Study on the effect of perilla seed extract in broiler diet

Xie Jun and pan cunxia, School of animal science and technology, Southwest University, added different levels of perilla seed extract to the basic diet to observe its effect on the performance of broilers The experiment was divided into three groups: group I was the basic diet group, group II was the basic diet + 50 mg / kg aureomycin, and group III was the basic diet + 150 mg / kg perilla seed extract The test was conducted from July 20 to August 31, 2009 270 healthy 1-day-old Avian broilers were randomly divided into 3 groups, with 3 replicates in each group, 30 chickens in each replicate Results compared with group I, the daily gain of group II and group III increased by 9.06% and 8.42%, and the feed to weight ratio decreased by 14.96% and 12.82%, respectively The survival rate of group I was the lowest, only 90.00%, and that of group III was the highest, 96.67% Compared with group I, group II and group III reduced 15.00% and 11.86% respectively in the cost of weight-added feed There was no significant difference between group II and group III The results showed that adding perilla seed extract to basic diet could significantly reduce the feed cost of weight gain, and the scale benefit was very considerable Effects of Perilla Seed Extract on immune function of broilers spleen index, thymus index, bursa index of Fabricius were significantly higher in group Ⅱ and group Ⅲ than in group Ⅰ, which indicated that adding perilla seed extract to basic diet could significantly improve immune organ index of broilers at all stages The effect of Perilla Seed Extract on the immune indexes of broilers showed that adding perilla seed extract to the basic diet could significantly improve the HI antibody titer of broilers Compared with group I, the percentage of E-rosette formation and lymphocyte transformation rate of group II and group III were significantly increased, which indicated that adding perilla seed extract to basic diet could significantly improve the immune function of peripheral blood lymphocytes of broilers Compared with group I, the IgG content of group II and group III increased by 1.00% and 3.00%, respectively The results showed that adding perilla seed extract to basic diet could significantly improve the serum IgG content of broilers Conclusion The results showed that: perilla seed extract can improve the daily weight gain, reduce the feed to weight ratio, and improve the survival rate of broilers Adding perilla seed extract can also reduce the feed cost of weight gain; Perilla seed extract can promote the development of immune organs, improve the immune function of the body, and enhance the humoral and cellular immune functions of broilers.