scholarly journals Produk Fermentasi Rumen dan Produksi Protein Mikroba Sapi Lokal yang Diberi Pakan Jerami Amoniasi dan Beberapa Bahan Pakan Sumber Energi

2011 ◽  
Vol 11 (2) ◽  
pp. 29-34 ◽  
Author(s):  
Novita Hindratiningrum ◽  
Muhamad Bata ◽  
Setya Agus Santosa

Products of rumen fermentation and protein microbial of dairy cattle feed with rice bran ammonization and some feedstuffs as an energy sourcesABSTRACT. This study aims to examine the energy sources of feed ingredients that can increase the production of Volatile Fatty Acids (VFA), N-NH3, microbial protein synthesis, total gas production and metabolic energy. The material used is as a source of rumen fluid inoculum from Frisian Holstein cows (FH) females, amoniasi rice straw, salt, mineral mix brand "Ultra Minerals' production Eka Farma Semarang, onggok wet and dry, corn, and rice bran. Observed variable is the concentration of (VFA), N-NH3, rumen microbial protein synthesis, and total gas production. Based on the analysis of diversity seen any significant effect (P0.05) on total VFA concentration, N-NH3 and total gas but had no effect (P0.05) on microbial protein synthesis. Conclusion of research is the provision of energy sources with rice bran treatment, onggok wet and dry corn flour can be used as fermentable carbohydrates on feed hay amoniasi in vitro.

Pastura ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 47
Author(s):  
Afduha Nurus Syamsi ◽  
Fransisca Maria Suhartati ◽  
Wardhana Suryapratama

An experiment was aimed to assess the use of the legume leaf as a source of protein feedstuff and levels of synchronization protein-energy (SPE) index in the diet of cattles on ammonia (N-NH3) and microbial protein synthesis (MPS). In vitro techniques was done. The research was used a completely randomized design (CRD), with factorially pattern (2x3), the first factor was the two species of legume (Sesbania leaves and Leucaena leaves) and the second factor was the three level of the SPE index (0.4, 0.5, and 0.6), there were 6 treatment combinations and each was 4 replicates. The results showed that no interaction between legume with SPE index, but each factor was significantly effect (P<0.05) on N-NH3 of rumen fluid and MPS. The research concluded that Leucaena leaf is a legume that is better than Sesbania leaf in terms of their ability toincrease MPS. SPE index is the best in producing MPS at level 0.6. Key words: Legume, synchronization of protein and energy index, ammonia, microbial protein synthesis


2001 ◽  
Vol 2001 ◽  
pp. 151-151 ◽  
Author(s):  
M. J. Ranilla ◽  
S. López ◽  
M. D. Carro ◽  
R. J. Wallace ◽  
C. J. Newbold

The efficiency and rate of microbial protein synthesis in the rumen depend on several factors, of which the chemical and physical properties of the plant fibre are among the most important. Estimation of microbial yield and fermentation rate can be obtained from in vitro experiments, which combine gas production and substrate degradability measurements and/or use microbial markers. The aim of this study was to investigate the effect of different fibre sources on microbial protein synthesis in a batch culture system in vitro.


2000 ◽  
Vol 84 (1) ◽  
pp. 73-83 ◽  
Author(s):  
G. Getachew ◽  
H. P. S. Makkar ◽  
K. Becker

Determination of microbial degradability of N is important in formulating a sound supplementation strategy for efficient utilisation of basal as well as supplementary diet components. In vitro degradability of N (IVDN) from tannin-containing browses (Acacia cyanophylla, Acacia albida, Acioa barteri and Quercus ilex) and two herbaceous legumes (Desmodium intortum andDesmodium uncinatum) was determined using the in vitro gas-production method coupled with NH3-N measurement in the presence and absence of a tannin-binding agent (polyethylene glycol (PEG), molecular mass 6000). Addition of PEG to tannin-containing feeds significantly (P < 0·05) increased in vitro gas and short-chain fatty acid (SCFA) production, and IVDN. The use of PEG as a tannin-binding agent increased IVDN from 28 to 59, 32 to 72, 19 to 40, 32 to 73, 40 to 80, and 26 to 77 % in A. cyanophylla, A. albida, A. barteri, D. intortum,D. uncinatum and Q. ilexrespectively. There was significant correlation between total phenolic compounds (total phenol, TP; total tannin, TT) in leguminous forages and percentage increase in IVDN on addition of PEG (P < 0·05; R2 0·70 and 0·82 for TP and TT respectively). The difference in IVDN observed in the absence and presence of PEG indicates the amount of protein protected from degradation in the rumen by tannins. When measured after 24 h incubation, tannin-containing feeds incubated in absence of PEG resulted in higher microbial protein synthesis than in the presence of PEG. Addition of PEG significantly (P < 0·05) reduced the efficiency of microbial protein synthesis expressed as μmol purine/mmol SCFA.


2022 ◽  
Vol 335 ◽  
pp. 00029
Author(s):  
Arya Dwi Saputra ◽  
Kusmartono Kusmartono ◽  
Mashudi Mashudi ◽  
Poespitasari Hazanah Ndaru

This study was conducted to evaluate the effects of different levels of protein sources in a concentrate cassava peel diet on volatile fatty acid (VFA) concentration and efficiency of microbial protein synthesis (EMPS) by in vitro method. The five diet treatments in this study consisted of cassava meal (CM), cassava peel (CP), cassava leaves (CL) and moringa leaves (ML) with the proportion applied were T1=CM70% + CP20% + CL5% + ML5%; T2=CM60% + CP20% + CL10% + ML10%; T3=CM50% + CP20% + CL15% + ML15%; T4=CM40% + CP20% + CL20% + ML20%; T5=CM30% + CP20% + CL25% + ML25%. The experiment used a randomized block design with five treatments and three replications. The results showed that increasing the level of protein sources in the ration tended to increase the value of total VFA, acetate, propionate, CO2, and CH4 in which T3 had the highest values. However, the effect of treatments were significant in EMPS value (P<0.01). It was concluded that increasing levels of cassava and moringa leaves in the concentrate cassava peel diet tended to increase the value of total VFA, acetate, propionate, butyrate, CO2, and CH4 which led to a significant increase in EMPS values.


2014 ◽  
Vol 54 (8) ◽  
pp. 1039 ◽  
Author(s):  
R. Rodríguez ◽  
G. de la Fuente ◽  
S. Gómez ◽  
M. Fondevila

The biological effect of tannins (proportion of the response in different parameters when tannins were inactivated with polyethylene glycol, PEG) as an easy, rapid way to estimate the magnitude of their effect on rumen microbial fermentation, was estimated in vitro for the tropical browse legumes Albizia lebbekoides, Acacia cornigera and Leucaena leucocephala, which differ in their phenolic and tannin content. Samples were incubated in rumen fluid for 24 h in four runs. The inactivation by PEG of tannins from A. lebbekoides increased gas production from 1.62- to 2.83-fold, with this biological effect increasing up to 8 h incubation, then being maintained and increasing after 16 h. In A. cornigera and L. leucocephala, the magnitude of the improvement of gas production was lower (from 1.1- to 1.32-fold and from 1.29- to 1.56-fold) and constant. The inclusion of PEG increased total volatile fatty acids (VFA) concentration (P = 0.019), reduced the molar proportion of acetate (P < 0.001) and increased that of butyrate (P < 0.001) and branched-chain VFA (P < 0.001). Microbial protein mass in A. lebbekoides increased with PEG in a higher extent (P < 0.001) than in L. leucocephala, but it was reduced in A. cornigera. No biological effect was observed on the efficiency of microbial protein synthesis when it was related to VFA concentration (P > 0.10), but when related to the gas produced it was lowest with A. lebbekoides (P = 0.023). The biological effect of tannins, either in total extent or along the incubation period differed according to their origin. Irrespective of their amount or chemical nature, the biological effect gives a direct idea of how tannins affect both the extent and pattern of forages fermentation.


Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1266
Author(s):  
Michelle Siqueira ◽  
Juana Chagas ◽  
João Paulo Monnerat ◽  
Carolina Monteiro ◽  
Robert Mora-Luna ◽  
...  

This study evaluated the effect of different roughages fed to sheep on nutrient and water intake, ingestive behavior, nitrogen balance, microbial protein synthesis, fermentation parameters, and methane production using an in vitro gas production system. The treatments consisted of five diets: cactus cladodes Nopalea (NUB) and Opuntia (OUB), both with the addition of sugarcane bagasse (SB) and urea/ammonium sulfate (urea/as); Tifton hay (TH); corn silage (CS); and sorghum silage (SS), also with added urea/as. The NUB provided greater (p ≤ 0.03) intakes of dry matter (1024 g/d), digestible organic matter (670 g/d), and crude protein (161 g/d) than those on the SS. The NUB provided greater (p < 0.01) dietary water intake (3023 g/d) than TH. The time spent on rumination was shorter (p < 0.01), and the idle time was longer in animals fed NUB and OUB than TH and CS. Microbial protein synthesis was not affected (p = 0.27). The final pH (6.4) of the incubation fluid and the concentration of NH3-N (39.05 mg/dL) were greater for NUB and OUB. Ruminal parameters and methane production were little or not affected by tested forages. We recommend using cactus cladodes in combination with sugarcane bagasse and urea/as in sheep diets.


2015 ◽  
Vol 95 (4) ◽  
pp. 577-588 ◽  
Author(s):  
Á. R. Alfonso-Ávila ◽  
E. Charbonneau ◽  
C. Lafrenière ◽  
R. Berthiaume

Alfonso-Ávila, Á. R., Charbonneau, E., Lafrenière, C. and Berthiaume, R. 2015. Effect of glycerol in combination with alfalfa on in vitro gas production and microbial protein synthesis. Can. J. Anim. Sci. 95: 577–588. This study sought to determine the effect of added glycerol on microbial protein synthesis, ruminal degradation and utilization of alfalfa at different concentrations of nonstructural carbohydrates (NSC), using in vitro gas production. The 2×3 factorial plus one treatment consisted of oven-dried alfalfa with two NSC levels [high: 17.9 (HNSC) or low: 7.4% dry matter (DM) (LNSC)] and three glycerol treatments [control without glycerol, 15% crude glycerol (CG) and 15% pure glycerol (PG)], the additional treatment was LNSC+exogenous sugars (LNSC+ES: LNSC with 5% sucrose+5% starch). Five pre-planned contrasts were evaluated from the seven treatments: (1) HNSC vs. LNSC alfalfa; (2) with glycerol vs. without; (3) interaction of alfalfa and glycerol; (4) CG vs. PG, and; (5) LNSC+ES vs. HNSC. Gas production over 24 h was higher for HNSC than LNSC (202 vs. 179 mL g−1 DM) and with glycerol than without glycerol (202.2 vs. 168 mL g−1 DM). A decrease in the acetate:propionate ratio was observed for HNSC compared with LNSC (2.87 vs. 3.27) and for the addition of glycerol vs. no glycerol (2.78 vs. 3.65). Reduced microbial mass (185.5 vs. 240.5 mg g−1 DM) was observed for CG compared with PG. The LNSC+ES treatment had lower microbial protein synthesis and propionic acid production in relation to HNSC. No significant interaction was observed between the effect of NSC content of alfalfa and glycerol utilization. When effects were studied separately, results indicate that increasing NSC in alfalfa stimulates the synthesis of microbial protein. Also, the addition of glycerol promotes the synthesis of glucose precursors. Finally, the type of glycerol has an impact on results obtained suggesting caution when extrapolating results for PG to CG.


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