Bloat in cattle

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Abstract
Leaves of white, red, and subterranean clovers ground into buffer liberated soluble protein, but leaves of lotus major did not unless polyvinylpyrrolidone (PVP), a reagent which binds tannins, was added to the extracting medium. Compared to clovers, extracts from lotus showed in the absence of PVP a reduced ability to produce foam, both in equipment for measuring foam strength and when incubated with rumen micro‐organisms. The interaction between lotus and clover extracts hao also been studied, and the possible implication in control of bloat is discussed.

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