肉兔耐热性评价指标的初步研究
发布时间：2019-02-26 08:16
【摘要】：试验旨在研究急性热应激初期血清生化指标及与耐热性能的关系,为筛选肉兔耐热性评价指标提供理论依据。选择同期出生、体重相近的健康4月龄新西兰兔55只,随机分配在2个人工温控室内,其中适温对照组环境温度为(21±1)℃(n=25),高温热应激试验组为(38±1)℃(n=30)。准确记录试验组中每只兔的耐热时间,并在热应激起始0 h(HS0)和热应激8 h(HS8)时采集所有兔只的血液,测定并分析血清生化指标及其变化(△HS)情况,并与耐热时间进行相关性分析。结果表明:热应激对血清葡萄糖(GLU)、甘油三酯(TG)、胆固醇(TC)、总蛋白(TP)、白蛋白(ALB)、球蛋白(GLB)、谷丙转氨酶(ALT)、谷草转氨酶(AST)、AST/ALT、碱性磷酸酶(ALP)、磷酸肌酸激酶(CPK)及其变化值均无显著影响(P0.05),极显著影响血清超氧化物歧化酶(SOD)及其变化值(P0.01)。相关分析表明,HS0时的GLB及ALP与耐热时间分别呈显著负相关(r=-0.362,P0.05)和显著正相关(r=0.376,P0.05),SOD的△HS与耐热时间呈显著正相关(r=0.396,P0.05),而其他指标或其变化值与耐热时间的相关性不显著(P0.05)。本研究推测,GLB、ALP和SOD可能是重要的肉兔耐热性评价候选指标。
[Abstract]:The aim of the experiment was to study the relationship between serum biochemical indexes and heat resistance in the early stage of acute heat stress, and to provide a theoretical basis for screening evaluation indexes of heat tolerance in meat rabbits. Fifty-five 4-month-old healthy New Zealand rabbits born in the same period were randomly assigned to two artificial temperature control rooms. The ambient temperature of the control group was (21 卤1) 鈩，
本文编号：2430598
[Abstract]:The aim of the experiment was to study the relationship between serum biochemical indexes and heat resistance in the early stage of acute heat stress, and to provide a theoretical basis for screening evaluation indexes of heat tolerance in meat rabbits. Fifty-five 4-month-old healthy New Zealand rabbits born in the same period were randomly assigned to two artificial temperature control rooms. The ambient temperature of the control group was (21 卤1) 鈩，
本文编号：2430598
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