Meat quality characteristics of chickens as influenced by housing system, sex, and genetic line interactions
Meat quality characteristics of chickens as influenced by housing system, sex, and genetic line interactions
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DOI：
10.1080/1828051x.2017.1363639
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发表时间：
2017-08
影响因子：
2.5
通讯作者：
Xiaoling Zhao;Wenshi Ren;P. Siegel;Juan Li;Yan Wang;H. Yin;Yao Zhang;Shuang Lai;G. Shu;Qing Zhu
中科院分区：
文献类型：
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作者：
Xiaoling Zhao;Wenshi Ren;P. Siegel;Juan Li;Yan Wang;H. Yin;Yao Zhang;Shuang Lai;G. Shu;Qing Zhu
摘要本试验研究了舍饲制度(笼舍和围栏)、性别和杂交组合(EMY1和EMY2)对肉鸡肉质的影响。每个杂交组合(公鸡：母鸡=1：1)的鸡(n=640)从第1天到第28天被关在笼子里。然后，将它们中的一半转移到室内地圈中，其余的在单笼中饲养。测定91日龄胸片的肉质性状。笼养鸡的脂肪百分比和组氨酸含量高于笼养鸡，而总蛋白含量和肌纤维密度(MDS)低于笼养鸡。杂交EMY1的MDS高于EMY2(p<；0.05)，但脂肪含量和肌纤维直径(MDM)低于EMY2(p<；0.05)。男性肌肉红亮，MDM、甘氨酸和脯氨酸含量高于女性(p<；0.05)。笼养雌性比笼养雌性有更小的MDM和更高的MDS(p<；0.05)。一般来说，单独的住房系统，或与性别和遗传系的交互作用，都会影响胸肌的黄度、肌纤维特性、蛋白质%、脂肪%、肌纤维密度和%His。
Abstract This study evaluated the effects of housing system (cage versus pen), sex and line cross (EMY1 and EMY2) on meat quality in meat-type chickens. Chickens (n = 640) from each line cross (males: females = 1:1) were housed in batteries from d 1 to 28. Then, half of them were transferred to indoor floor pens, and the others were raised in single cages. Meat quality traits of breast fillets were measured at 91 d of age. Percent lipid and histidine were higher, whereas % total protein and myofibre density (MDS) were lower in caged than penned chickens. Cross EMY1 had higher MDS, but lower lipid % and myofibre diameters (MDM) than EMY2 (p < .05). Males had redder and brighter muscles and higher MDM and contents of glycine and proline than the females (p < .05). Penned females had smaller MDM and higher MDS than their caged counterparts (p < .05). Generally, housing systems alone, or interacting with sex and genetic line, affected yellowness, myofibre characteristics, % protein, % lipid, myofibre density, and % His of breast muscle.