检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]中国农业大学动物科技学院
出 处:《中国畜牧杂志》1998年第3期3-5,共3页Chinese Journal of Animal Science
摘 要:设计3个试验研究了调整营养制度,降低肉仔鸡饲养成本的措施。试验结果表明,让肉仔鸡从3周龄提前到2周龄时由生长前期料换用生长中期料,不影响其37日龄体重及0~37日龄的饲料利用。在无严重应激存在的情况下,肉仔鸡上市(49日龄)前3周内的基础日粮中不补加微量元素和2周内不补加维生素不影响生长和饲料转化率。以上对肉仔鸡生长前。Three experiments were conducted to study the approaches to reduce the feeding cost of broilers through modifying the nutritional regime. The results showed that in a broiler feeding program,the switch from starter to grower diet at two weeks instead of three weeks of age,did not influence the live body weight at age of 37 days and the feed conversion efficiency during the period of 37 days,and as long as no obvious stressors exist.supplemental microminerals and vitamins in the finisher diet can be withdrawn without sacrifice in performance,three weeks and two weeks respectively before the market weight reached. The feeding cost of broilers can be reduced through modifying the amounts of nutrients intake of starters and finishers as shown above.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28