Effect of catalase on the growth performance, antioxidation, and microbial metabolism of weaned rabbits

Ning Liu, Yien Lin, Shuaibao Wang and Jianping Wang
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Ning Liu: Department of Animal Science, Henan University of Science and Technology, Luoyang, PR China
Yien Lin: Department of Animal Science, Henan University of Science and Technology, Luoyang, PR China
Shuaibao Wang: Center of Animal Disease Control, Municipal Bureau of Agriculture and Rural Affair, Sanmenxia, PR China
Jianping Wang: Department of Animal Science, Henan University of Science and Technology, Luoyang, PR China

Czech Journal of Animal Science, 2023, vol. 68, issue 12, 508-515

Abstract: The present study aimed to investigate the effect of catalase (CAT) on the growth performance, antioxidation, and microbial metabolism of weaned rabbits. Dietary treatments consisted of control and CAT supplementation at 100 (T1), 150 (T2), and 200 IU/kg of diet (T3). A total of 240 weaned rabbits were randomly assigned to 4 groups with 6 replicates of 10 rabbits each. The feeding trial lasted for 28 days. Results showed that T2 and T3 increased (P < 0.05) body weight gain and gain/feed ratio, and decreased (P < 0.05) diarrhoea rate, compared to the control. Also, serum antioxidative parameters and oxidative stress products were beneficially regulated (P < 0.05) by the dietary CAT administration. Faecal microbiota including Bacteroidetes, Prevotella, and Bifidobacterium in T2 or T3 was increased (P < 0.05). Dietary CAT with changed microbiota further influenced the metabolites from carbohydrates and proteins, evidenced by increased lactic acid, acetate, branched-chain fatty acids, and short-chain fatty acids, and decreased valerate, isovalerate, methylamine, tryptamine, putrescine, cadaverine, spermidine, and total amines. It is concluded that CAT can be used to improve growth performance by beneficially regulating the antioxidation, microbiota, and metabolites in weaned rabbits.

Keywords: amine; gut microbe; short-chain fatty acid; oxidant injury product (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:68:y:2023:i:12:id:133-2023-cjas

DOI: 10.17221/133/2023-CJAS

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