Department of Animal Breeding and Nutrition, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland.
Department of Meat Science, West Pomeranian University of Technology, Szczecin, Poland.
Anim Sci J. 2022 Jan-Dec;93(1):e13709. doi: 10.1111/asj.13709.
The aim of the study was to compare carcass and meat quality traits in 42-day-old Ross 308 and Cobb 500 broiler chickens. Forty carcasses were studied. Acidity (pH ) and electrical conductivity (EC ) of pectoralis major muscle and drumstick were determined 24 h postmortem. After carcass cutting, samples of breast and leg meat were collected for determination of quality traits. Broiler genotype had a significant effect on abdominal fat content in carcass and on water, protein, fat, sodium, and magnesium content in breast meat. Bird origin had an effect on the lightness, yellowness, horizontal diameter of muscle fiber, horizontal:vertical (H:V) diameter ratio, and most textural characteristics of pectoralis major muscle, as well as on the pH (pH ), electrical conductivity (EC ), and yellowness (b*) of leg muscles. Sex of birds had a significant effect on carcass weight, water, fat and collagen content, L*, a*, b* color attributes, and chewiness and gumminess of breast meat and on water and protein content in leg muscles. The present study provided information on the differences in carcass and meat quality between Ross 308 and Cobb 500 broiler chickens.
本研究旨在比较 42 日龄罗斯 308 肉鸡和科宝 500 肉鸡的胴体和肉质特性。研究了 40 个胴体。宰后 24 小时测定胸肌和鸡腿的酸度（pH）和电导率（EC）。在胴体切割后，采集胸肉和腿肉样本以测定品质特性。肉鸡基因型对胴体腹脂含量以及胸肉水分、蛋白质、脂肪、钠和镁含量有显著影响。鸡的起源对胸肌的亮度、黄度、肌纤维的水平直径、水平：垂直（H：V）直径比以及大部分的纹理特性以及腿肌的 pH 值（pH）、电导率（EC）和黄度（b*）有影响。鸡的性别对胴体重量、水分、脂肪和胶原蛋白含量、L*、a*、b*颜色属性以及胸肉的咀嚼性和粘性以及腿肌的水分和蛋白质含量有显著影响。本研究提供了罗斯 308 肉鸡和科宝 500 肉鸡在胴体和肉质方面的差异信息。
