{"title":"Phosphorus Supplementation of Ammoniated Rice Straw on Rumen Fermentability, Syntesised Microbial Protein and Degradabilityin Vitro","authors":"Mardiati Zain, N. Jamarun, A. S. Tjakradidjaja","volume":41,"journal":"International Journal of Nutrition and Food Engineering","pagesStart":357,"pagesEnd":360,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/8898","abstract":"
The effect of phosphorus supplementation of ammoniated rice straw was studied. The in vitro experiment was carried out following the first stage of Tilley and Terry method. The treatments consisting of four diets were A = 50% ammoniated rice straw + 50% concentrate (control), B = A + 0.2% Phosphor (P) supplement, C = A + 0.4% Phosphor (P) supplement, and D = A + 0.6% Phosphor (P) supplement of dry matter. Completely randomized design was used as the experimental design with differences among treatment means were examined using Duncan multiple range test. Variables measured were total bacterial and cellulolytic bacterial population, cellulolytic enzyme activity, ammonia (NH3) and volatile fatty acid (VFA) concentrations, as fermentability indicators and synthesized microbial protein, as well as degradability indicators including dry matter (DM), organic matter (OM), neutral detergent fibre (NDF), acid detergent fibre (ADF) and cellulose. The results indicated that fermentability and degradability of diets consisting ammoniated rice straw with P supplementation were significantly higher than the control diet (P< 0.05). It is concluded that P supplementation is important to improve fermentability and degradability of rations containing ammoniated RS and concentrate. In terms of the most effective level of P supplementation occurred at a supplementation rate of 0.4% of dry matter.<\/p>\r\n","references":"[1] Van Soest, P.J. 2006. Rice straw the role of silica and treatment to\r\nimprove quality. J.Anim.Feed. Sci. and Technology Volume 130, pp.\r\n137-171.\r\n[2] Patterson, J. 2002.. Proc. 37th Pac NW Anim Nutr Conf. pp. 11-19.\r\n[3] Tilley, J. M., and R. A. Terry. 1969. A two stage technique for in vitro\r\ndigestion of forage crops. Journal of British Grassland Society 18 (2), pp\r\n104 - 111\r\n[4] AOAC. 1990. Official methods of analysis. 15th edn. Association of\r\nOfficial Analytical Chemists, Arlington, Virginia.\r\n[5] Goering, H.K. and Van Soest, P.J. 1970. Forage fiber\r\nanalysis(apparatus, reagents, procedure and some applications. In:\r\nUnited`States Department of Agricultural (Ed), Agricultural Handbook,\r\n379. US government printing Office, Washinggton D.C., pp 1-20\r\n[6] Suryahadi. 1990. Penuntun praktikum Ilmu Nutrisi Ruminansia. Pusat\r\nAntar Universitas Ilmu Hayat. IPB. Bogor\r\n[7] Widyastuti, A.T. 2005. Isolasi dan uji kemampuan bakteri simbion\r\nrayap pendegradasi serat. Skripsi. Fakultas Peternakan. Institut Pertanian\r\nBogor.\r\n[8] Gopar, A.H., 1981. Pengaruh perubahan laju penggantian isi rumen\r\nterhadap kegiatan metabolisme mikrobanya dalam kondisi in vitro.\r\nSkripsi. Fakultas Peternakan. Institut Pertanian Bogor.\r\n[9] Steel, R.G.D. and J.H. Torrie. 1980. Principles and Procedure of\r\nStatistics. McGraw-Hill Book Co. Inc. New York.\r\n[10] Komizarczuk, S., and Durand M. 1991. Effect of mineral on microbial\r\nmetabolism. In. Rumen Microbial Metabolism and Ruminant Digestion.\r\nJ.P. Jouany (Ed) INRA publ. Versailes, France\r\n[11] Bravo, D., D. Sanvant, C. Bogaert and F. Meschy. 2003. Quantitative\r\naspect of phosphorus absorbtion in ruminant. Reprod. Nutr. Dev. 43:\r\n271-284. INRA. EDP. Sciences.\r\n[12] Durand, M. and R. Kawashima. 1980. Influence of minerals in rumen\r\nmicrobial digestion. In: Ruckebush and Thivend (eds): Digestive\r\nPhysiology and Metabolism in Ruminants. MTP Press, Ltd., Lancaster,\r\nEngland. Pp 375-408.\r\n[13] Rodehutscord, M. Heuvers, H. Pfeffer, 2000. Effect of organic matter\r\ndigestibility on obligatory faecal phosphour loss in lactating goats,\r\ndetermined from balance data. Anim. Sci. 70: 561-568.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 41, 2010"}