洪江雪峰乌骨鸡和罗曼粉蛋鸡鸡蛋营养成分和蛋品质比较

试验旨在比较洪江雪峰乌骨鸡和罗曼粉蛋鸡的鸡蛋营养成分和蛋品质,为洪江雪峰乌骨鸡蛋用新品系选育提供依据。随机选取40周龄的洪江雪峰乌骨鸡(绿壳)、洪江雪峰乌骨鸡(粉壳)和罗曼粉壳蛋鸡各100只,每品种鸡随机分为5个重复,每个重复20只,在相同饲粮和饲养管理方式下进行饲养,45周龄收集鸡蛋检测营养成分和蛋品质指标。结果表明:洪江雪峰乌骨鸡绿壳蛋的蛋黄比例极显著高于罗曼粉壳蛋(P<0.01),蛋重、蛋壳厚度、哈氏单位极显著低于罗曼粉壳蛋(P<0.01),洪江雪峰乌骨鸡粉壳蛋的蛋重和蛋壳厚度极显著低于罗曼粉壳蛋(P<0.01);洪江雪峰乌骨鸡蛋中的多不饱和脂肪酸和硒元素含量均极显著高于罗曼粉壳蛋(P<0.01),洪江雪峰乌骨鸡绿壳蛋胶原蛋白含量极显著高于罗曼粉壳蛋(P<0.01)。综上所述,洪江雪峰乌骨鸡鸡蛋蛋黄比例高,蛋黄多不饱和脂肪酸、胶原蛋白、硒和锰含量高,适合作为优质禽蛋开发。

Analysis on Nutritional Components and Egg Quality of Hongjiang-Xuefeng Black-bone Hens and Lohmann Laying Hens

This experiment was conducted to compare the nutritional composition and egg quality of Hongjiang-Xuefeng black-bone hens and Lohmann laying hens, which was aimed to provide a basis for the egg breeding of Hongjiang-Xuefeng black-bone hens. A total of 100 Hongjiang-Xuefeng black-bone hens(green shell egg-laying), 100 Hongjiang-Xuefeng black-bone hens(pink shell egg-laying) and 100 Lohmann laying hens at 40 weeks of age were randomly selected in the experiment, and each breed were randomly divided into 5 replicates and 20 laying hens per replicate, and they were raised with the same feedstuffs and management mode. At 45 weeks of age, eggs were collected to detect indicators of nutritional content and egg quality. The results showed that the egg weight, Haugh unit and shell thickness of green eggs of Hongjiang-Xuefeng black-bone hens were significantly lower than the eggs of Lohmann laying hens(P<0.01),and the yolk ratio of green eggs of Hongjiang-Xuefeng black-bone hens was significantly higher than the eggs from Lohmann laying hens(P<0.01). The egg weight and shell thickness of the pink eggs of Hongjiang-Xuefeng black-bone hens were significantly lower than the eggs from Lohmann laying hens(P<0.01). Besides, the content of collagen in green eggs of Hongjiang-Xuefeng black-bone hens was significantly higher than those of Lohmann hens(P<0.01) and the content of polyunsaturated fatty acid and selenium in the eggs from Hongjiang-Xuefeng black-bone hens was significantly higher than that of Lohmann pink-shell eggs(P<0.01). To sum up, the eggs of Hongjiang-Xuefeng black-bone hens had a high ratio of egg yolk, high content of egg yolk polyunsaturated fatty acid, collagen, selenium and manganese,which was suitable for the development of high-quality eggs.