Efecto de la suplementación con ensilaje de naranja sobre la calidad de la leche bovina en la granja experimental Villa Marina.

Abstract

The objective of the present study was to evaluate the effect of the supply of orange silage (EN) on the quality of bovine milk at the Villa Marina Experimental Farm of the University of Pamplona. We used a randomized complete block design with 12 animals whose genetics are influenced by the Gyr, Holstein, Jersey and Swedish Red races, distributed in a treatment with the substitution of 20% of the commercial concentrate and a control. The EN was elaborated with fruits produced on the farm with 30 days of fermentation. A period of 10 days of habituation was carried out to guarantee consumption. The parameters of milk quality: fat, protein, non-fat solids (SNG), minerals, density and lactose, were measured in the Julie C3 Scope Electric equipment every seven days for 90 days. The data obtained were subjected to an ANOVA and correlation analysis of variance. Significant differences were found (P <0.05) for fat with 4.36% for treatment one and 3.75% for the control. In the other parameters of milk quality, similar behavior was presented. There is a strong linear relationship between the variables of lactose with non-fatty solids and protein (, 999 **). The daily production of milk did not present significant differences. The cost of supplementation per liter of milk was estimated at $ 265.15. It was concluded that the substitution of commercial concentrate by EN, substantially improves the fat content of bovine milk without affecting the other parameters of quality or production.