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作 者:方刘[1,2,3] 梁旭方[1] 李姣[1] 易提林[2] 许巧情[2] 房进广 张进 杨章诚 FANG Liu LIANG Xu-fang LI Jiao YI Ti-lin XU Qiao-qing FANG Jin-guang ZHANG Jin YANG Zhang-cheng(College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China College of Animal Science, Yangtze University, Jingzhou 434024, China Fisheries Bureau of Hong'an County, Huanggang 438000, China Qingyuan Yushun Animal Husbandry and Fishery Science and Technology Service Co, Ltd., Qingyuan 511500, China)
机构地区:[1]华中农业大学水产学院,湖北武汉430070 [2]长江大学动物科学学院,湖北荆州434024 [3]红安县水产局,湖北黄冈438000 [4]清远市宇顺农牧渔业科技服务有限公司,广东清远511500
出 处:《广东农业科学》2017年第1期143-148,共6页Guangdong Agricultural Sciences
基 金:国家科技支撑计划项目(2012BAD25B04);长江大学博士科研启动基金(801200010133)
摘 要:通过分析定期施用发酵猪粪和不施肥两种养殖模式麦瑞加拉鲮鱼(Cirrhina mrigola)的生长、水质及胃肠道饵料生物结构,探索发酵粪肥在鲮鱼高密度养殖中的应用价值。结果表明,适量的发酵粪肥投入池塘可以促进鲮鱼生长,肠道充塞度指标增加;投喂发酵粪肥可有效降低池塘水体氨态氮浓度,表明粪肥可以作为一种有机碳源补充,调节池塘水体碳氮平衡,促进异养细菌繁殖,但投喂粪肥池塘的悬浮固体物总量显著升高;投入粪肥池塘浮游动物枝角类数量显著性多于未投入粪肥的池塘,浮游植物藻类的数量也显著增加;投喂粪肥池塘的鲮鱼肠道内容物含量较未投喂粪肥的池塘呈现显著增加,鲮鱼肠道轮虫和原生动物数量在投入粪肥的池塘显著高于未投粪肥的池塘。Abstract: Mud carp ( Cirrhina mrigola ) is one of major economic fishes in south of China because of its high commercial value for mandarin fish ( Siniperca chuatsi ) farming. In this study, we investigated the growth, water quality and biological structures of gastrointestinal food of mud carp two farming modes, to consider the value of manure fermentation in high-density culture of mud carp. The results showed that moderate manure fermentation can promote the growth of fish and make intestinal stuffed index increased. Feeding fermented manure can effectively reduce the water ammonia nitrogen concentration, suggesting that manure can be used as an organic carbon source regulating carbon/nitrogen balance and promoting heterotrophic bacteria growth. However, the total amount of suspended solids in pond increased significantly. The zooplankton Cladocera amount in treatment pond was significanthigher than that in control pond. The number of phytoplankton algae also increased significantly. In manure pond, fish's intestinal contents showed a significant increase, fish intestinal protozoa and rotifers were significantly higher than that in control pond.
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