Preliminary study for maintenance requirements determination in manchega and guirra sheep | Estudio preliminar para determinar las necesidades de mantenimiento en ovejas de raza manchega y guirra
2011
López, M.C., Universidad Politécnica de Valencia (España). Inst. de Ciencia y Tecnología Animal | Fernández, C., Universidad Politécnica de Valencia (España). Inst. de Ciencia y Tecnología Animal
Twelve sheep of two races were used, six of each race, Manchega and Guirra; two and a half years old, not pregnant, dried and fed under maintenance. Sheep were weighted at the beginning and end of the trial consisting of an adaptation phase to metabolic cages, diet and respirometric mask during 13 days, followed by an experimental phase of another 13 days. The experimental phase consisted of 5 days digestibility, 2 rest, 3 respirometry measures and 3 of fasting for determination of fasting heat production. Intake, digestibility, energy balance were made and the heat production (HP) of sheep were obtained by indirect calorimetry. There were no differences between two breeds in terms of digestibility, energy balance and HP. The net energy requirements for maintenance (ENm), equivalent to basal metabolism, are on average for both breeds of 288.9 KJ ENm/kg PVE0,75.
Afficher plus [+] Moins [-]Mots clés AGROVOC
Informations bibliographiques
Cette notice bibliographique a été fournie par Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
Découvrez la collection de ce fournisseur de données dans AGRIS