Binyameen M, Khan M I R, Haque M N U, Tausif M A, Kok A, van Knegsel A T M, Tahir M Z
Buffalo Research Institute, Pattoki, District Kasur, 55300, Pakistan.
Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan.
Trop Anim Health Prod. 2023 Feb 18;55(2):88. doi: 10.1007/s11250-023-03510-w.
Feeding of dietary energy sources has been extensively studied in dairy cows but not well described in dairy buffaloes. The objective of this study was to evaluate the effect of prepartum dietary energy sources on productive and reproductive performance in Nili Ravi buffaloes (n = 21). The buffaloes were offered isocaloric (1.55 Mcal/kg DM NE (net energy for lactation)) glucogenic (GD), lipogenic (LD), and mixed diet (MD) during 63 days prepartum and maintained (1.27 Mcal/kg DM NE) at lactation diet (LCD) during 14 weeks postpartum. Effects of dietary energy sources and week on animals were analyzed with the mixed model. The DMI, BCS, and body weights remained similar during the pre- and postpartum periods. The prepartum diets did not affect birth weight, blood metabolites, milk yield, and composition. The GD tended to early uterine involution, more follicle numbers, and early follicle formation. The prepartum feeding of dietary energy source had a similar effect on first estrus expression, days open, conception rate, pregnancy rate, and calving interval. So, it could be concluded that prepartum feeding of an isocaloric dietary energy source had a similar effect on the performance of buffaloes.
日粮能量来源的饲喂在奶牛中已得到广泛研究，但在奶水牛中描述较少。本研究的目的是评估产前日粮能量来源对尼里-拉菲水牛（n = 21）生产性能和繁殖性能的影响。在产前63天给水牛提供等热量（1.55兆卡/千克干物质泌乳净能）的生糖日粮（GD）、生脂日粮（LD）和混合日粮（MD），产后14周维持泌乳期日粮（LCD，1.27兆卡/千克干物质泌乳净能）。用混合模型分析日粮能量来源和周数对动物的影响。干物质采食量、体况评分和体重在产前和产后期间保持相似。产前日粮不影响出生体重、血液代谢产物、产奶量和组成。生糖日粮倾向于使子宫更早复旧、卵泡数量更多和卵泡形成更早。产前日粮能量来源的饲喂对首次发情表现、空怀天数、受孕率、妊娠率和产犊间隔有相似影响。因此，可以得出结论，产前饲喂等热量日粮能量来源对水牛的性能有相似影响。
