Is Pacific white shrimp (Penaeus vannamei) farming in India is technically efficient? — A comprehensive study

Kumaran, M.; Anand, P.S. Shyne; Kumar, J. Ashok; Ravisankar, T.; Johnson, Paul; Vasagam, K.P. Kumaraguru; Vimala, D. Deboral; ., K. Raja

doi:10.1016/j.aquaculture.2016.10.019

Cited by 41 publications

(31 citation statements)

References 26 publications

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“…During our study, the farmers have expressed that hatcheries are supplying seed produced from local brooders which yields low quality seed. The optimum age of PL12 and above is much capable to tolerate field conditions (Kumaran et al, 2017). In the present survey it was observed that most of the hatcheries are supplying PL of age 7-10 by the name of PL 12-15.…”

Section: Resultsmentioning

confidence: 70%

A Study on Soldier Cap Disorder in Penaeus vannamei from Culture Ponds of Andhra Pradesh, India

Kummari¹,

Neeraja²,

Rao³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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Section: Resultsmentioning

confidence: 70%

A Study on Soldier Cap Disorder in Penaeus vannamei from Culture Ponds of Andhra Pradesh, India

Kummari¹,

Neeraja²,

Rao³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…Initial investment cost, the returns in a year, the variable cost per year and the interest rate (8%) were used to calculate the NPV and IRR. The fixed and operational cost parameters used in the study were in line with the details obtained by Kumaran et al (). Among the aerators tested, higher ROI was obtained for IMA (49%–53%) followed by PWA (43%–46%).…”

Section: Resultsmentioning

confidence: 95%

Assessment of the new generation aeration systems efficiency and water current flow rate, its relation to the cost economics at varying salinities for Penaeus vannamei culture

et al. 2020

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The selection of aerators and correct numbers can play an essential role in reducing the cost of production in aquaculture. The new generation aerators, namely spiral leaf, air‐jet, submersible and impeller, used in aquaculture, were assessed for its aeration efficiency and energy cost compared with the commonly used paddle wheel aerator. Of the aerators tested, the impeller had the highest aeration efficiency of 2.098 kg O2/kW hr, followed by paddle wheel with 1.436 kg O2/kW hr at 20‰ salinity. The spiral and air‐jet aerators had maximum aeration efficiency of 1.326 and 1.419 kg O2/kW hr, respectively, at 35‰ salinity. The submersible aerator was not efficient as its maximum efficiency was 0.380 kg O2/kW hr. The water flow by paddle wheel was 3 ft/sec and also provides better coverage than other types of aerators. The efficiency of aerators was high in optimum salinities (20‰ and 35‰) than the low or high saline condition. The average energy cost of shrimp pond aeration per hectare was lowest for impeller, followed by paddle wheel aerator. The study provided economic comparisons of vannamei culture using different aeration systems by keeping a uniform set of economic assumptions. Shrimp farms with impellors can give 14%–25% high returns across salinities, whereas spiral leaf can provide 5% high returns at 35‰ salinity. The combination of the type of aerators and the calculated use based on the salinity of the culture systems can result in energy‐saving and also a reduction in the production cost.

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“…Farmers in both provinces attained high efficiency rates, though Khánh Hòa farmers had a larger number of farmers in the 90%-100% range. A study conducted by Kumaran et al [67] in India also showed that the mean technical efficiency of P. vannamei farms in the country was 0.9013. A study conducted by Rashid and Chen [68] in Bangladesh showed that technical efficiency was 0.82, 0.85, and 0.93 for extensive, improved extensive and semi-intensive farming methods, respectively.…”

Section: Discussionmentioning

confidence: 93%

Economic Efficiency of Extensive and Intensive Shrimp Production under Conditions of Disease and Natural Disaster Risks in Khánh Hòa and Trà Vinh Provinces, Vietnam

Nguyen

Jolly

et al. 2020

Sustainability

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Uncertainty about efficiency and sustainability of shrimp production due to diseases and climatic events may prevent Vietnam from attaining US $10 million target from shrimp exports by 2025. We surveyed 120 and 159 shrimp farmers from Khánh Hòa and Trà Vinh provinces, respectively, to obtain information on their input use, production levels and the effects of diseases and climate change events on their farm profitability. Stochastic production frontier analysis (SFA) discovered that the number of workers, crops and seed costs positively influenced farmers’ profits, while cost of chemicals and labour negatively affected the profit of Khánh Hòa farmers. The number of workers and chemical costs positively affected profits in Trà Vinh, while cost of labour and energy, the number of crops and average stocking density negatively influenced farmer profit in Trà Vinh. Number of years of schooling, experience and average size of ponds positively influenced economic efficiency, while the number of ponds and climatic change events negatively influenced efficiency in Khánh Hòa province. Age and alternative power source positively affected economic efficiency, while disease prevalence affected efficiency of Trà Vinh. All farms practicing intensive or extensive shrimp production achieved 90% efficiency. The government should encourage the wise use of resources, high-quality seeds and a sensitive balance between intensive and extensive culture to sustainably attain its national production and export goals.

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Is Pacific white shrimp (Penaeus vannamei) farming in India is technically efficient? — A comprehensive study

Cited by 41 publications

References 26 publications

A Study on Soldier Cap Disorder in Penaeus vannamei from Culture Ponds of Andhra Pradesh, India

A Study on Soldier Cap Disorder in Penaeus vannamei from Culture Ponds of Andhra Pradesh, India

Assessment of the new generation aeration systems efficiency and water current flow rate, its relation to the cost economics at varying salinities for Penaeus vannamei culture

Economic Efficiency of Extensive and Intensive Shrimp Production under Conditions of Disease and Natural Disaster Risks in Khánh Hòa and Trà Vinh Provinces, Vietnam

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