| Literature DB >> 27087166 |
Hyeok-Joong Kang1,2, In Kyu Lee1,2, Min-Yu Piao1,2, Chae-Won Kwak1,2, Min Jeong Gu1,2, Cheol Heui Yun1,2, Hyun-Jin Kim1,2, Hyeon-Ju Ahn1,2, Hee-Bal Kim1,2, Gyeom-Heon Kim3, Soo-Ki Kim3, Jong-Youl Ko4, Jong K Ha1,2, Myunggi Baik1,2.
Abstract
This study examined the effects of road transportation on metabolic and immunological responses in dairy heifers. Twenty Holstein heifers in early pregnancy were divided into non-transported (NT; n = 7) and transported (T; n = 13) groups. Blood was collected before transportation (BT), immediately after transportation for 100 km (T1) and 200 km (T2), and 24 h after transportation (AT). The T heifers had higher (P < 0.05) blood cortisol and non-esterified fatty acid concentrations after T1 and T2 than did NT heifers. By contrast, the T heifers had lower (P < 0.05) serum triglyceride concentrations after T1 and T2 than had the NT heifers. The serum cortisol and triglyceride concentrations returned (P > 0.05) to the BT concentrations at 24 h AT in the T heifers. The granulocyte-to-lymphocyte ratio and the percentage of monocytes were higher (P < 0.05) after T2 in the T heifers than in the NT heifers, suggesting that transportation stress increased the numbers of innate immune cells. T heifers had higher (P < 0.01) plasma haptoglobin concentrations than NT heifers 24 h AT. In conclusion, transportation increased cortisol secretion and was correlated with increased metabolic responses and up-regulation of peripheral innate immune cells in dairy heifers.Entities:
Keywords: dairy heifers; early pregnant; metabolic and immunological responses; stress; transportation
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Year: 2016 PMID： 27087166 DOI： 10.1111/asj.12604
Source DB: PubMed Journal: Anim Sci J ISSN： 1344-3941 Impact factor: 1.749