Growth and Feather Development of Alexandrine Parakeets, Psittacula eupatria (Linnaeus, 1766), In Captive Condition


Authors : Thin Thin Khaing, Sandar Win, Chaw Su Shwe

Volume/Issue : Volume 4 - 2019, Issue 7 - July

Google Scholar : https://goo.gl/DF9R4u

Scribd : https://bit.ly/2ZQtww2

Growth and Feather development of Alexandrine Parakeets, Psittacula eupatria were observed in captive condition. Twelve specimens of hatchlings were obtained from five nests in the cavities of trees from the Shwesettaw Wildlife area lies on the northern edge of the central plains of Myanmar. Chicks were carried to the Laboratory of Zoology Department, Magway University and growth parameters such as weight, total length, culmen, gape and tarsus were measured weekly. Development of feather tracts was also observed. In one week old, their eyes were closed and naked.In second weeks old, eyes start to open and alar pins start to come out but feathers on the head, dorsal, ventral, femoral and caudal were not found. In 3 rd weeks old, the babies down feathers come in more at dorsal, femoral and caudal tract. Wings feathers such as primary, secondary and tertiary were begin distinct. While the feathers not found on the head and ventral. In 4 th weeks old, feathers distinct on the head and ventral. On six weeks old, green contour feathers covered almost the whole of the body.

Keywords : Growth, Nestling, Feather Development, Weight, Alexandrine Parakeet.

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