JOURNAL OF CENTRAL EUROPEAN AGRICULTURE
|
2023年
/
24卷
/
04期
关键词:
cow;
push-up;
dairy cow;
TMR;
milk yield;
TOTAL MIXED RATION;
SHORT COMMUNICATION;
DELIVERY AFFECTS;
LYING BEHAVIOR;
FREQUENCY;
ASSOCIATIONS;
MANAGEMENT;
D O I:
10.5513/JCEA01/24.4.3827
中图分类号:
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号:
0905 ;
摘要:
This study evaluated the effect of different feed pushing-up frequencies on the behavior, dry matter intake and milk production of dairy cows in the first lactation. In each monitoring, 32 -37 dairy cows of Czech spotted cattle at the peak of lactation were represented. After the feed was delivered to cows, the feed was pushed-up 2, 3, 4, 5, or 6 times in 5 different frequencies within 12 hours. Each frequency was monitored for 1 month in four repetitions. The behavior of dairy cows during feeding was monitored for 15 minutes after the feed delivery and after each food pushing-up. We evaluated how often the dairy cows came to the feeding table, how they used mixed ration and milk production. The frequency of feed pushing-ups has shown an effect on the dairy cow's milk yield. As a result of the 2, 3, 4, 5 and 6 feed pushing-up frequencies, the average milk production per cow per day was 24.52; 25.84; 25.48; 25.78; 26.03 kg. Also feed conversion increased with the frequency of feed pushing-ups to 1.22; 1.29; 1.25; 1.30 aand nd 1.30 kg of milk from 1 kg of received dry matter. TMR dry matter utilization increased by 1% on average.
机构:
Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, ÅsDepartment of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, Ås
Naadland S.S.
Steinshamn H.
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机构:
Norwegian Institute of Bioeconomy Research (NIBIO), TingvollDepartment of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, Ås
Steinshamn H.
Randby Å.T.
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机构:
Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, ÅsDepartment of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, Ås