Effect of Restricted Suckling of Calves on the Productivity of Crossbred Dairy Cattle

被引：0
作者：
Y.N. Msanga
M.J. Bryant
机构：
[1] Livestock Research Centre,Department of Agriculture
[2] The University of Reading,undefined
来源：
Tropical Animal Health and Production | 2003年 / 35卷
关键词：
breed; bucket feeding; calves; genotype; lactation; live weight; management; reproduction; suckling;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An experiment on restricted suckling of crossbred dairy cows was conducted at the Livestock Research Centre, Tanga in north-east Tanzania. The objective of the experiment was to evaluate the comparative productivity of Bos taurus×Bos indicus cows of medium and high levels of Bos taurus inheritance, whose calves were either bucket-reared or suckled residual milk. Lactation milk yield, length and persistency were 1563 L, 289 days, and 1.0, respectively, for the bucket-reared and 1592 L, 289 days and 1.4, respectively, for the suckling group. Days to observed oestrus, first insemination and conception for cows whose calves were bucket-reared were 47, 74 and 115 days, respectively, and 57, 81 and 126 days, respectively, for the suckling cows. The calf weights were similar at 1 year of age. The productivity of the cows, measured as the annual milk offtake, was not significantly higher for those that suckled their calves than for those whose calves were bucket-reared.
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页码：69 / 78
页数：9
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