Vol. 11, Special Issue 11 (2022)

Author(s):
Dr. Mansi Shukla, Dr. SK Karmore, Dr. Rajesh Ranjan and Dr. Shailendra Singh

Abstract:
Bursa of fabricius, in Kadaknath and Narmada Nidhi breeds of birds under study, was found to be an unpaired blind pouch like organ, attached to the dorsal wall of the proctodeum of the cloaca by a small stalk. Colour and number of plicae in Bursa of fabricius varied amongst the birds of both the breeds. On an average, the gross biometrical values for weight, volume, diameter and thickness of wall of Bursa of fabricius in Narmada Nidhi birds were found to be higher in each age group under study. Regression of the organ was seen to start early in Narmada Nidhi birds at the age of 16-18 weeks onwards whereas in Kadaknath birds it started at about 24-28 week onwards. The gross biometrical values indicated significant (p<0.05) variation in each age group amongst the two breeds which might be due to breed difference.