EVALUATION OF WEIGHT GAIN IN POST-LARVAE OF MARINE SHRIMP Litopenaeus vannamei (BOONE, 1931) FED ON FISH SPECIES WHICH COMPOSE THE MARINE SHRIMP FISHERIES BYCATCH

• Autor(a) principal: Santos, Carlos Henrique dos Anjos dos
• Data de Publicação: 2007
• Outros Autores: Lourenço, Jullyermes Araújo, Costa, Henrique José Mascarenhas dos Santos, Igarashi, Marco Antonio
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência animal brasileira (Online)
• Texto Completo: https://revistas.ufg.br/vet/article/view/1153

The objective of this study was to evaluate the early development of Litopenaeus vannamei post-larvae in freshwater fed on fish species that compose the shrimp fisheries bycatch. Forty eight post-larvae with initial average of weight 0.008±0.001 g and length 11±0.5 mm were cultured. For each treatment were used ration of shrimp with 45% crude protein, Opisthonema oglinum (OO) and Chloroscombus chrysurus (CC), respectively. The treatment were arranged in a randomized complete blocks desing with 4 replications. The stocking density consisted of 4 shrimp per aquarium. During the 75 days, the shrimp were fed “ad libitum”. The average temperature final was 27.1±0.8ºC for the 3 treatments and final average pH 7.68±0.27 for the shrimp feed on RC and 7.66±0.22 for the feed on OO and CC, respectively. The final weight of the shrimp at the 75 days were 0.560±0.096 g, 0.495±0.091 g e 0.500±0.101 g and final length were 62.1±0.9 mm, 57.0±0.8 mm e 56.2±0.9 mm for the treatments RC, OO and CC, respectively. The results of final weight and length showed no statistical differences among treatments tested. The survival rate was 87.5±14.4%, 68.8±12.5% and 62.5±14.3% for the RC, OO and CC, respectively. We concluded that the use of shrimp ration, fishes O. oglinum and C. chrysurus as food for initial development of post-larvae shrimp can show similar results. KEY WORDS: Chloroscombus chrysurus, diets, Litopenaeus vannamei, marine shrimp, Opisthonema oglinum.