找回密码
 To register

QQ登录

只需一步,快速开始

扫一扫,访问微社区

Titlebook: ;

[复制链接]
楼主: Thoracic
发表于 2025-3-28 15:33:45 | 显示全部楼层
https://doi.org/10.1007/978-3-031-65980-5comes from the dairy herd and one third from the beef cow herd, Most of the steers and heifers, and recently a small proportion of the young bulls are reared principally on grass. Intensively reared young bulls contribute only about 14% of beef produced (Table 1) and one quarter of these are from th
发表于 2025-3-28 20:28:53 | 显示全部楼层
发表于 2025-3-29 00:12:46 | 显示全部楼层
https://doi.org/10.1007/978-3-031-70326-3ts. Cows which gained 138 kg at grass between mid-April and the end of August and lost 100 kg over the winter, produced calves which were 28 kg lighter in June than cows which gained 25 kg between April and August and a further 13 kg over the winter. However, because of higher winter feed costs in t
发表于 2025-3-29 05:31:34 | 显示全部楼层
发表于 2025-3-29 09:59:43 | 显示全部楼层
发表于 2025-3-29 13:54:42 | 显示全部楼层
发表于 2025-3-29 17:34:35 | 显示全部楼层
发表于 2025-3-29 21:42:19 | 显示全部楼层
发表于 2025-3-30 03:25:41 | 显示全部楼层
https://doi.org/10.1007/978-3-031-69758-6eers slaughtered at the same age, provided they are well fed Their carcasses also give a greater yield of lean meat..Care must be taken to minimise disturbances to their behaviour. Growth promoters may be used to increase the liveweight and carcass gain of steers but may affect their behaviour adver
发表于 2025-3-30 06:11:04 | 显示全部楼层
Gerhard Bauer,Robert Stockhammer potential improvement in pasture utilisation compared to grazing. Successful operation of the system is very dependent on the conservation of high yields of high quality forage, and on the availability of suitable buildings and equipment.
 关于派博传思  派博传思旗下网站  友情链接
派博传思介绍 公司地理位置 论文服务流程 影响因子官网 SITEMAP 大讲堂 北京大学 Oxford Uni. Harvard Uni.
发展历史沿革 期刊点评 投稿经验总结 SCIENCEGARD IMPACTFACTOR 派博系数 清华大学 Yale Uni. Stanford Uni.
|Archiver|手机版|小黑屋| 派博传思国际 ( 京公网安备110108008328) GMT+8, 2025-5-22 02:25
Copyright © 2001-2015 派博传思   京公网安备110108008328 版权所有 All rights reserved
快速回复 返回顶部 返回列表