Binyameen Muhammad, Khan Muhammad Irfan Ur Rehman, Ul Haque Muhmmad Naveed, Azam Burhan E, Kok Akke, Van Knegsel Ariette T M, Tahir Muhammad Zahid
Buffalo Research Institute, Pattoki 55300, Pakistan.
Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan.
Animals (Basel). 2022 Jun 30;12(13):1683. doi: 10.3390/ani12131683.
The objective of this study was to evaluate the effect of prepartum dietary energy level on postpartum production and reproduction in Nili Ravi buffaloes ( = 21). The buffaloes were offered low energy (LE: 1.31 Mcal/kg DM NE (net energy for lactation)), medium energy (ME: 1.42 Mcal/kg DM NE) or high energy (HE: 1.54 Mcal/kg DM NE) diet for 63 days prepartum, and received the same lactation diet (LD: 1.22 Mcal/kg DM NE) during 14 weeks postpartum. The effects of dietary energy level and week were analyzed with Proc GLIMMIX model. Dry matter intake (DMI) was lower in buffaloes fed the LE diet compared with buffaloes fed the ME or HE diet. Calf birth weight (CBW) was higher in buffaloes fed the HE diet compared with buffaloes fed the ME or LE diet. Milk production was similar in buffaloes fed the HE, ME or LE diet within 14 weeks postpartum and throughout the lactation. Milk fat was higher in buffaloes fed the LE diet compared with buffaloes fed the ME or HE diet. Milk protein and lactose yields was high in buffaloes fed the HE diet compared with buffaloes fed the ME or LE diet. Body condition score was high in HE and was affected by diet × week interactions during pre and postpartum period. The concentrations of β-hydroxybutyrate (BHBA) and triglycerides in serum was lowest in buffaloes fed the HE diet compared with the buffaloes fed the ME or LE diet. The buffaloes fed the HE diet had early uterine involution (UI), first estrus, short dry days, and calving interval (CI) compared with buffaloes fed the ME or LE diet. None of buffaloes fed the LE diet exhibited estrus during the first 14 weeks postpartum compared with buffaloes fed the ME or HE diet. In conclusion, prepartum feeding of high energy diet can be helpful in improving the postpartum productive and reproductive performance in Nili Ravi buffaloes.
本研究的目的是评估产前日粮能量水平对尼里-拉菲水牛（n = 21）产后生产性能和繁殖性能的影响。在产前63天，给水牛分别饲喂低能量（LE：1.31兆卡/千克干物质净能（泌乳净能））、中等能量（ME：1.42兆卡/千克干物质净能）或高能量（HE：1.54兆卡/千克干物质净能）日粮，并在产后14周期间给它们饲喂相同的泌乳日粮（LD：1.22兆卡/千克干物质净能）。采用Proc GLIMMIX模型分析日粮能量水平和周数的影响。与饲喂ME或HE日粮的水牛相比，饲喂LE日粮的水牛干物质采食量（DMI）较低。与饲喂ME或LE日粮的水牛相比，饲喂HE日粮的水牛所产犊牛出生体重（CBW）较高。产后14周内及整个泌乳期，饲喂HE、ME或LE日粮的水牛产奶量相似。与饲喂ME或HE日粮的水牛相比，饲喂LE日粮的水牛乳脂率较高。与饲喂ME或LE日粮的水牛相比，饲喂HE日粮的水牛乳蛋白和乳糖产量较高。HE组的体况评分较高，且在产前和产后期间受日粮×周数交互作用的影响。与饲喂ME或LE日粮的水牛相比，饲喂HE日粮的水牛血清中β-羟基丁酸盐（BHBA）和甘油三酯的浓度最低。与饲喂ME或LE日粮的水牛相比，饲喂HE日粮的水牛子宫复旧（UI）早、首次发情早、干奶期短且产犊间隔（CI）短。与饲喂ME或HE日粮的水牛相比，在产后前14周内，饲喂LE日粮的水牛均未发情。总之，产前饲喂高能量日粮有助于提高尼里-拉菲水牛的产后生产性能和繁殖性能。
