Efeito da densidade de estocagem no desenvolvimento inicial do acará-bandeira (Pterophyllum scalare)

Júnior, Lima; Pereira, Samuel Louzada; Matielo, Marcelo Darós; Mendonça, Pedro Pierro

doi:10.1590/s0102-09352013000400033

Cited by 10 publications

(6 citation statements)

References 9 publications

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“…The high stocking densities in the present study did not affect the growth of fish, making it more profitable for ornamental fish farmers (Çağiltay et al, 2017;Abe et al, 2016). Some reports such as in Guppy Poecilia reticulata and angelfish Pterophyllum scalare (Adel et al, 2013;Gonçalves Júnior et al, 2013) indicate 0.6g/L as an adequate stocking density to maintain performance and health, which is lower when compared to the present study of 1.0 g/L.…”

Section: Discussioncontrasting

confidence: 45%

The growth performance and parasite load of angelfish juveniles Pterophyllum scalare kept at different stocking densities in two rearing systems

Santos,

Zanella,

Ferreira

et al. 2024

Braz. J. Biol.

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This study evaluated the growth performance and parasite load of angelfish juveniles Pterophyllum scalare kept at different stocking densities using two rearing systems. The experiment was conducted in a factorial design (4x2) with four stocking densities (0.1, 0.4, 0.7, and 1.0 g/L), two type of aquarium tanks (glass and ceramic aquariums), and four replicates. The experiment lasted 60 days using 148 juvenile fish (3.05 ± 0.09 g) randomly placed in 32 aquariums (50 L) equipped with filters and aeration. All fish received two meals a day ad libitum (8:00 and 16:00). Water quality parameters such as temperature, dissolved oxygen, pH, and total ammonia were measured. At the end of the experiment, all fish were measured and weighed to determine growth performance and then subjected to parasitological analysis. The data were analyzed with a two-way ANOVA with post-hoc Tukey test (p<0.05). No effects on growth performance at different stocking densities were observed. However, there was an increase in Capillaria pterophylli infestation in the high stocking density within ceramic aquariums. Thus, this study recommends the use of 1.0 g/L for the intensive aquaculture system of freshwater angelfish, and applying cleaning management to avoid parasite infestation, particularly in ceramic aquariums.

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Section: Discussioncontrasting

confidence: 45%

The growth performance and parasite load of angelfish juveniles Pterophyllum scalare kept at different stocking densities in two rearing systems

Santos,

Zanella,

Ferreira

et al. 2024

Braz. J. Biol.

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“…In addition to the reduction in water quality, there was also a reduction in the productivity performance as stocking density increased. This has been observed in several species, such as Horabagrus brachysoma , Oreochromis niloticus , Trichogaster trichopterus , Pterophyllum scalare, Carassius auratus and Heros severus , due to the behaviour alterations that lead to aggression for feed or territories at high stocking densities (Abe et al, ; Barcellos, Nicolaiewsky, Souza, & Lulhier, ; Gonçalves Júnior, Pereira, Matielo, & Mendonça, ; Gonçalves Júnior, Mendonça, Pereira, Matielo, & Amorim, ; Sahoo, Giri, Chandra, & Sahu, ; Syarifuddin & Kramer, ).…”

Section: Discussionmentioning

confidence: 96%

Growth of Amazon ornamental fish Nannostomus beckfordi larvae (Steindachner, 1876) submitted to different stocking densities and feeding management in captivity conditions

et al. 2019

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The study evaluated productive performance of larvae Nannostomus beckfordi submitted to feeding management (Experiment one) and different stock density (Experiment two) in captivity conditions. The first experiment evaluated feeding rate (100 and 200 nauplii of artemia larvae −1 day −1 ) and feeding frequency (2 and 4× per day). Second experiment evaluated different stock density (1, 5, 10, 20, 40 larvae per litre). At the end of 15 days, for both experiment, the survival and productive performance such as total length (TL), final weight (FW), specific development rate (SDR), specific growth rate (SGR), uniformity for weight (UW) uniformity for length (UL) and relative condition factor (Kr) was determined. For the main results, there is no significant difference to the rate and feeding frequency. The stock density has no significant difference for UW, Kr and survival. Nonetheless, a reduction in the TL, FW, SDR, SGR and FW with the increase in density (20 for 40 larvae per litre) was observed. Thus, for this species Nannostomus beckfordi during to initial stage using exogenous feeding, it is recommended 20 larvae per litre fed with 100 nauplii per larvae having two meals per day.

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“…Monthly biometric evaluations were performed on all fish to measure the total length, standard length, weight, feed intake and subsequent determination of weight gain (final weight − initial weight); total length gain (final total length − initial total length); standard length gain (final standard length − initial standard length); specific growth rate (SGR) [ln (final weight in grams) − ln (initial weight in grams) × 100/ t (days of experiment)]; Fulton's condition factor (K) (final body weight/total length (cm) 3 ]; feed conversion ratio (FCR) [feed intake (kg)/weight gain (g)], uniformity (U) [( N ± 20%)/Nt), Nt = total number of fish in each experimental unit; and N ± 20% = number of animals with the parameter weight/length within ±20% around the mean of the experimental unit], and survival rate [(Final number of fish/initial number of fish) × 100] (Furuya et al, 1998; Gonçalves‐Junior et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Comparative effects of autochthonous single‐strain and multi‐strain probiotics on the productive performance and disease resistance in Colossoma macropomum (Cuvier, 1818)

Dias

Alves

Barros

et al. 2022

Aquaculture Research

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This study evaluated the effects of autochthonous single‐strain and multi‐strain (mix) probiotics on the zootechnical performance and sanitary conditions of juvenile neotropical fish. Fingerlings of tambaqui (Colossoma macropomum) were fed three diets of single‐strain probiotics (two Enterococcus faecium strains and one Bacillus cereus autochthonous strain) and a multi‐strain probiotic diet (a mix of three probiotic strains) for 120 days. After dietary supplementation, 90 tambaquis were intraperitoneally injected with Aeromonas hydrophila at a concentration of 1.8 × 108 CFU·g−1. Clinical signs of disease, infectious intensity and accumulated mortality rates were evaluated. The use of diets containing probiotics, regardless of strain, enhanced productive performance from 90 experimental days (p < 0.05). The multi‐strain probiotics reduced the presence of potentially pathogenic bacteria in the intestine. Fish fed probiotics showed improved resistance to A. hydrophila infection, while the diets containing B. cereus (an autochthonous probiotic) and multi‐strain probiotic promoted the lowest mortality rates and higher leucocyte and thrombocyte counts (p < 0.05). The results revealed that the use of probiotics as a single autochthonous or multi‐strain probiotic enhanced fish growth, prevented dysbiosis and increased disease resistance.

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Efeito da densidade de estocagem no desenvolvimento inicial do acará-bandeira (Pterophyllum scalare)

Abstract: Efeito da densidade de estocagem no desenvolvimento inicial doacará-bandeira (Pterophyllum scalare) [

Cited by 10 publications

References 9 publications

The growth performance and parasite load of angelfish juveniles Pterophyllum scalare kept at different stocking densities in two rearing systems

The growth performance and parasite load of angelfish juveniles Pterophyllum scalare kept at different stocking densities in two rearing systems

Growth of Amazon ornamental fish Nannostomus beckfordi larvae (Steindachner, 1876) submitted to different stocking densities and feeding management in captivity conditions

Comparative effects of autochthonous single‐strain and multi‐strain probiotics on the productive performance and disease resistance in Colossoma macropomum (Cuvier, 1818)

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