投喂LHRH-A粗品对雌性金鲫促性腺激素分泌和卵巢发育的作用  

Effects of Coarse LHRH-A by Dietary Administration on Gonadotropin Secretion and Ovarian Development in Carassius auratus Red Variety

作　　者：谢嘉华[1] 刘晓春[1] 龙进[2] 林浩然[1] 

机构地区：[1]中山大学水生经济动物研究所∥广东省水生经济动物良种繁育重点实验室 [2]井冈山师范学院,江西吉安343009

出　　处：《中山大学学报（自然科学版）》2007年第1期91-94,99,共5页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(39970586);福建省教育厅科技计划资助项目(JA02250)

摘　　要：研究投喂不同剂量LHRH-A粗品对雌性金鲫GtH分泌和卵巢发育的作用。以LHRH-A粗品0.01 mg/g饲料和0.1 mg/g饲料的剂量投喂6周后,与对照组相比,金鲫血清的GtH水平显著升高;部分卵母细胞已发育至Ⅳ+++时相,GSI明显增长。这些结果表明将LHRH-A粗制品拌入饲料长期投喂金鲫后,能使血清GtH水平明显提高,进而促进性腺的发育成熟。Effects of oral administration of different doses of coarse LHRtt-A on GtH secretion and ovarian development are investigated in Carassius auratus red variety. After 6 weeks of feeding with coarse LHRH-A 0. 01mg/g. diet or LHRH-A 0. 1 mg/g. diet, the serum GtH levels in female Carassius auratus increase significantly compared with the control, gonadosomatic index （GSI） increase apparently, and some oocytes in the treated groups （LHRHA 0. 01mg/g. diet or LHRH-A 0.1mg/g, diet） are highly developed to late phase 4 while that in the control keep still in phase 3. These results indicate that long-term dietary administration of coarse LHRH-A can increase GtH levels in serum, and subsequently resulte in gonadal deveopment and maturation in Carassius auratus.

关 键 词：金鲫 促黄体素释放激素类似物(LHRH-A) 促性腺激素 卵巢发育 

分 类 号：S965.1[农业科学—水产养殖]