000			01610nam a2200205Ia 4500
005			20150921131845.0
008			150525s2002 xx 000 0 und d
041			_aeng
082			_a0738,T
100			_aShahan Azeem _96908
110			_cprof. Dr. Muhammad Akram Munir _96909
245			_aEffect Of Various Growth Promoting Antibiotics On The Immune And Digestive Systems Of Broiler Chickens
260			_c2002
502			_aThis project was designed to study the effects of growth promoting antibiotics on immune and digestive systems of broiler chickens. This study indicated that un-medicated un-vaccinated chickens had the higher body weights than the vaccinated un-medicated or medicated chickens. Flavomycin, Lincomycin and Zinc bacitracin did not adversely affect the mean weights of spleen, thymus and livers of experimental chickens. However, the use of lincomycin, adversely affected the weight of bursa of' Fabricius. Furthermore, the use of Flavoinycin, Lincomycin and Zinc bacitracin did not have any adverse effects on the development of antibody titers against NDV and AIV. The total viable microflora counts of different treatment groups were not different from each other. Evaluation of the economics of flocks at the end of the experiment indicated that un-medicated, un-vaccinated groups had higher profit returns and the Lincomycin medicated, vaccinated groups demonstrated lowest profit.
650			_aDepartment of Microbiology _94609
700			_aDr. Sameera Akhtar _96235
700			_aDr. Talat _94414
710			_aFaculty of Veterinary Sciences _94292
942			_cTH
999			_c2475 _d2475