Cattle's faeces as a component of feeding rations for fattening young cattle

beef blood blood composition canal de la res carcasse carcasses carne de res carotenoide carotenoides carotenoids cattle composition du sang contenido de materia seca deficiencia de vitaminas dry matter content ensilage (produit) ensilaje faeces feces foie gain de poids ganado bovino ganancia de peso heces higiene de la carne liver meat hygiene nutritive value organoleptic properties ration rations retinol sang sangre silage valeur nutritive valor nutritivo viande de boeuf vitamin deficiencies weight gain