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- Title
抗菌肽对异育银鲫生长, 免疫和抗氧化性能的影响.
- Authors
郭益红; 赵宇凡; 范 勇; 朱文婷; 赵永志; 宣雄智; 李文嘉
- Abstract
The experiment was designed to evaluate the effects of different levels of antimicrobial pep‐ tides on the growth, immunity and antioxidant performance of the Juvenile Carassius auratus gibelio.In the experiment, five groups of isonitrogenous and isolipidic diets were designed. A diet without antimicrobial peptides as control group (CK group), and the diets with 50, 75, 100, 125 mg/kg antimicrobial pep‐ tides as experimental diets (D1 group, D2 group, D3 group, D4 group) were fed to Carassius auratus gibelio in the breeding tank [initial average body mass (9.40±0.20) g], three repeats for each group, each group had 25 tail of test fish. After 8 weeks of culture, the fish body composition, growth and digestion performance, immune and antioxidation performance, as well as the serum related indexes were tested. The results showed that: compared with CK group, the growth performance and feed utilization rate of the fish were not influenced by the different levels of the antimicrobial peptides (P>0.05); the muscle crude lipid content the fish were decreased with the increased addition level of the antimicrobial peptides, the crude lipid content of the muscle and liver of D4 group were significantly lower than that of CK group (P<0.05); compared with CK group, the activities of trypsin in the anterior intestine of D2 group increased significantly (P<0.05); the superoxide dismutase activities and total antioxidant capacity of the liver in D2 and D3 groups were significantly increased (P<0.05); the activities of serum lysozyme in D2 and D3 groups increased significantly (P<0.05). The above results indicated that adding Fulitai antibacterial peptide to the diets of Juvenile Carassius auratus gibelio could reduce the muscle lipid content and improve the immune and antioxidant performance of the fish, and the effect would be better when the addition amount of antibacterial peptide were at 75 mg/kg or 100 mg/kg.
- Publication
Feed Industry, 2023, Vol 44, Issue 24, p78
- ISSN
1001-991X
- Publication type
Article
- DOI
10.13302/j.cnki.fi.2023.24.012