不同繁殖力山羊褪黑素分泌规律的比较研究  

Secretory Characteristics of Melatonin in Different Seasons of Two Breeds of Goat with Low and High Fecundity

作　　者：侯衍猛[1] 葛仕豪[1,2] 魏军强[1,3] 王树迎[1] 刘晓东[1] 韩小康[1] 

机构地区：[1]山东农业大学动物科技学院,山东泰安271018 [2]菏泽学院制药工程系,山东菏泽274015 [3]潍坊市临朐县畜牧局,山东潍坊262600

出　　处：《西南农业学报》2014年第2期870-872,共3页Southwest China Journal of Agricultural Sciences

基　　金：山东省科技攻关项目(2008GG30008018);科技部科技成果转化项目(2009GB2C600213)

摘　　要：比较高繁殖力的济宁青山羊和低繁殖力的沂蒙黑山羊不同季节血浆中褪黑素(melatonin,MT)的分泌变化规律,分析MT与山羊繁殖力之间的关系。采用放射免疫分析法(RIA)测定血浆MT浓度,结果表明:MT昼夜分泌峰值出现在00:00时,峰值以夏至为最高(P<0.05),济宁青山羊达到极显著水平(P<0.01);两羊种春分和秋分之间的峰值差异均不明显。除冬至外的其它三个季节济宁青山羊在各个采样点的激素浓度均高于沂蒙黑山羊,冬至结果与之相反。夜间褪黑素的平均含量济宁青山羊均极显著高于沂蒙黑山羊(P<0.01),但冬至时结果亦相反。The concentrations of melatonin （MT） in blood plasma were measured by radioimmunoassay during the annual cycle of two local goat breeds in Shandong with low （Yimeng Black goat） and high （Jining Gray goat） fecundity.The results showed that the secretion of the MT reached the maximum at midnight,Melatonin contents associated with seasonal changes.At night,the average concentration of melatonin in the summer solstice was the highest than other seasons （P ＜ 0.05）,Jining Gray goat reached a highly significant level（P ＜ 0.01） ; no difference between the vernal equinox and the autumn equinox （P ＞ 0.05） was observed.Different with the winter solstice,Jining Grey goats MT concentrations were higher than Yimeng black goat in the other three seasons at each sampling point,furthermore,the same results appear in theaverage levels at night.

关 键 词：济宁青山羊 沂蒙黑山羊 季节 褪黑素 

分 类 号：S858.27[农业科学—临床兽医学]