食用糖蜜/尿素块对随意采食紫狼尾草的舍饲公牛生长的影响。

Effect of consumption of molasses/urea blocks on the growth of housed bullocks fed ad libitum with Pennisetum purpureum.

作者信息

Ayala A, Tun E

机构信息

Department of Animal Nutrition, Faculty of Veterinary Medicine and Animal Production, University of Yucatan, Mexico.

出版信息

Trop Anim Health Prod. 1991 May;23(2):95-8. doi: 10.1007/BF02361189.

DOI:10.1007/BF02361189

PMID:1858167

Abstract

Ten bullocks in individual pens were provided ad libitum with cut chopped pasture grass (Pennisetum purpureum). One group of five animals had access to a molasses/urea block (experimental group) and the other group of five did not (control group). Daily dry matter intakes of 5.04 kg/animal (control group) and 4.83 kg/animal (experimental group) were not significantly different. However the experimental group gained weight at a significantly (P less than 0.05) faster rate (514 g/animal per day) than the control group (346 g/animal per day). Food conversion efficiency was significantly (P less than 0.01) better in the experimental group (11.6 kg feed per kg weight gained) than in the control group (16.4 kg feed per kg weight gained). Mean daily intake of the molasses urea blocks was 206 g per animal.

摘要

将十头公牛分别圈养，随意投喂切碎的象草（狼尾草）。一组五头牛可以使用糖蜜/尿素块（实验组），另一组五头则不能（对照组）。对照组每头动物每日干物质摄入量为5.04千克，实验组为4.83千克，两者无显著差异。然而，实验组体重增加速度显著更快（P小于0.05），为每天每头动物514克，而对照组为每天每头动物346克。实验组的食物转化效率显著更高（P小于0.01），为每增加1千克体重消耗11.6千克饲料，而对照组为每增加1千克体重消耗16.4千克饲料。每头动物糖蜜尿素块的平均每日摄入量为206克。