Evaluación y aprovechamiento biotecnológico de residuos agroindustriales de zanahoria y suero de leche generados en el Cantón Riobamba en la elaboración de bioensilaje como alimento para rumiantes.

Abstract

This research evaluated and recycled biotechnologically the agro industrial wastes of carrot and whey, produced in the canton Riobamba in the development of bio silage as feed for rumiants. The analysis carried out in the bio silage of carrot was: physical, bromatological and microbiological. Four treatments of bio silage of carrot whith various concentrations of prepared microbial native (probiotic) of 2, 4, 6 and 8% were used. The results obtained of pH 3.9 and temperature 19°C. The characterization bromatological of bio silage identified that the treatment whit the 6% concentration of probiotic showed the best result, whit a 15.39% protein, 74.78% humidity and 14.04% of fiber. Its microbiological characterization indicated as results that is free of pathogens such as Salmonella, Clostridium, E, coli and molds; identifying a greater concentration of lactic acid bacteria in the treatment to 6% of probiotic with 2.40E+04 colony forming units (CFU) per milliliter. The best economic result of cost-benefit was obtained with the treatment of 6% of probiotic with a rate of the 33% profitability. It concluded that milk production in cows Holstein increase of 14.08 liters to 17.40 liters at the end of the experiment by using the 6% of prepared microbial native in the bio silage of carrot, showing differences numeric between the levels evaluated. It recommends feed the cows with silage of carrot as a supplementary diet, and suggests the use of the bio silage with the addition of 6% of probiotic because it presents the best result in content of fiber, protein and dairy production.