Cassava hay has been used successfully as a source of
high protein roughage in lactating dairy cows (Wanapat et
al., 2000a; Wanapat et al., 2000b). Wanapat et al. (2000b)
(Table 5) found that increasing levels of CH from 0.6 to 1.7
kg/hd/d could reduce levels of concentrate from 0.1 to 1.6
kg/hd/d, respectively, without changing levels of milk yield.
Moreover, feeding CH on ad lib resulted in similar result
and could further reduce concentrate use. The study was
conducted to examine the supplementation levels of cassava