Estudio comparativo del comportamiento nutritivo del cabrito y cordero prerrumiante. Ingesta de alimento y aprovechamiento digestivo de nutriente (Nutritional behaviour of pre-ruminant kid coats vs lambs. Food intake and digestive utilization)
Resumen Ls especies caprina y ovina presentan un desarrollo corporal diferente lo que manifestado desde los primeros estadios de vida, determina el distinto estado de engrasamiento que sus canales alcanzan Con objeto de identificar desde un punto de vista nutritwo. Otras causas de este diferente desarrollo, se realizaron cuatro ensayos diferentes de digestibilidad, en cabritos de raza Granadina y corderos de raza Segureña, alimentados a saciedad, desde el nacimiento hasta las dos meses de edad, deterrninándose la ingesta de alimento y aprovechamiento digestivo de nutrientes entre los 8-15. 23-34, 38-45 y 53-60 días de edad. La ingesta de materia seca o energia a nivel metabólico (g ó kJ/kg 0,75 y día), resultó más alta para el cordero (1 1,7%). La utilización digestiva no mostró grandes diferencias, apareciendo determinada con igual intensidad, por la tasa de ingesta tanto en cabritos como en corderos. Abstract The corporal development of goat and ovine species is different what is manifested from early period of life, being this the cause which determines their different carcass fattening state. With the aim to stablish at nutritional level, the real ans of that, it was carried out an experimen t with Granadina kid goats and Sagureña lambs, from birth until two months of life, For both kind of animals, food intake rate and nutrients digestive utilzation were analysed. They were fed at saciety, under the same milk replacer and digestibility trials were performed between: 8-15, 23-30, 38-45 and 53-b0 days old. On average, lambs ate more dry matter or energy (11-7 per cent) at metabolic level (g or kJ/kg 0,75 per day). In general terms, the digestive utilization was not different between kid goats and lambs. Food intake rate determined digestive utilization, in the same way for both kind o animals.