Study on nitrogen and phosphorus budgets and production performance in higher-place pond of Litopenaeus vannamei

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Jinliang LI; Chen Xuefen; Lai Qiuming; Lu Chunyu; Chen Jinling; Su Shuye

Type of Document:
Scholarly Article


South China Fisheries Science

Date of Publication:

Place of Publication:
Not Available


Abstract: Nitrogen and phosphorus budgets in the higher-place ponds of Litopenaeus vannamei were studied systematically to investigate the effects of stocking seasons,shrimp larvae strains and grading culture on shrimp production.Results indicate that feed is the main source of nitrogen and phosphorus inputs,accounting for 91.76%~93.68% and 94.55%~96.97% of total inputs,respectively,while 29.46%~40.46% of total nitrogen and 12.64%~17.41% of total phosphorus were deposited into harvested shrimp;24.63%~54.52% of total nitrogen and 23.03%~59.02% of total phosphorous were discharged into effluent;14.10%~44.59% of total nitrogen and 27.59%~62.25% of total phosphorous were accumulated in pond sediment.Shrimp production is significantly affected by different stocking seasons and shrimp larvae strains.The average growth rate of trial ZS in summer reaches 0.175 g

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