Resumen de Cebo de terneros frisones: Variación del ph ruminal en función de la dieta
Raquel Posado Ferreras, María José Tabernero de Paz Risueño, J.J. García García, Raúl Bodas Rodríguez
This study shows the effect of two diets for fattening Friesian bulls, one being the conventional system (concentrate plus straw) and the other based on a micro-silage of maize silage, straw and concentrate, both supplied ad libitum. After 8 months on fattening, rumen pH and temperature dynamics were measured using internal wireless boluses. Average, maximum and minimum rumen pH values were higher in the bulls fed with the micro-silage than those fed concentrates (P<0.01). Average rumen temperature was not affected, but rumen from concentrate-fed bulls spent more time at high temperatures than in micro-silage-fed bulls (P<0.05). Rumen pH values reached their maximum at 8:00, beginning afterwards to drop down to the minimum at 22:00. Therefore, the diet based on silage enhanced rumen environment, thus contributing to improve animal welfare.
