Publication Date
1989
Description
For a long time, laboratories techniques have been applied to predict "in vivo" digestibility. Among the biological methods, those basing on rumen fluid are the most used in the nutrition laboratories (Osbourn and Siddons, 1980). These techniques, however, present difficulties as the necessity of maintaining rumen-fistulated donor animals, variations in ruminal activity and high cost. For these reasons, the capacity of enzymatic solubility to predict digestibility has been studied in the last few years in different forages : hays, cereal straws, silages and pellets (Aerts et al., 1977 ; Rivero Yeas, 1985), agricultural byproducts (Aerts, 1977; Aguilera and Molina, 1986) and shrubs (Silva et al., 1986; Silva, 1987). It is known that forage crude protein content and digestibility are closely related. Silva (1987) and Kruger et al. (1984) indicate that in agricultural byproducts and low crude protein forages the protein content is a better predictor of digestibility than the cell wall constituents. The purpose of this work was to prove the sensibility of the enzymatic solubility to predict digestibility in grasses of middling food value, and to compare it with the prediction levels reached by other analytic parameters.
Citation
Silva Colomer, J; Zarate, M; Guevara, J C.; and Fransinelli, C, "Enzymatic Solubility and other Analytic Parameters Predicting Digestibility in Grasses of Middling Food Value" (2025). IGC Proceedings (1989-2023). 68.
https://uknowledge.uky.edu/igc/1989/session7/68
Included in
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Enzymatic Solubility and other Analytic Parameters Predicting Digestibility in Grasses of Middling Food Value
For a long time, laboratories techniques have been applied to predict "in vivo" digestibility. Among the biological methods, those basing on rumen fluid are the most used in the nutrition laboratories (Osbourn and Siddons, 1980). These techniques, however, present difficulties as the necessity of maintaining rumen-fistulated donor animals, variations in ruminal activity and high cost. For these reasons, the capacity of enzymatic solubility to predict digestibility has been studied in the last few years in different forages : hays, cereal straws, silages and pellets (Aerts et al., 1977 ; Rivero Yeas, 1985), agricultural byproducts (Aerts, 1977; Aguilera and Molina, 1986) and shrubs (Silva et al., 1986; Silva, 1987). It is known that forage crude protein content and digestibility are closely related. Silva (1987) and Kruger et al. (1984) indicate that in agricultural byproducts and low crude protein forages the protein content is a better predictor of digestibility than the cell wall constituents. The purpose of this work was to prove the sensibility of the enzymatic solubility to predict digestibility in grasses of middling food value, and to compare it with the prediction levels reached by other analytic parameters.
