Effects of transport stress on physiological responses and milk production in lactating dairy cows
Effects of transport stress on physiological responses and milk production in lactating dairy cows
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DOI：
10.5713/ajas.18.0108
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发表时间：
2019-03-01
期刊：
影响因子：
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通讯作者：
Lee, Sang-Rak
中科院分区：
文献类型：
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作者：
Hong, Heeok;Lee, Eunchae;Lee, Sang-Rak
目的：本研究旨在探讨运输应激对泌乳奶牛生理、血液学及产奶性能的影响。试验组（TG）用卡车运输200 km，运输时间4 h，对照组（NTG）在建国大学农场用支柱束缚4 h。在运输前24 h;运输期间1、2和4 h;运输后2、24和48 h采集血液和乳汁样品。牛奶产量测定在24小时运输前，0小时运输过程中，24，48，和72小时后transport.Results：白细胞，中性粒细胞，单核细胞的数量在TG显着高于NTG在每个实验时间点。TG组淋巴细胞数显著高于对照组（p
Objective: This study was conducted to investigate the effect of transport stress on physiological and hematological responses and milk performance in lactating dairy cows.Methods: Ten lactating dairy cows were randomly divided into 2 groups. The treatment group (TG) was transported 200 km for 4 h by truck, and the control group (NTG) was restrained by stanchion for 4 h in Konkuk University farm. Blood and milk samples were collected at 24 h pre-transport; 1, 2, and 4 h during transport; and 2, 24, and 48 h post-transport. Milk yields were measured at 24 h pre-transport, 0 h during transport, and 24, 48, and 72 h post-transport.Results: Leukocyte, neutrophil, and monocyte numbers in the TG were significantly higher than those of the NTG at each experimental time point. Lymphocyte numbers in the TG were significantly (p