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环保型高效饲料和某商品饲料在南美白对虾高位池高密度养成过程中对养殖水体多项水质指标的影响研究结果表明:投喂某商品饲料的虾池中叶绿素a、叶绿素b、叶绿素c及氨氮、亚硝酸盐氮、硝酸盐氮、活性磷酸盐、总磷含量均显著高于投喂环保型高效饲料的虾池,分别高出43%、38%、45%、46%、96%、88%、35%、50%。随着取样时间的推移,除叶绿素a、叶绿素b、叶绿素c的含量先升后降外,其余各项指标均逐渐升高。投喂环保型高效饲料的虾池各项水质指标增幅均显著低于投喂某商品饲料的虾池。说明环保型高效饲料能有效提高饲料利用率,降低水体氮、磷污染程度,有利于南美白对虾的健康养殖。
The results showed that: the chlorophyll a, chlorophyll b, chlorophyll c, chlorophyll b and chlorophyll c in shrimp ponds fed with certain commercial feed increased significantly The contents of ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, active phosphate and total phosphorus were significantly higher than that of shrimp ponds fed with environment-friendly and high-efficiency feed, which were 43%, 38%, 45%, 46% and 96% , 88%, 35%, 50%. With the passage of sampling time, the contents of chlorophyll a, chlorophyll b and chlorophyll c increased first and then decreased, and the rest of the indexes increased gradually. Shrimp ponds fed environmental friendly and efficient feed increase the water quality indicators were significantly lower than the feed of a commodity shrimp ponds. It shows that the environment-friendly and efficient feed can effectively improve feed utilization, reduce the pollution of nitrogen and phosphorus in water, which is beneficial to the healthy breeding of P. vannamei.