scholarly journals Chemical Composition, In vitro Gas Production, Ruminal Fermentation and Degradation Patterns of Diets by Grazing Steers in Native Range of North Mexico

2012 ◽  
Vol 25 (10) ◽  
pp. 1395-1403 ◽  
Author(s):  
M. Murillo ◽  
E. Herrera ◽  
F. O. Carrete ◽  
O. Ruiz ◽  
J. S. Serrato
Keyword(s):  
Chemical Composition ◽  
Gas Production ◽  
Native Range ◽  
Ruminal Fermentation ◽  
In Vitro Gas Production

scholarly journals The Reduction of Methane Production in the In Vitro Ruminal Fermentation of Different Substrates is Linked with the Chemical Composition of the Essential Oil

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 786 ◽  
Author(s):  
Florencia Garcia ◽  
Darío Colombatto ◽  
M. Alejandra Brunetti ◽  
M. José Martínez ◽  
M. Valeria Moreno ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Methane Production ◽  
Gas Production ◽  
Feed Additives ◽  
Slight Reduction ◽  
Ruminal Fermentation ◽  
Oxygenated Compounds ◽  
In Vitro Gas Production ◽  
Different Characteristics

There is interest in identifying natural products capable of manipulating rumen microbial activity to develop new feed additives for ruminant nutrition as a strategy to reduce methane. Two trials were performed using the in vitro gas production technique to evaluate the interaction of substrate (n = 5) and additive (n = 6, increasing doses: 0, 0.3, 3, 30, and 300 µL/L of essential oils—EO—of Lippia turbinata or Tagetes minuta, and monensin at 1.87 mg/L). The two EO utilized were selected because they differ markedly in their chemical composition, especially in the proportion of oxygenated compounds. For both EO, the interaction between the substrate and additive was significant for all variables; however, the interaction behaved differently for the two EO. Within each substrate, the response was dose-dependent, without effects at a low level of EO and a negative outcome at the highest dose. The intermediate dose (30 µL/L) inhibited methane with a slight reduction on substrate digestibility, with L. turbinata being more effective than T. minuta. It is concluded that the effectiveness of the EO to reduce methane production depends on interactions between the substrate that is fermented and the additive dose that generates different characteristics within the incubation medium (e.g., pH); and thus, the chemical nature of the compounds of the EO modulates the magnitude of this response.

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

scholarly journals Kinetics in vitro of ruminal fermentation of cocoa husks subjected to alkali and heat treatment

2015 ◽  
Vol 36 (6) ◽  
pp. 3897
Author(s):  
Flávio Moreira de Almeida ◽  
José Augusto Gomes Azevêdo ◽  
Ícaro Dos Santos Cabral ◽  
Luiz Gustavo Ribeiro Pereira ◽  
Gherman Garcia Leal de Araújo ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Alkali Treatment ◽  
Alkaline Treatment ◽  
Gas Production ◽  
Ruminal Fermentation ◽  
Thermal Methods ◽  
Final Volume ◽  
In Vitro Gas Production ◽  
Efficient Alternative

The objective was to evaluate the parameters of kinetics of ruminal fermentation of cocoa husks (CH) treated with alkali and thermal agents, using the semi-automated in vitro gas production technique. Cocoa husks samples were subjected to alkali and thermal methods (effect of time of exposure) treatment, as follows: control; alkaline treatment with calcium hydroxide ((Ca(OH)2) and calcium oxide (CaO), both doses of 15.0; 30.0 and 45.0 g kg-1 of CH; heat treatment in an autoclave at a pressure of 1.23 kg cm-2 (15 psi) and a temperature of 123°C for 30, 60 and 90 minutes. For statistical analysis, orthogonal contrasts and regression. The degradation rate and the final volume of gases of non-fiber carbohydrates decreased with the addition of Ca(OH)2 and CaO, however, for fibrous carbohydrates effects were positive. For each percentage of Ca(OH)2 and CaO included, it is estimated an increase of 5.74 and 2.9% in the final volume of the fiber, respectively. When the heat treatment, a decrease in all parameters was estimated. For each minute of exposure to heat, there was a decrease of 0.4% in total final volume of gases. The alkali treatment can be an efficient alternative for improving the digestibility of fibrous fractions of CH.

Preliminary Studies on Spent Tea Leaf: In vitro Gas Production as Affected by Chemical Composition and Secondary Metabolites

2006 ◽  
Vol 5 (5) ◽  
pp. 497-500 ◽  
Author(s):  
O.J. Babayemi . ◽  
R.A. Hamzat . ◽  
M.A. Bamikole . ◽  
N.F. Anurudu . ◽  
O.O.Olomola .
Keyword(s):  
Chemical Composition ◽  
Secondary Metabolites ◽  
Gas Production ◽  
In Vitro Gas Production ◽  
Tea Leaf

scholarly journals Silage of Intercropping Corn, Palisade Grass, and Pigeon Pea Increases Protein Content and Reduces In Vitro Methane Production

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1784
Author(s):  
Beatriz Ligoski ◽  
Lucas Ferreira Gonçalves ◽  
Flavio Lopes Claudio ◽  
Estenio Moreira Alves ◽  
Ana Maria Krüger ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Methane Production ◽  
Nutritional Quality ◽  
Production Systems ◽  
Animal Feed ◽  
Lignin Content ◽  
Pigeon Pea ◽  
Gas Production ◽  
In Vitro Gas Production

Legume–grass intercropping systems are a sustainable option to improve nutritional quality of animal feed and decrease livestock greenhouse gas emissions. Thus, the present study evaluated yield, chemical composition and in vitro gas production of silages produced with intercropped palisade grass (Urochloa brizantha.(A.Rich.) R.D.Webster), pigeon pea (Cajanus cajan cv. Super N) and corn (Zea mays. L.). Forage was harvested and placed inside micro-silos, which were opened after 100 days and samples were collected for chemical composition and in vitro gas production analyses. Intercropped silage had higher crude protein, acid detergent fiber, and lignin content than corn silage. Moreover, intercropped silage decreased total gas and methane production. Therefore, intercropped silage showed potential to increase conserved feed nutritional quality and reduce methane emissions in livestock production systems.

Biomass Yield, Chemical Composition and In Vitro Gas Production of Different Dhaincha (Sesbania spp.) Accessions from Bangladesh

2018 ◽  
Vol 35 (4) ◽  
pp. 397
Author(s):  
A.K.M. Ahsan Kabir ◽  
M. Moniruzzaman ◽  
Z. Gulshan ◽  
A.B.M. Mustanur Rahman ◽  
A.K.M Golam Sarwar
Keyword(s):  
Chemical Composition ◽  
Biomass Yield ◽  
Gas Production ◽  
In Vitro Gas Production ◽  
Sesbania Spp
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