Perbandingan Potensi Daun Ketepeng dan Minyak Ikan Lemuru sebagai Agensia Reduksi Metan dalam Memperbaiki Kualitas Pakan Ternak Ruminansia

Susi Dwi Widyawati

Abstract


The research was done to study the potential of ketepeng leaf meal and lemuru fish oil as agents to reduce methane production. The composition of feed supplements, lamtoro leave meal (LLM), urea (U) and mollases (M) were in different ratios: 1:5, 1:6 and 1:7 and ketepeng leaf meal (DKM) and lemuru fish oil (MIL). The feed supplement was added to the native grass as a basal diet, P1: U: M = 1:5, DKM, P2: U: M = 1:5, MIL, P3: U: M = 1:6, DKM, P4: U: M = 1:6, MIL, P5: U: M = 1:7, DKM, P6: U: M = 1:7, MIL. Research was done with in vitro gas technique. Inoculum was taken from rumen fluid of a fistulated male cow, which was taken before feeding in the morning. Rumen fluid pH did not significantly different, indicating the microbial fermentation in rumen run well and normally were not affected by the treatment. The VFA production of P5 and P6 was significantly lower than P1, P2, P3 and P4 (P <0.05). Production of C2 and C3 were relatively the same except for P6 (P <0.05) which relative higher. Ratio of C2/C3 and inversely related C3, when C3 production increased the C2/C3 ratio decreased (P <0.05). Methane production of P6 was higher but did not different with P4 and P5. It can be concluded that diet which produced low methane was the native grass supplemented with urea and molases at ratio 1: 5 contained either ketepeng leaf meal or lemuru fish oil.


Key
words: native grass, supplement, ketepeng leaf meal, lemuru fish oil, methane  production.


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References


Association of Official Analysis Chemist. 1980. Official methods of analysis of the Association of Official Analytical Chemist. 13th ed. Association of Official Analytical Chemist, Washington, DC.

Beuvink, J.M.W., and J. Kogut. Modeling gas production kinetics of grass silages incubated with buffered ruminal fluid. J. Anim. Sci. 71 : 1041 – 1046.

Blümmel, M., and E.R. Ørskov. 1993. Comparison of in vitro gas production and nylon bag degradability of roughages in predicting feed intake in cattle. Animal Feed Scinece ant Technology, 40 : 109 – 119.

Doane, P.H., P. Schofield, and A.N. Pell. 1997. Neutral detergent fiber disappearance and gas and volatile fatty acid production during the in vitro fermentation of six forages. J. Anim. Sci. 75 : 3342 – 3352.

Erwanto. 1995. Optimalisasi System Fermentasi Rumen Melalui Suplementasi Sulfur, Defaunasi, Reduksi Emisi Metan Dan Stimulasi Pertumbuhan Mikroba Pada Ternak Ruminansia. Disertasi. Program Pascasarjana, IPB Bogor.

Liu, J.X., A.Susenbeth, and K.H. Südekum. 2002. In vitro gas production measurements to evaluate interaction between untreated and chemically treated rice straw, grass hay, and mulberry leaves. J. Anim. Sci. 80 : 517 – 524.

McDonald, P., R.A. Edward and J.F.D. Greenhalgh. 1988. Animal Nutrition. 4th edition. English Language Book Society, Longman, London.

Schofield, P., R.E. Pitt, and A.N. Pell. 1994. Kinetics of fiber digestion from in vitro gas production. J. Anim. Sci. 72 : 2980 – 2991.

Schofield, P. 2000. Gas Production Methods. In: Farm Animal Metabolism and Nutrition. Edited by J.P.F. D’Mello. CABI Publishing, New York, USA.

Sunarso. 1984. Mutu Protein Limbah Agro_Industri Ditinjau dari Kinetika Perombakannya oleh Mikroba Rumen dan Potensinya dalam Menyediakan Protein Bagi Pencernaan Pasca Rumen. Thesis. Program Pasca Sarjana, IPB. Bogor.

Sutardi, T. 1978. Ikhtisar Ruminologi. Dept. Ilmu Makanan Ternak, Fakultas Peternakan IPB. Bogor.

Sutardi, T. 1993. Peningkatan Produksi Ternak Ruminansia melalui Amoniasi Pakan Bermutu Rendah, Defaunasi dan Suplementasi Sumber Protein Tahan Degradasi Rumen. Laporan Penelitian Hibah Bersaing I/1. Fakultas Peternakan IPB. Bogor.

Widyobroto BP., SPS. Budhi, A. Agus and B. Santosa. 1999. Effect of undegraded protein level on nutrient digestibility and microbial protein synthesis of dairy cows. In : Lobley GE, A. White and JC. MacRae. (Ed). Protein metabolism and nutrition. Book of abstracts of the VIIIth International Symposium on Protein and Metabolism. P. 72. EAAP publication Wageningen Holland.




DOI: http://dx.doi.org/10.20961/sainspet.v7i1.1004

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