Reproductive performance and productivity of local and Dorper x local crossbred ewes under community-based management system, Ethiopia

This study evaluated the reproductive and productivity of local Dorper crossbred ewes in a community-based management system. We analyzed data collected from 2013 to 2021, taking into account different factors such as dam-breed, location, type birth, season, year lambing. Lambing was observed all year-round, but majority (35%) occurred September, October, December. suggests that pasture availability, which is influenced by climatic-factors, may play role seasonality Litter-size at birth weaning did not show any significant difference. Age first lambing varied between breeds (P < 0.001), while lambing-interval annual rates were unaffected dam-breed > 0.05). The number per significantly based on location seasons with higher frequency during major rainy-season compared dry-season (1.58vs1.42), highlighting influence feed availability. Productivity indices calculated. Location season had impact ewe productivity, genotype showed no indices, except for weight lambs produced kilogram metabolic (0.84vs0.72 kg year; P 0.01: 2.02vs1.77 lamb kg0.75 year), where outperformed ewes. difference annual-productivity more evident when considering postpartum weight, exhibited weights. However, both genotypes comparable weights (20.91vs20.16 weaned ewes, respectively). In summary, under low-input conditions, demonstrated performances traits Nevertheless, breed environmental identified this should be taken enhance sheep