Stress Associated with Simulated Transport, Changes Serum Biochemistry, Postmortem Muscle Metabolism, and Meat Quality of Broilers

文献类型： 外文期刊

第一作者： Zheng, Aijuan

作者： Zheng, Aijuan;Pirzado, Shoaib Ahmed;Chen, Zhimin;Chang, Wenhuan;Cai, Huiyi;Liu, Guohua;Lin, Shumei

作者机构：

关键词： broiler; meat quality; motion; vibration; muscle metabolism; transportation stress

期刊名称：ANIMALS （ 影响因子：2.752； 五年影响因子：2.942 ）

ISSN： 2076-2615

年卷期： 2020 年 10 卷 8 期

页码：

收录情况： SCI

摘要： Simple Summary The objective of this study was to investigate the effects of the transportation on broilers through the use of a vibration and motion simulation machine. Short-term transport stress induced significant physiological changes in broiler chickens. Simulation of the vibration and motion associated transport for 2 h altered hormonal secretion and blood biochemical characteristics. However, after 4 h, the birds appear to regain homeostatic equilibrium. Despite this, the stress activated antioxidant defenses, acidified muscles and increased peroxidation, as well as decreasing the meat quality of broilers. This study supports and extends previous work that identified transportation as a major risk in relation to bird welfare and meat quality. Many factors contribute to the stress of transporting broilers from the farm to the processing plant. Using a motion simulation machine, a total of 144 male broilers were employed to determine the effect of motion, vibration, and feed withdrawal during transportation on serum biochemical parameters, postmortem muscle metabolism, and meat quality of broilers. The results indicated that transportation did not affect the activity of lactate dehydrogenase, gamma-glutamyl transferase, aspartate aminotransferase, creatine kinase, and glucose in the serum, glutathione peroxidase in the breast and thigh muscle, nitric oxide synthase (NOS) in the breast, and heat stress protein 70 mRNA expression level in the liver (p> 0.05). Serum triiodothyronine, thyroxine, and insulin concentration declined with 2 h transportation (p< 0.05) and recovered with 4 h transportation (p< 0.05). NOS concentration in the thigh increased with 2 h transportation (p< 0.05) and recovered with 4 h transportation (p< 0.05). Two-hour and 4 h transportation increased the activity of superoxide dismutase in both muscles. Malondialdehyde, lactic acid, and drip loss(24 h)in both thigh and breast muscles increased, and glycogen in both muscles decreased with increasing transportation times (p< 0.05). Two-hour transportation did not influence pH(45 min)and pH(24 h)in the breast and thigh muscle, but these indexes decreased with 4 h transportation. This experiment supports and extends previous work that identified transportation as a major risk in relation to bird welfare and meat quality.

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