Almeida, A. M. and U. Zuber. 2010. The effect of naked neck genotype (NaNa), feeding and outdoor rearing of on growth and carcass characteristics of free range broilers in hot climate. Trop. Anim. Health Prod. 42:99-107.
Al Murrani, W. K., I. K. Al Raw and N. M. Roaf. 2002. Genetic resistance to salmonella typhimurium in two lines of chickens selected as resistant and sensitive on the basis of the heterophil/lymphocyte ratio. Br. Poult. Sci. 43:501-507.
Altan, O., A. Pabuccuoglu, A. Altan, S. Konyalioglu and H. Bayraktar. 2003. Effect of heat stress, lipid peroxidation and some stress parameters in broilers. Br. Poult. Sci. 44:545-550.
Altan, O., A. Altan, I. Oguz, A. Pabuccuoglu and S. Konyalioglu. 2000. Effects of heat stress on growth, some blood variables and lipid oxidation in broilers exposed to high temperatures at an early age. Br. Poult. Sci. 41:498-493.
Cahaner, A., N. Deeb and M. Gutman. 1993. Effects of the plumage-reducing naked neck (Na) gene on the performance of fast-growing broilers at normal and high ambient temperature. Poult. Sci. 72:767-775.
Cahaner, A., Y. Pinchosov, Y. Nir and Z. Litzan. 1995. Effects of dietary protein under high ambient temperature on body weight gain, breast meat yield and abdominal fat deposition of broilers stocking differing in growth rate and fatness. Poult. Sci. 74:968-975.
Cohen, G., D. Dembiec and J. Marcus. 1970. Measurement of catalase in tissue extract. Anal. Biochem. 34:30-38.
Davison, T. F., L. G. Rowel and H. K. Parmentier. 1983. Effects of dietary corticosterone on peripheral blood lymphocytes and granulocyte population in immature domestic fowl. Res. Vet. Sci. 34:236-239.
El Safty, S. A., U. M. Ali and M. M. Fathi. 2005. Immnological parameters and laying performance of naked neck and normally feathered genotypes of chicken under winter conditions of Egypt. Proc. 4th European Poult. Genet. Symp., Croatia, p. 18.
Fathi, M. M., A. H. El-Attar, U. M. Ali and A. Nazmi. 2008. Effect of the neck neck gene on carcass composition and immune competence in chicken. Br. Poult. Sci. 49:103-110.
Freeman, B. M. 1987. The stress syndrome. World's Poult. Sci. J. 43:15-19.
Galal, A. and M. M. Fathi. 2001. Improving carcass yield of chicken by introducing naked neck and frizzle genes under hot prevailing conditions. Egyptian Poult. Sci. 21:339-362.
Horst, P. 1987. Animal genetic resources and potential for resource development in the tropics with special reference to Malaysia. Mal. Appl. Biol. 16:13-22.
Inter Governmental Panel on Climate Change (IPCC). 2001. Working Group II. Impacts, adaptations and vulnerability. Available at www:grida.no/climate/ipcc_tar/wg2/005.html.
Lin, H., H. C. Jiao, J. Byse and E. Decuypre. 2006. Strategies for preventing heat stress in poultry. World's Poult. Sci. J. 62:71-86.
Lowry, O. H., N. J. Rosebrough, A. L. Farr and R. J. Randall. 1951. Protein measurement with the Folin-Phenol reagent. J. Biol. Chem. 193:265-275.
Macleod, M. G. and P. M. Hocking. 1993. Thermoregulation at high ambient temperatures in genetically fat lean broiler hens fed ad libitum or on controlled feeding regime. Br. Poult. Sci. 34:589-596.
Magothe, T. M., W. B. Muhuyi and A. K. Kahi. 2010. Influence of major genes for crested-head, frizzle-feather and naked neck on body weights and growth patterns of indigenous chickens reared intensively in Kenya. Trop. Anim. Health Prod. 42:173-183.
Maxwell, M. H., G. M. Robertson, M. A. Mitchell and A. J. Carlisle. 1992. The fine structure of broiler chicken blood cells, with particular reference to basophils after severe heat stress. Comp. Hem. Int. 2:190-200.
Mc Cord, J. M. 2000. The evaluation of radicals and oxidative stress. Am. J. Med. 108:652-659.
Merat, P. 1986. Potential usefulness of the Na (naked neck) gene in poultry production. World's Poult. Sci. J. 42:124-142.
Merat, P. 1990. Major genes in fowls (Gallus gallus): genes other than those affecting size. Anim. Prod. 3:355-368.
Miranda, K. M., M. G. Espey and D. A. Wink. 2001. A rapid, simple spectrophotometric method for simultaneous detection of nitrate and nitrite. Nitric Oxide. 5:62-71.
Paglia, D. E. and W. N. Valentine. 1967. Studies on the quantitative and qualitative characterization of erythrocyte glutathione peroxidise. Lab. Clin. Med. 70:158-169.
Patra, B. N., R. K. S. Bais, R. B. Prasad and B. P. Singh. 2002. Performance of naked neck versus normally feathered coloured broilers for growth, carcass traits and blood biochemical parameters in tropical climate. Asian-Aust. J. Anim. Sci. 15:1776-1783.
Patra, B. N., R. K. S. Bais, D. Sharma, B. P. Singh, R. B. Prasad and R. Bhushan, 2004. Immunocompetence status of white plumage naked neck versus normally feathered broilers in tropical climate. Asian-Aust. J. Anim. Sci. 17:560-563.
Placer, Z. A., L. L. Cushman and B. C. Johnoson. 1966. Estimation of product of lipid peroxidation (melanyl dialdehyde) in biochemical systems. Anal. Biochem. 16:359-364.
Rajkumar, U., B. L. N. Reddy, K. S. Rajaravindra, M. Niranjan, T. K. Bhattacharya, R. N. Chatterjee, A. K. Panda, M. R. Reddy and R. P. Sharma. 2010a. Effect of Naked neck gene on Immune competence, Serum biochemical and Carcass traits in chicken under tropical climate. Asian-Aust. J. Anim. Sci. 23:867-872.
Rajkumar, U., K. S. Rajaravindra, M. Niranjan, B. L. N. Reddy, T. K. Bhattacharya, R. N. Chatterjee and R. P. Sharma. 2010b. Evaluation of Naked neck broiler genotypes under tropical environment. Indian J. Anim. Sci. 80:463-466.
Raju, M. V. L. N., G. Shyam Sunder, M. M. Chawak, S. V. Rama Rao and V. R. Sadagopan. 2004. Response of naked neck (Nana) and normal (nana) broilers chickens to dietary energy levels in a subtropical climate. Br. Poult. Sci. 45:186-193.
Reddy, B. L. N., R. P. Sharma, M. Niranjan and R. N. Chatterjee. 2008. Evaluation of performance of Naked neck (Na/Na,Na/na) and dwarf (dw/dw, dw/-) gene lines under low selection intensity. Indian J. Anim. Sci. 78:975-79.
Reddy, M. R., N. K. Praharaj, S. V. Rama Rao, B. L. N. Reddy and G. Shyamsunder. 1998. Immunecompetence and growth performance of naked neck and full feathered broilers fed different nutrient regimes. In Procedings vol. II, 10th European conference, Jerusalem, Israel.
SAS institute. 2009. User's Guide Version, 9.2, 2002-2009, SAS institute Inc., Cary, NC, USA.
Singh, B., B. P. Singh, S. Singh, D. Chaudhary and C. Malik. 1998. Naked neck; a noble gene for broiler production in tropical climate. J. Appl. Anim. Res. 13:37-48.
Singh, C. V., D. Kumar and Y. P. Singh. 2001. Potential usefulness of the plumage reducing naked neck (Na) gene in poultry production at normal and high ambient temperatures. World's Poult. Sci. J. 57:139-156.
Sturkie, P. D. 1946. Tolerance of adult chickens to hypothermia. Am. J. Physiol. 147:531-536.
Thayer, S. G. and C. W. Beard. 1998. Serologic procedures; In: A laboratory manual for the isolation and identification of avian pathogens. 4th edition. pp. 248-254.
Weaver Jr., W. D. 2002. Poultry housing. In: Commercial chicken meat and egg production, 5th edition, (Ed. Donald D. Bell and William D. Weaver Jr.). pp. 102-103.
Wegman, G. and O. Smithies. 1966. A simple hemaggltination system requiring small amounts of red cells and antibodies. Transfusion 6:67.
Yahav, S. 2009. Alleviating heat stress in domestic fowl: different strategies. World's Poult. Sci. J. 65:719-732.
Yahav, S., D. Luger, A. Cahaner, M. Dotan, M. Rusal and S. Hurwitz. 1998. Thermoregulation in naked neck chicken subjected to different ambient temperature. Br. Poult. Sci. 39:133-138.
Zulkifli, I., R. T. Dass and M. T. Che Norma. 1999. The heat stress effects on physiology and fear related behaviour in red jungle fowl and domestic fowl. Canadian J. Anim. Sci. 79:165-170.