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A Response-Surface Analysis of Temperature-Salinity on Growth and Survival of the Caridean Shrimp, Macrobrachium americanum (Bate, 1868)

A Response-Surface Analysis of Temperature-Salinity on Growth and Survival of the Caridean Shrimp, Macrobrachium americanum (Bate, 1868)

Fermín López-Uriostegui1, Jesus T. Ponce-Palafox2*, Fabiola Lango-Reynoso1, María R. Castañeda-Chávez1, Itzel Galaviz-Villa1, Sergio Castillo-Vargasmachuca2 and Arturo Ruiz Luna3

1Postgraduate Doctorate in Aquaculture, National Technology of Mexico/Boca del Río Institute Technology Km. 12 Road Veracruz-Córdoba. Veracruz 94290, Mexico
2Nayarit State University, Coastal Bioengineering Laboratory, Nayarit, 63000, Mexico 3Center for Research in Food and Development A.C. Mazatlan unit. Mazatlan Sinaloa, 82000, Mexico

*      Corresponding author: jesus.ponce@usa.net

ABSTRACT

The effect of different levels of temperature (23, 26, 29, and 32ºC) and salinity (0, 5, and 10‰) on growth performance and survival of Macrobrachium americanum was studied under controlled laboratory conditions. Sub-adult’s prawns (10.29 ± 0.27 g) were reared in these conditions for 72 days. Each experimental group contained 25 prawns in an approximately 100-L water capacity tank. The experimental design was factorial with three repetitions per treatment. Prawns were fed (commercial shrimp feed with 35% protein, 12% lipid) daily at a ratio of 10% body weight, twice a day (10:00 and 18:00 h). The optimal growth intervals were from 26 to 29°C and from 3 to 11‰ of salinity, and survival was at 23 to 29°C and 0 to 5‰. The greatest effect of the temperature-salinity interaction was on the upper extremes of response. The analysis of response surfaces showed that the final weight and weight gain increased as temperature increased and, in the upper end, salinity had a linear synergistic effect, with a greater effect on growth at high temperatures. M. americanum attains its best growth in freshwater and low salinities(< 11‰) in subtropical zones. 
 

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Pakistan Journal of Zoology

October

Vol. 52, Iss. 5, Pages 1631-2026

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