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
出 处:《现代农业科学》2009年第5期194-195,198,共3页
摘 要:为满足太阳鱼商品鱼5~10月市场需求,选择杂交太阳鱼秋苗池塘养殖,投喂粗蛋白为36%~40%的浮性配合饲料,5月份以后采取筛选和捕大留小的方法出售100 g以上的商品鱼。经试验,太阳鱼平均产量567.8 kg/667m2,夏花出池为成活率93.3%,饲料系数1.05,养殖投入与产出比为1:3.15。In order to meet the market requirement of sunfish in 5 - 10 month, the autumn larvae of hybrid sunfish was selected to culture in pond, it was fed with floatability formula feed containing 36% -40% coarse protein, sunfish with the weight of above 100 g were picked out to sell after May. The results indicated that the average yield of sunfish was 567.8 kg/667m^2, the survival rate was 93.3%, feed coefficient was 1.05, and the ratio of input and output was 1:3.15.
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:216.73.216.38