In 2016 and 2017,the ecological pond breeding experiment of Charybdis japonica was carried out,with a total of experimental area up to 4 ha.Through two years of experimental research,it obtained a total of 48950 kg of...In 2016 and 2017,the ecological pond breeding experiment of Charybdis japonica was carried out,with a total of experimental area up to 4 ha.Through two years of experimental research,it obtained a total of 48950 kg of C.japonica,with an average output of 12237.5 kg/ha.The production output value was 2.3675 million yuan,the total production cost was 831700 yuan,the net profit was 1.5358 million yuan,the average profit was 384000 yuan/ha,and the input-output ratio was 1∶2.85.The average proportion of C.japonica population with a production weight of 150 g or more was 7.9%.The proportion of the group of 120-150 g was relatively large,with an average of 80%in two years,and the proportion of the group below 120 g was relatively small,with an average of 12%in two years.The cumulative harvest of shellfish in two years was 65700 kg,with an average output of 16425 kg/ha,the production output value of 738100 yuan,the production cost of 295500 yuan,the net profit of 442600 yuan,and the average profit of 110700 yuan/ha.展开更多
在水温23．5～28．5℃下，将体质量（6．76±0．1）g的中华绒螯蟹随机分为6组，置于24个100 cm ×50 cm ×50 cm的玻璃缸中，每组4个平行，每个平行30尾中华绒螯蟹，投喂含有0（对照组）、0．1％、0．5％、1．0％、1．5％、...在水温23．5～28．5℃下，将体质量（6．76±0．1）g的中华绒螯蟹随机分为6组，置于24个100 cm ×50 cm ×50 cm的玻璃缸中，每组4个平行，每个平行30尾中华绒螯蟹，投喂含有0（对照组）、0．1％、0．5％、1．0％、1．5％、2．0％复方中草药的饲料60d。试验结果表明，除0．1％组与对照组差异不显著（P＞0．05）外，其他各试验组中华绒螯蟹的质量增加率和特定生长率均显著高于对照组（P＜0．05）。1．0％组中华绒螯蟹血细胞吞噬率和吞噬指数最高（P＜0．05）；血清和肝胰脏组织中超氧化物歧化酶、过氧化物歧化酶、过氧化氢酶的活性最高，与对照组差异显著（P＜0．05）。血清中酸性磷酸酶活性，除0．1％和2．0％组（P＞0．05）外，其他各处理组酸性磷酸酶活性显著升高（P＜0．05）。0．5％、1．0％和1．5％组中华绒螯蟹的碱性磷酸酶活性与对照组差异显著（P＜0．05），其他各组与对照组差异不显著（P＞0．05）。血清和肝胰脏组织中溶菌酶活性均随饲料复方中草药添加量的增加先升后降，显著高于对照组（P＜0．05）。肝胰脏中丙二醛的含量随着复方中草药添加量的增加而显著下降。除0．1％组外，其他组的中华绒螯蟹死亡率显著降低（P＜0．05），免疫保护率显著性升高（P＜0．05）。在基础饲料中添加1．0％的复方中草药，中华绒螯蟹生长、非特异性免疫及抗病力较强。展开更多
文摘In 2016 and 2017,the ecological pond breeding experiment of Charybdis japonica was carried out,with a total of experimental area up to 4 ha.Through two years of experimental research,it obtained a total of 48950 kg of C.japonica,with an average output of 12237.5 kg/ha.The production output value was 2.3675 million yuan,the total production cost was 831700 yuan,the net profit was 1.5358 million yuan,the average profit was 384000 yuan/ha,and the input-output ratio was 1∶2.85.The average proportion of C.japonica population with a production weight of 150 g or more was 7.9%.The proportion of the group of 120-150 g was relatively large,with an average of 80%in two years,and the proportion of the group below 120 g was relatively small,with an average of 12%in two years.The cumulative harvest of shellfish in two years was 65700 kg,with an average output of 16425 kg/ha,the production output value of 738100 yuan,the production cost of 295500 yuan,the net profit of 442600 yuan,and the average profit of 110700 yuan/ha.
文摘在水温23．5～28．5℃下，将体质量（6．76±0．1）g的中华绒螯蟹随机分为6组，置于24个100 cm ×50 cm ×50 cm的玻璃缸中，每组4个平行，每个平行30尾中华绒螯蟹，投喂含有0（对照组）、0．1％、0．5％、1．0％、1．5％、2．0％复方中草药的饲料60d。试验结果表明，除0．1％组与对照组差异不显著（P＞0．05）外，其他各试验组中华绒螯蟹的质量增加率和特定生长率均显著高于对照组（P＜0．05）。1．0％组中华绒螯蟹血细胞吞噬率和吞噬指数最高（P＜0．05）；血清和肝胰脏组织中超氧化物歧化酶、过氧化物歧化酶、过氧化氢酶的活性最高，与对照组差异显著（P＜0．05）。血清中酸性磷酸酶活性，除0．1％和2．0％组（P＞0．05）外，其他各处理组酸性磷酸酶活性显著升高（P＜0．05）。0．5％、1．0％和1．5％组中华绒螯蟹的碱性磷酸酶活性与对照组差异显著（P＜0．05），其他各组与对照组差异不显著（P＞0．05）。血清和肝胰脏组织中溶菌酶活性均随饲料复方中草药添加量的增加先升后降，显著高于对照组（P＜0．05）。肝胰脏中丙二醛的含量随着复方中草药添加量的增加而显著下降。除0．1％组外，其他组的中华绒螯蟹死亡率显著降低（P＜0．05），免疫保护率显著性升高（P＜0．05）。在基础饲料中添加1．0％的复方中草药，中华绒螯蟹生长、非特异性免疫及抗病力较强。
