Forage intake by grazing livestock: a review.
Forage intake by grazing livestock: a review.
复制标题
放牧牲畜的饲料摄入量：综述。
DOI：
--
复制
发表时间：
1978
期刊：
影响因子：
--
通讯作者：
R. Pieper
中科院分区：
文献类型：
--
作者：
F. J. Córdova;J. D. Wallace;R. Pieper
亮点：关于圈养牲畜的定量摄入量已积累了丰富的实验数据；这些信息已被广泛利用，以发展对此类动物的更敏锐的营养知识。然而，令人遗憾的是，这种类型的数据对于放牧牲畜来说是缺乏的。用于测量放牧条件下动物摄入量的程序往往令人失望，许多程序提供的数据不可靠。放牧牲畜的饲料采食量通常用g DM或OM/wk-75表示，或简单地表示为体重的百分比。美国西部牛和羊放牧范围的INTA gk e估计值大多在40至90g DM/wkg‘“或体重的1至2.8%之间。随着植物成熟度的提高，摄入量通常会减少。
Highlight: A wealth of experimental data has been accumulated on quantitative intake of pen-fed livestock; such information has been widely employed to develop a keener nutritional knowledge of such animals. Data of this type are, however, distressingly lacking for grazing livestock. The procedures used for measuring intake by animals under grazing conditions have often been disappointing, and many have provided unreliable data. Forage intake measurements with grazing livestock are more commonly expressed as g DM or OM/Wk -75 or simply as a percent of body weight. Most estimates of inta gk e for cattle and sheep grazing ranges in Western United States fall within the range of 40 to 90 g DM/Wkg’” or from 1 to 2.8% of body weight. Intake usually decreases with advancing plant maturity.