Bridges T.C., Turner L.W., Cromwell G.L., Pierce J.L., 1995. Modeling the effect of diet formula¬tion on nitrogen and phosphorus excretion in swine waste. Appl. Eng. Agri., 11: 731-738.
Canh T.T., Aarnink A.J.A., Schutte J. B., Sutton A., Langhout D.J., Verstegen M.W.A., 1998. Di¬etary protein affects nitrogen excretion and ammonia emission from slurry of growing-finishing pigs. Livestock Product. Sci., 56: 181-191.
Decamp S.L., Hankins A., Carroll A., Ivers D.J., Richert B.T., Sutton A., Anderson D.B., 2001. Effect of ractopamine and dietary crude protein on nitrogen and phosphorus excretion from finishing pigs. Swine research report. Purdue University, West Lafayette.
Figueroa J.L., Lewis A.J., Miller P.S., Fisher R.L., Gomez R. S. Diedrichsen R.M., 2002. Nitrogen metabolism and growth performance of gilts fed standard cor-soybean meal diets or low-crude protein, amino acid-supplemented diets. J. Anim. Sci., 80: 2911-2919.
Friesen K.G., Nelssen J.L., Unruh J.A., Goodband R.D., Tokach M.D., 1994. Effects of the inter-relationship between genotype, sex and dietary lysine on growth performance and carcass com¬position in finishing pigs fed to either 104 to 127 kilograms. J. Anim. Sci., 72: 946-954.
Grela E., Pastuszak J., Czech A., 2004. Wpływ ograniczenia poziomu białka w dawce przy zróżnicowanej zawartości aminokwasów na efekty tuczu świń. Ann. UMCS. Vol. XXII, 18: 129-135.
Grela E., Kowalczuk-Vasilev E., 2010. Influence of digestible crude protein reduction and amino acids additive in growing pigs diets on their performance and nitrogen balance. Ann. UMCS. Vol. XXVIII, 1: 1-8.
Kerr B.J., Easter R.A., 1995. Effect of feeding reduced protein, amino acid-supplemented diets on nitrogen and energy balance in grower pigs. J. Anim. Sci., 73: 3000-3008.
Kerr B.J., Southern L.L., Bidner T.D., Friesen K.G., Easter R.A., 2003. Influence of dietary protein level. Amino acid supplementation and dietary energy levels on growing-finishing pig perfor¬mance and carcass composition. J. Anim. Sci., 81: 3075-3087.
Knabe D.A., 1996. Optimizing the protein nutrition of growing-finishing pigs. Anim. Feed Sci. Techn., 60: 331-341.
Liu H., Allee G.L., Touchette K.J., Frank J. W., Spencer J.D., 2000. Effect of reducing protein and adding amino acids on performance, carcass characteristic and nitrogen excretion and the va- line requirement of early-finishing barrows. J. Anim Sci. 78 (suppl.2): 66.
Lynch M.B., Sweeney T., Callan J.J., Flynn B., O'Doherty J.V, 2007. The effect of high and low die¬tary crude protein and inulin supplementation on nutrient digestibility, nitrogen excretion, intes¬tinal microflora and manure ammonia emission from finisher pigs. J. Anim. Sci., 70: 1112-1121.
Normy Żywienia Świń, 1993. Wartość pokarmowa pasz. Instytut Fizjologii i Żywienia Zwierząt im. J. Kielanowskiego, Jabłonna.
Official Methods of Analysis of the Association of Official Analytical Chemists, 1990. 15th Edi¬tion, Arlington
Owen K.Q., Knabe D.A., Burgoon K. G., Gregg E.J., 1994. Self-selection of diets and lysine re¬quirements of growing - finishing swine. J. Anim. Sci., 72: 554-564.
Shriver J.A., Carter S.D., Sutton A.I., Richert B.T., Senne B.W., Pettey L. A., 2003. Effects of add¬ing fiber sources to reduced crude protein, amino acids suplemented diets on nitrogen excretion, growth performance nd carcass traits of finishing pigs. J. Anim. Sci., 81: 492-502.
Tuitoek K., Young L.G., De lange C.F., Kerr B.J., 1997. The effect of reducing excess dietary amino acids on growing-finishing pig performance: an elevation of the ideal protein concept. J. Anim. Sci., 75: 1575-1583.
Świątkiewicz M., 2003. Poziom azotu mocznikowego jako wskaźnik zapotrzebowania na lizynę u świń. Post. Nauk Roln. 4: 37-46.
Zervas S., Zijlstra R.T., 2002. Effects of dietary protein and fiber on nitrogen excretion patterns and plasma urea in grower pigs. J. Anim. Sci., 80: 3247-3256.