Predicting the Body Weight of Adult Nicobari Blackbirds from Body Measurements under Farm Conditions
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Authors
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P. Tensingh Gnanaraj
Department of Livestock Production Management, Madras Veterinary College, Chennai-600007
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D. Divyalakshmi
Department of Livestock Production Management, Madras Veterinary College, Chennai-600007
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Thanga Thamil Vanan
Department of Livestock Production Management, Madras Veterinary College, Chennai-600007.
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N. Kumaravelu
Department of Livestock Production Management, Madras Veterinary College, Chennai-600007.
Keywords:
Body weight, Body measurements, correlation, regression, Nicobari Black birdsAbstract
Data on body weight and body measurements were collected from 30 Nicobari Black adult birds which were maintained in Livestock Farm Complex, TANUVAS, Chennai-600 051. The correlation between body weight (Kg), body length (cm), chest girth (cm), tibio tarsus length (cm) and tibio tarsus circumference (cm) was positive and strongly correlated in most cases. Body measurements succeed to describe more variation in live weight. Since there is high correlation coefficient between body weight and other body measurements, these variables or combination could provide a good estimate for predicting live weight. The adjusted R square value of 0.864 indicates that 86.4 per cent of the variation in body weight is explained by body length, chest girth and tibio tarsus circumference.
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References
Assan, N. (2013). Bioprediction of body weight and carcass parameters from morphometric measurements in livestock and poultry. Sci. J. Rev. 2(6):140-150
De Brito Ferreira, M.P., Ramos De Carvaiho, F.F., Nogueira Barros. N., and De Assis Mello, A, (2000). Relationship between body measurements and live weight in Saanen and Nubian goat breeds. Proceedings of the International Conference on Goats, France, 15-21 May, 2000.pp. 16
Gueye, E.F., Ndiaye, A. and Branckaert, R.D.S. (1998). Prediction of body weight on the basis of body measurements in mature indigenous chickens in Senegal. Livest. Res. Rural. Dev. 10: (3).
Mutua, F.K., Dewey, C.E., Arimi, S.M., Schelling, E. and Ogara, W.O. (2011). Prediction of live body weight using length and girth measurements for pigs in rural Western Kenya. JSHAP. 19(1):26–33.
Ogah, D.M. (2011). In vivo prediction of live weight and carcass traits using body measurements in indigenous guinea fowl. Anim Biol Anim Husb . 27(4): 1827- 1836
Rajendran, R., Kumaravelu, N., Pandian, C., Premavalli, K. and Babu, M. (2012). Prediction of body weight in Beltsville small White adult Turkey. Indian Vet J. 89(8): 107.
Raji, A.O, Igwebuike, J.U and Usman, M.T. (2009). Zoometrical body measurements and their relation with live weight in matured local Muscovy ducks in Borno State, Nigeria. ARPN J. Agric. Biol. Sci. 4(3): 58-62.
Saatchi, M. (2008). Effects of age, sex, feather colour, body measurements, and body weight on down and feather yield in native Turkish geese. Turkish J. Vet. Anim. Sci. Turk J Vet Anim Sci, 32(4): 293-297.
