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  • Title: Superovulation of Japanese black heifers treated with FSH-P and FSH-R.
    Author: Yamamoto M, Ooe M, Fujii C, Suzuki T.
    Journal: J Vet Med Sci; 1993 Feb; 55(1):133-4. PubMed ID: 8461408.
    Abstract:
    The effects on superovulation in beef heifers of two kinds of porcine FSH preparations with different LH content, FSH-P and FSH-R, were compared. Forty-two heifers of the Japanese Black Breed received a total dose of 28AU of FSH-P containing 6.5% LH or FSH-R containing 0.58% LH intramuscularly, in a descending manner for four days. The mean numbers (+/- SD) of obtained ova/embryos and transferable embryos were 4.9 +/- 2.3, 1.5 +/- 0.9 and 11.2 +/- 2.4, 4.8 +/- 1.4, respectively. FSH-R treatment yielded a significantly greater number of ova/embryos and transferable embryos than FSH-P treatment (P < 0.05).
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