Aversão alimentar condicionada para o controle da intoxicação por Ipomoea carnea subsp. fistulosa em caprinos

Toxic plants affecting the nervous system of ruminants and horses in Brazil

“…In controlled experiments as well as in field experiments, aversion induced with lithium chloride in goats trained previously to ingest I. carnea lasted until the end of the experiments, 24 and 32 months later, respectively . In experiments with I. carnea, in different situations, it was concluded that conditioned food aversion was effective in reducing goat consumption of this plant, but the duration of aversion depends on the time of grazing and amount of plant available; however, the aversion is quickly extinguished by social facilitation when averted animals grazed with non-averted animals (Pimentel et al 2013). An experiment averting every goat ingesting T. cordata in a herd resulted in the control of the poisoning by this plant.…”

“…These differences seem to be due to the different environment where those plants grow: T. cordata grows during the raining period, with good forage availability, and disappears during the dry period. In the other hand, I. carnea stays green most of the year, including the dry season when there is a severe shortage of forage (Pimentel et al 2013).…”