Evaluation of the nutritious quality of a silage for the feeding of dairy cattle from the residues from the Quinua trillate (Chenopodium Quinoa Willd) and Sangorache (Amaranthus Hybridus l.) (Original)

Abstract

The present investigation was focused on the evaluation of the nutritive quality of a silage from the residues coming from threshing of the quinoa and sangorache crop for feeding dairy cattle. the residues from the harvest of threshing of the quinoa by the evaluation of the silage, of which the microsilos of the different treatments were taken to a monitoring every five of pH, acidity, total sugars that was evaluating its fermentative quality during thirty days . The control of fungi, yeasts and total aerobes was important because the microbiological quality was observed in silage; while the higher amount of sugars present in the silage, the lactic bacteria proliferated faster and generated a good fermentation, lowering the pH significantly. The best corresponding formulation t6 (residues of sangorache + 1% urea + 10% molasses + 0.08% BAL) with a pH of 4.71 the same that presented a good nutritional quality. The best treatments had a higher protein content and increased minerals due to the addiction of different concentrations of urea and molasses. In vitro digestibility was performed by analyzing the amount of matter that can be digestible by obtaining the t5 treatment (residues of sangorache + 1% urea + 5% molasses + 0.08% BAL) having 76.33% of DIVMS. Finally the cost of each microsilo was determined at $ 1,751 plus 25% of suggested utility for animal food products, having a P.V.P. of $ 2.18 per 1.5 kg of microsilo.