scholarly journals Effect of adding polyethylene glycol and polyvinylpyrrolidone on organic matter digestibility, metabolizable energy and net energy for lactation of grape pomace using in vitro gas production technique

2010 ◽  
Vol 1 (1) ◽  
pp. 251-251 ◽  
Author(s):  
M Besharati ◽  
A Taghizadeh
Keyword(s):  
Organic Matter ◽  
Polyethylene Glycol ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Grape Pomace ◽  
Net Energy ◽  
Production Technique ◽  
In Vitro Gas Production ◽  
Organic Matter Digestibility

scholarly journals Effect of Tannin-Binding Agents (Polyethylene Glycol and Polyvinylpyrrolidone) Supplementation on In Vitro Gas Production Kinetics of Some Grape Yield Byproducts

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Maghsoud Besharati ◽  
Akbar Taghizadeh
Keyword(s):  
Polyethylene Glycol ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Grape Pomace ◽  
Randomized Design ◽  
In Vitro Gas Production ◽  
Binding Agents ◽  
Kinetics Of ◽  
Grape Yield

The effects of polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) on in vitro gas production characteristics, organic matter digestibility (OMD), and metabolizable energy (ME) contents of some grape yield byproducts were investigated. The gas production was recorded after 2, 4, 6, 8, 12, 16, 24, 36, and 48 h of incubation. The gas production profiles in triplicate fitted with equation Y = A (1 – ). The data was analyzed using completely randomized design. Total phenol (TP) and total tannin (TT) contents were highest for raisin waste (RW). The TP content (g/kg DM) ranged from 30.1 in grape pomace (GP) to 96.3 in RW, which also had the higher TT (72.1 g/kg DM). The potential gas production (a + b) of DGB, GP, and RW were 239.43, 263.49, and 208.22 mL/g DM, respectively. In the absence of PEG and PVP, rate constant of gas production (c) for GP was highest among the feedstuffs (0.1073 mL/h), but in presence of PEG or PVP, RW had highest fraction (c) among the feedstuffs. Addition of PEG and PVP inactivated effects of tannins and increased gas production, ME, NE1, OMD, and VFA in grape yield byproducts. Addition of PEG and PVP could overcome adverse effects of tannins on nutrient availability as indicated by gas production parameters.

Comparison of bovine rumen liquor and bovine faeces as sources of micro-organisms for the in vitro gas production technique for assessing silages of maize and maize plant fractions

1998 ◽  
Vol 1998 ◽  
pp. 60-60
Author(s):  
U.R. Altaf ◽  
R. Mauricio ◽  
F.L. Mould ◽  
T. Smith ◽  
E. Owen ◽  
...  
Keyword(s):  
Organic Matter ◽  
Gas Production ◽  
Maize Plant ◽  
Production Technique ◽  
Maize Silage ◽  
Bovine Rumen ◽  
In Vitro Gas Production ◽  
Organic Matter Digestibility ◽  
Micro Organisms

A previous study (Mauricio et al., 1998) with 12 forage substrates (straw, hay and dried grasses) showed a high correlation between rumen liquor and faeces for total gas production and in vitro organic matter digestibility (OMD). However parameters estimated using faecal inoculum were generally lower man when using rumen liquor. To confirm this observation, a second study was conducted using maize silage and silages made from maize plant fractions.

scholarly journals Estimation of chemical composition, in vitro gas production, metabolizable energy, net energy lactation values of different peanut varieties and line by Hohenheim in vitro gas production technique

2021 ◽  
Vol 42 (2) ◽  
pp. 907-920
Author(s):  
Tugay Ayasan ◽  
◽  
Ismail Ulger ◽  
Ayse Nuran Cil ◽  
Vincenzo Tufarelli ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Agricultural Research ◽  
Eastern Mediterranean ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Net Energy ◽  
Production Technique ◽  
Nutrient Contents ◽  
In Vitro Gas Production

This study was carried out to determine the nutritional value of some selected peanut varieties and line in the Eastern Mediterranean Agricultural Research Institute of Adana, Turkey. The peanut varieties used were Gazipasa, Sultan, NC7, Cihangir, and Halisbey; while the peanut line was DA335/2011. The chemical composition, metabolizable energy (ME), net energy lactation (NEL) and organic matter digestibility (OMD) of the selected peanut varieties and line were determined through Hohenheim in vitro gas production technique. Incubation times for Hohenheim gas production technique were 3, 6, 9, 12, 24, 48, 72 and 96 hours. The analysis of variance (General Linear Model) was carried out using the SPSS package program. The differences among groups in terms of nutrient contents were found to be significant (P<ou=0.05), except for dry matter (DM) and hemicellulose (HC). The highest crude protein (CP) (40.13%) was found in Sultan variety, while the crude oil (CO) content was found to be between 21.32 and 31.01%. The ADF, NDF, and ADL content of the peanut varieties and line were within the ranges of 2.32-7.91%, 4.85-9.88%, and 0.43-2.62%, respectively. Conversely, the Sultan variety had the highest crude cellulose (CC) value, Cihangir variety was determined to contain the highest hemicellulose (HC) value. The differences in 24 hour gas and methane production among different peanut varieties and line were found to be not-significant. (P > 0.05).

Nutritional evaluation of pulse screenings by in vitro gas production technique

2016 ◽  
Author(s):  
Partha Sarathi Swain ◽  
D. Srinivasa Rao ◽  
D. Nagalakshmi ◽  
M. Mahender ◽  
S. Ray
Keyword(s):  
Organic Matter ◽  
Andhra Pradesh ◽  
Gas Production ◽  
Metabolizable Energy ◽  
In Vitro Gas Production ◽  
Good Energy ◽  
Livestock Feeding ◽  
Organic Matter Digestibility ◽  
Sheep Rumen

The present study was planned to evaluate the chemical composition and nutritive values of commonly available pulse chunies of Green gram (GGC), Black gram (BGC), Bengal gram (BnGC) and Red gram (RGC) available in the local markets of Hyderabad, Andhra Pradesh. These chunies were subjected to chemical analysis followed by measurement of in vitro gas production (IVGP) with sheep rumen liquor. By calculation, in vitro organic matter digestibility (IVOMD), total digestible nutrient (TDN), Metabolizable Energy (ME) was determined. DM (P<0.001), CP (P<0.001), CF (P<0.001), TA (P<0.001), NDF (P<0.001), ADF (P<0.001), cellulose (P<0.01), hemicelluloses (P<0.001), lignin (P<0.01) silica (P<0.001) and Ca (P<0.05) varied significantly. The cumulative gas production in IVGP technique at 0-2, 0-4, 0-6, 0-8, 0-12 and 0-18h incubations varied significantly. The TDN and ME content were highest (P<0.01) in GGC. IVOMD (mg/24h) was comparable (P>0.05) among them. The study concluded that these chunies are good energy sources. GGC was the best with respect to its energy and organic matter digestibility among these. High protein and energy contents of BGC and GGC signified that these can be a good feed replacement of concentrates for livestock feeding.

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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