AOAC. 1990. Official Method of Analysis, 15th edn, Association of Official Analytical Chemists. Arlington, VA.
Babu, L. K., H. N. Pandey and A. Sahoo. 2003. Effect of individual versus group rearing and feeding of different levels of milk and skim milk on nutrient utilization in crossbred calves. Asian-Aust. J. Anim. Sci. 16(10):1455-1459.
Bartlett, K. S., F. K. McKeith, M. J. VandeHaar, G. E. Dahl and J. K. Drackley. 2006. Growth and body composition of dairy calves fed milk replacers containing different amounts of protein at two feeding rates. J. Anim. Sci. 84:1454-1467.
Blome, R. M., J. K. Drackley, F. K. McKeith, M. F. Hutjens and G. C. McCoy. 2003. Growth, nutrient utilization, and body composition of dairy calves fed milk replaces containing different amounts of protein. J. Anim. Sci. 81:1641-1655.
Brosh, A., Y. Aharoni, D. Levy and Z. Holzer. 2000. Effect of dietary protein concentration and source on the growth rate and on body composition of Holstein-Friesian male calves. Anim. Sci. 70:527-536.
Chung, T. K. and D. H. Baker. 1992. Ideal amino acid pattern for 10-kilogram pigs. J. Anim. Sci. 70:3102-3111.
Dabiri, N. and M. L. Thonney. 2004. Source and level of supplemental protein for growing lambs. J. Anim. Sci. 82:3237-3244.
Davis, C. L. and J. K. Drackley. 1998. The Development, nutrition, and management of the young calf. Ames: Iowa State University Press. 207-257.
Donnelly, P. E. and J. B. Hutton. 1976a. Effects of dietary protein and energy on the growth of Friesian bull calves. I. Food uptake, growth and protein requirements. NZ. J. Agric. Res. 19:289-297.
Donnelly, P. E. and J. B. Hutton. 1976a. Effects of dietary protein and energy on the growth of Friesian bull calves. II. Effects of level of feed intake and dietary protein content on body composition. NZ. J. Agric. Res. 19:409-414.
Duncan, B. B. 1955. Multiple range and multiple 'F' test. Biometric. 11:1-42.
Gonzalez, F., A. Elias and V. Urquiza. 1990. Effect of different protein levels on the feed of grazing calves. Cuban J. Agric. Sci. 24:159-164.
Hansen, J. A., J. L. Nelssen, R. D. Goodband and T. L. Weeden. 1993. Evaluation of animal protein supplements in diets of early-weaned pigs. J. Anim. Sci. 71:1853-1862.
Henry, Y. and B. Seve. 1993. Feed intake and dietary amino acid balance in growing pigs with special reference to lysine, tryptophan and threonine. Pig News and Info. 14:35-43.
Holcombe, D. W., D. R. Hanks, L. J. Krysl, M. B. Judkins, G. M. Niksic and D. M. Hallford. 1994. Effect of age at weaning on intake, insulin-like growth factor I, thyroxine, triiodothyronine and metabolite profiles and growth performance in young lambs. Sheep Res. J. 10(1):25-34.
Jagusch, K. T., B. W. Norton and D. M. Walker. 1970. Body composition studies with the milk-fed lamb. 2. The effect of the age of the lamb and the protein content of the diet on the chemical composition of the body and its organs. J. Agric. Sci. Camb. 75:279-285.
Krishna Mohan, D. V. G., D. R. Das and S. K. Ranjhan. 1987. Performance of young crossbred calves fed different levels of milk and different types of calf starters. 3. Growth, feed efficiency and cost of feeding calves from birth to three months of age. Indian J. Dairy Sci. 40:18-22.
Lohakare, J. D., A. K. Pattanaik and S. A. Khan. 2006. Effect of dietary protein levels on the performance, nutrient balances, metabolic profile and thyroid hormones of crossbred calves. Asian-Aust. J. Anim. Sci. 19(11):1588-1596.
NRC. 2001. Nutrient requirements of dairy cattle, 7th edn. National Academy of Sciences. National Research Council Publication, Washington DC, USA.
Nyachoti, C. M., F. O. Omogbenigun, M. Rademacher and G. Blank. 2006. Performance responses and indicators of gastronintestinal health in early weaned pigs fed low-protein amino acid-supplemented diets. J. Anim. Sci. 84:125-134.
Pattanaik, A. K., V. R. B. Sastry, R. C. Katiyar and Murari Lal. 2003. Influence of grain processing and dietary protein degradability on nitrogen metabolism, energy balance and methane production in young calves. Asian-Aust. J. Anim. Sci. 16(10):1443-1450.
Quigley, J. D., III, T. A. Wolfe and T. H. Elassert. 2006. Effects of additional milk replacer feeding on calf health, growth, and selected blood metabolites in calves. J. Dairy Sci. 89:207-216.
Sahoo, A., S. C. Mishra and N. N. Pathak. 2002. Dietary protein restriction on growth and immuno-biochemical response of crossbred calves during post-ruminant phase of life. Asian-Aust. J. Anim. Sci. 15(8):1121-1127.
Sengar, S. S., D. C. Joshi and S. B. Johri. 1985. Effect of feeding different levels of protein on nutrient utilization and growth in male buffalo calves. Indian J. Anim. Nutr. 2:27-30.
Singh, R. K., D. N. Verma and H. Q. Husain. 1994. Estimating the requirement of protein for maintenance and growth of female buffalo calves. J. Anim. Nutr. 11:97-100.
Sykes, A. R. and A. C. Field. 1973. Effects of dietary deficiencies of energy, protein and calcium on the pregnant ewe. N serum total protein, albumin, globulin transfer and plasma urea levels. J. Agric. Sci. 100:29-36.
Terosky, T. L., A. J. Heinrichs and L. L. Wilson. 1997. A comparison of milk protein sources in diets of calves up to eight weeks of age. J. Dairy Sci. 80:2977-2983.
Tzeng, D. and C. L. Davis. 1980. Amino acid nutrition of the young calf. Estimation of methionine and lysine requirements. J. Dairy Sci. 63:441-450.
Verma, D. N. 1998. Studies on protein requirement of buffalo calves. Buffalo Bulletin. 17:10-13.
Wang, J. F., M. Wang, D. G. Lin, B. B. Jensen and Y. H. Zhu. 2006. The effect of source of dietary fiber and starch on ileal and fecal amino acid digestibility in growing pigs. Asian-Aust. J. Anim. Sci. 19(7):1040-1046.
Williams, A. P. and D. Hewitt. 1979. The amino acid requirements of the preruminant calf. Br. J. Nutr. 41:311-319.