The use of glycerin in lambs and ewes diets | El uso de glicerina en dietas de corderos y ovejas
2009
Terré, M., Institut de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, Barcelona (España). Remugants | Casado, P. | Bach, A., Institut de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, Barcelona (España). Remugants
Thirty-nine Ripollesa weaned lambs were arranged in 3 groups to study three diets with 0%, 5% or 10% glycerin in the concentrate. Lambs were fed the treatment concentrate and straw ad libitum until the slaughter weight (24 kg). Animals were grouped in groups of 5 or 4 lambs, they were weighed weekly, and concentrate and straw intake and water consumption were measured weekly. Blood samples to determine glucose and insulin concentrations were obtained at 2 and 4 wk, and carcass weight was recorded at the slaughterhouse. Thirty-five Ripollesa ewes were arranged in 3 groups to study three diets with 0%, 3% or 5% glycerin in the concentrate diet. Ewes were grouped in 6 groups of 6 or 5 ewes and were fed 1.32 kg DM of a concentrate and straw ad libitum. Straw intake was measured daily, and water consumption weekly. Blood samples were obtained every 2 wk to determine glucose, insulin, NEFA and ß-hydroxybutyrate. None of the parameters measured in lambs and ewes were affected by the glycerin content of concentrate. Glycerin can be included as an ingredient in lamb and ewe diets without impairing the lambs growth, without reducing concentrate or straw intake, and without affecting blood metabolites.
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