NDLI: Effects of forage composition and growing season on methane emission from sheep in the Inner Mongolia steppe of China

Content Provider	Springer Nature Link
Author	Wang, Chengjie Wang, Shiping Zhou, He Glindemann, Thomas
Copyright Year	2006
Abstract	Understanding the effects of dietary composition on methane (CH$_{4}$) production of sheep can help us to understand grassland degradation resulting in an increase of CH$_{4}$ emission from ruminant livestock and its resulting significance affecting CH$_{4}$ source/sink in the grazing ecosystem. The objective of this study was to investigate the effect of forage composition in the diet of sheep in July and August on CH$_{4}$ production by sheep in the Inner Mongolia steppe. The four diet treatments were: (1) Leymus chinensis and Cleistogenes squarrosa (LC), (2) Leymus chinensis, Cleistogenes squarrosa and concentrate supplementation (LCC), (3) Artemisia frigida and Cleistogenes squarrosa (AC), and (4) Artemisia frigida, Cleistogenes squarrosa and concentrate supplementation (ACC). CH$_{4}$ production was significantly lower in July than in August (31.4 and 36.2 g per sheep-unit per day, respectively). The daily average CH$_{4}$ production per unit of digestive dry matter (DM), organic matter (OM) and neutral detergent fiber (NDF) increased by 10.9, 11.2 and 42.1% for the AC diet compared with the LC diet, respectively. Although concentrate supplementation in both the AC and LC diets increased total CH$_{4}$ production per sheep per day, it improved sheep productivity and decreased CH$_{4}$ production by 14.8, 12.5 and 14.8% per unit of DM, OM and NDF digested by the sheep, respectively. Our results suggested that in degraded grassland CH$_{4}$ emission from sheep was increased and concentrate supplementation increased diet use efficiency. Sheep-grazing ecosystem seems to be a source of CH$_{4}$ when the stocking rate is over 0.5 sheep-units ha$^{−1}$ during the growing season in the Inner Mongolia steppe.
Starting Page	41
Ending Page	48
Page Count	8
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	22
Issue Number	1
e-ISSN	14401703
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-06-09
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Methane emission Sheep Face mask Plant composition Seasonal influence Inner Mongolia steppe of China Forestry Behavioural Sciences Evolutionary Biology Zoology Plant Sciences Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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