A summary of the mean apparent digestion
coefficients is given in Table 5. Results of the
1961-62 and 1962-63 digestion trials showed a
clear advantage for hay and wilted silage over
low-moisture silage in terms of digestibility.
However, in the 1963-64 trials, the digestibility
coefficients for dry matter, cellulose, and en-
ergy were higher for low-moisture silage than
for hay or wilted silage. Since the chemical
composition of the forages did not differ
greatly between years (Tables 1 and 2), no
adequate explanation for this year-to-year vari-
ation is apparent.