Tannin and in vitro digestibility of tropical browse: predictive equations
Author
Conklin, N. L.Issue Date
1994-09-01Keywords
extractionassays
Costa Rica
leaves
dietary fiber
lignin
cell wall components
browse plants
prediction
equations
chemical composition
species differences
tannins
digestibility
cattle feeding
feeding preferences
Metadata
Show full item recordCitation
Conklin, N. L. (1994). Tannin and in vitro digestibility of tropical browse: Predictive equations. Journal of Range Management, 47(5), 398-404.Publisher
Society for Range ManagementJournal
Journal of Range ManagementDOI
10.2307/4002338Additional Links
https://rangelands.org/Abstract
Summative equations to predict digestibility of tropical browse species for cattle were tested by comparison to in vitro digestibility. Four equations were used for the comparison: first the 2 Van Soest equations, 1 using sulfuric acid lignin and the other using permanganate lignin, neither of which have a correction for tannins. And second, the 2 Horvath equations, each using 1 of the 2 above mentioned lignin values and both include a value for tannin content. The Van Soest equation using permanganate lignin and the Horvath equation using sulfuric acid lignin predicted the in vitro digestibilities of the leaf species quite well (r = 0.89 for both). The same Horvath equation predicted the digestibility of the high tannin species better than the Van Soest equation (r = 0.93 versus 0.84). For initial evaluation and ranking of browse species suitable for future research efforts, either equation suitable.Type
textArticle
Language
enISSN
0022-409Xae974a485f413a2113503eed53cd6c53
10.2307/4002338