IJSRP, Volume 5, Issue 1, January 2015 Edition [ISSN 2250-3153]
Maita L. Aban , Leif Marvin R. Gonzales , Lolito C. Bestil
The quality of forage affects consumption, nutrient intake, and the resulting animal performance. Voluntary intake of tree/shrub forages as affected by their pH levels was investigated using 24 heads of goats. Several forages were analyzed for their pH level and were categorized as low (3.25-4.50) medium (4.51-5.76) and high (5.76-up) pH levels. Two samples in each category were used and was set-up in a randomized complete block design (RCBD). Voluntary feed intake (VFI) was established by adding 20% of the days offering based on previous days intake. The six (6) forages tested were Kakawate (Gliricidia sepium), Madre de agua (Trichanthera gigantea), Acacia (Samanea saman), Gmelina (Gmelina arborea), Robles (Cassia siamea) and Santol (Sandoricum koetjape). Forages with high pH levels that approximate the ideal level of ruminal pH such as Kakawate and Madre de agua, followed by Gmelina, had significantly higher intakes of dry matter (DM) both in actual amount and as percent body weight, organic matter (OM) and neutral detergent fiber (NDF) than those with low pH levels. Voluntary intake of crude protein (CP) among forages tested appeared to be not dependent on pH level. High pH level forages appeared to have a great potential as ruminant feed showing high levels of voluntary intake.