Ginkgo Defensins Affect Growth Performance and Immune Parameters of Piglets

This experiment was conducted to study the effects of dietary ginkgo defensins supplementation on growth performance and immune parameters of weaner piglets,and aimed to provide safety,environmental,efficient green feed additive for feed production.A total of 120 weaner piglets(Duroc×Landrace×Yorkshire) with average weight about 7 kg were randomly divided into a control group and a experimental group,and each group contained 5 replicates and 12 piglets in each replicate.Piglets in the control group were fed a basal diet,and the piglets in the experimental group were fed the basal diet supplemented with 0.2% ginkgo defensins.The experiment lasted for 21 days.The results showed as follows: compared with the control group,the final weight in the experimental group was increased by 8.92%(P0.05),the diarrhea rate was significantly decreased(P0.01),and feed to gain ratio was decreased by 7.27%(P0.05).The contents of serum immunoglobulin G,immunoglobulin M,and immunoglobulin A in the experimental group were increased by 13.03%(P0.05),12.27%(P0.05),and 7.89%(P0.05),respectively;the contents of serum albumin and total protein were increased by 19.97%(P0.05),14.97%(P0.05),respectively.The blood T-lymphocyte transformation rate in the experimental group was increased by 8.25%(P0.05),and interleukin 2 content was increased by 15.25%(P0.01).In conclusion,ginkgo defensins can improve growth performance and immune parameters,and reduce the diarrhea rate.