短程旅游 发表于 2025-3-28 15:33:45
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 thnonplus 发表于 2025-3-28 20:28:53
http://reply.papertrans.cn/39/3882/388189/388189_42.png增减字母法 发表于 2025-3-29 00:12:46
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 tinduct 发表于 2025-3-29 05:31:34
http://reply.papertrans.cn/39/3882/388189/388189_44.pngfrozen-shoulder 发表于 2025-3-29 09:59:43
http://reply.papertrans.cn/39/3882/388189/388189_45.png华而不实 发表于 2025-3-29 13:54:42
http://reply.papertrans.cn/39/3882/388189/388189_46.png妨碍议事 发表于 2025-3-29 17:34:35
http://reply.papertrans.cn/39/3882/388189/388189_47.png泄露 发表于 2025-3-29 21:42:19
http://reply.papertrans.cn/39/3882/388189/388189_48.png曲解 发表于 2025-3-30 03:25:41
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感情脆弱 发表于 2025-3-30 06:11:04
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.