品种和季节对绒山羊褪黑素等四种激素分泌水平的影响  

Effects of varieties and seasons on the secretion levels of four hormones including melatonin and other hormones in cashmere goats

作　　者：谷振慧 刘月琴[1] 张英杰[1] 王志刚[1] 郑庆丰 李振林 

机构地区：[1]河北农业大学动物科技学院,河北保定071000 [2]秦皇岛市畜牧站,河北秦皇岛066000 [3]青龙县畜牧局,河北青龙066500

出　　处：《黑龙江畜牧兽医》2016年第5期122-124,共3页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家现代农业产业技术体系项目(CARS-40-21)

摘　　要：为了研究不同绒山羊品种间褪黑素、催乳素、甲状腺素、生长激素与绒山羊绒毛生长的关系,试验采用放射性免疫法测定了生绒旺盛期及退行期辽宁绒山羊和承德黑山羊血清激素浓度。结果表明:辽宁绒山羊和承德绒山羊褪黑素浓度在生绒旺盛期均极显著高于退行期(P<0.01),辽宁绒山羊生绒旺盛期褪黑素浓度显著低于承德黑山羊(P<0.05),而退行期品种间差异不显著(P>0.05);辽宁绒山羊和承德黑山羊生绒旺盛期催乳素浓度极显著低于退行期(P<0.01),辽宁绒山羊生绒旺盛期催乳素浓度显著低于承德黑山羊(P<0.05),而退行期品种间差异不显著(P>0.05);辽宁绒山羊和承德黑山羊甲状腺素浓度在不同品种及不同生绒时期均差异不显著(P>0.05);在生绒旺盛期辽宁绒山羊生长激素浓度与退行期差异不显著(P>0.05),而承德黑山羊在两个时期间差异极显著(P<0.01),在生绒旺盛期辽宁绒山羊和承德黑山羊生长激素浓度差异显著(P<0.05),在退行期时则差异不显著(P>0.05)。说明褪黑素、催乳素、生长激素的分泌水平与品种、生绒期有关,可能进一步影响绒山羊的产绒量。To study the relationship of melatonin, prolactin, thyroxine, growth hormone and growth hormone with cashmere growth between different varieties of cashmere goats, serum hormone concentrations of Liaoning cashmere goats and Chengde black goats during the anagen and catagen phases were determined by radioactive immunoassay. The results showed that the concentrations of melatonin in Liaoning cashmere goats and Chengde cashmere black goats at the anagen phase were extremely significantly higher （ P 〈 0.01 ） than those at the catagen phase, and the concentration of melatonin in Liaoning cashmere goats was significantly lower（ P 〈 0.05 ）than that in Chengde black goats at the anagen phase, while there was no significant difference （ P 〉 0. 05 ） between two varieties of goats at the catagen phase ; the concentrations of prelactin in Liaoning cashmere goats and Chengde cashmere black goats at the anagen phase were extremely significantly lower （ P 〈 0.01 ） than those at the catagen phase, and the concentration of prolactin in Liaoning cashmere goats was significantly lower（ P 〈 0.05 ） than that in Chengde black goats at the anagen phase, while there was no significant difference （ P 〉 0.05 ） between two varieties of goats at the catagen phase ; there were no significant differences （ P 〉 0. 05 ） in the concentrations of thyroxine for different varieties and cashmere growth phases between Liaoning cash- mere goats and Chengde cashmere black goats; there was no significant difference in the concentration of growth hormone in Liaoning cashmere goats between the anagen phase and catagen phase, while the difference was extremely significant （P 〈 0.01 ） in Chengde black goats between the two phases. The concentrations of growth hormone in Liaoning cashmere goats and Chengde cashmere black goats were significant （ P 〈 0.05 ） at the anagen phase, while there was no significant difference （ P 〉 0.05 ） between two varieties of goats at the catagen phase. The resuhs indic

关 键 词：褪黑素 催乳素 甲状腺素 生长激素 放射性免疫 辽宁绒山羊 承德黑山羊 绒毛生长 

分 类 号：S827[农业科学—畜牧学] S814.1[农业科学—畜牧兽医]