Replacement of fishmeal for soy protein concentrate in diets for juvenile Litopenaeus vannamei in biofloc-based rearing system

Revista Brasileira de Zootecnia (Print)

Silva, Bruno Corrêa da¹  Jatobá, Adolfo²  Mouriño, José Luiz Pedreira³  Vieira, Felipe do Nascimento³  Seiffert, Walter Quadros³  Soares, Mariana³ 

[1] Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina, Florianópolis, Brazil;Instituto Federal de Educação, Ciência e Tecnologia Catarinense, Araquari, Brazil;Universidade Federal de Santa Catarina, Florianópolis, Brazil

关键词: aquaculture;    intensive system;    nutrition;    protein sources.;   

DOI  :  10.1590/s1806-92902017000900001

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

This study aimed to assess the final body weight, weekly weight gain, yield, apparent feed efficiency, protein efficiency ratio, and feed intake of the Pacific white shrimp (Litopenaeus vannamei) fed four diets containing different levels of soy protein concentrate (SPC) as a replacement for fishmeal, reared in a super-intensive biofloc system. Diets consisted of replacing 209 g kg-1 fishmeal at 0, 33, 66, and 100% SPC. Shrimp were raised in a biofloc system using twelve experimental units stocked with 250 shrimp m-3 under constant aeration (O2>5mg L-1) and temperature (29±0.5 °C). No significant differences among treatments were observed based on water quality parameters. Shrimp fed diets with 0 and 33% substitution exhibited the highest weekly growth (1.88 and 1.79 g per week) and final weights (15.2 and 14.7 g) compared with shrimp fed the 66 and 100% replacement. A lower feed intake was observed for shrimp fed the 33% SPC diet (3.18 kg per experimental unit) compared with 0% replacement (3.62 kg). Shrimp fed the 33% replacement achieved a similar performance and lower feed intake than animals fed diet without replacement.

【 授权许可】

Unknown