Performance of three diets with different protein: energy ratios on the culture of the pacific white shrimp, Litopenaeus vannamei, under practical descending temperature conditions

Authors

  • Luis Martinez Cordova
  • Marcel Martinez Porchas
  • Martin Perez Velazquez
  • Mayra Gonzalez Félix

DOI:

https://doi.org/10.5088/atlântica.v32i1.1557

Keywords:

Aqüicultura de inverno, Litopenaeus vannamei, nutrição de camarão, relações de proteína, energía, baixa temperatura, low temperature, protein, energy ratio, shrimp nutrition, winter aquaculture.

Abstract

Three diets with different protein:energy ratios: 66.7, 77.8, and 87.5 mg CP/kcal were evaluated for Litopenaeus vannamei farming in a 10-week trial during the fall season in Northwestern Mexico when temperature was descending. Experimental units consisted of nine 4000-L plastic tanks. For the complete 10-week set of data, no significant differences in total weight gain (2.60 to 2.83 g), weekly growth (0.26 to 0.28 g/week), percent of weight gain (176 to 188 %), fed conversion ratio (2.9 to 3.2), and survival (64.3 to 72.5%) were found among diets. Data analyzed separately, considering the first and the last 5 weeks of study, showed to be different. For the first 5 weeks (temperature > 18°C), no differences in weight gain (2.20 to 2.42 g), weekly weight gain (0.44 to 0.48 g/week) percent weight gain (147 to 161 %), and FCR (2.1 to 2.2) were observed among diets. For the last 5 weeks (Temperature < 17°C), all the production parameters were very poor and significant differences were found between diets, with the best results observed in the treatment 66.7 mgCP/kcal and without differences between the other two diets. The preliminary results found in the present study strongly suggest an effect of protein:energy ratio on the productive performance of Pacific white shrimp at low temperature.

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Author Biographies

Marcel Martinez Porchas

Atua no Centro de Investigación en Alimentación y Desarrollo - México

Martin Perez Velazquez

Atua no Centro de Investigación en Alimentación y Desarrollo - México

Mayra Gonzalez Félix

Atua no Centro de Investigación en Alimentación y Desarrollo - México

Published

2011-03-27

How to Cite

Cordova, L. M., Porchas, M. M., Velazquez, M. P., & Félix, M. G. (2011). Performance of three diets with different protein: energy ratios on the culture of the pacific white shrimp, Litopenaeus vannamei, under practical descending temperature conditions. Atlântica (Rio Grande), 32(1), 111–118. https://doi.org/10.5088/atlântica.v32i1.1557

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Artigos