Effect of Montmorillonite and Carbon Black Mixture on Production Performance,Egg Quality,Serum Biochemistry and Antioxidant Capacity of Wannan Yellow Chicken
Effect of Montmorillonite and Carbon Black Mixture on Production Performance,Egg Quality,Serum Biochemistry and Antioxidant Capacity of Wannan Yellow Chicken
[Objective]The aim of this experiment was to investigate the effects of montmorillonite and carbon black mixture(MMT-CB)on production performance,egg quality,serum biochemical indicators and antioxidant capacity of Wannan Yellow chickens.[Method]A total of 6 480 30-week-old Wannan Yellow chickens were randomly divided into three groups with six replicates in each group and 360 chick-ens in each replicate.The control group was fed with basal diet,MMT-CB 1 group and MMT-CB2 group were fed with diets supplemented with 0.1％MMT-CB 1 and 0.1％MMT-CB2 in the basal diet,respec-tively.The trial period was 56 d.[Result]① Compared with the control group,diets supplemented with MMT-CB significantly increased egg production rate(P＜0.05),diets supplemented with MMT-CB had no significant effects on the average egg weight,fertilization rate,hatching rate and healthy chick rate(P＞0.05),while there was a trend of decreasing the feed-to-egg ratio in the stage of 28-56 d(P＜0.01).② Diets supplemented MMT-CB significantly increased egg protein height(28 d,56 d),Haugh units(28 d,56 d),and thick albumen ratio(28 d,P＜0.05),and significantly decreased thin albumen ratio of eggs at 28 d(P＜0.05).In addition,MMT-CB 1 significantly decreased eggshell thickness of eggs at 56 d(P＜0.05).③ Diets supplemented MMT-CB significantly decreased the serum triglyceride content,and MMT-CB 1 significantly increased the serum total protein level(P＜0.05).④ Diets supplemented MMT-CB significantly increased the se-rum glutathione peroxidase activity and total antioxidant capacity(P＜0.05).[Conclusion]In conclu-sion,dietary MMT-CB supplementation can improve the feed-to-egg ratio and egg quality,and has ben-eficial effects on the protein metabolism,fat metabolism and antioxidant capacity of Wannan Yellow chicken.
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