Energy and protein requirements for maintenance of Southern Yellow cattle 1 fed a corn silage or straw-based diet

doi:10.1016/j.livsci.2017.09.002

NWIPB OpenIR

	Energy and protein requirements for maintenance of Southern Yellow cattle 1 fed a corn silage or straw-based diet
	Wei, M.1; Chen, L.1; Lian, X. M.2; Chen, Z. Q.1; Yan, P. S.1
	2018
发表期刊	LIVESTOCK SCIENCE
卷号	207 页码:75-82
文章类型	Article
摘要	The objective of this study was to estimate the net energy and net protein requirements for maintenance (NEm and NPm) of Southern Yellow cattle in China. A database involving 175 cattle with body weight (BW) ranging from 211 to 454 kg was obtained from a series of calorimetry experiments. The diets offered to cattle consisted of proportionately corn-soybean meal concentrate and roughage containing corn silage, rice straw and wheat straw. Linear regression equations of the logarithm of heat production (HP) and retained energy (RE) against metabolizable energy intake (MEI) were developed to predict the maintenance requirements for metabolizable energy (MEm) and NEm. The combined data indicated that the MEm and NEm were 522 and 348 MJ/kg(0.75) of BW d(-1), respectively. In addition, the partial efficiency of use of ME for maintenance was 0.66, and the partial efficiency for growth was 0.51. Similarly, there was also a linear relationship between retained nitrogen (RN) and nitrogen intake (NI). The pooled data provided a NPm of 2.63 g/kg(0.75) of BW d(-1) and a metabolizable protein requirement for maintenance (MPm) of 3.93 g/kg(0.75) of BW d(-1) for Southern Yellow cattle. In conclusion, our estimate of NEm was extremely similar to the value of the AFRC nutritional system, whereas it was slightly greater than that recommended by the NRC nutritional system. Additionally, the MPm value obtained in the current study was in agreement with the NRC recommendation.
关键词	Energy Requirement Protein Requirement Energetic Efficiency Calorimetry Southern Yellow Cattle
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1016/j.livsci.2017.09.002
关键词[WOS]	BEEF-CATTLE ; METABOLIZABLE ENERGY ; BODY-COMPOSITION ; NELLORE CATTLE ; NET ENERGY ; GROWTH ; STEERS ; EFFICIENCY ; BRAHMAN ; LAMBS
收录类别	SCI
语种	英语
项目资助者	Public Welfare Industry (Agriculture) Scientific Research Projects(201303145) ; National Key RD Plan(2016YFD0500508) ; National Natural Science Foundation of China(31501930)
WOS研究方向	Agriculture
WOS类目	Agriculture, Dairy & Animal Science
WOS记录号	WOS:000424172800012
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/13314
专题	中国科学院西北高原生物研究所
作者单位	1.Nanjing Agr Univ, Coll Anim Sci & Technol, Nanjing 210095, Jiangsu, Peoples R China 2.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810000, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Wei, M.,Chen, L.,Lian, X. M.,et al. Energy and protein requirements for maintenance of Southern Yellow cattle 1 fed a corn silage or straw-based diet[J]. LIVESTOCK SCIENCE,2018,207:75-82.
APA	Wei, M.,Chen, L.,Lian, X. M.,Chen, Z. Q.,&Yan, P. S..(2018).Energy and protein requirements for maintenance of Southern Yellow cattle 1 fed a corn silage or straw-based diet.LIVESTOCK SCIENCE,207,75-82.
MLA	Wei, M.,et al."Energy and protein requirements for maintenance of Southern Yellow cattle 1 fed a corn silage or straw-based diet".LIVESTOCK SCIENCE 207(2018):75-82.