacted by early embryonic death. For this reason, this study was carried out to gather data on early embryonic development that is normal, the amount and timing of embryonic mortality, potential endogenous and exogenous causes of embryonic loss, and to develop strategies to lower embryonic mortality. A total of 40 embryos (20 fresh and 20 frozen, 26 quality grade 1 and 14 quality grade 2, 29 compact Morula stage and 11 early Blastocyst stage) were transferred to 40 recipient cows (22 Boran and 18 H-B cross) with different body condition score. Return to heat was used as method of pregnancy diagnosis and all recipients were followed around day 14 post embryo transfer and 14 animals were shown heat sign, the rest 26 animals were suspected for pregnancy (65%). Using ultrasound, a pregnancy diagnosis was made on day 45, and 20 recipient animals were found to be 50% positive for PD. On day 60, PD positive animals were re-examined with ultrasound and only 10 were confirmed as PD positive (25%). The PD negative on day 45 and day 60 were suspected to be early embryonic mortality. Other pregnancy loss occurred in this study was abortion nearly after five month of pregnancy. It is not doubtful that, the technique of embryo transfer is utilized to increase the reproductive rates of important female animals. However, it needs proper management for both donor and recipient animals. Therefore, for the successful application of the technology optimum level of feeding both quantity and quality, health management and conducive environment should be fulfilled for all animals.
{"title":"Survival and Development of in Vivo Produced Boran and Boran* Holstein Cross Embryos","authors":"Mosisa Dire, Sayid Ali, Asnaku Funga, Asmarech Yeshaneh, Ayida Mohammad, T. Degefa","doi":"10.11648/j.ijast.20240802.11","DOIUrl":"https://doi.org/10.11648/j.ijast.20240802.11","url":null,"abstract":"One of biotechnology technique that is frequently used to enhance the number of animals with superior genetic ability and high productivity is embryo transfer. Embryos can be obtained in vivo or in vitro, and they can be frozen and then thawed before being delivered to the recipient animals. Conception rates are influenced by a number of variables, including the quality and developmental stage of the embryo, the location of the embryo's deposit in the uterus, the degree of difficulty of the transfer, whether to use a fresh or frozen embryo, the operator's experience, the corpus luteum's quality, whether to use a heifer or a cow, and the time of year the transfer occurs. The fertility of domestic animals is severely impacted by early embryonic death. For this reason, this study was carried out to gather data on early embryonic development that is normal, the amount and timing of embryonic mortality, potential endogenous and exogenous causes of embryonic loss, and to develop strategies to lower embryonic mortality. A total of 40 embryos (20 fresh and 20 frozen, 26 quality grade 1 and 14 quality grade 2, 29 compact Morula stage and 11 early Blastocyst stage) were transferred to 40 recipient cows (22 Boran and 18 H-B cross) with different body condition score. Return to heat was used as method of pregnancy diagnosis and all recipients were followed around day 14 post embryo transfer and 14 animals were shown heat sign, the rest 26 animals were suspected for pregnancy (65%). Using ultrasound, a pregnancy diagnosis was made on day 45, and 20 recipient animals were found to be 50% positive for PD. On day 60, PD positive animals were re-examined with ultrasound and only 10 were confirmed as PD positive (25%). The PD negative on day 45 and day 60 were suspected to be early embryonic mortality. Other pregnancy loss occurred in this study was abortion nearly after five month of pregnancy. It is not doubtful that, the technique of embryo transfer is utilized to increase the reproductive rates of important female animals. However, it needs proper management for both donor and recipient animals. Therefore, for the successful application of the technology optimum level of feeding both quantity and quality, health management and conducive environment should be fulfilled for all animals.","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140693783","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}
Pub Date : 2024-01-18DOI: 10.11648/j.ijast.20240801.11
Abera Teshome Aleli
{"title":"Effect of Ground Nut Cake Supplement on Milk Production Performances and Economic Return of Dairy Cows","authors":"Abera Teshome Aleli","doi":"10.11648/j.ijast.20240801.11","DOIUrl":"https://doi.org/10.11648/j.ijast.20240801.11","url":null,"abstract":"","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139613837","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}
Pub Date : 2023-10-28DOI: 10.11648/j.ijast.20230704.12
Genet Dadi
{"title":"Economic Profitability and Constraints of Commercial Beef Cattle Fattening in East Shewa Oromia Region, Ethiopia","authors":"Genet Dadi","doi":"10.11648/j.ijast.20230704.12","DOIUrl":"https://doi.org/10.11648/j.ijast.20230704.12","url":null,"abstract":"","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139312005","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}
Pub Date : 2023-08-05DOI: 10.11648/j.ijast.20230703.11
Vitaly Dobronosov, Roald Kaupush, Muslim Sarakuev
{"title":"About the Record of Small Emperor Moth Saturnia Pavonia (Linnaeus, 1758) ― A New Species for the Moth’s Fauna of the Republic of North Ossetia-Alania","authors":"Vitaly Dobronosov, Roald Kaupush, Muslim Sarakuev","doi":"10.11648/j.ijast.20230703.11","DOIUrl":"https://doi.org/10.11648/j.ijast.20230703.11","url":null,"abstract":"","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83967639","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}
Pub Date : 2023-06-27DOI: 10.11648/j.ijast.20230702.15
R. Morshed, H. Hosseini, Mohammad Hossein Fallah Mehrabadi, N. Sadri, Z. Ziafati Kafi, Mohammad Zahed Abbasi, Nazanin Sarvian, Dornaz Mehinparvar Irani, Arian Abbassioun, Soroush Sarmadi, Omid Eghbali, A. Ghalyanchilangeroudi
{"title":"Investigation on the Incidence of Marek’s Disease Virus in Backyard Chicken Flocks in Iran: Complete the Puzzle of Epidemiology of Marek Disease","authors":"R. Morshed, H. Hosseini, Mohammad Hossein Fallah Mehrabadi, N. Sadri, Z. Ziafati Kafi, Mohammad Zahed Abbasi, Nazanin Sarvian, Dornaz Mehinparvar Irani, Arian Abbassioun, Soroush Sarmadi, Omid Eghbali, A. Ghalyanchilangeroudi","doi":"10.11648/j.ijast.20230702.15","DOIUrl":"https://doi.org/10.11648/j.ijast.20230702.15","url":null,"abstract":"","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89951385","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}
Pub Date : 2023-06-15DOI: 10.11648/j.ijast.20230702.14
Adnan Jabbar
{"title":"The Eggs Turning Frequencies and Turning Angle During Incubation","authors":"Adnan Jabbar","doi":"10.11648/j.ijast.20230702.14","DOIUrl":"https://doi.org/10.11648/j.ijast.20230702.14","url":null,"abstract":"","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139369760","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}
Pub Date : 2023-06-15DOI: 10.11648/j.ijast.20230702.13
Shu'aib Ahmad Usman, Ibrahim Saifullahi Mustapha, Alhassan Ahmad, Mahmud Mubarak, Musa Junaidu, Nalami Muhammad Zarewa, Ukashat Shamsu Musa
{"title":"Determinants and Resource-Use Efficiency of Catfish Production in Kumbotso Local Government Area of Kano State, Nigeria","authors":"Shu'aib Ahmad Usman, Ibrahim Saifullahi Mustapha, Alhassan Ahmad, Mahmud Mubarak, Musa Junaidu, Nalami Muhammad Zarewa, Ukashat Shamsu Musa","doi":"10.11648/j.ijast.20230702.13","DOIUrl":"https://doi.org/10.11648/j.ijast.20230702.13","url":null,"abstract":"","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139369731","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}
Pub Date : 2023-05-31DOI: 10.11648/j.ijast.20230702.12
A. Hajihosseinlo
: For the design of any successful breeding program, knowledge about semen quality traits is greatly important and per-required. Reproductive performance is of paramount economic importance in the livestock industry, including dairy cattle production. Despite the importance of the quality of semen used in artificial insemination to the reproductive success of dairy herds, few studies have estimated the extent of genetic variability in semen quality traits. In this study, records collected by Jahed (station 1) and Sheykh Hasan (station 2) breeder centers from 1991 to 2013, were used to estimate variance components, heritability, and repeatability for sperm quality traits. Records information was analyzed by wombat software. Data were analyzed by using the repeatability model in three models, first by year-season-station, secondary by station, and third by year. In the first model, maximum heritability and repeatability (0.9755) estimated the total number of sperm in milt ejaculation trait. In the second model, maximum heritability (0.96), that was in Jahed center, estimated for total number sperm in milt ejaculation, maximum repeatability (1), that was in Jahed center, too, estimated for sperm volume and maximum repeatability (1), that was in both breeding centers, estimated for motility to post-thaw motile ratio trait. In the third model, maximum heritability and repeatability (0.54), estimated for (liveafmil) trait. Maximum heritability and repeatability estimates for the total number of post-thaw motile sperm per milt ejaculation trait were 0.19 and 0.32, respectively. The objectives of this study were to estimate genetic parameters of semen quality traits using data from routine semen collection in the Iranian Holstein.
{"title":"Estimation Genetic Parameters of Semen Quality Traits in Iranian Holstein Bulls","authors":"A. Hajihosseinlo","doi":"10.11648/j.ijast.20230702.12","DOIUrl":"https://doi.org/10.11648/j.ijast.20230702.12","url":null,"abstract":": For the design of any successful breeding program, knowledge about semen quality traits is greatly important and per-required. Reproductive performance is of paramount economic importance in the livestock industry, including dairy cattle production. Despite the importance of the quality of semen used in artificial insemination to the reproductive success of dairy herds, few studies have estimated the extent of genetic variability in semen quality traits. In this study, records collected by Jahed (station 1) and Sheykh Hasan (station 2) breeder centers from 1991 to 2013, were used to estimate variance components, heritability, and repeatability for sperm quality traits. Records information was analyzed by wombat software. Data were analyzed by using the repeatability model in three models, first by year-season-station, secondary by station, and third by year. In the first model, maximum heritability and repeatability (0.9755) estimated the total number of sperm in milt ejaculation trait. In the second model, maximum heritability (0.96), that was in Jahed center, estimated for total number sperm in milt ejaculation, maximum repeatability (1), that was in Jahed center, too, estimated for sperm volume and maximum repeatability (1), that was in both breeding centers, estimated for motility to post-thaw motile ratio trait. In the third model, maximum heritability and repeatability (0.54), estimated for (liveafmil) trait. Maximum heritability and repeatability estimates for the total number of post-thaw motile sperm per milt ejaculation trait were 0.19 and 0.32, respectively. The objectives of this study were to estimate genetic parameters of semen quality traits using data from routine semen collection in the Iranian Holstein.","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80512932","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}
Pub Date : 2023-05-17DOI: 10.11648/j.ijast.20230702.11
Edson Henry Kilyenyi, Daniel Elius Mushi, Sebastian Wilson Chenyambuga
: This study evaluated the effects of complete or partial replacement of Cenchrus ciliaris hay with untreated or urea treated rice straws on feed intake, growth performance, feed conversion ratio (FCR) and gross margin of Tanzania Shorthorn Zebu (TSHZ) cattle under feedlot condition. A total of 50 bulls with age of 2.5 - 3.0 years and mean initial weight of 132.4 ± 26.7 kg were assigned randomly to five treatments i.e. 100% Cenchrus ciliaris hay (CCH), 100% untreated rice straws (URS), 100% urea treated rice straws (TRS), 50% untreated rice straw + 50% C. ciliaris hay (URH) and 50% treated rice straw + 50% C. ciliaris (TRH). All animals were supplemented with a diet comprised of 53% maize bran, 25% molasses, 20% sunflower seed cake, 1.5% mineral premix and 0.5% table salt. The results show that average daily gain and weight gain did not differ (p > 0.05) among the treatments. However, animals on TRH showed the highest growth rate (770.0 ± 0.1 g/day) and weight gain (64.7 ± 4.4 kg), followed by those on TRS (growth rate = 725.0 ± 0.1 g/day, weight gain = 60.9 ± 4.4 kg) while those on URS had the lowest growth rate (599.0 ± 0.1 g/day) and weight gain (50.3 ± 4.4 kg). Animals fed TRS (9.8 ± 0.1) and TRH (8.9 ± 0.1) had lower (p ≤ 0.001) FCR than those fed CCH (10.3 ± 0.1), URS (11.9 ± 0.1) and URH (10.4 ± 0.1). The highest gross margin was obtained on animals under TRS (TZS 154,293.00) while the lowest was found on animals under CCH (TZS 120,450.00). Partial or complete replacement of hay with treated or untreated rice straws resulted into higher growth performance than feeding hay alone. Feeding animals with urea treated rice straws resulted into higher growth performance and better feed utilization compared to feeding hay or untreated rice straws. It is concluded that complete replacement of hay with urea treated rice straws resulted into high growth rate, lower FCR and high gross margin, hence, it is recommended as the best basal diet for fattening of TSHZ under traditional feedlot system.
{"title":"Feed Utilization and Growth Performance of Tanzania Shorthorn Zebu Fed Untreated or Urea Treated Rice Straws as Hay Replacement in Traditional Feedlot System","authors":"Edson Henry Kilyenyi, Daniel Elius Mushi, Sebastian Wilson Chenyambuga","doi":"10.11648/j.ijast.20230702.11","DOIUrl":"https://doi.org/10.11648/j.ijast.20230702.11","url":null,"abstract":": This study evaluated the effects of complete or partial replacement of Cenchrus ciliaris hay with untreated or urea treated rice straws on feed intake, growth performance, feed conversion ratio (FCR) and gross margin of Tanzania Shorthorn Zebu (TSHZ) cattle under feedlot condition. A total of 50 bulls with age of 2.5 - 3.0 years and mean initial weight of 132.4 ± 26.7 kg were assigned randomly to five treatments i.e. 100% Cenchrus ciliaris hay (CCH), 100% untreated rice straws (URS), 100% urea treated rice straws (TRS), 50% untreated rice straw + 50% C. ciliaris hay (URH) and 50% treated rice straw + 50% C. ciliaris (TRH). All animals were supplemented with a diet comprised of 53% maize bran, 25% molasses, 20% sunflower seed cake, 1.5% mineral premix and 0.5% table salt. The results show that average daily gain and weight gain did not differ (p > 0.05) among the treatments. However, animals on TRH showed the highest growth rate (770.0 ± 0.1 g/day) and weight gain (64.7 ± 4.4 kg), followed by those on TRS (growth rate = 725.0 ± 0.1 g/day, weight gain = 60.9 ± 4.4 kg) while those on URS had the lowest growth rate (599.0 ± 0.1 g/day) and weight gain (50.3 ± 4.4 kg). Animals fed TRS (9.8 ± 0.1) and TRH (8.9 ± 0.1) had lower (p ≤ 0.001) FCR than those fed CCH (10.3 ± 0.1), URS (11.9 ± 0.1) and URH (10.4 ± 0.1). The highest gross margin was obtained on animals under TRS (TZS 154,293.00) while the lowest was found on animals under CCH (TZS 120,450.00). Partial or complete replacement of hay with treated or untreated rice straws resulted into higher growth performance than feeding hay alone. Feeding animals with urea treated rice straws resulted into higher growth performance and better feed utilization compared to feeding hay or untreated rice straws. It is concluded that complete replacement of hay with urea treated rice straws resulted into high growth rate, lower FCR and high gross margin, hence, it is recommended as the best basal diet for fattening of TSHZ under traditional feedlot system.","PeriodicalId":13766,"journal":{"name":"International Journal of Animal Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73161934","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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