Resumen

CANSINO-ARROYO, G; HERRERA-CAMACHO, J  y  AKE-LOPEZ, JR. Conception, fertility and prolificacy rates in hair ewes fed diets supplemented with polyunsaturated fatty acids. Universidad y ciencia [online]. 2009, vol.25, n.2, pp.181-185. ISSN 0186-2979.

The conception, fertility and prolificacy rates were evaluated in hair ewes randomly distributed in: a control group (n = 72) that received 800 g DM of a commercial concentrate, a molasses group (n = 51) which was fed 717.6 g DM of the commercial concentrate + 80.25 g DM of cane molasses, and an oil group (n = 85) that was supplied with 726.8 g DM of the commercial concentrate + 30 g DM of corn oil as a source of polyunsaturated fatty acids. The conception and fertility rates were similar among treatments (p > 0.05). The prolificacy in the oil group (1.79) was higher (p > 0.05) than that in the molasses group and control groups (1.55 and 1.46 respectively). The addition of polyunsaturated fatty acids increased the rate of prolificacy in hair sheep.

Palabras llave : Corn oil; fertility rate; conception rate; prolificacy; polyunsaturated fatty acids.