Does the location of concentrate provision affect voluntary visits, and milk and milk component yield for cows in an automated milking system?

被引：13

作者：

Hare, K. ^{[1
]}

DeVries, T. J. ^{[2
]}

Schwartkopf-Genswein, K. S. ^{[3
]}

Penner, G. B. ^{[1
]}

机构：

[1] Univ Saskatchewan, Dept Anim & Poultry Sci, Saskatoon, SK S7N 5A8, Canada

[2] Univ Guelph, Dept Anim Biosci, Guelph, ON N1G 2W1, Canada

[3] Agr & Agri Food Canada, Lethbridge, AB T1J 4B1, Canada

来源：

CANADIAN JOURNAL OF ANIMAL SCIENCE | 2018年 / 98卷 / 02期

关键词：

automated milking system; concentrate; dairy cow; milking frequency; LACTATING DAIRY-COWS; FEEDING-BEHAVIOR; FREQUENCY; CATTLE;

D O I：

10.1139/cjas-2017-0123

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Eight Holstein cows were used in a cross-over design to test whether concentrate allocation in an automated milking system (AMS) affects dry matter intake (DMI) and milk production. Cows were fed a high-energy partial mixed ration (HE-PMR) with 0.5 kg of AMS concentrate or a low-energy PMR (LE-PMR) with 5.0 kg of AMS concentrate. The AMS concentrate intake was greater and PMR intake was reduced for LE-PMR than HE-PMR. Milk, fat, and protein yields were not affected by treatment. In a guided-traffic flow barn, providing a PMR with greater energy density increases DMI, but has no effect on milk and milk component yield.

引用

页码：399 / 404

页数：6

共 35 条

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