不同能量饲料构成对3～8月龄奶公犊能量与蛋白转化效率的影响

发布时间：2018-04-13 03:12

本文选题：奶公犊 + 能量饲料构成　；参考：《饲料工业》2017年11期

【摘要】：为研究不同能量饲料构成对生长期中国荷斯坦公犊牛能量与蛋白转化效率的影响,选择品种来源一致、发育良好、体重(107.96±14.48)kg的3月龄中国荷斯坦早期断奶公犊27头随机分为3组,以精料补充料中不同能量饲料构成(蒸汽压片玉米、常规玉米+4%植物油、常规玉米)与复合营养调控剂(微生态制剂、复合酶制剂、甘露寡糖)为影响因子,采用2×2复合拉丁方试验设计,研究不同能量饲料构成对3~8月龄奶公犊能量与蛋白转化效率的影响。结果显示,常规玉米+4%植物油型日粮的ADG显著优于蒸汽压片玉米和常规玉米型日粮,分别提高16.61%(P0.01)和9.09%(P0.05),蛋白沉积量与能量转化效率略优于蒸汽压片玉米和常规玉米型日粮,但差异不显著(P0.05)。3种复合营养调控剂对奶公犊ADG、DMI和饲料转化率调控效果相近(P0.05),复合酶制剂和微生态制剂对蛋白质消化利用及能量转化沉积有进一步改善趋势。结果表明,在相同蛋白质水平和粗饲料结构条件下,犊牛精料补充料中以常规玉米+4%植物油为能量饲料来源,可显著提高3~8月龄中国荷斯坦早期断奶公犊ADG,显著改善犊牛的饲养效果;添加0.20%微生态制剂、0.10%复合酶制剂、0.16%甘露寡糖对3~8月龄中国荷斯坦早期断奶公犊的生长性能、能量与蛋白转化效率有着相似的调控效果。
[Abstract]:In order to study the effect of different energy feed composition on the energy and protein conversion efficiency of Chinese Holstein male calves in growing period, 27 Chinese Holstein early weaning bulls with a body weight of 107.96 卤14.48)kg were randomly divided into 3 groups.Different energy feed components (steam flake corn, conventional corn 4% vegetable oil, conventional corn) and compound nutrient regulators (microecological preparation, complex enzyme preparation, mannose oligosaccharide) were used as the influencing factors.A 2 脳 2 complex Latin square design was used to study the effects of different energy feed composition on the energy and protein conversion efficiency of 3-month old male calf.The results showed that the ADG of conventional corn 4% vegetable oil diet was significantly better than that of steam pressed corn and conventional corn diet, and increased 16.61% and 9.09% P 0.05, respectively. The protein deposition and energy conversion efficiency were slightly superior to those of steam pressed corn and conventional corn diet.However, there was no significant difference in the effect of P0.05C.3 compound nutrient regulators on ADGGMI and feed conversion rate of dairy bull. The protein digestibility and energy conversion deposition of protein digestibility and energy transformation deposition were further improved by complex enzyme preparation and microecological preparation.The results showed that under the same protein level and roughage structure, conventional corn 4% vegetable oil was used as the energy source in the concentrate supplement of calves.ADG of Chinese Holstein early weaning bull at the age of 3 ~ 8 months was significantly increased, and the feeding effect of calves was significantly improved, and the growth performance of Chinese Holstein early weaning bull at the age of 3 ~ 8 months was significantly improved by adding 0.20% microecological preparation 0.10% compound enzyme preparation 0.16% mannose oligosaccharide to the early weaning bull of Chinese Holstein at the age of 38 months.Energy and protein conversion efficiency have similar regulatory effects.
【作者单位】：贵州大学动物科学学院;贵州大学酿酒与食品工程学院;
【基金】：贵州省科技计划项目[黔科合NZ字(2012)3010]
【分类号】：S823.5

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