肉牛养殖的技术要点.doc

肉牛养殖的技术要点
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of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
长期以来我国的牛都是役用为主，个体小，产肉率低。要搞好肉牛快速育肥，提高育肥牛的经济效益，应选择体格高大，肌肉发达，脂肪少，生长快的专门肉用品种或兼用品种。比较适合北方的品种有西门塔尔、夏洛来、利木赞等，适合南方的主要有西门塔尔、利木赞、肉用短角牛、澳洲楼来牛等品种。

选用以上的品种与本地黄牛开展二元经济杂交或三元经济杂交，得到的杂交一、二代牛进行育肥，可获得较好的效果。
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities

养殖户要善于接受新技术，采用人工授精技术，节省引进、饲养种公牛的成本。据统计，一头种公牛的饲养成本约为2000―2500元/年。而优质的肉牛细管冻精的费用才5～10元/支，每次配种连人工费总共也只花30―40元。

达到一定规模后，肉牛养殖场应该有一定数量的繁殖母牛，开展自繁自养，这样能降低购牛的费用。
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
3科学饲养
，改善营养
以往我国农村都是以自然青草、农作物秸秆和红薯藤喂牛，很少添加精料作为牛的主要日粮，致使肉牛的营养不够，生长缓慢，肉质差，不得好价钱。要改变过去饲养耕牛的老习惯，添加精料，提高牛的营养，缩短饲养时间，以期收到较高的经济效益。精料的原料有玉米粉、糠麸类、豆粕、豆饼、矿物质、维生素等，可参考肉牛的营养需要标准自行配制全价配合料，以降低饲料成本。处于生长发育期的犊牛，其精料可参考下列配方：
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
断奶体重250kg：玉米50%，豆粕16%，菜粕5%，棉粕7%，麦麸18%，肉牛预混料4%。②体重300kg以上：玉米42%，豆粕10%，菜粕7