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  • Title: [Attempts at biotechnical induction of puberty in female young pigs. 1. Estrus and ovulation induction with Suigonan (Vemie) or FSH plus HCG mixtures in animals at the age of approximately 200 days].
    Author: Bergfeld J, Ehlert G.
    Journal: Arch Exp Veterinarmed; 1977; 31(3):369-74. PubMed ID: 562651.
    Abstract:
    64 prepuberal gilts in 4 groups were treated with 400 PMS + 200 HCG (Suigonan - Vemie) (I), 100 FSH + 100 HCG) (II), 200 FSH + 200 HCG (III) ("international units") or served as untreated controls (IV). One halve of the groups laparotomized at the 12th day p.i. had ovulated 100, 25, 75 and 12,5% resp., the other halve slaughtered at the 36th day p.i. had ovulated to 83, 43, 88 and 50% resp. Sexual cycle was registered in 50, 29, 43 and 12.5% of the animals. Zystic ovaries (greater than or equal to 11 mm) developed only in a few cases in I and III.
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