J. -M. Lariviere
Department of Animal Production, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
C. Michaux
Department of Animal Production, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
V. Verleyen
Department of Animal Production, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
C. Hanzen
Department of Animal Production, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
P. Leroy
Department of Animal Production, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
ABSTRACT
This experiment aims to compare in vivo breast morphometric and ultrasound measurements, as well as live body weight to predict breast meat weight in slow-growing chickens. Traits included Thoracic Circumference (TC), Chest Width (CW), Keel Length (KL) and angle (KA), Live Weight (LW), thickness of muscle determined by sonography (TM) and Breast Meat Weight (BMW). Birds were then slaughtered and total breast muscles (Pectoralis major and Pectoralis minor) were dissected and weighed. A linear model including sex effect and the different predictor measurements, as covariates, were adjusted to the data. Homogeneity test of slopes between sexes showed no difference. Means of the traits were 115.58g (±19.72) for BMW, 1031 g (±163.44) for LW, 68.65o (±6.89) for KA, 26.81 cm (±1.57) for TC, 10.40 cm (±0.62) for KL, 4.67 cm (±0.47) for CW and 11.52 mm ( ±1.11) for TM. All traits were highly correlated to BMW: TC (0.85), LW (0.84), KL (0.81) and TM (0.79), except for KA (0.28) and CW (0.19). Finally, TC, LW, KL and TM appear to be valuable indicators for estimating BMW in slow-growing chickens but KA and CW remain poor predictors.
PDF References Citation
How to cite this article
J. -M. Lariviere, C. Michaux, V. Verleyen, C. Hanzen and P. Leroy, 2009. Non-Invasive Methods to Predict Breast Muscle Weight in Slow-Growing Chickens. International Journal of Poultry Science, 8: 689-691.
DOI: 10.3923/ijps.2009.689.691
URL: https://scialert.net/abstract/?doi=ijps.2009.689.691
DOI: 10.3923/ijps.2009.689.691
URL: https://scialert.net/abstract/?doi=ijps.2009.689.691
REFERENCES
- Bochno, R., J. Rymkiewicz and J. Szeremeta, 2000. Regression equations for in vivo estimation of the meat content of Pekin duck carcases. Br. Poult. Sci., 41: 313-317.
Direct Link - Griffin, A.M., R.A. Renema, F.E. Robinson and M.J. Zuidhof, 2005. The influence of rearing light period and the use of broiler or broiler breeder diets on forty-two day body weight, fleshing and flock uniformity in broiler stocks. J. Applied Poult. Res., 14: 204-216.
Direct Link - Grunder, A., B. Pawluczuk, A. Fortin and J.R. Chambers, 1989. Heritabilities, phenotypic and genetic correlation of live and carcass traits and carcass parts in ganders. Arch. Geflugelkunde, 53: 157-162.
Direct Link - Konig, T., M.A. Grashorn and W. Bessei, 1997. Estimation of breast meat yield in living broilers using B-Scan sonography. First report: Defining sites of measurement. Arch. Geflugelkunde, 61: 227-231.
Direct Link - Konig, T., M.A. Grashorn and W. Bessei, 1998. Estimation of breast meat yield in living broilers using B-scan sonography. Second report: Accuracy of the method. Arch. Geflugelkunde, 62: 121-125.
Direct Link - Lariviere, J.M., C. Michaux, V. Verleyen, C. Hanzen and P. Leroy, 2007. Comparison of non-invasive methods to predict breast muscle weight in slow-growing chickens. Proceeding of the 15th European Symposium on the Quality of Poultry Meat and 12th European Symposium on the Quality of Eggs and Egg Products, Sept. 2-5, Prague, pp: 262-263.
- Lariviere, J.M., F. Farnir, J. Detilleux, C. Michaux, V. Verleyen and P. Leroy, 2009. Performance, breast morphological and carcass traits in the Ardennaise chicken breed. Int. J. Poult. Sci., 8: 452-456.
CrossRefDirect Link - Le Bihan-Duval, E., C. Berri, F. Seigneurin and M. Reffay, 2001. Les ultrasons pour predire le developpement musculaire. Viandes Produits Carnes, 22: 59-62.
Direct Link - Remignon, H., F. Seigneurin and F. Moati, 2000. In vivo assessment of the quantity of breast muscle by sonography in broilers. Meat Sci., 56: 133-138.
CrossRefDirect Link