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The Nutritive Values of Ammonium Bisulphate and Molassed Silages: III. Effects of Level of Ammonium Bisulphate Applied to Herbage on Silage Quality and Animal Performance
R. B. McCarrick, M. F. Maguire, D. B. R. Poole and T. A. Spillane
Irish Journal of Agricultural Research
Vol. 4, No. 2 (Oct., 1965), pp. 135-142
Published by: TEAGASC-Agriculture and Food Development Authority
Stable URL: http://www.jstor.org/stable/25555369
Page Count: 8
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Three experiments were conducted to determine the effects of different levels of ammonium bisulphate applied to herbage on voluntary intake of the silage and on animal performance. Grass/clover herbages were used for all silages and beef bullocks were used as experimental animals. No other foods were fed with the silages. The quantity of ammonium bisulphate used in silage-making was directly related to the sulphur content of silage dry matter and was inversely related to voluntary intake of silage by the animals. Ammonium bisulphate silages caused acidosis, the severity of which depended on the intake of ammonium bisulphate and on the duration of feeding. It is suggested that the disturbance of the animal's acid-base equilibrium caused by the bisulphate ion is primarily responsible for the reduced feed intake. Liveweight performance of the animals was directly related to their voluntary intake of silage.
Irish Journal of Agricultural Research © 1965 TEAGASC-Agriculture and Food Development Authority