Studies of Reproduction in Ducks
1962; Elsevier BV; Volume: 41; Issue: 4 Linguagem: Inglês
10.3382/ps.0411123
ISSN1525-3171
Autores Tópico(s)Ecology and Vegetation Dynamics Studies
ResumoTHE DURATION of fertility in domestic birds of the order Galliformes has been the subject of much experimentation, but relatively few studies are known for those of the order Anseriformes. Using the latter the maximum duration following artificial insemination was found to be 16 days in Pilgrim geese (Johnson, 1954) and 14 days in Embden geese (Kinney and Burger, 1960). A maximum duration of fertility of 13 days was recorded in the Philippines by Fronda et al. (1940) for native ducks and by Tolentino (1948) for Muscovies. Elder and Weller (1954) obtained fertile eggs from wild Mallards 17 days after isolation of females. Watanabe and Sugimori (1957), using artificial insemination, found a maximum duration of 12 days in the Japanese Ōsaka duck. Subsequently Watanabe (1959), again using artificial insemination, found the statistic to be 7 days for Ōsaka females receiving semen from either Ōsaka or Muscovy drakes. Landau and Vančíková …
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