华南农业大学学报2012，Vol.33Issue(4)：539-543,5.
饲粮中添加DHA复合添加剂对蛋鸡生产性能和蛋品质的影响
Effects of DHA Compound Additives in Diets on Production Performance and Egg Quality of Laying Hens
摘要
Abstract
In order to investigate influence of DHA compound additives in diets on egg quality and production performance, 96 Hy-Line layers were divided into 4 groups at random, and each group consisted of 6 cages with 4 laying hens per cage. Group I was control group and fed with basal diet. Groups II -IV were experimental groups and fed increasing levels of DHA compound additives at 2% ,4% and 8% respectively. Results showed that average laying rate, average egg shape index and average feed/egg ratio of all groups were not significantly different (P > 0. 05) ; the average egg mass of groups II - IV were found to be significantly higher than that of group I (P <0. 01) in the whole trial period. Average haugh unit of group IV was also significantly higher than that of group I in the first two weeks ( P < 0. 01) . In the third week, average haugh unit of group IV was significantly higher than that of the other three groups ( P < 0. 05 ). In the last two weeks, average contents of DHA in groups II - IV were significantly higher than those of group I (P < 0. 01 ) , whereas group IV was the highest. To sum up, the effects of DHA compound additive in diets can improve production performance and egg quality. According to the experiment results, the 8% DHA compound additive in diets is found to be the best approach.关键词
DHA/复合添加剂/蛋品质/生产性能Key words
DHA/compound additive/egg quality/production performance分类
农业科技引用本文复制引用
彭瑛,张彬,占今舜,李丽立,曹建明,罗锐,高建武,胡金杰,罗佳捷,范觉鑫..饲粮中添加DHA复合添加剂对蛋鸡生产性能和蛋品质的影响[J].华南农业大学学报,2012,33(4):539-543,5.基金项目
国家自然科学基金(31072053) （31072053）
