Desempenho de suínos alimentados com farinha de resíduos de tambaqui (Colossoma macropomum)

Abstract

Waste from tambaqui (Colossoma macropomum) filleting can reach 67% of its weight. These wastes have a composition rich in organic and inorganic compounds, with the potential to generate negative environmental impacts when disposed directly in the environment. In this context, the objective of the work is to evaluate the feasibility of including flour from tambaqui residues in piglet feed, in order to reuse organic matter discarded by man and reduce the impacts of its release into the environment. The flour was produced using waste donated by the fish industry, and samples of this flour were collected for proximate and microbiological analysis. The results obtained in the proximate analysis were 21.0% proteins; and the values found for total coliforms, E. coli and Salmonella were within the standards established by legislation. The use of tambaqui residue flour to replace 5% of soy flour in the feeding of piglets in the Amazon region did not harm the zootechnical performance, did not affect the homeostasis of urea and glucose, and did not imply additional costs for the final product. The study also demonstrated that diet replacement did not change animal welfare indicators measured through cortisol dosage and ethogram application. Therefore, it has the potential to contribute to the valorization of regional ingredients and encourage the sustainability of the sector, as it uses industry by-products as raw materials.