Physiological effects of transport duration on stress biomarkers and meat quality of medium-growing Yellow broiler chickens
文献类型： 外文期刊
作者： Gou, Z. 1 ; Abouelezz, K. F. M. 1 ; Fan, Q. 1 ; Li, L. 1 ; Lin, X. 1 ; Wang, Y. 1 ; Cui, X. 1 ; Ye, J. 1 ; Masoud, M. A. 2 ; Ji 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Guangdong Key Lab Anim Breeding & Nutr, Inst Anim Sci,Key Lab Anim Nutr & Feed Sci South, Minist Agr & Rural Affairs,State Key Lab Livestoc, Guangzhou 510640, Peoples R China
2.Assiut Univ, Fac Agr, Dept Poultry Prod, Assiut 71526, Egypt
关键词： BW loss; Indigenous chickens; Meat analysis; Plasma metabolites; Pre-slaughter handling
期刊名称：ANIMAL （ 影响因子：3.24； 五年影响因子：3.223 ）
ISSN： 1751-7311
年卷期： 2021 年 15 卷 2 期
页码：
收录情况： SCI
摘要： Pre-slaughter transport exerts negative effects on broilers' welfare, meat yield, and meat quality, but little is known about the effect of transport on medium-growing broiler chickens. This study aimed at evaluating the effects of different durations of transport (0, 0.5, 1, 2, and 3h) on stress biomarkers and meat quality of medium-growing Yellow-feathered broiler chickens. One hundred and eighty Chinese Yellow-feathered broilers aged 75days (marketing age), of 2.02 kg average BW, were allotted into live groups; each group contained six replicates (six birds/replicate (crate)). Each crate with dimensions 74x 55x 27an (length x width x height) was loaded with six birds, that is, 30kg live BW/m(2) crate. The tested transport durations increased BW loss (linear, P<0.01), plasma concentrations of ACTH (linear, P<0.10), cortisol and corticosterone (quadratic, P<0.05), and activity of glutathione peroxidase (linear, P<0.05), whereas plasma glucose was not affected. In breast muscle, contents of glycogen, lactic acid, malondialdehyde, and reduced glutathione were not affected (P>0.05), but total antioxidant capacity decreased (linear, P<0.01). The drip loss of breast muscle increased (linear, P<0.01), whereas shear force, pH at 24 h postmortem, and breast meat color lightness (L*), redness (a*), and yellowness (b*) scores were not affected. In conclusion, the tested transport durations (from 0.5 to 3h) increased BW loss and some plasma stress biomarkers in 75-day-old Yellow-feathered broiler chickens, but the effect on meat quality attributes was minor. (C) 2020 The Authors. Published by Elsevier Inc. on behalf of The Animal Consortium.
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