Methane

Publication Title: 
Journal of Animal Physiology and Animal Nutrition

A study was conducted to evaluate some plant parts (already tested for their antimethanogenic activity in in vitro gas production test in the authors' laboratory) as feed additive to combat methane emission from sheep. Sixteen male sheep with average body weight of 29.96±1.69 kg (22 months of age) were divided into four groups in a randomized block design. The animals were fed on a diet containing forage to concentrate ratio of 1:1. The concentrate fraction composed (in parts) of maize grain, 32; wheat bran, 45; deoiled soybean meal, 20; mineral mixture, 2 and common salt, 1.

Author(s): 
Patra, A. K.
Kamra, D. N.
Bhar, R.
Kumar, R.
Agarwal, N.
Publication Title: 
Journal of Animal Physiology and Animal Nutrition

The potential of tannins from 21 medicinal and aromatic plant leaves as antimethanogenic additives in ruminant feeds was investigated. The effect of tannin from these leaves on rumen fermentation parameters, protozoa population and methanogenesis was studied by incubating the samples [200?mg dry matter (DM)] without and with polyethylene glycol (PEG)-6000 (400?mg DM) as a tannin binder during 24-h incubation in the in vitro Hohenheim gas method.

Author(s): 
Bhatta, R.
Baruah, L.
Saravanan, M.
Suresh, K. P.
Sampath, K. T.
Publication Title: 
Animal Science Journal = Nihon Chikusan Gakkaiho

This study investigates the effects of Terminalia chebula Retz. meal supplementation on rumen fermentation and methane (CH4 ) production by using an in vitro gas technique. The experimental design was a completely randomized design (CRD) and the dietary treatments were T. chebula supplementation at 0, 4, 8, 12, 16 and 20?mg with 0.5?g of roughage and concentrate ratio at 60:40. The results revealed that cumulative gas production (96?h of incubation) were higher (P?<?0.01) with T. chebula supplementation at 12, 16 and 20?mg than other treatments.

Author(s): 
Anantasook, Nirawan
Wanapat, Metha
Gunun, Pongsatorn
Cherdthong, Anusorn
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

The soil N2O and CH4 fluxes in the broad-leaved Korean pine forest of Changbai Mountains under two treatments were measured by static chamber-gas chromatograph. The results showed that litter significantly influenced N2O emission and CH4 uptake, and the effect efficiency was 36.9% and 23.4%, respectively. The N2O emission fluxes of the two treatments showed similar seasonal variations, with the highest in spring, higher in summer, and lower in autumn and winter.

Author(s): 
Xiao, Dongmei
Wang, Miao
Ji, Lanzhu
Han, Shijie
Wang, Yuesi
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

In a long-term site-specific experiment with rice straw return (RSR) and in a short-term experiment with different RSR modes, this paper studied the effects of RSR on the soil organic carbon (SOC) sequestration, methane emission, and net carbon sink in a double season paddy field. RSR increased the SOC content, and the annual increasing rate of soil carbon sink in plow layer (0-15 cm) under long-term RSR was 0.07 t C x hm(-2) x a(-1). With the increasing amount of RSR, the apparent SOC transformation rate decreased.

Author(s): 
Wu, Jia-Mei
Ji, Xiong-Hui
Peng, Hua
Shi, Li-Hong
Liu, Zhao-Bing
Tian, Fa-Xiang
Huo, Lian-Jie
Zhu, Jian
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