Effects of Isopropyl Alcohol Infusions on the Ruminating Behavior of Goats

Asato, N.; Hirata, T.; Hirayama, T.; Onodera, R.; Shinjo, A.; Oshiro, S.

doi:2001.14.8.1085

Article

Ruminant Nutrition and Forage Utilization

Asian-Australasian Journal of Animal Sciences 2001;14(8): 1085-1089.
https://doi.org/10.5713/ajas.2001.1085 Published online August 1, 2001.

Effects of Isopropyl Alcohol Infusions on the Ruminating Behavior of Goats

N. Asato, T. Hirata, T. Hirayama, R. Onodera, A. Shinjo, S. Oshiro

Abstract

Metabolites, such as isopropyl alcohol (IPA) produced by rumen fermentation, were intravenously infused into a jugular vein of goats during feeding to explore the mechanism and roles of IPA in ruminating behavior (number of boli and ruminating time). Three female goats were confined in metabolism cages with a stanchion. The ruminating behavior measured by the number of ruminations, ruminating time, number of remastications, and remasticating time decreased (p<0.05) with intravenous IPA infusion. The IPA concentrations and VFA concentrations increased in the blood circulation. Our data suggest that sensitive receptors of rumination to IPA are more likely to be in an area such as the brain stem where they can respond to blood metabolite levels.

Keywords: IPA; Acetone; Rumination; Intravenous Infusion; Goats