scholarly journals Impact of rainfall regime on chemical composition, digestibility, and methane production of Echinochloa polystachya (Kunth) Hitch

2020 ◽  
Vol 11 (2) ◽  
pp. 147-155
Author(s):  
Medardo Díaz-Céspedes ◽  
José Hernández-Guevara ◽  
Carlos Gómez-Bravo
Keyword(s):  
Chemical Composition ◽  
Methane Production ◽  
Rainfall Regime ◽  
Echinochloa Polystachya

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.

Effect of inclusion of graded level of water hyacinth on in vitro gas production kinetics and chemical composition of alfalfa hay based beef cattle diets

2016 ◽  
Author(s):  
Gerardo Pamanes-Carrasco ◽  
Manuel Murillo-Ortiz ◽  
Esperanza Herrera-Torres ◽  
Agustin Corral-Luna
Keyword(s):  
Chemical Composition ◽  
Beef Cattle ◽  
Methane Production ◽  
Water Hyacinth ◽  
Gas Production ◽  
Co2 Production ◽  
Total Phenolic ◽  
Promising Alternative ◽  
Alfalfa Hay

The aim of this study was to evaluate the inclusion of water hyacinth (WH) as a possible substitution of alfalfa hay (AH) in diets of beef cattle on in vitro methane production, gas kinetics and chemical composition. AH in the diets was substituted by WH at 0% (T1, as a control), 25% (T2), 50% (T3), 75% (T4) and 100% (T5). Methane, CO2 and gas production parameters were recorded after 24 and 48h of incubation. NDF, condensed tannins and total phenolic compounds increased when AH was substituted. Likewise, the net gas production decreased linearly when AH was substituted. However, gas production rate among treatments were similar. Methane and CO2 production decreased linearly with inclusion of WH. These results indicate that WH arises as a promising alternative for mitigating methane production in ruminants.

Chemical composition andin vitrototal gas and methane production of forage species from the Mid Rift Valley grasslands of Ethiopia

2013 ◽  
Vol 69 (4) ◽  
pp. 635-643 ◽  
Author(s):  
M. Bezabih ◽  
W. F. Pellikaan ◽  
A. Tolera ◽  
N. A. Khan ◽  
W. H. Hendriks
Keyword(s):  
Chemical Composition ◽  
Methane Production ◽  
Rift Valley ◽  
Forage Species

Effect of three pretreatment techniques on the chemical composition and on the methane yields of Opuntia ficus-indica (prickly pear) biomass

2017 ◽  
Vol 36 (1) ◽  
pp. 17-29 ◽  
Author(s):  
PS Calabrò ◽  
E Catalán ◽  
A Folino ◽  
A Sánchez ◽  
D Komilis
Keyword(s):  
Chemical Composition ◽  
Methane Production ◽  
Lignin Content ◽  
Alkaline Treatment ◽  
Methane Yield ◽  
Opuntia Ficus Indica ◽  
Methane Generation ◽  
Methane Potential ◽  
Methane Production Rate ◽  
Experimental Values

Opuntia ficus-indica (OFI) is an emerging biomass that has the potential to be used as substrate in anaerobic digestion. The goal of this work was to investigate the effect of three pretreatment techniques (thermal, alkaline, acidic) on the chemical composition and the methane yield of OFI biomass. A composite experimental design with three factors and two to three levels was implemented, and regression modelling was employed using a total of 10 biochemical methane potential (BMP) tests. The measured methane yields ranged from 289 to 604 NmL/gVSadded; according to the results, only the acidic pretreatment (HCl) was found to significantly increase methane generation. However, as the experimental values were quite high with regards to the theoretical methane yield of the substrate, this effect still needs to be confirmed via further research. The alkaline pretreatment (NaOH) did not noticeably affect methane yields (an average reduction of 8% was recorded), despite the fact that it did significantly reduce the lignin content. Thermal pretreatment had no effect on the methane yields or the chemical composition. Scanning electron microscopy images revealed changes in the chemical structure after the addition of NaOH and HCl. Modelling of the cumulated methane production by the Gompertz modified equation was successful and aided in understanding kinetic advantages linked to some of the pretreatments. For example, the alkaline treatment (at the 20% dosage) at room temperature resulted to a μmax (maximum specific methane production rate [NmLCH4/(gVSadded·d)]) equal to 36.3 against 18.6 for the control.

Effect of supplement type and grass silage:concentrate ratio on methane production by sheep

1993 ◽  
Vol 1993 ◽  
pp. 52-52 ◽  
Author(s):  
Angela R. Moss ◽  
D.I. Givens
Keyword(s):  
Chemical Composition ◽  
Methane Production ◽  
Quantitative Information ◽  
Anthropogenic Source ◽  
Grass Silage ◽  
Ruminant Animals ◽  
The Uk ◽  
Diet Type

Methane production by ruminant animals is an important anthropogenic source of methane to the atmosphere and is considered an important source to more accurately estimate and to control. It has been known for some time that, in ruminants, diet type and composition can influence methane production, yet there is little quantitative information for contemporary diets used 1n the UK. Attempts to predict methane production from either diet chemical composition or digestibility have not been successful (Moss and Givens, 1990; Johnson et al., 1991). In order to estimate more accurately the amount of methane produced by a ruminant on a given diet, it is essential to establish whether there are interactions of various substrates with forage and to relate this to the rumen environment. Previous work showing interactions has used mainly hay-based diets (Blaxter and Wainman, 1964); as grass silage is now the major forage in the UK, work with this forage was needed.

Chemical composition, ruminal degradation kinetics, and methane production ( in vitro ) of winter grass species

2020 ◽  
Vol 101 (1) ◽  
pp. 179-184
Author(s):  
Nazir Ahmad Khan ◽  
Syed Muhammad Sulaiman ◽  
Majid S Hashmi ◽  
Sadeeq Ur Rahman ◽  
John W Cone
Keyword(s):  
Chemical Composition ◽  
Methane Production ◽  
Degradation Kinetics ◽  
Grass Species ◽  
Ruminal Degradation
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