Abstract
The non-invasive method of determining the sex of chicks after hatching based on the DNA isolated from capillary vessels of allantois of the egg-shell membranes was demonstrated on four crane species (Gruinae, Aves), which were bred in the Crane Breeding Centre of the Oka Nature Reserve in 2009-2012. Using the EE0.6 molecular marker of sex, the gender of 26 Siberian (Grus leucogeranus), 15 Red-crowned (G. japonensis), 4 Common (G. grus) and 1 Demoiselle (Anthropoides virgo) crane chicks was identified. This method can be recommended for determining the sex of chicks and the ratio of sexes in cranes that reproduce both in captivity and natural populations.
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