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  • Title: In vitro effect of mammalian pituitary hormones on germinal vesicle breakdown in oocytes of major carps, Labeo rohita, Cirrhinus mrigala, Catla catla and Cyprinus carpio.
    Author: Haider S, Inbaraj RM.
    Journal: Indian J Exp Biol; 1989 Jul; 27(7):653-5. PubMed ID: 2632393.
    Abstract:
    Among all the mammalian pituitary hormones, luteinizing hormone (LH) was the most potent in vitro inducer of oocyte maturation in L. rohita, C. mrigala, C. catla and C. carpio. It induced significant germinal vesicle breakdown (GVBD) at concentrations of 10, 1, 0.1 and 0.01 micrograms/ml. At the highest concentration used, LH induced 77.9 +/- 5.9, 73.8 +/- 4.6, 50.3 +/- 2.8 and 40.8 +/- 1.4% GVBD in oocytes of L. rohita, C. mrigala, C. catla and C. carpio, respectively. Among other hormones, follicle stimulating hormone (FSH) induced only a marginally significant GVBD (13.2 +/- 0.8%) in the oocytes of C. carpio, but not in other three species. Thyroid stimulating hormone (TSH), growth hormone (GH) and prolactin (PRL) had no effect on GVBD.
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