Studies on the Experimental Production and Prevention of Bloat in Cattle. I. Influence of Intrarumen Administration of Fresh Eggwhite on Production of Bloat

Abstract

Studies using five head of cattle show that intrarumen introduction of fresh eggwhite produces moderate bloat in cattle given ground, dehydrated alfalfa, either by oral feeding or by placing it directly into the rumen. In eight of 12 instances in which the dehydrated alfalfa was fed preceding intrarumen administration of eggwhite, the ruminal pressure exceeded 15 mm. Hg above atmospheric pressure, as measured with a tympanometer. Such bloat results from the formation of a stable foam within the rumen, which reduces the frequency of eructation for the first 90 minutes following administration of the eggwhite. It is suggested that water-soluble plant protein may be an important factor in the etiology of bloat on legumes. © 1957, American Dairy Science Association. All rights reserved.