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Mineral Composition of Rumen Fistula Samples Compared to Diet

Mayland, H.F. and Lesperance, A.L. (1977) Mineral Composition of Rumen Fistula Samples Compared to Diet. Journal of Range Management. 30(5):388-390.

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Forage sampling using fistulated grazing animals is a
generally accepted technique to measure dietary forage quality
and botanical composition, but is it a satisfactory technique to
evaluate dietary mineral intake? Using a variety of diets which
were fed to rumen-fistulated steers, the fistula samples had
relatively larger concentrations of ash, Si, Na, P, Zn, and Co (PC
0.05) than did diet samples. Small decreases in the Mg and Ca concentrations
of the fistula sample, as well as the small increases in
N, K, Mn, Fe, and Mo values, were not generally different from
diet concentrations. Regression equations predicting diet-mineral
concentrations of all diets, given the concentration in the fistula
sample, were accompanied by errors of 8 to 37% of the true value.
Smaller errors can be expected when similar diets like alfalfa hay
are used throughout a given study.

Item Type: Article
NWISRL Publication Number: 0389
Subjects: Animal > Animal health
Mass Import - autoclassified (may be erroneous)
Depositing User: Dan Stieneke
Date Deposited: 20 Nov 2010 21:51
Last Modified: 06 Feb 2017 17:22
Item ID: 328