Monitoring rumen environment in finishing Lidia bulls

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Autores

Juan García G Raquel Posado F José Zúñiga María Tabernero de Paz R Raúl Bodas R

Resumen

Objective. The aim of this work was to characterize the changes in rumen pH and temperature in finishing Lidia breed bulls reared on pasture and fed a total mixed ration (TMR). Materials and methods. Five 4-year-old Lidia bulls received approximately 10 kg of the TMR per animal and day in the morning. Bulls could move freely in a 17-ha fenced area and express normally their feeding behaviour. Internal wireless boluses were used to collect pH and temperature values every 10 minutes throughout the measurement period. Results. Average daily pH was 6.2. Average and maximum daily temperatures were not high enough to be indicative of disease (infections of other pathologies). Conclusions. When rations and feeding systems are appropriately managed, Lidia bulls can be supplemented with concentrates in the finishing stages of their productive cycle without impairing the rumen environment.

Objetivo. El presente trabajo pretendió caracterizar las modificaciones que se producen en el pH y la temperatura ruminal de los toros de lidia, criados con un sistema de alimentación basado en el suministro de una mezcla unifeed seca durante la etapa de acabado. Materiales y métodos. Se utilizaron 5 toros cuatreños de la raza de Lidia alimentados con, aproximadamente, 10 kg/animal y día de la mezcla unifeed a primera hora de la mañana. Los toros disponían de un espacio cercado de 17 ha, que les permitiría expresar sus patrones de comportamiento de pastoreo en libertad con plena normalidad. El pH y la temperatura ruminal se midió de forma continua utilizando una sonda interna sin cables. Resultados. El pH medio fue de 6.20. Ni los valores de temperatura ruminal medios ni los máximos registrados son excesivamente altos como para ser indicativos del desarrollo de patologías o infecciones que pudieran afectar al estado de los animales. Conclusiones. Mediante el manejo adecuado de las raciones y del sistema de alimentación, puede llevarse a cabo una suplementación con alimentos concentrados para toros de lidia en la fase de remate de manera adecuada y respetuosa con su ambiente ruminal.

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