Effects of Flaxseed Processing Method on Performance,Egg Quality and Egg Nutrient and Fatty Acid Contents of Beijing-You Chickens during Late Laying Period
Effects of Flaxseed Processing Method on Performance,Egg Quality and Egg Nutrient and Fatty Acid Contents of Beijing-You Chickens during Late Laying Period
This study was conducted to investigate the effects of flaxseed processing method on performance,egg quality and egg nutrient and fatty acid contents of Beijing-You chickens during late laying period.A total of 405 sixty-four-week-old Beijing-You chickens with good physical condition were divided into 3 groups with 5 replicates per group and 27 chickens per replicate.All groups were fed with an experimental diet with the flax-seed level of 12％,among them,group A(control group)was whole flaxseed,group B was broken flaxseed,and group C was extruded flaxseed.The pre-trial lasted for 7 days,and the formal trial lasted for 56 days.The results showed as follows:1)compared with group A and group B,the soft broken egg rate of group C was significantly decreased(P＜0.05).2)Compared with group A and group C,the yolk index of group B was significantly decreased(P＜0.05).3)There were no significant differences in egg main nutrient contents a-mong all groups(P＞0.05).4)Compared with group A,the contents of α-linolenic acid(α-ALA),eicosap-entaenoic acid(EPA)and ω-3 polyunsaturated fatty acid(ω-3 PUFA)/ω-6 polyunsaturated fatty acid(ω-6 PUFA)in egg of group C were significantly increased(P＜0.05),the egg ω-3 PUFA content of group B and group C was significantly increased(P＜0.05).Compared with group B,the α-ALA content and ω-3 PUFA/ω-6 PUFA in egg of group C were significantly increased(P＜0.05).In conclusion,feeding extruded flaxseed can reduce the soft broken egg rate of Beijing-You chickens,increase the egg ω-3 PUFA content,and the en-richment effect is better than that of whole flaxseed and broken flaxseed.[Chinese Journal of Animal Nutri-tion,2024,36(12):7678-7686]
维普
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