The chick embryos of Namakkal chicken variety was collected sequentially from day 1 to day 20 and gross morphological developmental features were studied. On day one of development, head fold and neural fold were observed. From second to fifth day, gradual development of optic vesicle, limb, wing buds, circulation and body flexures were viewed. From day 6 to day 12, clear demarcation of toes, development of scales on the legs, feather germ development, formation of eyelid and its closure were observed. From 13th day to 20th day, growth of various developed body parts was noticed. |
