Measurement and regulation of environmentally hazardous gas emissions from beef cattle manure composting

2006 ◽  
Vol 1293 ◽  
pp. 303-306 ◽  
Author(s):  
M. Shiraishi ◽  
N. Wakimoto ◽  
E. Takimoto ◽  
H. Kobayashi ◽  
T. Osada
2020 ◽  
Vol 63 (6) ◽  
pp. 1723-1733
Author(s):  
Zhiping Zhu ◽  
Lulu Li ◽  
Hongmin Dong ◽  
Yue Wang

HighlightsCarbon and nitrogen gas emissions from manure storage were influenced by manure characteristics.The main GHG contributor for dairy cattle, beef cattle, and broiler manure was methane.The main GHG contributor for laying hen manure was nitrous oxide (N2O).N2O emissions of the five types of manure were comparable with the IPCC recommended value.Abstract. Livestock manure management is an important source of greenhouse gases (GHGs) and ammonia (NH3) emissions from agriculture. Large amounts of manure are produced in China, while little research is available on the gas emission characteristics from different manure sources. The GHG and NH3 emissions from pig manure (PM), dairy cattle manure (DCM), beef cattle manure (BCM), layer manure (LM), and broiler manure (BM) during storage were monitored using the dynamic emission chamber method to compare the differences in gas emission characteristics among the five manure types and elucidate the key factors causing the differences. The results indicated that C and N gas emissions from manure storage were influenced by manure characteristics. The total CO2-eq (without CO2) emissions from PM, DCM, BCM, LM, BM were, respectively, 49.98 ±3.53, 1160.4 ±55.22, 692.16 ±42.98, 61.99 ±1.92, and 72.52 ±3.45 g per kg of dry basis manure during 77-day storage. The main GHG contributor for DCM, BCM, and BM was methane (CH4), accounting for 65% to 94%, and the main GHG contributor for LM was nitrous oxide (N2O). For PM, CH4 and N2O contributed equally to the total emissions. The N2O emissions of the five manure types were 0.002 to 0.013 kg N2O-N kg-1 N and were comparable with the IPCC recommended value. Keywords: Ammonia, Animal manure, Emission, Methane, Nitrous oxide.


Author(s):  
N. Andy Cole ◽  
Michael S. Brown ◽  
Vince Varel

2019 ◽  
Vol 48 (6) ◽  
pp. 1683-1693 ◽  
Author(s):  
Eric Miller ◽  
Mindy Spiehs ◽  
Terrance M. Arthur ◽  
Bryan Woodbury ◽  
Erin Cortus ◽  
...  

2019 ◽  
Vol 3 (4) ◽  
pp. 1383-1388 ◽  
Author(s):  
Breanna M Roque ◽  
Henk J Van Lingen ◽  
Hilde Vrancken ◽  
Ermias Kebreab

Abstract: Enteric methane (CH4) production is the main source of greenhouse gas emissions from livestock globally with beef cattle contributing 5.95% of total global greenhouse gas emissions. Various mitigation strategies have been developed to reduce enteric emissions with limited success. In vitro studies have shown a reduction in CH4 emissions when using garlic and citrus extracts. However, there is paucity of data regarding in vivo studies investigating the effect of garlic and citrus extracts in cattle. The objective of this study was to quantitatively evaluate the response of Angus × Hereford cross steers consuming the feed additive Mootral, which contains extracts of both garlic and citrus, on CH4 yield (g/kg dry matter intake [DMI]). Twenty steers were randomly assigned to two treatments: control (no additive) and Mootral supplied at 15 g/d in a completely randomized design with a 2-wk covariate and a 12-wk data collection periods. Enteric CH4 emissions were measured using the GreenFeed system during the covariate period and experimental weeks 2, 6, 9, and 12. CH4 yield (g/kg DMI) by steers remained similar in both treatments for weeks 2 to 9. In week 12, there was a significant decrease in CH4 yield (23.2%) in treatment compared to control steers mainly because the steers were consuming all the pellets containing the additive. However, overall CH4 yield (g/kg DMI) during the entire experimental period was not significantly different. Carbon dioxide yield (g/kg DMI) and oxygen consumption (g/kg DMI) did not differ between treatments during the entire experimental period. DMI, average daily gain, and feed efficiency also remained similar in control and supplemented steers. The in vivo results showed that Mootral may have a potential to be used as a feed additive to reduce enteric CH4 production and yield in beef cattle but needs further investigation under various dietary regimen.


2004 ◽  
Vol 38 (28) ◽  
pp. 4643-4652 ◽  
Author(s):  
S.G. Sommer ◽  
S.M. McGinn ◽  
X. Hao ◽  
F.J. Larney
Keyword(s):  

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