Studies on induction of early concurrent maturation of oviduct in domestic fowl
K.V.H. SASTRY, J. MOHAN, J.S. TYAGI AND M. SIRAJUDEEN
Division of Physiology and Reproduction
Central Avian Research Institute
Izatnagar-243 122, Uttar Pradesh
In domestic fowl ovary mature early than oviduct that results in delayed onset of egg production though inspite of ovulation. Therefore an attempt has been made in this study to synchronize the development of the oviduct along with the ovary to increase the egg production. About hundred female white leghorn chicks (day old) were reared under standard managemental condition with feed and water ad libitum. At the age of 10 weeks the birds were randomly divided into 2 groups with 36 birds in each group. The first group served as control while the other group was subjected to hormonal treatment. At the proper age, the birds of second group were administered with progesterone plus estrogen analogues along with the feed. The egg production and egg weight were recorded. The first egg was appeared on 105th day of age in the second group. The age at sexual maturity of the birds from second group was found significantly lower than the control group. This group reached peak of its production very early by the end of 25th week. The birds of second laid more than 10 extra eggs per bird over their counterparts in the control group. The average egg weights of both groups followed the similar pattern.