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7059398 
Journal Article 
STUDY ON THE EFFECTS OF ESTRADIOL-17-BETA, ESTRONE, CATECHOL ESTROGENS, [D-ALA(6)]-LUTEINIZING HORMONE-RELEASING HORMONE AND HUMAN CHORIONIC-GONADOTROPIN ON SERUM LEVELS OF LIPIDS AND VITELLOGENIN IN THE IMMATURE DUCKLING (ANAS-PLATYRHYNCHOS) 
Ng, TB; Ooi, VEC; , 
1993 
Yes 
Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology
ISSN: 1095-6433
EISSN: 1531-4332 
ELSEVIER SCIENCE INC 
NEW YORK 
57-60 
WOS:A1993LV62700010 
1. The effects of administration of estradiol-17beta (E2), estrone (E1), catechol estrogens, [D-Ala6]-luteinizing hormone releasing hormone (LHRH) and human chorionic gonadotropin (HCG) on serum levels of vitellogenin and lipids were examined in immature ducklings.2. E2 brought about an elevation in serum levels of total lipid, triglyceride, cholesterol and vitellogenin.3. Treatment with both LHRH and E2 resulted in an increase in serum levels or total lipid, triglyceride, cholesterol and vitellogenin.4. Treatment with LHRH alone, HCG, E1 or catechol estrogen failed to exert any effect on serum lipid or vitellogenin level.5. The results indicate that, of the various hormones examined including estrogens, LHRH and HCG, only E2 was able to affect serum lipid and vitellogenin concentrations in the duckling.