ISSN:
1365-2109
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Wild female catfish Silurus asotus (Linnaeus, 1758) were injected with domperidone (DOM) alone, [d-Ala6, Pro9 Net]-luteinizing hormone-releasing hormone (LHRH-A) alone once or twice, LHRH-A plus DOM once or twice simultaneously at 6-h intervals, LHRH-A plus carp pituitary extract (CPE) twice simultaneously at 6-h intervals and LHRH-A plus human chorionic gonadotropin (HCG) twice simultaneously 6 h apart respectively. The results indicated that injection of LHRH-A at a dosage of 0.01–0.02 μg g−1 body weight (BWt) alone induced a low but significant increase in serum gonadotropin (GtH) (P〈0.05) and resulted in a very low ovulation rate, while DOM at a dosage of 5 μg g−1 BWt alone did not induce an increase in the serum GtH levels and ovulation; in contrast, LHRH-A at a dosage of 0.01 μg g−1 BWt plus DOM at a dosage of 5 μg g−1 BWt (termed the Linpe technique) increased the serum GtH (P〈0.05) significantly and induced an ovulatory rate of 100%, while LHRH-A plus CPE or HCG resulted in an increase in the serum GtH (P〈0.05) and high ovulatory rate, although the latency period was longer when fish were given LHRH-A plus HCG or CPE.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2109.2004.01017.x
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