Crecimiento del camarón de agua dulce Macrobrachium jelskii (Miers, 1877), en lagunas de cultivo
2010; Volume: 28; Issue: 2 Linguagem: Inglês
ISSN
2542-3436
AutoresTrinidad Urbano, Annie Silva-A, Lorenis Medina, Carlos A. Moreno, Miguel Guevara, César Graziani,
Tópico(s)Crustacean biology and ecology
ResumoIn order to use the shrimp Macrobrachium jelskii as a protein source in food processing for fish, it was evaluated the appropriate period of crop and the growth of the shrimp in earthen ponds, using two diets and two stocking densities. The shrimps were collected in the Cano Manamo, Tucupita, Amacuro Delta State, and after identification and selection to a weight of 0,34 ± 0,087 g, they were stocked in cages of 3 m 2 within ponds. Four treatments were tested: T 1 : food with 20% protein and density of 40 shrimp/m 2 ; T 2 : food with 20% protein and density of 80 ind/m 2 ; T 3 : food with 28% protein and density of 40 ind/m 2 and T 4 : food with 28% protein and density of 80 ind/ m 2 , with three replicates per treatment. The shrimp were fed with a daily ration calculated between 20 and 10% of the existing biomass. The samples for observation of average weight and length were made monthly. Daily measurements of temperature, oxygen and pH of the water of the ponds, were performed. The total crop was conducted at 140 days of cultivation; however, the analysis of the results showed that higher weights and lengths were reached at 100 days, when differences were observed in both variables due to the factor diet, indicating that
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