饲喂花生饼的阉牛的采食量与消化率、瘤胃发酵及代谢物浓度
Intake and digestibility, rumen fermentation, and concentrations of metabolites in steers fed with peanut cake.
作者信息
de Oliveira Paulo Andrade, Oliveira Ronaldo Lopes, Jaeger Soraya Maria Palma Luz, de Paula Leite Meiby Carneiro, Bagaldo Adriana Regina, Bezerra Leilson Rocha, Correia Braulio Rocha, de Santana Filho Nivaldo Barreto
机构信息
Department of Animal Science, School of Veterinary Medicine and Animal Science/Federal University of Bahia, Salvador City, Bahia State, Brazil, CEP41170-110.
Department of Animal Science, Federal University of Recôncavo da Bahia, Cruz das Almas City, Bahia State, Brazil, 44380000.
出版信息
Trop Anim Health Prod. 2016 Feb;48(2):403-9. doi: 10.1007/s11250-015-0965-6. Epub 2015 Dec 16.
This study evaluated peanut cake as a replacement for soybean meal in the diet of steers. We used five castrated Holstein × Zebu steers, fistulated, with average live weight 550 kg, in a 5 × 5 Latin square design. The diets were composed of Tifton hay and ground corn with peanut cake (0, 25, 50, 75, and 100 %) as a replacement for soybean meal in the concentrate. Intake (kg/day) of dry matter, neutral detergent fiber, and crude protein were not affected by peanut cake, but ether extract intake increased linearly with the level of peanut cake in the diet. The digestibility of dry matter showed a quadratic effect, with a calculated maximum regression level of 56 % at 37 % replacement. There was no effect of the level of peanut cake on metabolizable energy intake and net energy, ammonia nitrogen, rumen pH, plasma urea, and glucose concentrations. We recommend replacing soybean meal in the concentrate with up to 40 % peanut cake.
本研究评估了花生粕替代阉牛日粮中豆粕的效果。我们采用5头去势的荷斯坦×瘤牛阉牛，安装了瘘管，平均活重550千克，采用5×5拉丁方设计。日粮由蒂夫顿干草和玉米粉组成，精料中用花生粕（0%、25%、50%、75%和100%）替代豆粕。干物质、中性洗涤纤维和粗蛋白的摄入量（千克/天）不受花生粕影响，但乙醚提取物摄入量随日粮中花生粕水平呈线性增加。干物质消化率呈现二次效应，在替代率为37%时计算得出的最大回归水平为56%。花生粕水平对代谢能摄入量、净能、氨氮、瘤胃pH值、血浆尿素和葡萄糖浓度没有影响。我们建议在精料中用高达40%的花生粕替代豆粕。
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