Effects of Aquatic Feed Supplementation on Growth and Immune Function of Aquatic Animals

  • Haihui Cui


The aim is to further explore the mechanism of antimicrobial peptides to control the growth and immune function, to provide theoretical basis for the application of antimicrobial peptides in the practice. The contents are as below. The effects of antimicrobial peptides on the growth and immune function of carcasses are systematically described from the perspective of apparent traits, biochemistry and molecular biology. Healthy fishes are selected and randomly divided into 5 groups, it is carried out in the temperature control single cycle breeding system. During the test, the fishes are fed fully. At the end of the test, the weight and length of the fishes are measured. The effects of antimicrobial patricides on growth performance and immune-related enzyme activities of carcasses are studied. The results show that there is dose relationship between the amount of antimicrobial peptides in the feed and the weight gain rate, the specific growth rate and the feed coefficient. With the increase of the amount of antimicrobial peptides, the activity of the acid phosphatase and the lysozyme in the serum of the carp are increased firstly and then decreased with the increase of the dosage. It can be concluded that antibacterial peptides have the antibacterial activity and it can promote animal growth.