Variation In Metabolizable Energy Content of Forages Estimated Using in vitro Gas Production Technique

2004 ◽  
Vol 7 (4) ◽  
pp. 601-605 ◽  
Author(s):  
A. Kamalak . ◽  
O. Canbolat . ◽  
Y. Gurbuz . ◽  
O. Ozay . ◽  
E. Ozkose .
Keyword(s):  
Energy Content ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Production Technique ◽  
In Vitro Gas Production

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).

scholarly journals Estimation of Organic matter digestibility and metabolizable energy content of Agro-industrial wastes using in vitro gas production

2021 ◽  
Vol 32 (1) ◽  
pp. 79-87
Author(s):  
E. M. Aregheore ◽  
S. A. Abdulrazak
Keyword(s):  
Organic Matter ◽  
Wheat Bran ◽  
Energy Content ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Industrial Wastes ◽  
Nutrient Contents ◽  
In Vitro Gas Production ◽  
Animal Feedstuffs

Organic matter (OM), neutral detergent fibre (NDF) digestibilities and metabolizableenergy content of some available agro-chemicals wastes (AIW) such as dry brewer's grain cocoa shell, cocoa dust, dessicated cocnut waste meal, wheat bran and rice bran used as ruminant feeds were setimated from in vitro gas production technique. Their crude protein (CP) content varieted from 13.7-25.6%, NDF ranged from 21.9-48.4% Om from 88.6-95.4% and non structural carbohydrates (NSC) estimates increased from 7.2 - 45.6%. Dessicated coconut waste meal(DCWM) had the lowest NSC content. Nutrient contents varied among AIW. Net gas production ranged from 7.7-23.1 ml/day and significant differences (P<0.05) were observed among the AIW in net gas production. The lowest and highest gas productions were obtained in cocoa dust (CD) and wheat bran (WB) respectively. Om digestibility  also had higher ME values showed significantly the differences between the AIW. AIW with high OM digestibility also had higher ME values. Finally the investigation demonstrated that available AIW in the pacific Island countries have potential as animal feedstuffs

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.

scholarly journals The nutritional evaluation of forage-based mixed rations in New Zealand using an in vitro gas production technique. 1: analytical survey

2021 ◽  
pp. 1-6
Author(s):  
N.D. Meads ◽  
R. Tahmasbi ◽  
N. Jantasila
Keyword(s):  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Environmental Science ◽  
Ghg Emissions ◽  
Negative Relationship ◽  
Real Data ◽  
Gas Production ◽  
Production Technique ◽  
In Vitro Gas Production

Greenhouse gas (GHG) emissions from livestock are an important consideration in environmental science. Estimating GHG production can be problematic at a farm or animal level, and requires controlled conditions to produce real data. An in vitro gas production technique (IVGPT) was developed to evaluate forage-based total mixed rations in digestion kinetics and GHG production. Two hundred and sixty samples of complete mixed rations (MR), which included a pasture component used in commercial lactating dairy herds, were collected around NZ across three calendar years, 2017-2019. Twenty of the 260 samples were 100% total mixed rations (TMR) with no pasture content. The samples were submitted for proximate analysis as well as IVGPT to generate GHG production figures. The results showed an average total gas production (TGP) of 129.82 ml/g dry matter (DM), 78.6% true digestibility (TDMD), 125.06 mg/g DM microbial biomass (MB), 20.16 g CH4/kg DM, and 12.8 MJME/kg DM. The average nutrient composition was dry matter (DM) 31.55%, crude protein (CP) 21.85%, neutral detergent fibre (NDF) 44.35%, and starch 7.03%. The IVGPT CH4 production was negatively correlated to NDF (r=-0.312), ADF (r=-0.193), TGP (r=-0.216), and was positively correlated with TDMD (r=0.250), apparent digestibility (ADMD) (r=0.614), starch (r=0.117) and volatile fatty acids (r=0.538). The MR diet showed a strong positive relationship with ADMD digestibility (P=0.01) and a negative relationship with fibre content (NDF, P=0.01 and ADF, P=0.01). However, CH4 production reduced linearly with increasing TGP (P=0.01). The results indicated that a greater CH4 production may be related to higher digestibility of mixed ration.

PSI-9 Digestibility and metabolizable energy content of supplemented diets based on native shrubs and buffelgrass for small ruminants in northeastern Mexico

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 275-276
Author(s):  
Víctor Manuel Perrusquía Tejeida ◽  
Nydia Corina Vásquez Aguilar ◽  
Humberto González Rodríguez ◽  
Hugo Bernal Barragán ◽  
Fernando Sánchez Dávila ◽  
...  
Keyword(s):  
Energy Content ◽  
Artificial Saliva ◽  
Small Ruminants ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Acacia Farnesiana ◽  
Dry Matter Digestibility ◽  
Northeastern Mexico ◽  
Native Shrubs

Abstract The objective of this study was to evaluate the effect of supplementing 10% of sorghum grain (SG), soybean meal (SBM) or dried citrus pulp (DCP) upon dry matter digestibility (DMD), organic matter digestibility (OMD), and metabolizable energy content (ME) of diets based on dried leaves of two shrub species (Acacia farnesiana and Acacia rigidula) and one grass (Cenchrus ciliaris) browsed by small ruminants. Twelve experimental diets were elaborated using three forage sources: C. ciliaris, A. farnesiana and A. rigidula and evaluated either alone (0% supplementation) or supplemented with 10% of SG (9.0% CP, 22.3% NDF), SBM (42.8% CP, 16.3% NDF) or DCP (4.9% CP, 19.1% NDF). In vitro DMD (Daisy incubator, ANKOM) at 48 h, and in vitro gas production (GP, in calibrated 100 mL glass syringes) at 24 h, were determined by incubating samples in an inoculum prepared by using rumen liquor of two rumen fistulated sheep and artificial saliva in a 1:4 ratio. OMD and ME content were calculated from the gas production, crude protein, ash, and ether extract content. Data were evaluated according to a 3 x 4 factorial experiment. There were no significant (P &gt; 0.05) forage source x supplement interaction effects. Leaves of A. farnesiana had higher (P &lt; 0.05) DMD (64%), GP (26 mL), ME (1910 kcal ME/kg DM), and OMD (53%) than other forages (mean 47% DMD, 17 mL GP, 1232 kcal ME/kg DM, and 39% DMO). Supplements increased (P &lt; 0.05) DMD (average +8%), but only DCP increased (P &lt; 0.05) the GP (+23%) of evaluated forages. Leaves of A. farnesiana had higher DMD (P &lt; 0.05; 64%). There were no effects (P &gt;0.05) of the 10% added supplements in ME content or DMO. In conclusion, leaves of A. farnesiana and DCP are valuable sources of nutrients and energy for small ruminants in northeastern Mexico.

Nutritional Evaluation of non Forage High Fibrous Tropical Feeds for Ruminant Using in vitro Gas Production Technique

2005 ◽  
Vol 4 (5) ◽  
pp. 298-303 ◽  
Author(s):  
Songsak Chumpawadee . ◽  
Kritapon Sommart . ◽  
Thevin Vongpralub . ◽  
Virote Pattarajinda .
Keyword(s):  
Gas Production ◽  
Production Technique ◽  
Nutritional Evaluation ◽  
In Vitro Gas Production
Sign in / Sign up

Export Citation Format

Share Document