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Effects of Dietary Energy Concentration and Lysine on the Digestible Energy Ratio for Apparent Amino Acid Digestibility in Finishing Barrows
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 Title & Authors
Effects of Dietary Energy Concentration and Lysine on the Digestible Energy Ratio for Apparent Amino Acid Digestibility in Finishing Barrows
Cho, S.B.; Lee, H.J.; Chung, I.B.; Long, H.F.; Lim, J.S.; Kim, Y.Y.; Han, In K.;
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This experiment was performed to investigate the effects of two energy levels and four lysine:digestible energy (DE) ratios on the apparent digestibility of nutrients in finishing pigs. The experiment was conducted using a randomized complete block (RCB) design with three replicates. Twenty-four cross-bred finishing barrows ((LandraceYorkshire)Duroc) with an average body weight of were assigned to one of eight treatments. Each barrow was placed in an individual metabolism crate and dietary treatment and water was provided ad libitum. Diets were designed to contain lysine:ME ratios of 1.5, 1.8, 2.1 and 2.4 g/Mcal at 3.35 and 3.6 Mcal/kg of diet in a factorial arrangement. Dry matter (DM), ash, Ca and P digestibility were not affected by energy density or lysine:DE ratios. Crude fat digestibility increased as the energy density increased from 3.35 to 3.6 Mcal of DE/kg. Increasing the lysine:DE ratio also increased crude protein digestibility. There were no interactions between energy density and lysine:DE ratio in terms of nutrient digestibility. Nitrogen excretion via feces was not affected by energy density and lysine:DE ratio, while nitrogen excretion via urine was significantly affected by energy density and lysine:DE ratio. The apparent digestibility of all amino acids except for isoluecine, arginine and aspartic acid as well as average values of essential amino (EAA), non-essential amino acids (NEAA) and total amino acid digestibility (p>0.05) were not affected by energy density. The apparent digestibility of all amino acids except for leucine, proline, alanine and tyrosine, NEAA and total amino acid digestibility were significantly affected by lysine: DE ratio (p<0.05). Interactive effects of energy and lysine:DE ratio also significantly affected amino acid digestibility except for isoleucine, alanine, cystine, leucine, phenylalanine, glutamine and proline (p<0.05). In conclusion, these results suggest that maintaining the appropriate lysine:DE ratio becomes more important as the energy density of the diet increases. Consequently, increasing the lysine:DE ratio can result in increased crude protein digestibility and urinary nitrogen excretion, although apparent protein digestibility and nitrogen excretion were not affected by energy density Furthermore, increasing the lysine:DE ratio also increased the apparent digestibility of essential amino acids, except for leucine, regardless of energy density. The optimum lysine:DE ratio for maximum essential amino acid digestibility of the pig is approximately 2.4 g of lysine/Mcal of DE.
Barrows;Lysine:DE Ratio;Amino Acid Digestibility;Urinary Nitrogen;
 Cited by
Effect of Dietary Lysine Restriction and Energy Density on Performance, Nutrient Digestibility and Meat Quality in Finishing Pigs,Jin, Y.H.;Oh, H.K.;Piao, L.G.;Jang, S.K.;Choi, Y.H.;Heo, P.S.;Jang, Y.D.;Kim, Y.Y.;

Asian-Australasian Journal of Animal Sciences, 2010. vol.23. 9, pp.1213-1220 crossref(new window)
Effects of Dietary Lysine and Energy Levels on Growth Performance and Apparent Total Tract Digestibility of Nutrients in Weanling Pigs,Kim, Y.W.;Ingale, S.L.;Kim, J.S.;Kim, K.H.;Chae, B.J.;

Asian-Australasian Journal of Animal Sciences, 2011. vol.24. 9, pp.1256-1267 crossref(new window)
AOAC. 1995. Official Methods of analysis. 16th ed. Association of Official Analytical Chemists, Arlington, VA.

Batterham, E. S., L. M. Anderson, D. R. Baigant and E. White. 1990. Utilization of ileal digestible amino acids by growing pigs: effect of dietary lysine concentration on efficiency of lysine retention. Br. J. Nutr. 64:81-92. crossref(new window)

Blanchard, P. J., M. Ellis, C. C. Warkup, B. Hardy, J. P. Chadwick and G. A. Deans. 1999. The influence of rate of lean and fat tissue development of pork eating quality. J. Anim. Sci. 68:477-485.

Campbell, R. G. and A. C. Dunkin. 1983. The influence of dietary protein and energy intake on performance, body composition and energy utilization of pig growing from 7-19 kg. Anim. Prod. 36:185.

Campbell, R. G., M. R. Taverner and D. M. Curic. 1988. The effects of sex and live weight on the growing pig's response to dietary protein. Anim. Prod. 46:123-130. crossref(new window)

Castell, A. G., R. L. Cliplef, L. M. Poste-Flynn and G. Butler. 1994. Performance, carcass and pork characteristics of castrates and gilts self-fed diets differing in protein content and lysine: energy ratio. Can. J. Anim. Sci. 74:519-528. crossref(new window)

Chiba, L. I., A. J. Lewis and E. R. Peo, Jr. 1991. Amino acid and energy interrelationships in pigs weighing 20 to 50 kilograms: I. Rate and efficiency of weight gain. J. Anim. Sci. 69:694-707.

Eggum, B. O. 1973. A study of certain factors influencing protein utilization in feedstuffs in rats and pigs. Ph.D. Thesis Copenhagen, Denmark.

Gahl, M. J., M. D. Finke, T. D. Crenshaw and N. J. Benevenga. 1991. Use of a four-parameter logistic equation to evaluate the response of growing rats to ten levels of each indispensable amino acid. J. Nutr. 121:1720-1729.

Han, I. K., K. N. Heo, I. S. Shin and H. Lee. 1995. Protein sparing effect and amino acid digestibilities of supplemental lysine and methionine in weanling pigs. Asian-Aust. J. Anim. Sci. 8(4):393-402.

Heger, J. and Z. Frydrich. 1985. Efficiency of utilization of essential amino acids in growing rats at different levels of intake. Br. J. Nutr. 54:499-509. crossref(new window)

Holmes, J. H. G., H. S. Bayley, P. A. Leadbeater and F. D. Hormey 1974. Digestion of protein in the small intestine and large intestine of the pig. Br. J. Nutr. 32:479. crossref(new window)

Jorgensen, H., W. C. Sauer and P. A. Thacker. 1984. Amino acid availabilities in soybean meal, sunflower meal, fish meal and meat and bone meal fed to growing pigs. J. Anim. Sci. 58:926.

Jung, H. J., J. H. Kim, K. S. Sohn and In K. Han. 1999. Effects of lysine:DE ratio on growth performance and nutrients digestibilities in growing pigs. Koran J. Anim. Sci. 41:435.

Knabe, D. A., D. C. LaRue, E. J. Gregg, G. M. Martinez and T. D. Tanksley, Jr. 1989. Apparent digestibility of nitrogen and amino acids in protein feedstuffs by growing pigs. J. Anim. Sci. 67:441.

Lawrence, B. V., O. Adeola and T. R. Cline. 1994. Nitrogen utilization and lean growth performance of 20- to 50- kilogram pigs fed diets balanced for lysine:energy ratio. J. Anim. Sci. 72:2887.

Nam, D. S. and F. X. Aherne. 1994. The effect of lysine:energy ratio on the performance of weanling pigs. J. Anim. Sci. 72:1247.

NRC. 1998. Nutrient Requirements of Swine. (10th Ed.). National Academy Press, Washington, DC.

Rudolph, B. C., L. S. Boggs, D. A. Knabe, T. D. Tanksley, Jr. and S. A. Anderson. 1983. Digestibility of nitrogen and amino acids in soybean products for pigs. J. Anim. Sci. 57:373.

Tang, M. Y., Q. G. Ma, Z. D. Chen and C. Ji. 2007. Effects of dietary metabolizable energy and lysine on carcass characteristics and meat quality in arbor acres broilers. Asian-Aust. J. Anim. Sci. 20:1865-1873.

Urynek, W. and L. Buraczewska. 2003. Effect of dietary energy concentration and apparent ileal digestible lysine: metabolizable energy ratio on nitrogen balance and growth performance of young pigs. J. Anim. Sci. 81:1227.