Effects of Xylooligosaccharide(XOS) and Probiotics(PRO) on Production Performance, Egg Quality and Intestinal Short-chain Fatty Acids of Laying Hens in Late Laying Period

更新时间:2023-05-28

【摘要】[Objective]The paper was to study the effects of xylooligosaccharide(XOS) and probiotics(PRO) and their interaction on the production performance, egg quality and intestinal short-chain fatty acids of laying hens in late laying period.[Method]A total of 360 74-week-old Romain brown laying hens were randomly divided into four groups, six replicates each group and 15 chickens each replicate.The trial lasted 63 d.The lay-ing hens in control group(CON) were fed with basal diet, and those in experimental groups were fed with the basal diets adding with 150 mg/kg XOS(XOS group), 100 mg/kg probiotics(PRO group), 150 mg/kg XOS + 100 mg/kg probiotics(XOS-PRO group).[Result]Compared with the control group, the laying rate, daily egg production, yolk ratio, colonic acetic acid and caecal propionic acid in XOS group increased significant-ly(P 0.05), but significantly increased colonic acetic acid(P < 0.05).XOS and PRO had no interaction effect on the production performance, egg quality and intestinal short-chain fatty acids of laying hens in late laying period(P < 0.05).[Conclusion]Adding XOS to the diet of laying hens in late laying period could increase the content of short-chain fatty acids in the hindgut of laying hens, and effectively improve the production performance and egg quality of laying hens in late laying period.Adding PRO to the diet did not significantly improve the production performance and egg quality of laying hens, and there was no interaction effect between XOS and PRO.

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