Estudo sistemático da família Cichlidae na região central do Rio Grande do Sul. I Gêneros: Aequidens, Chichlaurus e Geophagus

Weis, Maria Lacy Cezimbra; Bossemeyer, Ilca Marion Knewitz; Lippold, Horst Oscar

doi:10.5902/2179460x24920

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The group Geophagus covers 10 species/lineages (Argolo et al, 2020), and it is popularly known as cará or acará. It presents gray coloration with shades varying from blue to green (Weis et al, 1981), making it a much appreciated species in fishkeeping (Beatty et al, 2013). According to Franco (1999), the species presents good nutritional characteristics for human consumption; however, quantitative data on its commercial production, processing and consumption are scarce.…”

Section: /8mentioning

confidence: 99%

GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES

et al. 2021

View full text Add to dashboard Cite

The aim of this study was to evaluate the growth performance of Geophagus brasiliensis rearedb under distinct temperatures (24.3 ± 0.9, 28.1 ± 1.0, and 31.7 ± 0.8°C) and feeding regimes (apparent satiety and a supply of 4% of the total biomass). About 500 wild-caught individuals were sorted and identified, to screen 180 fish to be used in the experiment (6.81 ± 1.15 g and 7.51 ± 0.47 cm). After a 55-day acclimatization period, the fish were distributed in experimental tanks, considering a double factorial randomized blocks scheme, composed of six treatments and three replicates. Growth performance parameters, somatic indexes and carcass yield were evaluated at the end of the experimental period (72 days). Fish fed to the point of apparent satiety presented higher (p <0.05) final weight, weight gain, specific growth rate and hepatosomatic index. The animals reared at a temperature of 24.3°C displayed higher (p <0.05) final weight, weight gain, specific growth, hepatosomatic index, lower visceral fat, and feed conversion index. It was concluded that G. brasiliensis presents higher productive indexes when fed until apparent satiety and reared in temperatures close to 24.3°C.

show abstract

Section: /8mentioning

confidence: 99%