Production, Conservation and Health Assessment of Acid Silage Vicera of Freshwater Fish as a Component of Animal Feed

The acid silage of fish waste is a source of generating feed simply process and at low cost and sustainable alternative to the disposal of this waste now docked in the environment. This work aims to evaluate the method of production of silage made with muriatic acid (hydrochloric acid commercial) for the process of production, conservation in acidic medium, health assessment, job burnout for the production of animal feed and chemical profile. The experiment was conducted at the Experimental Farm of the Federal University of Rondonia, Campus Rolim de Moura with viscera tambaqui (Colossoma macroponum) were obtained from fish farms in the county. They were passed on meat grinder, reserved in plastic drums which was added the acid. After three weeks of incubation samples were sent to a specialized laboratory in this resulted in negative for the presence total coliform, fecal coliform and heterotrophic bacteria. It can be seen that 210 days after the material showed no visible changes or odor, color and consistency. To achieve a pH of around 6.0 was used 6.4 g of commercial caustic soda. This time added sodium levels represented 2.9 % in the silage. The silage neutralized or made with pH levels around 4.0 provided the occurrence of fungi of the genus Mucor and Rhyzophus. Regarding the chemical profile obtained levels of 30.81 % crude protein, 26.73 % ether extract, 0.62 % calcium and 0.73 % phosphorus in the dry matter. The process can be simple and potentially considered for use as animal feed.