Immunization and tannins in livestock enteric methane amelioration.

2015 ◽  
pp. 304-317
Author(s):  
Y. Uyeno
Keyword(s):  
Enteric Methane

Use of infrared thermography to estimate enteric methane production in dairy heifers

2021 ◽  
pp. 1-9
Author(s):  
Alexandre M. Gabbi ◽  
Giovani J. Kolling ◽  
Vivian Fischer ◽  
Luiz Gustavo R. Pereira ◽  
Thierry R. Tomich ◽  
...  
Keyword(s):  
Infrared Thermography ◽  
Methane Production ◽  
Dairy Heifers ◽  
Enteric Methane

Effect of pasture management on enteric methane emissions from goats

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
Naomi Cristina Meister ◽  
Abmael da Silva Cardoso ◽  
Fernando Oliveira Alari ◽  
Nailson Lima Santos Lemos ◽  
Rosa Toyoko Shiraishi Frighetto ◽  
...  
Keyword(s):  
Methane Emissions ◽  
Pasture Management ◽  
Enteric Methane ◽  
Enteric Methane Emissions

scholarly journals Reducing enteric methane production from buffalo (Bubalus bubalis) by garlic oil supplementation in in vitro rumen fermentation system

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Avijit Dey ◽  
Shyam Sundar Paul ◽  
Puran Chand Lailer ◽  
Satbir Singh Dahiya
Keyword(s):  
Environmental Pollution ◽  
Methane Production ◽  
Rumen Fluid ◽  
Bubalus Bubalis ◽  
Rumen Fermentation ◽  
Acetyl Esterase ◽  
Garlic Oil ◽  
Enteric Methane ◽  
In Vitro Rumen Fermentation

AbstractEnteric methane production contributes significantly to the greenhouse gas emission globally. Although, buffaloes are integral part of livestock production in Asian countries, contributing milk, meat and draft power, the contribution of enteric methane to environmental pollution attracts attention. The present study investigated the efficacy of garlic (Allium sativum) oil in reducing enteric methane production from buffaloes (Bubalus bubalis) by in vitro rumen fermentation. Garlic oil (GOL) was tested at four concentrations [0 (Control), 33.33 µl (GOL-1), 83.33 µl (GOL-2) and 166.66 µl (GOL-3) per litre of buffered rumen fluid] in 100-ml graduated glass syringes and incubated at 39℃ for 24 h for in vitro rumen fermentation study. Supplementation of GOL-1 increased (p < 0.05) total gas production in comparison with GOL-3; however, it remained comparable (p > 0.05) with control and GOL-2. Graded doses of garlic oil inclusions reduced (p < 0.001) methane concentration (%) in total gas and total methane production (ml/g DM), irrespective of concentrations. The feed degradability, volatile fatty acids and microbial biomass production (MBP) were not affected (p > 0.05) by GOL-1, but these tended to decrease in GOL-2 with marked reduction (p < 0.01) in GOL-3. The decrease (p < 0.01) in NH3–N concentration in fermentation fluid in the presence of garlic oil, irrespective of concentration, suggests reduced deamination by inhibiting rumen proteolytic bacterial population. The activities of ruminal fibrolytic enzymes (CMCase, xylanase, β-glucosidase, acetyl esterase) were not affected by lower dose (GOL-1) of garlic oil; however, reduction (p < 0.05) of these enzymes activity in rumen liquor was evident at higher doses (GOL-2 and GOL-3) of supplementation. This study shows positive impact of garlic oil supplementation at low dose (33.33 µl/l of rumen fluid) in reducing enteric methane production, thereby, abatement of environmental pollution without affecting feed digestibility.

78 Predicting enteric methane production from the rumen microbial composition of beef steers fed either a high concentrate or cut grass diet

2021 ◽  
Vol 12 (1) ◽  
pp. 57
Author(s):  
Gemma Miller ◽  
Marc Auffret ◽  
Rainer Roehe ◽  
Holly Nisbet ◽  
Marina Martínez-Alvaro
Keyword(s):  
Methane Production ◽  
Beef Steers ◽  
Microbial Composition ◽  
Enteric Methane

scholarly journals Revisiting enteric methane emissions from domestic ruminants and their δ13CCH4 source signature

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Jinfeng Chang ◽  
Shushi Peng ◽  
Philippe Ciais ◽  
Marielle Saunois ◽  
Shree R. S. Dangal ◽  
...  
Keyword(s):  
Methane Emissions ◽  
Domestic Ruminants ◽  
Enteric Methane ◽  
Enteric Methane Emissions

Forage brassica: a feed to mitigate enteric methane emissions?

2016 ◽  
Vol 56 (3) ◽  
pp. 451 ◽  
Author(s):  
Xuezhao Sun ◽  
David Pacheco ◽  
Dongwen Luo
Keyword(s):  
Methane Emissions ◽  
Methane Yield ◽  
Forage Crops ◽  
Enteric Methane ◽  
Winter Crop ◽  
Feeding Trials ◽  
Series Of Experiments ◽  
Forage Rape ◽  
Pastoral Farming ◽  
Enteric Methane Emissions

A series of experiments was conducted in New Zealand to evaluate the potential of forage brassicas for mitigation of enteric methane emissions. Experiments involved sheep and cattle fed winter and summer varieties of brassica forage crops. In the sheep-feeding trials, it was demonstrated that several species of forage brassicas can result, to a varying degree, in a lower methane yield (g methane per kg of DM intake) than does ryegrass pasture. Pure forage rape fed as a winter crop resulted in 37% lower methane yields than did pasture. Increasing the proportion of forage rape in the diet of sheep fed pasture linearly decreased methane yield. Feeding forage rape to cattle also resulted in 44% lower methane yield than did feeding pasture. In conclusion, reductions in methane emission are achievable by feeding forage brassicas, especially winter forage rape, to sheep and cattle. Investigating other aspects of these crops is warranted to establish their value as a viable mitigation tool in pastoral farming.

scholarly journals Can live weight be used as a proxy for enteric methane emissions from pasture-fed sheep?

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
J. M. Moorby ◽  
H. R. Fleming ◽  
V. J. Theobald ◽  
M. D. Fraser
Keyword(s):  
Live Weight ◽  
Methane Emissions ◽  
Enteric Methane ◽  
Enteric Methane Emissions
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