Performance and economic viability of tambaqui, Colossoma macropomum, selectively bred for weight gain
Acta amaz
;
50(2): 108-114, abr - jun. 2020.
Article
in English
| LILACS
| ID: biblio-1118103
ABSTRACT
Tambaqui, Colossoma macropomum, is one of the most produced species in Brazilian fish farming, which has boosted the development of new technologies to increase its productivity. The aim of this study was to evaluate production performance in two second-generation tambaqui stocks selectively bred for weight gain in a semi-intensive rearing system and assess its influence on total production cost. We analyzed 300 fish (initial mean weight and standard length of 160 g and 17 cm, respectively) of two families (A and B, 150 fish each). The fish were individually marked with microchips and stocked in an 800-m2 excavated pond. For economic analysis, the obtained performance data were extrapolated for a fish farm with a 10-ha pond, adopting the Total Production Cost methodology. After 270 days of farming, the fish from family B were significantly superior (p < 0.05) for all analyzed performance parameters (final weight = 1965.0 g; weight gain = 1786.7 g; biomass gain = 255.2 kg) and morphometric growth in relation to the fish from family A (final weight = 1881.0 g; weight gain = 1737.5 g; biomass gain 217.7 kg). The total production cost estimations indicated that fish from family B would allow for a 4% reduction in the average fixed cost and a 1% decrease in the total average production cost. (AU)
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Index:
LILACS (Americas)
Main subject:
Aquaculture
/
Costs and Cost Analysis
/
Genetic Enhancement
/
Fisheries
Type of study:
Health economic evaluation
Language:
English
Journal:
Acta amaz
Journal subject:
Science
Year:
2020
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Delicious Fish Agroindústria e Comércio de Pescados LTDA/BR
/
Universidade Estadual de Mato Grosso/BR
/
Universidade Federal de Mato Grosso do Sul/BR
/
Universidade Federal de Mato Grosso/BR
/
Universidade Federal de Mato Grosso,/BR
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