フルテキストファイル
著者
Kobayashi Nobuyuki The United Graduate School of Agricultural Sciences, Tottori University / Arid Land Research Center, Tottori University
Hou Fujiang College of Pastoral Agriculture Science and Technology, Lanzhou University
Tsunekawa Atsushi Arid Land Research Center, Tottori University 研究者総覧 KAKEN
Chen Xianjiang College of Pastoral Agriculture Science and Technology, Lanzhou University
Yan Tianhai Agri-Food and Biosciences Institute, Belfast, Northern Ireland, UK
Ichinohe Toshiyoshi Faculty of Life and Environmental Science, Shimane University
キーワード
Alfalfa hay
beef cattle
China
dryland
energy metabolism
抄録
From August to September 2015 (trial 1 [T1]) and September to November 2015 (trial 2 [T2]), the effects of replacing concentrate feed (C) with alfalfa hay (AH) on the daily gain (DG), dietary energy utilization status and the economic advantage of AH feeding for growing beef cattle were studied in crossbred male Simmental calves (n = 18) in Gansu Province, China. The target DG was set as 1 kg for both trials. Animals in each trial were allocated to a conventional feeding group (CTRL), a low‐level AH feeding group (LA), and a high‐level AH feeding group (HA). In a one‐way‐layout design, they were fed iso‐energetic experimental diets comprising harvested corn stover (CS) and C (T1‐CTRL, T2‐CTRL), diets replacing 22% (T1‐LA) or 44% (T1‐HA) of the quantity of C for T1‐CTRL with AH, and diets replacing 13% (T2‐LA) or 25% (T2‐HA) of the quantity of C for T2‐CTRL with AH. Measurements of feed intake and DG, respiration and metabolism trials were performed for 49 and 41 days in T1 and T2, respectively. Average DG did not reach the target value for HA in T1 and CTRL in T2. Energy metabolizability was slightly greater for CTRL than for LA and HA in T1 and significantly greater for CTRL than for the other groups in T2. There was no marked difference in energy metabolizability between LA and HA in both trials. Dietary substituting AH for C did not impair the feed intake of the animals, but it did not improve feed efficiency. In terms of economic feasibility, low‐level AH inclusion in the diets of growing beef cattle appeared more profitable at the 1‐kg DG level as compared with CTRL and high‐level AH inclusion, and should be practiced in the drylands of Gansu Province, China.
出版者
Wiley
資料タイプ
学術雑誌論文
外部リンク
ISSN
1744-697X
書誌ID
AA12097923
掲載誌名
Grassland science
最新掲載誌名
Grassland science
63
4
開始ページ
245
終了ページ
254
発行日
2017-08-01
出版者DOI
著者版フラグ
著者版
著作権表記
© 2017 Japanese Society of Grassland Science
掲載情報
This is the peer reviewed version of the following article: Kobayashi, N. , Hou, F. , Tsunekawa, A. , Chen, X. , Yan, T. and Ichinohe, T. (2017), Effects of substituting alfalfa hay for concentrate on energy utilization and feeding cost of crossbred Simmental male calves in Gansu Province, China. Grassl Sci, 63: 245-254. , which has been published in final form at https://doi.org/10.1111/grs.12169. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
言語
英語