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Archivos Latinoamericanos de Produccion Animal
Asociacion Latinoamericana de Produccion Animal
ISSN: 1022-1301
EISSN: 2075-8359
Vol. 13, No. 3, 2005, pp. 87-91
Bioline Code: la05012
Full paper language: Spanish
Document type: Research Article
Document available free of charge

Archivos Latinoamericanos de Produccion Animal, Vol. 13, No. 3, 2005, pp. 87-91

 es Engorda final de tilápias ( Oreochromis niloticus check for this species in other resources ) no meio-oeste catarinense no per#237;odo de ver#227;o com alevinos nascidos no outono-inverno oriundos do litoral de Santa Catarina (BRASIL)
Á. Graeff, H. Amaral Junior

Resumen

Este estudo tem por objetivo verificar, atrav#233;s da análise do crescimento (peso e comprimento), sobrevivência, convers#227;o alimentar aparente e biomassa total, a viabilidade zoot#233;cnica de cultivos de tilápias nilóticas ( Oreochromis niloticus check for this species in other resources ) na regi#227;o meio-oeste catarinense no per#237;odo de ver#227;o. O experimento foi conduzido na Unidade de Piscicultura da EPAGRI, em três viveiros escavados com 180 metros quadrados cada um. Iniciou em 17 de setembro de 2001 quando todos foram povoados com alevinos com comprimento m#233;dio de 7.0 cm e peso m#233;dio de 7.3 g na densidade de 3 peixes por metro quadrado no viveiro 1 e 2 e no viveiro 3 com 1.3 peixes por metro quadrado. O experimento terminou em 19 de mar#231;o de 2002, perfazendo 180 dias. A ra#231;#227;o utilizada para os peixes continha 28% prote#237;na bruta e 2800 kcal/kg de ra#231;#227;o e foi oferecido em duas vezes na quantidade de 5% do peso vivo do lote por dia, sendo reajustada a cada 30 dias conforme seu crescimento em peso. Amostras de 35% do lote total, de cada viveiro, foram medidos e pesados mensalmente. Ao termino do cultivo, os pesos m#233;dios foram 250.6; 272.3 e 296.3 g , a biomassa total de 2.510,5; 3040.5 e 1402.0 kg, a sobrevivência de 33.33; 37.22 e 36.40% e a convers#227;o alimentar aparente de 1.77; 2.07 e 1.38 respectivamente dos tratamentos I, II e III. Os resultados mostram a viabilidade zoot#233;cnica da instala#231;#227;o de cultivos intensivos de tilápias nilóticas no per#237;odo de ver#227;o na regi#227;o meio-oeste de Santa Catarina.

Palabras-clave
Fattening, Oreochromis niloticus, seasonality, tilápia nilótica.

 
 en Finishing of tilapia niloticus ( Oreochromis niloticus check for this species in other resources ) in the midwest of Santa Catarina State in Summer using Autumn and Winter-born coastal fingerlings
Á. Graeff, H. Amaral Junior

Abstract

The objective of this research was to verify the zootechnical viability of culturing tilapia niloticus in midwestern Santa Catarina in Summer, based on the criteria of growth in length and weight, survival rate, apparent feed conversion and total biomass. The experiment was conducted in three dug ponds of 180 m2 area each. On September 17th, 2001 all the ponds were stocked with fingerlings of 7.0 cm mean length and 7.3 mg mean weight, at a density of 3 fish/m2 in ponds 1 and 2 and 1.3 fish/m2 in pond 3. After 180 days, the experiment ended on March 19th, 2002. Feed, with 28% crude protein and 2800 kcal/kg, was offered twice daily in the total quantity of 5% of liveweight of the lot, being readjusted every 30 days. Monthly sampling was done using 35% of each lot. At the end of the culture period mean weights per individual were 250.6, 272.3, and 296.3 g; total biomass figures were 2380.2, 3040.5 and 1402.0 kg; survival rates were 33.33, 37.22, and 36.40%; and apparent feed conversions were 1.77, 2.07, and 1.38 for treatments (ponds) I, II, and III, respectively. These results demonstrate the biological feasibility of intensive culture of tilapia niloticus during the Summer season in the region in question.

Keywords
Fattening, Oreochromis niloticus, seasonality, tilápia nilótica.

 
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