蝉花菌丝体和植物提取物对雁荡麻鸡生产性能和肌肉品质的影响

为研究2种不同植物成分对雁荡麻鸡生长性能和肌肉品质的影响,选取90日龄体况良好、体重相近的雁荡麻鸡青脚黑麻羽系肉鸡90只,随机分为3组,每组3个重复,A组饲喂基础日粮,B组在基础日粮中添加2％蝉花菌丝体,C组在基础日粮中添加250 mg/kg植物提取物.试验期40d.对期末体重、平均日增重等生长性能和血清IgA、IgG...

Effects of Mycelium Culture of Isaria cicadae and Plant Extracts on Growth Performance and Muscle Quality of Yandang Chicken

To study the effects of two different plant components on growth performance and muscle quality ofYandang chicken,90 healthy and similar weight Yandang chickens were selected and randomly divided into threegroups with 3 replicates in each group.Group A was fed with basal diet,group B was fed with 2%mycelium cultureof Isaria cicadae in basal diet,and group C was fed with 250 mg/kg plant extract in basal diet.The experiment lasted for40 days.The final body weight,average daily gain,serum Ig A,Ig G,antibody against Newcastle disease virus,muscleshear force,meat color and contents of crude protein,crude fat and amino acids were detected.Results showed:(1)Theaverage daily gain of group B and group C were 16.71%and 10.24%higher than that of group A;The antibody levelagainst Newcastle disease virus,Ig A and Ig G was not significantly increased(P>0.05);(2)The electrical conductivity ofgroup B and group C was significantly lower than that of group A(P<0.05);There was no significant difference in meatcolor values,shear strength,p H(P>0.05);(3)Crude protein,cystine,leucine and histidine in group B were significantlyhigher than those in group A(P<0.05);Valine and methionine in group C were significantly higher than those ingroup A(P<0.05);And methionine in group B and C was significantly higher than that in group A(P<0.05).In thenonessential amino acids,aspartic acid,glutamic acid,proline,tyrosine and arginine in group B were significantly higherthan those in group A(P<0.05);Glycine in group C was significantly higher than that in group A(P<0.05);Total aminoacids in group B and C were significantly higher than those in group A(P<0.05).It′s suggested that the addition ofmycelium culture of Isaria cicadae or plant extracts was beneficial to increase the feed return,and the conductivityof muscle decreased significantly,the total amino acid content and flavor amino acid content of muscle increasedsignificantly,which could significantly improve the meat quality of chicken.