Avaliação da exigência de proteína bruta para alevinos de pacamã Lophiosilurus alexandri Steindachner, 1876

Souza, Márcia Gomes de; Seabra, Ana Gabriela Lins; Balen, Rafael Ernesto; Costa, Mateus Matiuzzi da; Santos, Lílian Dena dos; Meurer, Fábio

doi:10.5039/agraria.v9i2a3092

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…As in the confinement of endemic fish species, the lack of information on the nutritional requirements of hybrids limits the production systems of these animals (De Souza et al, 2014). In most cases, the diets used are inadequate for the nutritional requirements of hybrids, especially regarding crude protein requirements.…”

Section: Introductionmentioning

confidence: 99%

Crude protein requirements in feeding for hybrid jundiara (Pseudoplatystoma fasciatum x Leiarius marmoratus)

Barros

Luz

Ramos

et al. 2020

RSD

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The objective of this study was to determine the crude protein requirements for juvenile jundiara fish, a hybrid of Pseudoplatystoma fasciatum X Leiarius marmoratus. A total of 240 juveniles of the hybrid, with an initial mean weight of 8.4 ± 1.41 g, were distributed in 15 fiberglass tanks (170 L) in a closed water recirculation and constant aeration system, with a density of 16 fish/tank. The experimental design was completely randomized with five treatments and three replications. The treatments consisted of diets with 32, 34, 36, 38 and 40% crude protein. Seventy days into the experiment the final fish weight and feed intake were measured. Two specimens from each experimental unit were collected for evaluation of carcass chemical composition, nutritional efficiency and blood parameters. The increase in crude protein content promoted the significant, increasing linear effect for mean weight gain, mean feed intake and specific growth rate, and decreasing effect for feed conversion. Significant differences were also observed in carcass chemical composition, nutritional efficiency, total plasma protein, glucose, cholesterol, triglycerides and lipase enzymatic activity. Thus, the increase in crude protein levels of up to 40% in jundiara diets promotes improvement in the productive performance of juvenile jundiara.

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Section: Introductionmentioning

confidence: 99%

Crude protein requirements in feeding for hybrid jundiara (Pseudoplatystoma fasciatum x Leiarius marmoratus)

Barros

Luz

Ramos

et al. 2020

RSD

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Flour and fish residue oil in pacamã (Lophiosilurus alexandri): performance, apparent digestibility and carcass composition

Silva,

Navarro

2024

Acta Sci. Anim. Sci.

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A study was carried out to evaluate the effect of the partial replacement of fish meal and fish oil with fish meal oil and residue in diets for pacamã fry (Lophiosilurus alexandri). Eight isoproteic and isoenergetic diets were formulated with 4 levels of substitution of fish meal for fish residue meal (0, 10, 20 and 30%) with two sources of oil (fish and fish residue) constituting a factorial design. 4x2 with 3 repetitions per treatment. Regarding the digestibility of the diets, there was no statistical difference between the different types of oils used, however there was a linear increase in digestibility with the increase in the levels of fish meal substitution by fish meal flour. Fish meal flour can replace fish meal in pacamã fry diets by up to 30% without impairing performance or carcass characteristics. Fish waste oil can fully replace fish oil in pacamã diets.

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Avaliação da exigência de proteína bruta para alevinos de pacamã Lophiosilurus alexandri Steindachner, 1876

Cited by 2 publications

References 23 publications

Crude protein requirements in feeding for hybrid jundiara (Pseudoplatystoma fasciatum x Leiarius marmoratus)

Crude protein requirements in feeding for hybrid jundiara (Pseudoplatystoma fasciatum x Leiarius marmoratus)

Flour and fish residue oil in pacamã (Lophiosilurus alexandri): performance, apparent digestibility and carcass composition

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