Alexander, D.J. 2003. Newcastle disease, other avian paramyxoviruses, and pneumovirus infection. In: Saif, Y.M, et al., (eds). Diseases of Poultry. Iowa State University Press, Ames, U.S.A. pp 64- 87.
Al-Garib, S.O., Gielkens, A.L.J. and Koch, G. 2003. Review of Newcastle disease virus with particular references to immunity and vaccination. World Poultry Sci. J. 59: 185-197. [OpenAIRE]
Allan, W.H. and Gough, R.E. 1974. A standard haemagglutination inhibition test for Newcastle Disease (1) A comparison of macro and micro methods. Veterinary Record 95: 120-123. [OpenAIRE]
Ayo, J.O., Oladele, S.B. and Fayoni, A. 1996. Effect of heat stress on livestock production. A review. Nigerian Veterinary J. special edition 1(1): 58-68.
Bourre, J.M. and Galea, I.F. 2006. An important source of Omega 3 fatty acids, vitamin D and E, Carotenoids, Iodine, Selenium: a new natural multi enriched egg. J. Nutrition Health and Ageing 10: 371-376.
Dalloul, R.A.., Lillehoj, H.S., Shellem, T.A. and Doerr, J.A. 2003. Intestinal immunomodulation by vitamin A deficiency and lactobacillus-based probiotics in Eimeria acervulina-infected broiler chickens. Avian Diseases. 47(4): 1313-1320. [OpenAIRE]
Google earth, 2015. www.googleearth.com Kammon, A.M., Brar, R.S., Banga, H.S. and Sodhi, S. 2012. Ameliorating effects of vitamin E and selenium on immunological alterations induced by imidacloprid chronic toxicity in chickens. J. Environ. and Analytical Toxicology S4:007
National Research Council (NRC). 1994. Nutrient requirements of Poultry, National Academy Press, Washington, DC.
Ogbamgba, K.O., Omiete, A.J. and Wekhe, S.N. 2007. The comparative effects of the administration of vitamins A, E and C on the growth of broilers in the tropics. Tropical J. Animal Sci. 10(1 -2): 90-97.
Onu, P.N. 2009. Growth performance, carcass characteristics and economic benefits of supplemental ascorbic acid on broiler starters exposed to heat stress. ARPN J. Agricultural and Biological Sci. 4: 5.
Oruseibio, S.M., and Alu, E.U. 2006. Responses of broiler birds to supplementation of ascorbic acid. Nigeria Poultry Sci. J. 4: 12-15.
Rajput, A.B., Kolte, B.R., Shisodiya1, J.M., Chandankhedel, J.M. and Chahande, J.M. 2009. Effect of vitamin A, vitamin C, vitamin E and levamisole on performance of broilers. Veterinary World 2(6): 225-227. [OpenAIRE]
Rama-Rao, S.V., Raju, M.V.L.N. and Nagalakshmi, D. 2004. Nutritional modulation to enhance immunity in chickens. Poultry International. Watt Publishing Co. Pp 24-29.
Sabah, E.M.K., Mohammed, A.M.M. and Abdel, G.S.M. 2008. Effect of feed restriction and ascorbic acid supplementation on performance of broiler chicks reared under heat stress. Research J. Anim. and Vet. Sci. 3: 1-8.
Safarizadeh, A. and Zakeri, A. 2013. The effect of vitamin A and complex of vitamin E and selenium on growth factors and humoral immunity in broiler chickens. European J. Experimental Biology 3(4): 99-102.