La aversión condicionada con cloruro de litio en ovinos para evitar el consumo de hojas de olivo

Abstract

espanolLa aversion condicionada con Cloruro de Litio (LiCl) ha demostrado ser una herramienta util para modelar la dieta en rumiantes. En este ensayo estudiamos el uso del LiCl para controlar el consumo de olivos en ovinos. Se usaron 22 ovejas, todas fueron sometidas a un periodo de pre-condicionamiento donde se las acostumbro a una rutina de consumo. Luego, se paso al periodo de condicionamiento, donde se usaron hojas frescas de olivos, cuando se logro que todos los animales consumieran la planta se dosifico con LiCl (200 mg/kg PV) a la mitad de animales. Se monitoreo el efecto del LiCl durante 6 dias consecutivos, y luego mensualmente durante 6 meses. El LiCl genero una disminucion significativa en el consumo de hojas de olivos. En el presente trabajo, proponemos que la aversion condicionada inducida por el uso de LiCl es una herramienta util para controlar que los ovinos consuman los olivos. EnglishConditioned aversion with Lithium Chloride (LiCl) has shown to be a useful tool for modeling diet in ruminants. In this paper, we studied the LiCl use to control olive trees consumption by ewes. For this purpose, 22 crossbred ewes were exposed to a preconditioning period where they were trained in a specific consumption routine. Once the conditioning period began, fresh olive leaves were given to eat, half were dosed with LiCl aqueous solution (200 mg/kg BW), while the other half were dosed with water. The effect of LiCl was monitored during 6 consecutive days after administration, and every month for 6 months. The LiCl generated a significant decrease consumption of olive leaves. We propose that the conditioned aversion induced by LiCl is a useful tool to control olive trees consumption.