摘要
为探究不同季节室内、外饲养方式对黑脚麻鸡生长性能和免疫功能的影响,本试验在冬季、夏季各选用180只35日龄的黑脚麻鸡雌雏,随机分成2组,每组3个重复,每个重复30只,分别进行室外放养和室内平养。在49、63、77、91日龄分别对黑脚麻鸡生长性能、免疫器官指数和血清抗体效价进行测定。结果显示,1无论是冬季还是夏季,试验期室内平养的黑脚麻鸡体重均大于室外放养,冬季两试验组均差异显著(P<0.05),夏季仅在77日龄时差异显著(P<0.05),其余日龄差异均不显著(P>0.05);2夏季室外放养组黑脚麻鸡平均日增重(ADG)高于冬季室外放养组,料重比(F/G)显著低于冬季室外放养组(P<0.05),而室内平养组平均日采食量(ADFI)和ADG在两个季节间无显著差异(P>0.05);3在免疫功能上,冬季室内平养黑脚麻鸡免疫器官指数和新城疫(ND)抗体效价均大于室外放养组,而夏季室外放养组部分免疫器官指数和禽流感H5亚型(AI(H5))、ND抗体效价高于室内平养组;冬季两种抗体效价均高于夏季。综上所述,气候和季节是影响放养黑脚麻鸡生长性能及免疫功能的主要因素。
This experiment was conducted to study the effect of different rearing conditions of indoor and outdoor in winter and summer on growth performance and immune function of Heijiao MA chicken.In the winter and summer,180 Heijiao MA chicken with the age of 35-day-old were chosen and randomly divided into two groups with three replicates per group and 30 chickens per replicate.The Heijiao MA chicken were reared at outdoor and indoor,respectively,and at 49,63,77,91 days the immune organ indexes,serum antibody titers and growth performance were measured.The results showed that：①Whether it was winter or summer,the body weight of Heijiao MA chicken rearing at indoor were higher than that of outdoor,and the difference was significant at experimental stages in winter （P＜0.05）.There was significant difference only at 77 days old of Heijiao MA chicken in summer （P＜0.05）,the rest were not significant （P＞0.05）;②The ADG of outdoor group in summer was higher than that in winter,while the F/G of outdoor group in summer were significantly lower than that in winter （P＜0.05）.The ADFI and ADG of indoor group were not significantly different between winter and summer （P ＞ 0.05）.③On immune function,immune organ indexes and ND antibody titer of Heijiao MA chicken of indoor group in winter were higher than outdoor group,while part of immune organ indexes,AI （H5） and ND antibody titers of outdoor group in summer were higher than that of indoor group;And ND and AI （H5） antibody titers in winter were higher than summer.In conclusion,The climate and season were major factors to influence the growth performance and immune function of Heijiao MA chicken.
出处
《中国畜牧兽医》
CAS
北大核心
2016年第5期1208-1214,共7页
China Animal Husbandry & Veterinary Medicine
基金
贵州省科技厅农业攻关项目[黔科合NZ(2013)3022号]
关键词
黑脚麻鸡
季节
室内、外饲养
生长性能
免疫功能
Heijiao MA chicken
season
indoor and outdoor rearing
growth performance
immune function
