RESEARCH RESOURCES: PRODUCTION OF BIO-INPUTS FROM TAMBAQUI (Colossoma macropomum) WASTE IN ITAITUBA, PARÁ, BRAZIL

Abstract

This article aimed to develop bio-inputs from tambaqui (Colossoma macropomum) waste collected from open-air markets in Itaituba/Pará. Liquid biofertilizer and biological silage were produced in the multidisciplinary laboratory of the Federal Institute of Pará, Itaituba campus. For the biofertilizer, fish waste was mixed with alcohol vinegar and brown sugar, and preserved in a sealed container for 28 days for fermentation in a place protected from the elements. For the biological silage, cabbage, pineapple, wheat flour, table salt, vinegar, and biological yeast were used to prepare the fermentation, and the mixture was also preserved in a protected environment for 20 days for fermentation. After this period, fish waste was added to the mixture, and the container was sealed again for another 15 days of fermentation. After the fermentation period of both products, a liquid biofertilizer and a biological silage were obtained, presenting a good visual aspect, with a healthy appearance, and without unpleasant odor. They were then stored in a freezer for later use. Therefore, the study created a new market niche in Itaituba, improving rural entrepreneurship techniques, promoting environmental education and sustainability in fish farming, through the full utilization of fish waste.