SUBSTITUIÇÃO DO FARELO DE MILHO POR FARINHA DE MANGA EM DIETAS PARA TAMBAQUI Colossoma macropomum JUVENIL: CRESCIMENTO E PARÂMETROS METABÓLICOS

Abstract

The effect on tambaqui fingerlings performance caused by diets containing two different carbohydrate sources was evaluated. Four isoproteic diets with different mango meal concentrations (0, 33, 66 and 100%) replacing cornmeal were tested. The feeding trial lasted 45 days and the feeding rate was 8% of total biomass. 240 tambaqui fingerlings with an initial weight average of 3.66g were distributed in 12 500-liter tanks in a recirculating water system with biofilter. Performance, feed intake, carcass yield, survival, total cholesterol, plasmatic free amino acids, hepatic aspartate aminotransferase(AST), hepatic glycogen and plasma glucose values were evaluated. The results showed that weight gain, daily weight gain, specific growth rate, apparent food consumption, cholesterol, AST and glycogen showed higher values in the treatments with the highest levels of mango meal. Apparent feed conversion, carcass yield, survival and plasma glucose were not affected by the two sources of carbohydrates tested. In conclusion, mango meal used in a practical diet for tambaqui improved growth performance.

Extracellular expression, purification and bioreactor production of tambaqui (Colossoma macropomum) growth hormone in the yeast Komagataella phaffii (formerly Pichia pastoris)

“…The 100% identity between the gene sequence described in here and the sequence deposited in GenBank (Souza et al 2016) demonstrated the reliability of our results. This high similarity is related to that the GH coding region tends to be highly conserved among different vertebrate groups, therefore the GH gene has been used to evaluate evolutionary relationships among fish at different taxonomic levels (Meier et al 2006;Bart et al 2010;Kamenskaya and Brykov 2020).…”

“…The sequencing of the fragment revealed it to be the cDNA of mature tambaqui GH. The comparative analysis of the predicted amino acid sequence had 100% identity with the tGH sequence deposited by Souza et al (2016) (GenBank accession # ANG09167.1), as well as high similarity with GH sequences from other teleost species (Table 1). Translational analysis of the tGH sequence revealed a polypeptide of 186 amino acid residues including the five conserved cysteine residues responsible for the formation of the disulfide bridges that are essential for maintaining the structural integrity and biological activity of the molecule (Chang et al 1992) and two N-glycosylation sites at positions 125 and 177 (Figure 1).…”

Non-Starch Polysaccharide in Diets for Hybrid Surubim: Effects on Metabolism Plasticity

“…The metabolic responses of the surubim were highly influenced by the level of mango meal. The same was observed for tambaqui (Colossoma macropomum) also fed with increasing levels of mango meal (Souza et al, 2018). Fish total cholesterol decreased with the increase of mango meal, as has also been observed in mammals (Salgado et al, 2008).…”

O uso de ingredientes alternativos na ração para tambaqui (Colossoma macropomum): uma revisão

“…Concluindo, o sacha inchi pode ser adicionado na alimentação de juvenis de tambaquis a um nível de 15% sem comprometer o desempenho de crescimento e parâmetros corporais dos peixes. Souza et al (2018) avaliaram o efeito no desempenho de alevinos de tambaqui (peso médio inicial de 3,66g) causado por dietas contendo duas diferentes fontes de carboidratos. Neste trabalho foram testadas quatro dietas isoprotéicas com diferentes concentrações de farelo de manga (0, 33, 66 e 100%) em substituição ao fubá de milho no desempenho, consumo de ração, rendimento de carcaça, sobrevivência, colesterol total, aminoácidos livres plasmáticos, aspartato aminotransferase (AST), glicogênio hepático e glicose plasmática.…”