干旱区生态环境知识资源中心(Arid): Nitrogen utilisation, energy utilisation and methane emissions of sheep grazing in two types of pasture

Arid

DOI	10.1016/j.animal.2023.100705
	Nitrogen utilisation, energy utilisation and methane emissions of sheep grazing in two types of pasture
	Xie, Kaili; Liu, Fuyao; Zhang, Cheng; Hou, Fujiang
通讯作者	Hou, FJ
来源期刊	ANIMAL
ISSN	1751-7311
EISSN	1751-732X
出版年	2023
卷号	17 期号:2
英文摘要	Livestock grazing plays a significant role in maintaining grasslands and promoting animal production globally. To understand the livestock performance in sown pasture (SP) vs native pasture (NP) is impor-tant to ensure more effective grassland-livestock interactions with minimal environmental impact. A 2 (treatment) * 2 (period) Latin Square design experiment was conducted with 10 growing Hu sheep # x thin-tailed Han sheep $ rams grazed perennially SP vs NP in an inland arid region of China. The objec-tives were to evaluate the effects of grazing management on nutrient digestibility, nitrogen (N) and energy utilisation and methane (CH4) emission. The N intake, N retained and energy intake (gross energy (GE), and digestible and metabolisable energy) of sheep grazing in SP were significantly increased com-pared with those grazing in NP. There were significant linear relationships between DM intake (DMI) (g/ kg BW or g/kg BW0.75) or CH4 (g/kg BW or g/kg BW0.75) emissions and forage nutrient and GE concentra-tions within each grassland type. The linear regression analysis indicated that forage CP or ether extract concentration was a good predictor for DMI (g/kg BW or g/kg BW0.75) (R2 = 0.756 or 0.752), and CH4 emis-sion could be predicted using forage nutrient and GE concentrations (R2 = 0.381-0.503). These results suggest that DMI and CH4 emissions per unit metabolic BW were accurately predicted by multiple-factor combinations of forage nutrients, including ether extract and CP paired with GE. The present out-put could provide useful information for the development of sustainable sheep grazing systems in the inland arid regions of the world.(c) 2023 The Author(s). Published by Elsevier B.V. on behalf of The Animal Consortium. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
英文关键词	Enteric methane emissions Forage Prediction equation Saline meadow Sulphur hexafluoride
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000927328300001
WOS关键词	UTILIZATION EFFICIENCY ; CONCENTRATE SUPPLEMENTATION ; NUTRIENT DIGESTIBILITY ; DAIRY ; PREDICTION ; GRASS ; METHANOGENESIS ; MAINTENANCE ; PERFORMANCE ; DIVERSITY
WOS类目	Agriculture, Dairy & Animal Science ; Veterinary Sciences
WOS研究方向	Agriculture ; Veterinary Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395295
推荐引用方式 GB/T 7714	Xie, Kaili,Liu, Fuyao,Zhang, Cheng,et al. Nitrogen utilisation, energy utilisation and methane emissions of sheep grazing in two types of pasture[J],2023,17(2).
APA	Xie, Kaili,Liu, Fuyao,Zhang, Cheng,&Hou, Fujiang.(2023).Nitrogen utilisation, energy utilisation and methane emissions of sheep grazing in two types of pasture.ANIMAL,17(2).
MLA	Xie, Kaili,et al."Nitrogen utilisation, energy utilisation and methane emissions of sheep grazing in two types of pasture".ANIMAL 17.2(2023).