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Abtract The experiment was conducted to study the deve lopment of Endocrine Glands in quail embryos. The eggs of Japanese Quail are incubated in BOD incubator at 35oC and 60% Relative Humidity. The embryos were cut out, fixed, paraffin sectioned and stained with Heamatoxylene-Eosin. The result shows that the formation of ovaries starts from 4th day of incubation. It matures till 17th day of incubation. The testis starts developing by showing the epididymal linings on 5th day. The adrenal gland starts developing from 4th day as the triangular portion above kidney can be differentiated on 6th day. Thyroid gland appears as out growth from 4th day but it is visible on 8th day of incubation. These results established the basic groundwork for the research of the development of other endocrine glands of quail as well as other poultry.

EMBRYONIC DEVELOPMENT OF ENDOCRINE GLANDS IN JAPANESE QUAIL, COTURNIX COTURNIX JAPONICA