Feeding systems and food intake by housed dairy cows

Feeding systems and food intake by housed dairy cows
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饲养系统和圈养奶牛的食物摄入量

DOI:
10.1079/pns19850056
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发表时间:
1985
影响因子:
7
通讯作者:
J. A. Bines
J. A. Bines
中科院分区:
医学2区
文献类型:
--
作者:
J. A. Bines

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代谢能(ME)系统的发展极大地增加了我们对饲料能量值、奶牛对能量的需求以及泌乳不同阶段能量(饲料)增量可能对产奶量的反应的了解。因此,可以将奶牛作为一个个体,并根据其生产潜力分配食物。要做到这一点,需要定期记录每头奶牛的表现,定期调整饮食,并对单独喂养奶牛所需的设备进行大量投资。这种系统只可能用于以下情况:
The development of the metabolizable energy (ME) system has greatly increased our knowledge of the energy value of feeds, the requirement of the cow for energy and the likely milk yield response to increments of energy (feed) at different stages of lactation. It is thus possible to treat the cow as an individual and allocate food according to her production potential. T o do so requires the regular recording of each cow’s performance, regular adjustment of diets and extensive investment in the equipment required to feed cows individually. Such a system is only likely to be used where :