The Reproductive Processes of Certain Mammals. Part IX. Growth and Reproduction in the Stoat (Mustela erminea)

摘要: As the result of investigations Marshall (1904), Robinson (1918), Hammond and (1930), Allanson (1932) others, we have an extensive knowledge reproductive cycle domestic ferret, but naturally, far less is known about wild Mustelidae in Great Britain. Jolly (1905), reviewing literature on Carnivores, comment variability this group particularly frequent recurrence oestrus certain animals (such as cat, some larger Carnivora Zoological Gardens), under conditions captivity or domestication. A further example found otter, which usually has one litter a year between October February (Millais, 1905). Cocks (1881) states that female otter absence male came heat almost every month. When was put with animal, mating took place July 17 August 12, second two young were born gestation having lasted 61 days. It remains uncertain whether should be attributed to captivity.