Heritability and Repeatability Estimates of Some Measurable Traits in Meat Type Chickens Reared for Ten Weeks in Abeokuta, Nigeria

A total of 150 meat type chickens comprising 50 each of Arbor Acre, Marshall and Ross were used for this study which lasted for 10 weeks at the Federal University of Agriculture, Abeokuta, Nigeria. Growth performance data were collected from the third week through week 10 and data obtained were analysed using the Generalized Linear Model Procedure. Heritability estimates (h2) for body dimensions carried out on the chicken strains ranged from low to high. Marshall broiler chicken strain had the highest h2 for body weight 0.46±0.04, followed by Arbor Acre and Ross with h2 being 0.38±0.12 and 0.26±0.06, respectively. The repeatability estimates for body weight in the three broiler strains were high, and it ranged from 0.70 at week 4 to 0.88 at week 10. Relationships between the body weight and linear body measurements in the broiler chicken strains were positive and highly significant (p > 0.05).
{"references":["Adebambo, A.O., Faybenvo, O.I., Fragite, S.O., Ikeobi C.O.N. and\nAdebambo, O.A. (2005). Preliminary assessment of growth and\nreproductive data of three strain of chickens for broiler development in\nNigeria. Proceedings of 1st Nigeria International Poultry Summit, Ota,\nOgun State, Nigeria. Pp: 9-11.","Adeleke, M.A., Ozoje, M.O., Olufunmilayo A. Adebambo, Peters, S.O.\nand Bamgbose, A.M. (2004). Estimation of body weight from linear\nbody measurements among crossbred egg-type chickens. Proceedings of\nthe 29th Annual Conference of the Genetics Society of Nigeria,\nUniversity of Agriculture, Abeokuta, Ogun State, Nigeria, Pp 88-91.","Ajayi, F.O., Ejiofor, O. and Ironkwe, M. O. (2008). Estimation of\nbodyweight from body measurements in two commercial meat type\nchickens. Global Journal of Agricultural Science. 7(1): 57-59.","Akanno, E.C., Ole, P.K., Okoli, I.C. and Ogundu, U.E. (2007).\nPerformance characteristics and prediction of body weight of broiler\nstrains using linear body measurements. Proceedings of the 22nd Annual\nConference of Nigerian Society for Animal Production, Calabar, Cross\nRiver State, Nigeria, Pp: 162-164.","Amao, S.R., Ojedapo, L.O., Oyewumi, S.O. and Ameen, S.A. (2011).\nEstimation of body weight from linear body measurements in Wadi Ross\nmeat type chicken in derived savannah zone of Nigeria. Proceedings of\nthe 16th Annual Conference of the Animal Science Association of\nNigeria, Anyigba, Nigeria. Pp 9-12.","Argenta˜o, C., Michelan Filho, T., Marques, J.B., Souza, E.M., Eler, J.P.\nand Ferraz, J.B.S. (2002). Genetic and phenotypic parameters of growth\nand carcass traits of a male line of broilers raised in tropical conditions.\nIn Proceedings of 7th Congress of Genetics Applied to Livestock\nProduction, Montpellier, France. Pp: 333-336.","Banerjee, S. (2011). Estimation of body weight at different ages using\nlinear and some non-linear regression equations in a duck breed reared\nin hot and humid climate of Eastern India. American-Eurasian Journal\nof Scientific Research. 6 (4): 201-204.","Cahaner, A. and Nitsan, Z. (1985). Evaluation of simultaneous selection\nfor live body weight and against abdominal fat in broilers. Poultry\nScience. 64: 1257-1263.","Havenstein, G.B., Ferket, P.R. and Qureshi, M.A. (2003). Growth,\nlivability and feed conversion of 1957 versus 2001 broiler when fed\nrepresentative and 2001 broiler diets. Poultry Science. 82: 1500-1508.\n[10] Kabir, M.T., Yakudu, H., Akpa, G.N., Jokthan, G.E., Abdul, S.B.,\nAbdulrashid, M. and Adamu, Y.H. (2008). Repeatability for body\nweight and body conformation traits in Anak 2000 strains of Broiler\nchickens. Journal of Animal Breeding and Genetics. 112: 17-21.\n[11] Ledur, M.C., Schmidt, G.S. Figueiredo, E.P. A´vila, V.S. and Fiorentin,\nL. (1994). Paraˆmetros gene´ticos e fenotı´picos em linhagens de aves\nselecionadas para corte. Pesq. Agropec. Bras. 29: 503-508.\n[12] Le Bihan-Duval, E., Mignon-Grasteau, S., Millet, N. and Beaumont, C.\n(1998). Genetic analysis of a selection experiment on increased body\nweight and breast muscle weight as well as on limited abdominal fat\nweight. British Poultry Science. 39: 346-353.\n[13] Mignon-Grasteau, S., Beaumont, C., Le Bihan-Duval, E., Poivey, J.P.,\nde Rochambeau, H. and Ricard, F.H. (1999). Genetic parameters of\ngrowth curve parameters in male and female chickens. British Poultry\nScience. 40: 44-51.\n[14] Nesamvuni, A.E., Malandzii, J., Zamanyimi, N.D. and Taylor, G.J.\n(2000). Estimates of body weight in Nguru type cattle under commercial\nmanagement conditions. South African Journal of Animal Science. 13:\n114-116.\n[15] Olowofeso, O. (2009). Phenotypic correlations and prediction of body\nweight and body size parameters in broiler chickens. Journal of Applied\nAgricultural Research. I: 71-76.\n[16] Oluyemi, J.A. and Roberts, S.A. (1979). Poultry Production in Warm\nWet Climates. 2nd Edition, Macmillan Press Ltd., London.\n[17] Pundir, R.K., Singh, P.K. and Dangi, P.S. (2011). Factor analysis of\nbiometric traits of kankrej cows to explain body conformation. Asian-\nAustralian Journal of Animal Science. 24 (4): 449-456.\n[18] Rance, K.A., McEntee, G.M. and McDevitt, R.M. (2002). Genetic and\nphenotypic relationships between and within support and demand tissues\nin a single line of broiler chicken. British Poultry Science. 43: 518–527.\n[19] Yalcin, S., Settar, P., Ozkan S. and Cahaner, A. (1997). Comparative\nevaluation of three commercial broiler stocks in hot versus temperate\nclimates. Poultry Science. 76: 921-929."]}