Replacement of fish meal by protein soybean concentrate in practical diets for Pacific white shrimp

• Main Authors: Mariana Soares, Débora Machado Fracalossi, Luiz Eduardo Lima de Freitas, Marysol Santos Rodrigues, Joselle Cursino Redig, José Luiz Pedreira Mouriño, Walter Quadros Seiffert, Felipe do Nascimento Vieira
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Zootecnia 2015-10-01
• Series: Revista Brasileira de Zootecnia
• Subjects: Glycine max; growth; Litopenaeus vannamei; nutrition; protein replacement
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001000343&lng=en&tlng=en

ABSTRACTThe objective of this work was to evaluate the performance of Litopenaeus vannameifed different levels (0, 25, 50, 75, and 100%) of soybean protein concentrate (63.07% crude protein, CP) to replace fish meal-by product (61.24% CP). The study was conducted in clear water in fifteen 800 L tanks equipped with aeration systems, constant heating (29 ºC), and daily water exchange (30%). Each tank was stocked with 37.5 shrimp/m3 (3.03±0.14 g). Feed was supplied four times a day, at 6% of the initial biomass, adjusted daily. After 42 days, the weight gain of shrimp fed diets with 0 and 25% protein replacement was higher than that observed in shrimp fed 100% replacement, and there were no differences among those fed the other diets. Feed efficiency and survival did not differ among shrimp fed different protein replacements. There was a negative linear trend for growth parameters and feed intake as protein replacement with soybean protein concentrate increased. Fish meal by-product can be replaced by up to 75% of soybean protein concentrate, with no harm to the growth of Pacific white shrimp.