Effects of Dietary Levels of Methionine on Broiler Performance and Carcass Characteristics
DOI:
https://doi.org/10.3923/ijps.2011.147.151Keywords:
Broilers, carcass, methionine, overall performanceAbstract
The present experiment was carried out to determine the effect of dietary methionine levels higher than NRC recommendation on broiler performance and carcass traits. Four dietary levels of methionine 0, 100, 120 and 130% of NRC recommendation were used. Dietary levels of methionine, expressed as percentage of NRC recommendations, significantly (p<0.05) affected feed intake, Feed Conversion Ratio (FCR) and Protein Efficiency Ratio (PER). Feed intake was numerically improved with 110 and 130% of NRC methionine, but was not improved by 120% NRC methionine. Body weight gain was significantly (p<0.05) improved by 110 and 130% of NRC methionine compared to the control. The broiler chicks on methionine higher than NRC showed significant (p<0.05) increase in absolute and relative weight of breast and significant (p<0.05) decrease in abdominal fat.
References
Brake, J., D. Balnave and J.J. Dibner, 1998. Optimum dietary arginine: Lysine ratio for broiler chickens is altered during heat stress in association with changes in intestinal uptake and dietary sodium chloride. Br. Poult. Sci., 39: 639-647.
Cheng, T.K., M.L. Hamre and C.N. Coon, 1997. Responses of broilers to dietary protein levels and amino acid supplementation to low protein diets at various environmental temperatures. J. Applied Poult., 6: 18-33.
Dale, N.M. and H.L. Fuller, 1980. Effect of diet composition on feed intake and growth of chicks under heat stress. II. Constant vs. cycling temperatures. Poult. Sci., 59: 1434-1441.
Fuller, H.L. and G. Mora, 1973. Effect of diet composition on heat increment, feed intake and growth of chicks subjected to heat stress. Poult. Sci., 52: 2029-2029.
Hai, L., D. Rong and Z.Y. Zhang, 2000. The effect of thermal environment on the digestion of broilers. J. Anim. Physiol. Anim. Nutr., 83: 57-64.
Howlider, M.A.R. and S.P. Rose, 1987. Temperature and the growth of broilers. World Poult. Sci. J., 43: 228-237.
Kidd, M.T., B.J. Kerr and P.W. Waldroup, 1997. Performance and carcass composition of Large White toms as affected by dietary crude protein and threonine supplements. Poult. Sci., 79: 1392-1397.
Ojano-Dirain, C.P. and P.W. Waldroup, 2002. Evaluation of lysine, methionine and threonine needs of broilers three to six week of age under moderate temperature stress. Int. J. Poult. Sci., 1: 16-21.
Pillai, P.B., A.C. Fanatico, K.W. Beers, M.E. Blair and J.L. Emmert, 2006. Homocysteine remethylation in young broilers fed varying levels of methionine, choline and betaine. Poult. Sci., 85: 90-95.
Saki, A.A., H.A. Mohammad Pou, A. Ahmdi, M.T. Akhzar and M.M. Tabatabie, 2007. Decreasing broiler crude protein requirement by methionine supplementation. Pak. J. Biol. Sci., 10: 757-762.
Schutte, J.B. and M. Pack, 1995. Sulfur amino acid requirement of broiler chicks from fourteen to thirty-eight days of age. 1. Performance and carcass yield. Poult. Sci., 74: 480-487.
Schutte, J.B. and M. Pack, 1995. Effects of dietary sulphur containing amino acids on performance and breast deposition of broiler chicks during the growing and finishing phases. Br. Poult. Sci., 36: 747-762.
Schutte, J.B., J. de Jong, W. Smink and M. Pack, 1997. Replacement value of betaine for DL-methionine in male broiler chicks. Poult. Sci., 76: 321-325.
Waldroup, P.W., R.J. Mitchell, J.R. Payane and K.R. Hazen, 1976. Performance of chicks fed diets formulated to minimize excess levels of essential amino acids. Poult. Sci., 55: 243-253.
Zuprizal, M. Larbier, A.M. Chagneau and P.A. Geraert, 1993. Influence of ambient temperature on true digestibility of protein and amino acids of rapeseed and soybean meals in broilers. Poult. Sci., 72: 289-295.
Austic, R.E., 1985. Feeding Poultry in Hot Climates. In: Stress Physiology in Livestock, Yousef, M.K. (Ed.). CRC Press, Boca Raton, FL., pp: 123-136.
NRC, 1994. Nutrient Requirement of Poultry. 9th Rev. Edn., National Academy Press, Washington, DC., pp: 19-26.
SAS, 1985. SAS/STAT User's Guide. Statistical Analysis System Institute Inc., Cary NC. USA.
Steel, R.G.D. and J.H. Torrie, 1980. Principles and Procedures of Statistics: A Biometrical Approach. 2nd Edn., McGraw Hill, New York, United States, ISBN-13: 9780070609266, Pages: 633.
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