Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in Ethiopia
Increasing litter size and weight during the marketing time by decreasing mortality among lambs per ewe is the objective of the community-based breeding program (CBBP). This study aims to find out litter size, litter weight per ewe, and preweaning lamb mortality of Doyogena sheep managed under CBBP....
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402202864X |
| _version_ | 1798014459545911296 |
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| author | Kebede Habtegiorgis Aynalem Haile Tesfaye Getachew Adisu Jimma Deribe Gemiyo |
| author_facet | Kebede Habtegiorgis Aynalem Haile Tesfaye Getachew Adisu Jimma Deribe Gemiyo |
| author_sort | Kebede Habtegiorgis |
| collection | DOAJ |
| description | Increasing litter size and weight during the marketing time by decreasing mortality among lambs per ewe is the objective of the community-based breeding program (CBBP). This study aims to find out litter size, litter weight per ewe, and preweaning lamb mortality of Doyogena sheep managed under CBBP. The study analyzed the data records of 4530 animals for 8 years from 2013 to 2020. A logistic regression procedure was used to analyze pre-weaning lamb survival rates. Results showed that the overall least-squares means of litter size at birth (LSB), litter size at weaning (LSW), total litter weight at birth (TLWB), and total litter weight at weaning (TLWW) were 1.57 ± 0.02 lambs, 1.50 ± 0.02 lambs, 5.24 ± 0.09 kg, and 24.14 ± 0.69 kg respectively. The incidence of pre-weaning lamb mortality was 4.72%. Year and breeder cooperative vary were observed for pre-weaning lamb losses. Females had lower odds of survival as compared to males. Odds of survival were low for triplets, quadruplets, and low birth weight (≤2 kg) born lambs. The ongoing selection program which aims to improve reproductive and growth performance had a positive influence on the survival rate of lambs. Improvement of the environment in the flock, special care for multiple-born and care for small lambs would lead to further lamb survival improvements. |
| first_indexed | 2024-04-11T15:18:46Z |
| format | Article |
| id | doaj.art-fe260754a5694814af2b6dc3b51d7f9c |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-11T15:18:46Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-fe260754a5694814af2b6dc3b51d7f9c2022-12-22T04:16:26ZengElsevierHeliyon2405-84402022-11-01811e11576Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in EthiopiaKebede Habtegiorgis0Aynalem Haile1Tesfaye Getachew2Adisu Jimma3Deribe Gemiyo4Areka Agricultural Research Center, Southern Agricultural Research Institute, Hawasa, Ethiopia; Corresponding author.International Center for Agricultural Research in Dry Areas, P.O. Box. 5689, Addis Ababa, EthiopiaInternational Center for Agricultural Research in Dry Areas, P.O. Box. 5689, Addis Ababa, EthiopiaAreka Agricultural Research Center, Southern Agricultural Research Institute, Hawasa, EthiopiaAreka Agricultural Research Center, Southern Agricultural Research Institute, Hawasa, EthiopiaIncreasing litter size and weight during the marketing time by decreasing mortality among lambs per ewe is the objective of the community-based breeding program (CBBP). This study aims to find out litter size, litter weight per ewe, and preweaning lamb mortality of Doyogena sheep managed under CBBP. The study analyzed the data records of 4530 animals for 8 years from 2013 to 2020. A logistic regression procedure was used to analyze pre-weaning lamb survival rates. Results showed that the overall least-squares means of litter size at birth (LSB), litter size at weaning (LSW), total litter weight at birth (TLWB), and total litter weight at weaning (TLWW) were 1.57 ± 0.02 lambs, 1.50 ± 0.02 lambs, 5.24 ± 0.09 kg, and 24.14 ± 0.69 kg respectively. The incidence of pre-weaning lamb mortality was 4.72%. Year and breeder cooperative vary were observed for pre-weaning lamb losses. Females had lower odds of survival as compared to males. Odds of survival were low for triplets, quadruplets, and low birth weight (≤2 kg) born lambs. The ongoing selection program which aims to improve reproductive and growth performance had a positive influence on the survival rate of lambs. Improvement of the environment in the flock, special care for multiple-born and care for small lambs would lead to further lamb survival improvements.http://www.sciencedirect.com/science/article/pii/S240584402202864XDoyogena sheepLamb survivalLitter sizeLitter weightLogistic regression |
| spellingShingle | Kebede Habtegiorgis Aynalem Haile Tesfaye Getachew Adisu Jimma Deribe Gemiyo Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in Ethiopia Heliyon Doyogena sheep Lamb survival Litter size Litter weight Logistic regression |
| title | Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in Ethiopia |
| title_full | Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in Ethiopia |
| title_fullStr | Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in Ethiopia |
| title_full_unstemmed | Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in Ethiopia |
| title_short | Litter size, litter weight, and lamb survivability of Doyogena sheep managed under community-based breeding program in Ethiopia |
| title_sort | litter size litter weight and lamb survivability of doyogena sheep managed under community based breeding program in ethiopia |
| topic | Doyogena sheep Lamb survival Litter size Litter weight Logistic regression |
| url | http://www.sciencedirect.com/science/article/pii/S240584402202864X |
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