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3 results on '"Colossoma macropomum x Piaractus brachypomus"'

1. Quality assessment of amazonian fish from fish farming stored on ice.

Author

Mendes Silva, Shadai, Buitrago Ramirez, Juan Rafael, Mendes Silva, Shekinah, Dantas Filho, Jerônimo Vieira, Pandolfo Marmentini, Regiane, de Vargas Schons, Sandro, and Cavali, Jucilene

Subjects
FISH farming, TAMBAQUI, FOOD chemistry, ICE fishing, COAGULASE, MEAT quality
Abstract

Copyright of Acta Veterinaria Brasilica is the property of Acta Veterinaria Brasilica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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2. Methionine plus cystine to lysine ratio in diets for tambatinga fingerlings

Author

Dayana da Conceição da Costa, Marcos Antonio Delmondes Bomfim, Felipe Barbosa Ribeiro, Jefferson Costa de Siqueira, Neliane Galvão Porto, and Rafael da Silva Marchão

Subjects
Colossoma macropomum x Piaractus brachypomus, sulfur amino acids, ideal protein concept., Agriculture (General), S1-972
Abstract

ABSTRACT Among a variety of hybrids produced in Brazil, tambatinga is obtained from the crossing of a tambaqui female with a pirapitinga male. Although rapid weight gain in less time is an attractive characteristic from a commercial viewpoint, the information on its nutritional requirements, especially amino acid requirements, is limited. As corn and soybean meal-based diets available for fish contain deficient levels of essential amino acid methionine, our objective was to determine the digestible methionine plus cystine to lysine ratio in diets for tambatinga fingerlings. We used 900 fish with initial weights varying from 1.49 ±0.59 to 4.14 ±1.70 g, and they were fed six types of diets with different digestible methionine plus cystine to lysine ratios (50, 55, 60, 65, 70, and 75%). Performance parameters such as food efficiency, body depositions of protein, fat, and ash, and nitrogen retention efficiency were evaluated. The increase of digestible methionine plus cystine to lysine ratio in the diet improved quadraticly the feed intake, consumption of digestible methionine plus cystine, weight gain, specific growth rate and feed conversion, protein deposition and body ash and retention efficiency nitrogen until the estimated ratios of 57%, 73%, 58%, 58% and 59%, 59%, 58% and 60%, respectively; and reduced linearly the efficiency of using methionine plus cystine for the weight gain. On the other hand, body fat deposition was not affected. We concluded that the digestible methionine plus cystine: lysine ratio in the rations for tambatinga fingerlings is 59%, for provide better performance and body protein deposition.

Published
2021
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3. Cachamoto hybrid (Piaractus brachypomus macropomum x) growth in a water recirculation system

Author

López, Pedro and Anzoátegui, Denny

Subjects
crecimiento cachamoto, sistemas recirculación de agua, growth, recirculation systems, cachamoto culture, Colossoma macropomum x Piaractus brachypomus
Abstract

Se evaluó el crecimiento en peso del híbrido cachamoto (Colossoma macropomum x Piaractus brachypomus) cultivado en un sistema de recirculación de agua (SRA) en el Centro Piscícola del Orinoco (CPO) ubicado en el Jardín Botánico del Orinoco municipio Héres estado Bolívar. La densidad de siembra fue de 24 peces/ m3. Los cultivos se llevaron a cabo en tres tanques tipo australianos con una capacidad de 82,11 m3. Fueron sembrados 2.000 peces en cada tanque con un peso promedio inicial de 3,433±1,504 g. Los resultados obtenidos mostraron una ganancia en peso de 627,567±43,726 g en 210 días de cultivo obteniendo un peso promedio final de 651,3±14,402 g. El crecimiento en peso absoluto fue de 2,99±0,206 g/día mientras que el crecimiento en peso específico fue 5,893±0,215%/día. La tasa de conversión alimenticia obtenida para el hibrido bajo las condiciones de cultivo fue de 1,6±0,642. Los parámetros físico químicos del agua fueron O.D 8,246±3,708 mg.l-1, pH 7,904±0,540, Temperatura 30,186±0,949 ºC, NH4 + 0.360±0.215 mg.l-1, NH3 0,065±0,026 mg.l-1 y NO2 - 0,073±0,059 mg.l-1 los cuales se mantuvieron dentro de los rangos mínimos aceptables para la especie. El crecimiento de la especie responde favorablemente al cultivo en sistemas de recirculación de agua. Growth was evaluated by weight of the hybrid cachamoto (Colossoma macropomum x Piaractus brachypomus) grown in a recirculation system (RAS) in the Orinoco Fish Farming Center (CPO) located in the Orinoco Botanical Garden Township Héres Bolivar State. Stocking density was 24 fish/m3. The cultures were carried out in three Australian type tanks with a capacity of 82.11 m3. 2000 fish were stocked in each tank with an average weight of 3.433±1.504 initial g. The results showed a weight gain of 627.567±43.726 g in 210 days of culture to obtain a final average weight of 651.3±14.402 g. The growth in absolute weight was 2.99±0.206 g/day while the growth in specific gravity 5.893±0.215 %/day. The feed conversion ratio obtained for the hybrid under culture conditions was 1.6±0.642. The physicochemical parameters of the culture water were O.D 8,246±3,708 mg.l-1, pH 7,904±0,540, Temperature 30,186±0,949 ºC, NH4 + 0.360±0.215 mg.l-1, NH3 0,065±0,026 mg.l-1 y NO2 - 0,073±0,059 mg.l-1 within acceptable ranges for the species minimum. The fattening of the species tested responded favorably to the culture in recirculation systems.

Published
2012

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