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  • Title: Effect of methallibure on gestation in the guppy, Poecilia reticulata.
    Author: Lam TJ, Pavri C, Ng KL.
    Journal: Gen Comp Endocrinol; 1985 Nov; 60(2):315-23. PubMed ID: 3934030.
    Abstract:
    Methallibure treatment (1 mg fed on alternate days to a female and a male kept in 1 liter of 25% seawater) started from 1 or 7 days postpartum (early gestation) inhibited gestation in the wild guppy, Poecilia reticulata. A few of the fish treated from 7 days postpartum (2/9) did give birth, but the young either were dead at birth or did not survive long after birth. When treatment was started 2 weeks postpartum (midgestation), gestation was not inhibited, but 25% of the young were born dead while the rest showed retardation of postnatal growth. Several possible interpretations of the results are discussed.
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