不同日龄樱桃谷鸭生长性能及肉品质测定

发布时间：2018-06-10 14:46

本文选题：樱桃谷鸭 + 不同日龄　；参考：《中国畜牧杂志》2017年05期

【摘要】：实验旨在研究不同日龄樱桃谷鸭的肉质变化规律,为确定合理的上市日龄提供科学依据。以樱桃谷鸭为实验材料,测定其28、38、42、45日龄的生长性能、常规肉品质以及肌肉营养物质含量。结果表明:28日龄肉鸭的活重、胸肌重、腿肌重、胸肌剪切力、腿肌剪切力等指标均显著低于其他3个日龄(P0.05);而38、42与45日龄间的腿肌重、腿肌剪切力均未表现出显著差异(P0.05);不同日龄胸肌、腿肌蛋白含量的变化趋势相同,都表现为先上升后下降;且4个不同日龄之间胸肌蛋白含量差异显著(P0.05);只有38日龄的腿肌蛋白含量显著高于其他日龄(P0.05);胸肌、腿肌脂肪含量在早期日龄中都具有较高水平,胸肌、腿肌脂肪含量在4个日龄中均有显著差异(P0.05),且42日龄的胸肌、腿肌脂肪含量均显著低于其他日龄(P0.05)。综上,38日龄时樱桃谷鸭肌肉蛋白沉积含量达到最大化,到42日龄时肌肉的脂肪含量明显降低;结合养殖体重,38、42日龄均可作为上市的参考日龄,提前或延迟上市或多或少都会影响肌肉营养物质的沉积。
[Abstract]:The purpose of this study was to study the meat quality of Cherry Valley ducks of different ages, and to provide scientific basis for determining the reasonable age of market. Cherry Valley Duck was used as the experimental material to determine the growth performance, meat quality and muscle nutrient content of the Duck at the age of 28 ~ 38.42 ~ (45) days. The results showed that the live weight, breast muscle weight, leg muscle weight, breast muscle shear force and leg muscle shear force were significantly lower than those of the other 3 days old (P 0.05), while the leg muscle weights between 38 ~ 42 and 45 days of age were significantly lower than those of the other three days. The shearing stress of leg muscle showed no significant difference (P 0.05), and the change trend of leg muscle protein content was the same in different day old pectoralis muscle, which showed that the content of leg muscle protein increased first and then decreased. There were significant differences in the contents of pectoralis muscle protein between 4 days of age (P 0.05), only 38 days old leg muscle protein content was significantly higher than other days of age P0.05%, breast muscle, leg muscle fat content in the early days all had a higher level, the pectoral muscle, There was significant difference in fat content of leg muscle in 4 days old, and the fat content of leg muscle of 42 days old was significantly lower than that of other days. The muscle protein content of Cherry Valley Duck was maximized at 38 days of age, and the fat content of muscle decreased significantly at 42 days of age. Early or late marketing more or less affects the deposition of muscle nutrients.
【作者单位】：江苏省动物遗传繁育与分子设计重点实验室;沭阳众客种禽有限公司;
【基金】：现代农业产业技术体系建设专项资金(CARS-43-3) 江苏省农业科技自主创新资金项目(CX(15)1010、CX(14)2070)
【分类号】：S834

【相似文献】