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Journal : Jurnal Ilmu Ternak Veteriner

Methane production and energy partition in sheep fed timothy silage- or hay-based diets Santoso, B; Mwenya, B; Sar, C; Takahashi, J
Indonesian Journal of Animal and Veterinary Sciences Vol 12, No 1 (2007)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.729 KB) | DOI: 10.14334/jitv.v12i1.561

Abstract

Methane is produced as a result of anaerobic fermentation of the soluble and structural carbohydrates by methanogens in the rumen of ruminant animals. Removal of methane from rumen represents a loss of approximately 7.22% of gross energy intake.  Four ruminally fistulated Cheviot wethers were used in a crossover design to determine methane production and energy partition in sheep fed timothy silage- or hay-based diets. The experimental diets consisted of either timothy silage or timothy hay and a commercial concentrate (85:15, on DM basis). Variables measured were nutrients digestibility, energy balance and methane production. Apparent digestibilities of DM, OM, CP, NDF, ADF, cellulose and hemicellulose were significantly higher (P<0.05) on sheep fed silage-based diet than those fed hay-based diet. Sheep fed silage-based diet had greater (P<0.01) urinary energy loss, methane and heat production, but lower (P<0.05) fecal energy loss. Methane production, either expressed as g kg-1 dry matter intake or g day-1 was markedly lower (P<0.05) in hay-based diet as compared to silage-based diet. There was a strong relationship between methane production (g day-1) and NDF digested (g day-1) (R2 = 88.4%, P<0.001). Methane production expressed as g kg-1 NDF digested in silage-based diet was higher (P<0.05) than in hay-based diet (66.44 vs 62.70). These results indicate that methane release by sheep increased with increasing NDF digested. Key Words : Methane, Silage, Hay, Neutral detergent fiber, Sheep
Fermentation quality and nutritive value of rice crop residue based silage ensiled with addition of epiphytic lactic acid bacteria Santoso, B; Hariadi, B.Tj.; ., Alimuddin; Seseray, D.Y.
Indonesian Journal of Animal and Veterinary Sciences Vol 16, No 1 (2011)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.211 KB) | DOI: 10.14334/jitv.v16i1.628

Abstract

Silage is the feedstuff resulted from the preservation of forages through lactic acid fermentation. The aim of this study was to evaluate nutritive value, fermentation characteristics and nutrients digestibility of rice crop residue based silage ensiled with epiphytic lactic acid bacteria (LAB). The mixture of rice crop residue (RC), soybean curd residue (SC) and cassava waste (CW) in a 90: 5: 5 (on dry matter basis) ratio was used as silage material.  Three treatments silage were (A) RC + SC + CW as a control; (B) RC + SC + CW + LAB inoculums from rice crop residue; (C) RC + SC + CW + LAB inoculums from king grass.  Silage materials were packed into plastic silo (1.5 kg capacity) and stored for 30 days. The results showed that crude protein content in B and C silage was higher than that of silage A, but NDF content in silages B and C was lower than that of silage A.  Lactic acid concentration was higher (P < 0.01) in silage C compared to silage B and A, thus pH value of silage C was lower (P < 0.01) than silage B and A. Silage C had the highest Fleigh point than that of other silages. Dry matter and organic matter digestibilities were higher in silages B and C (P < 0.01) than that of control silage. It was concluded that the addition of LAB inoculums from king grass to rice crop residue based silage resulted a better fermentation quality compared to LAB inoculums from rice crop residue. Key Words: Silage, Rice Crop Residue, Lactic Acid, In Vitro
Quality evaluation of signal grass (Brachiaria brizantha) ensiled with forage as tannin source Santoso, B; Hariadi, B. Tj
Indonesian Journal of Animal and Veterinary Sciences Vol 13, No 3 (2008)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (84.475 KB) | DOI: 10.14334/jitv.v13i3.582

Abstract

This research focused on examining the possibility of using three kinds of plant leaves i.e. Acacia mangium Willd, Persea americana Mill and Psidium guajava as tannin source to signal grass (Brachiaria brizantha) silage. The silages were made from the first cut of signal grass harvested at 50 days. Four treatment silages were TA: grass ensiled without tannin as control, AM: grass ensiled with A. mangium (6 g tannin /kg fresh weight), PA: grass ensiled with P. americana (6 g tannin /kg fresh weight), and PG: grass ensiled with P. guajava (6 g tannin/kg fresh weight). After mixing, the materials were packed into glass bottle silos (225 g capacity), in triplicate, which were ensiled for 30 days. The results showed that dry matter, organic matter and crude protein concentrations in signal grass silage mixed with tannin of A. mangium were higher (P<0.01) compared to other silages. Degradations of dry matter, organic matter and crude protein during ensiling were the lowest in silage with A. mangium tannin additive. This data was supported by good fermentation quality of that silage e.g. low pH value, NH3-N and VFA concentrations, and high lactic acid concentration and Fleigh point as compared to other silages.  It is concluded that addition of tannin from A. mangium leaf at rate of 6 g/kg fresh weight improved fermentation quality and has potential as protein protection agents during the ensilage of signal grass. Key Words: Fermentation, Silage, Tannin, Signal Grass