摘要
【目的】探讨中草药抗热应激剂对夏季蛋鸡生产性能、蛋品质及血液生化指标的影响。【方法】选取480只310日龄健康、体质量和生产性能相近的罗曼褐蛋鸡,随机分为4组,每组120只,每组设4个重复,每重复30只,I组为对照组(CK),饲喂基础日粮;Ⅱ、Ⅲ、Ⅳ组为试验组,分别在基础日粮中添加4,8,12g/kg自制中草药抗热应激剂,分析其对蛋鸡生产性能、蛋品质及血液生化指标的影响。【结果】夏季在日粮中添加中草药抗热应激剂,可显著提高蛋鸡的采食量、产蛋率、平均蛋质量,降低料蛋比、破蛋率和死淘率;改善蛋壳厚度、蛋壳强度及蛋黄颜色,且差异显著(P<0.05),但对蛋形指数、蛋体积质量、哈氏单位的影响不显著;可明显提高血清中总蛋白、白蛋白质量浓度和血糖、血脂、钙、钾、三碘甲腺原氨酸、甲状腺素的浓度,降低血清中皮质醇质量浓度和谷草转氨酶、谷丙转氨酶、乳酸脱氢酶、肌酸磷酸激酶的活性,提高碱性磷酸酶的活性。【结论】夏季在蛋鸡日粮中添加中草药抗热应激剂,可以提高蛋鸡的生产性能、蛋品质,降低死淘率,改善蛋鸡血液生化指标。
【Objective】 The research was conducted to study the effects of Chinese herbal medicine additives of anti-heat stress on production performance,egg quality and blood biochemical indexes of laying hens in summer.【Method】 480 Roman hens of 310-day-old were randomly divided into 4 groups（120 hens in each group,4 replicates with 30 layers in each）.Group I was fed the basal diet as control（CK）.The experiment group Ⅱ,Ⅲ,Ⅳ were fed 4,8,12 g/kg Chinese herbal medicine additives of anti-heat stress on the basal diet,respectively.At the end of experiment,production performance,egg quality,blood biochemical indexes were measured.【Result】 Chinese herbal medicine additives of anti-heat stress increased feed intake,laying rate and average egg weight,decreased feed/egg ratio,egg broken ratio,mortality,increased eggshell thickness,eggshell strength,yolk color（P〈0.05）.But egg shape index,egg specific density,haugh unit were not significantly affected.The serum TP,ALB,GLU,TG,Ca2＋,K＋,T3 and T4 were increased,concentration of serum cortisol and activity of AST,ALT,LDH,CK decreased,activity of ALP increased.【Conclusion】 Chinese herbal medicine additives of anti-heat stress could increase laying performance,egg quality,decrease mortality,and improve blood biochemical indexes in layers.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2011年第9期48-52,共5页
Journal of Northwest A&F University(Natural Science Edition)
基金
山东省临沂市科技攻关计划项目(736015)
关键词
中草药
热应激
蛋鸡
生产性能
血液生化指标
Chinese herbal medicine
heat stress
laying hens
laying performance
blood biochemical indexes
作者简介
李振（1971-），男，山东临沂人，副教授，博士，主要从事动物药理学与毒理学研究。Email：lizhen8217@126．com
