Southern Agricultural Research Institute, Areka Agricultural Research Center, Areka, Ethiopia.
Debre Birhan Agricultural Research Center, Deber Berhan, Ethiopia.
PLoS One. 2023 May 11;18(5):e0284280. doi: 10.1371/journal.pone.0284280. eCollection 2023.
The objective of this study was to evaluate growth and reproductive performance of highland Dawuro sheep population managed under a community-based breeding program in Ethiopia. Records used in the study were collected over 6 years (2017-2022). In the current study, 3554 records were considered. Studied traits were birth weight (BWT), 3-month weight (WWT), 6-month weight (SMWT), daily gain from birth to weaning (ADG0-3), daily gains from weaning to 6-month age(ADG3-6), litter size(LS), lambing interval (LI), and annual reproductive rates(ARR). The data were analyzed using general linear models of SAS software. The overall least squares mean (LSM± SE) for BWT, WWT, SMWT, ADG0-3, and ADG3-6 were 2.69±0.02; 14.6±0.49, 22.8±0.22 kg, 128.05±2.27 gram (g), and 71.5±0.23 gram respectively. Site difference exerted significantly on BWT, WWT, and SMWT. The result of WWT and SMWT results of Dawuro sheep were comparable with previously reported known Ethiopian sheep breeds. The overall least squares mean ± standard error of LS, LI and, ARR were 1.67±0.04 lambs, 239±31.91 days, and 2.19±0.06 lambs, respectively. WWT and SMWT traits showed good responses to selection. The general implication of the result to future improvement program was continue selection, strengthening the existing breeder cooperatives, integration of full animal health, feed packages, conservation of prolific flocks, improving the management of animals, expanding the current CBBP to adjacent potential kebele, create market linkage and scaling out the existing best practice to a new sites.
本研究旨在评估埃塞俄比亚社区主导的繁殖计划下高地达乌罗羊种群的生长和繁殖性能。本研究使用的记录是在 6 年期间(2017-2022 年)收集的。在本研究中,考虑了 3554 条记录。研究的性状有初生重(BWT)、3 月龄体重(WWT)、6 月龄体重(SMWT)、出生至断奶日增重(ADG0-3)、断奶至 6 月龄日增重(ADG3-6)、产羔数(LS)、产羔间隔(LI)和年繁殖率(ARR)。数据使用 SAS 软件的一般线性模型进行分析。BWT、WWT、SMWT、ADG0-3 和 ADG3-6 的总体最小二乘均值(LSM±SE)分别为 2.69±0.02、14.6±0.49、22.8±0.22kg、128.05±2.27 克(g)和 71.5±0.23 克。地点差异对 BWT、WWT 和 SMWT 有显著影响。达乌罗羊的 WWT 和 SMWT 结果与先前报道的已知埃塞俄比亚绵羊品种相当。LS、LI 和 ARR 的总体最小二乘均值±标准误差分别为 1.67±0.04 只羔羊、239±31.91 天和 2.19±0.06 只羔羊。WWT 和 SMWT 性状对选择有很好的反应。该结果对未来改良计划的总体意义是继续选择、加强现有的繁殖者合作社、整合全面的动物健康、饲料包、保护多产的羊群、改善动物管理、将当前的 CBBP 扩展到相邻的潜在乡镇、建立市场联系,并将现有的最佳实践推广到新的地点。