[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...[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 36074-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 laying 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 significantly(P<0.05),and the feed gain ratio decreased remarkably(P<0.05).PRO had no significant effect on the production performance and egg quality of laying hens in late laying period(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.展开更多
[Objective] The paper was to investigate effects of adding xylooligosaccharides( XOS) in diet on reproduction performance of lactating sows.[Method]Fifty healthy multiparous sows( Landrace × Yorkshire,3-4 fetuses...[Objective] The paper was to investigate effects of adding xylooligosaccharides( XOS) in diet on reproduction performance of lactating sows.[Method]Fifty healthy multiparous sows( Landrace × Yorkshire,3-4 fetuses) with similar parity,body condition and expected date of childbirth were randomly divided into five treatments,10 repeats each treatment,and each treatment contained an individual sow. Treatment 1 was control group( basal diet); treatment 2,treatment 3,treatment 4 and treatment 5 were adding 0. 025%,0. 050%,0. 075% and 0. 100% XOS in the basal diet,respectively. The trial lasted 35 d from 90 d of gestation until weaning. [Result]Compared to control group( treatment 1),there was no significant difference in reproduction performance of sows among four experimental groups( P > 0. 05). With the increasing addition amount of XOS,the production process of sows was shortened; the weaning back fat thickness in treatment 2,treatment 3 and treatment 4 slightly increased,while the estrus intervals in treatment 2,treatment 3,treatment 4 and treatment 5 were shortened.[Conclusion]It was the most economic and effective by adding 0. 050% XOS in the sows diet.展开更多
文摘[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 36074-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 laying 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 significantly(P<0.05),and the feed gain ratio decreased remarkably(P<0.05).PRO had no significant effect on the production performance and egg quality of laying hens in late laying period(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.
文摘[Objective] The paper was to investigate effects of adding xylooligosaccharides( XOS) in diet on reproduction performance of lactating sows.[Method]Fifty healthy multiparous sows( Landrace × Yorkshire,3-4 fetuses) with similar parity,body condition and expected date of childbirth were randomly divided into five treatments,10 repeats each treatment,and each treatment contained an individual sow. Treatment 1 was control group( basal diet); treatment 2,treatment 3,treatment 4 and treatment 5 were adding 0. 025%,0. 050%,0. 075% and 0. 100% XOS in the basal diet,respectively. The trial lasted 35 d from 90 d of gestation until weaning. [Result]Compared to control group( treatment 1),there was no significant difference in reproduction performance of sows among four experimental groups( P > 0. 05). With the increasing addition amount of XOS,the production process of sows was shortened; the weaning back fat thickness in treatment 2,treatment 3 and treatment 4 slightly increased,while the estrus intervals in treatment 2,treatment 3,treatment 4 and treatment 5 were shortened.[Conclusion]It was the most economic and effective by adding 0. 050% XOS in the sows diet.
