Free Access
Reprod. Nutr. Dev.
Volume 41, Number 6, November-December 2001
Page(s) 513 - 529


  1. Agrawal N., Kewalramani N., Kamra D.N., Agarwal D.K., Nath K., Hydrolytic enzymes of buffalo rumen: composition of cell free rumen fluid, bacterial and protozoal fractions, Buffalo J. 7 (1991) 203-207.
  2. Andries J.I., Buysse F.X., De Brabander D.L., Cottyn B.G., Isoacids in Ruminant Nutrition: Their role in ruminal and intermediary metabolism and possible influence on performances, Anim. Feed Sci. Tech. 18 (1987) 169-180.
  3. Argyle J.L., Baldwin R.L., Effects of amino acids and peptides on rumen microbial growth yield, J. Dairy Sci. 72 (1989) 2017.
  4. Baldwin R.L., Allison M.J., Rumen metabolism, J. Anim. Sci. 57 (1983) 461-477.
  5. Banchart D., Legay-Carmier F., Doreau M., Gaillard B., Lipid metabolism of liquid associated and solid-adherent bacteria in rumen contents o dairy cows offered lipid-supplemented diets, Br. J. Nutr. 63 (1990) 563.
  6. Blackburn T.H., Protease production by Bacteroides amylophilus strain H18, J. Gen. Microbiol. 53 (1968) 27-36.
  7. Blackburn T.H., Hobson P.N., Isolation of proteolytic bacteria from the rumen of sheep, J. Gen. Microbiol. 22 (1960) 282-289.
  8. Blackburn T.H., Hobson P.N., Further studies on the isolation of proteolytic bacteria from the sheep rumen, J. Gen. Microbiol. 29 (1962) 69-81.
  9. Blaxter K.L., Martin A.K., The utilization of protein as a source of energy in fattening sheep, Br. J. Nutr. 16 (1962) 397-407.
  10. Brondani A., Towns R., Chou K., Cook R.M., Effects of isoacids, urea, and sulphur on ruminal fermentation in sheep fed high fiber diets, J. Dairy Sci. 74 (1991) 2724-2727.
  11. Bryant M.P., Nutritional requirements of the predominant rumen cellulolytic bacteria, Fed. Proc. 32 (1973) 1809.
  12. Burrough W., Nelson D.K., Mertens D. R., Evaluation of protein nutrition by metabolizable protein and urea fermentation potential, J. Dairy Sci. 58 (1975) 611-620.
  13. Caffrey P.J., Hatfield E.E., Norton H.W., Garrigus U.S., Nitrogen metabolism in the Ovine. Adjustment to a urea-rich diet, J. Anim. Sci. 26 (1967) 595-600.
  14. Considine P.J., Coughlan M.P., Production of carbohydrate-hydrolyzing enzyme blends by solid-state fermentation, in: Coughlan M.P. (ed.), Enzyme systems for lignocellulose degradation, Elsevier Applied Science, New York (1989) pp. 273-281.
  15. Cotta M.A., Amylolytic activity of selected species of ruminal bacteria, Appl. Environ. Microbiol. 54 (1988) 772-776.
  16. Cotta M.A., Hespell R.B., Proteolytic activity of ruminal bacterium, Butyrivibrio fibrisolvens, Appl. Environ. Microbiol. 52 (1986) 51-58.
  17. Dehority B.A., Microbial interaction in the rumen, Rev. Fac. Agron. (LUZ) 15 (1998) 69-86.
  18. Dehority B.A., Scott H.W., Extent of cellulose and hemicellulose digestion in various forage by pure cultures of rumen bacteria, J. Dairy Sci. 50 (1967) 1136-1141.
  19. Dehority B.A., Orpin C.G., Development of, and natural fluctuation in, rumen microbial population, in: Hobson P.N. (ed.), The rumen Microbial Ecosystem, Elsevier Applied Science, London, 1988, p. 151.
  20. Felix A., Cook R.M., Huber J.T., Isoacids and urea as a protein supplement for lactating cows fed corn Silage, J. Dairy Sci. 63 (1980) 1098-1103.
  21. Forsberg C.W.V., Beveridge T.J., Hellstrom A., Cellulase and xylanase release from Bacteroides succinogenes and its importance in the rumen environment, Appl. Environ. Microbiol. 42 (1981) 886-895.
  22. France J., Siddons R.D., Volatile fatty acid production, in: Forbes J.M., France J. (Eds.), Quantitative Aspects of Ruminant Digestion and Metabolism, C.A.B. International, 1993, pp. 107-121.
  23. Gash B.A., Cellulase production and activity by Trichoderma sp. A-100, J. Appl. Bacteriol. 73 (1992) 79-82.
  24. Gibbons R.J., Doetsch R.N., Physiological study of an obligatory anaerobic ureolytic bacterium, J. Bacteriol. 77 (1959) 417-428.
  25. Giesecke D., Stangassinger M., Tiemeyer W., Nucleic acid digestion and urinary purine metabolites in sheep nourished by intragastric infusions, Can. J. Anim. Sci. 64 (suppl.) (1984) 144-145.
  26. Gorosito A.R., Russell J.B., Van Soest P.J., Effect of carbon-4 and carbon-5 volatile fatty acids on digestion of plant cell wall in vitro, J. Dairy Sci. 68 (1985) 840-847.
  27. Harfoot C.G., Hazlewood G.P., Lipid metabolism in the rumen, in: Hobson P.H. (ed.), The Rumen Microbial Ecosystem, Elsevier, Appl. Sci. Publ. Co., Inc., New York, NY, 1988, p. 285.
  28. Hefner D.L., Berger L.L., Fahey G.G. Jr., Branched-chain fatty acid supplementation of corn crop residue diets, J. Anim. Sci. 61 (1985) 1264-1275.
  29. Hobson P.N., Wallace J.R., Microbial ecology and activities in the rumen: part I, Crit. Rev. Microbiol. 9 (1982) 165-225.
  30. Hobson P.N., McDougall E.I., Summers R., The nitrogen sources of Bacteroides amlyophilus, J. Gen. Microbiol. 50 (1968) 124-129.
  31. Hume I.D., Moir R.J., Somers M., Synthesis of microbial protein in the rumen. I. Influence of the level of nitrogen intake, Aust. J. Agric. Res. 21 (1970) 283-289.
  32. Ikwuegbu O.A., Sutton J.D., The effect of varying the amount of linseed oil supplementation on rumen metabolism in sheep, Br. J. Nutr. 48 (1982) 365-370.
  33. Ilian M.A., Razzaque M.A., Salman, A.J., Use of fat in diets of sheep in hot environments. II. Effect on rumen metabolism, Anim. Feed Sci. Tech. 19 (1988) 343-350.
  34. Jenkins T.C., Fotouhi N., Effects of lecithin and corn oil on site of digestion, ruminal fermentation and microbial protein synthesis in sheep, J. Anim. Sci. 68 (1990) 460-469.
  35. Jenkins T.C., Palmquist D.L., Effect of fatty acids or calcium soaps on rumen and total nutrient digestibility of dairy rations, J. Dairy Sci. 67 (1984) 978-987.
  36. John A., lassaacson H.R., Bryant M.P., Isolation and characteristics of a ureolytic strain of Selenomonas ruminantium, J. Dairy Sci. 57 (1974) 1003-1010.
  37. Kamra D.N., Pathak N.N., Nutritional Microbiology of Farm Animals, Vikas Publishing House Pvt. Ltd., Delhi 110032, India, 1996.
  38. Latham M.J., Storry J.E., Sharp M.E., Effect of low-roughage diets on the microflora and lipid metabolism in the rumen, Appl. Microbiol. 24 (1972) 871-877.
  39. Leatherwood J.M., Cellulose degradation by Ruminococcus, Fed. Proc. 32 (1973) 1814-1820.
  40. Lindberg J.E., Jacobsson K.G., Nitrogen and purine metabolism at varying energy and protein supplies in sheep sustained on intragastric infusion, Br. J. Nutr. 64 (1990) 359-370.
  41. Maeng W.J., Baldwin R.L., Factors influencing rumen microbial growth rates and yields: effect of amino acid additions to a purified diet with nitrogen from urea, J. Dairy Sci. 59 (1976) 648-655.
  42. McAllister T.A., Hristov A.N., Beauchemin K.A., Rode L.M., Cheng, K.-J., Enzymes in ruminant diets, in: Bedford M.R., Partridge G.G. (eds.), Enzymes in Farm Animal Nutrition, CABI Publishing, 2001, pp. 273-278.
  43. Mir P.S., Mir Z., Robertson J.A., Effect of branched-chain amino acids or fatty acids supplementation on in vitro digestibility of barley straw or alfalfa hay, Can. J. Anim. Sci. 66 (1986) 151-156.
  44. Moharrery A., Study of enzymes (urease, cellulase, protease, amylase and lipase) activity in the rumen after incorporating isoacid, oil, urea and protein supplement in the rumen of sheep, Ph.D. thesis, University of Agricultural Sciences, Bangalore, India, 1999.
  45. Moharrery A., Das T.K., Afzali N., Effect of slow freezing on solubility of animal protein, Vol. II, Scientific proceedings, pp. 956-959. Second pan commonwealth veterinary conference. On Animal Health and Production In Rural Areas- The Essential Role of Women at all Levels, 22-27 Feb., 1998, Bangalore, India, 1998.
  46. Morgavi D.P., Newbold C.J., Beever D.E., Wallace R.J., Stability and stabilization of potential feed additive enzymes in rumen fluid, Enzym. Microbiol. Technol. 26 (2000) 171-177.
  47. NRC, Nutrient Requirements of sheep, Sixth revised edition, National Academy Press, Washington, D.C., 1985.
  48. Nugent J.H.A., Mangan J.L., Characteristics of the rumen proteolysis of fraction 1 (18S) leaf protein from lucerne (Medicago sativa L), Br. J. Nutr. 46 (1981) 39-58.
  49. Oser B.L., Hawk's Physiologyical Chemistry, 14th edition, TATA McGraw-hill Publishing Co. LTD, New Delhi, 1965, p. 1123.
  50. Pathak N.N., Kamra D.N., Jakhmola R.C., Analytical Techniques in Animal Nutrition Research, International Book Distributing Co., India, 1996, p. 201.
  51. Pollock Mr, Exoenzymes, in: Gunsalus I.C., Stainer R.Y. (Eds.), The Bacteria, Vol. 4, New York and London, Academic press Inc, 1962, p. 121.
  52. Prins R.A., Van Rheenen D.L., Van Klooster A.T., Characterization of microbial proteolytic enzymes in the rumen, Antonie Van Leeuwenhoek 49 (1983) 585-595.
  53. Ranjhan S.K., Animal Nutrition, in: The Tropics, Third revised edition, Vikas Publishing House, PVT, LTD, Delhi-India, 1993, p. 542.
  54. Reid J.T., Urea as a protein replacement for ruminants: A review, J. Dairy Sci. 36 (1953) 955-996.
  55. SAS, SAS user's guide: statistics, SAS Inst., Inc., cary, N.C., 1996.
  56. Satter L.D., Roffler R.E., Nitrogen requirement and utilization in dairy cattle, J. Dairy Sci. 58 (1975) 1219-1226.
  57. Slyter L.L., Oltigen R.R., Kern D.L., Weaver, J.M., Microbial species including ureolytic bacteria from rumen of cattle fed purified diets, J. Nutr. 94 (1968) 185-192.
  58. Smith R.H., in Digestion and Metabolism in: McDonald J.W., Warner A.C. (eds.), The Ruminant, Armidal, University of New England Press, 1975.
  59. Smith M.S., Bryant M.P., Introduction to metabolic activities of intestinal bacteria, A.M. J. Chin. Nutr. 32 (1979) 149-159.
  60. Soofi R., Fahey G.C., Berger L.L. Jr., Hingo F.C., Effect of branched chain volatile fatty acids, Trypticase, urea and starch on in vitro dry matter disappearance of soybean stover, J. Dairy Sci. 65 (1982) 1748-1753.
  61. Stack R.J., Hungate R.E., Opsahl W.P., Phenylacetic acid stimulation of cellulose digestion by Ruminococcus albus 8, Appl. Environ. Microbiol. 46 (1983) 539-545.
  62. Stern M.D., Hoover W.H., Methods for determining and factors affecting rumen microbial protein synthesis: A Review, J. Anim. Sci. 49 (1979) 1590-1603.
  63. Topps J.H., Elliott R.C., Relationship between concentration of ruminal nucleic acids and excretion of purine derivatives by sheep, Nature 205 (1965) 498-499.
  64. Wallace R.J., Synergism between different species of proteolytic rumen bacteria, Curr. Microbiol. 12 (1985) 59-64.
  65. Wallace R.J., Brammall M.L., The role of different species of bacteria in the hydrolysis of protein in the rumen, J. Gen. Microbiol. 131 (1985) 821-832.
  66. Wallace R.J., Cotta M.A., Metabolism of nitrogen-containing compounds, in: Hobson P.N. (ed.), The Rumen Microbial Ecosystem, Elsevier Applied Science, London, 1988, pp. 217-249.
  67. Zinn R.A., Owens F.N., A rapid procedure for purine measurement and its use for estimating net ruminal protein synthesis, Can. J. Anim. Sci. 67 (1986) 157-166.


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