Effect of combination of vitamin-mineral supplementation and concentrate- to-roughage ratio diets on ruminal fermentation, gas kinetics and microbial biomass production using in vitro gas production technique

2021 ◽  
Vol 55 (5) ◽  
Keyword(s):  
Microbial Biomass ◽  
Biomass Production ◽  
Gas Production ◽  
Ruminal Fermentation ◽  
Production Technique ◽  
Mineral Supplementation ◽  
Gas Kinetics ◽  
In Vitro Gas Production

Ruminal fermentation and degradability of sorghum cultivar whole crop, and grains, using an in vitro gas production technique

2005 ◽  
Vol 123-124 ◽  
pp. 329-339 ◽  
Author(s):  
S.L.S. Cabral Filho ◽  
A.L. Abdalla ◽  
I.C.S. Bueno ◽  
E.F. Nozella ◽  
J.A.S. Rodrigues
Keyword(s):  
Gas Production ◽  
Ruminal Fermentation ◽  
Production Technique ◽  
In Vitro Gas Production

The use of the in vitro gas production technique to investigate the effect of substrate on the partitioning between microbial biomass production and the yield of fermentation products

1999 ◽  
Vol 1999 ◽  
pp. 36-36 ◽  
Author(s):  
C. Rymer ◽  
D.I. Givens
Keyword(s):  
Microbial Biomass ◽  
Biomass Yield ◽  
Negative Relationship ◽  
Poor Quality ◽  
Gas Production ◽  
The Other ◽  
Production Technique ◽  
Fermentation Products ◽  
In Vitro Gas Production

The in vitro gas production technique has been developed as a means of predicting the degradability of feeds. However, it was pointed out by Blümmel et al. (1997) that attention should be given to the other products of the incubation as well. Degraded feeds may be incorporated directly into microbial biomass, or they may be fermented to produce VFA and gas. One of the objectives of this experiment was to determine whether the proportion of degraded substrate that was partitioned to gas production varied with different feeds. Blümmel et al. (1997) observed a negative relationship between gas yield (ml gas produced/g substrate degraded) and microbial biomass yield (mg biomass/g substrate degraded) when poor quality forages were incubated. A second objective of this work was to determine whether this relationship was also observed when higher quality feeds were used.

Evaluating Effects of Natural Plant Extract on Ruminal Fermentation Using in vitro Gas Production Technique

2012 ◽  
Vol 11 (6) ◽  
pp. 561-565
Author(s):  
Mohammad Salamataza ◽  
Ramin Salamat Doust-Noba ◽  
Naser Maheri Sis ◽  
Habib Aghdam Shahryar ◽  
Yahya Asadi
Keyword(s):  
Plant Extract ◽  
Gas Production ◽  
Ruminal Fermentation ◽  
Production Technique ◽  
Natural Plant ◽  
In Vitro Gas Production

scholarly journals In vitro Gas Production, Methane Emission and Rumen Fermentation Characteristics with Increasing Roughage to Concentrate Ratios

2019 ◽  
Vol 28 (2) ◽  
pp. 27-36
Author(s):  
Samir Attia Nagadi Samir Attia Nagadi
Keyword(s):  
Microbial Biomass ◽  
Biomass Production ◽  
Methane Emission ◽  
Rumen Fermentation ◽  
Gas Production ◽  
Waste Products ◽  
In Vitro Gas Production ◽  
Balanced Distribution ◽  
Soluble Substrate

Effects of roughage to concentrate ratio on gas production (GP) and nutrient degradability were evaluated in vitro. Rations I: 0R:100C, II: 20R:80C, III: 40R:60C, IV: 60R:40C, V: 80R:20C and VI: 100R:0C were incubated for 24h. Concentrate (0R:100C) produced greater GP/gDM, TDOM and MCP. TDDM was higher for rations I to IV than V and VI. Roughage (100R:0C) had lower PF and higher pH and protozoal count with no VFA effect. Ration III and IV containing 60 and 40% concentrate, respectively exhibited balanced distribution of soluble substrate between microbial biomass production and fermentation waste products and are optimal for sheep nutrition.

scholarly journals Effects of exogenous enzymes on in vitro gas production kinetics and ruminal fermentation of four fibrous feeds

2013 ◽  
Vol 179 (1-4) ◽  
pp. 46-53 ◽  
Author(s):  
M.M.Y. Elghandour ◽  
A.Z.M. Salem ◽  
M. Gonzalez-Ronquillo ◽  
J.L. Bórquez ◽  
H.M. Gado ◽  
...  
Keyword(s):  
Gas Production ◽  
Ruminal Fermentation ◽  
Production Kinetics ◽  
In Vitro Gas Production ◽  
Exogenous Enzymes

Estimation of fermentable energy by the automatic in vitro gas production technique for a selection of feedstuffs incubated alone and in combination

1998 ◽  
Vol 1998 ◽  
pp. 69-69
Author(s):  
S. Fakhri ◽  
A. R. Moss ◽  
D.I. Givens ◽  
E. Owen
Keyword(s):  
Organic Matter ◽  
Incubation Period ◽  
Gas Production ◽  
Production Technique ◽  
In Vitro Gas Production ◽  
Fe Content ◽  
The Individual ◽  
Gas Volume ◽  
Selection Of

The gas production (GP) technique has previously been used to estimate the gas volume (fermentable energy (FE)) of compound feed ingredients for ruminants (Newbold et al., 1996). It was shown that the FE content of feed mixtures was represented by the combination of the total gas from the incubation of the individual feeds. However this additivity might not be consistent throughout the incubation period. The objectives were to test whether 1. other GP parameters give better estimates of FE for simple mixtures and are they additive; 2. whether organic matter apparently degraded in the rumen (OMADR) explain differences in GP; and 3. to find out if there are any other better measures than OMADR for estimating FE.

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