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
作 者:王宇希[1] 冯晓宇[1] 李行先[1] 郭水荣[1] 谢楠[1]
机构地区:[1]杭州市农业科学研究院水产所,浙江杭州310024
出 处:《水产科学》2009年第11期683-686,共4页Fisheries Science
基 金:浙江省杭州市科技发展计划项目科研院所专项(20061932N11)
摘 要:对杂交鳢和乌鳢进行池塘养殖对比试验。前者投喂人工饲料,后者投喂冰鲜鱼,结合水质调控和病害防治等技术,杂交鳢成活率80.9%,乌鳢53.9%;杂交鳢平均单产为5.2 kg/m2,饵料系数1.367;乌鳢1.8 kg/m2,饵料系数4.29。整个养殖过程杂交鳢塘换水2次,乌鳢塘换水6次。Northern snakehead (Channa argus) and its hybrid were stocked into a pond and fed formulated feed or frozen fish separately to evaluate the effect of different diets on growth performance and survival. During the experiment survival of 80. 9%, yield of 5.2 kg/m^2 and feed conversion ratio of 1. 367 were found in the hybrid culture pond in which the water was exchanged twice during the experiment while survival of 53.9 %, yield of 1.8 kg/m^2 and feed conversion ratio of 4.29 were observed in the northern snakehead pond in which the water was exchanged 6 times.
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:216.73.216.117