Evaluation of the Feeding Value of Palm Press Fibre Using in Vitro Digestibility Techniques


Palm press fibre (PPF) was obtained from two sources, a small-scale oil palm processing unit and a large-scale factory processing unit, and its chemical composition was determined. In vitro digestibility techniques were used to assess the feeding value of untreated, defatted and sodium hydroxide-treated PPF. For the NaOH treatment, 0.5 g oven-dried PPF was treated for 24 h with 5"., NaOH in three ways: treated and not washed (NaNW): treated and washed (NaW): and treated after milling (NAD). The results indicate that, on a dry matter basis. PPF is low in nitrogen ( 12 1 3 g/kg), moisture (37- 90 g/kg) and ash (53-62 g/kg), but high in ether extract (269-355 g/kg), neutral detergent fibre (532- 768 g/kg), acid detergent fibre (375-548 g/kg) and lignin (219 g/kg). The in vitro dry matter digestibility values were low for the samples from both sources, but the large-scale factory-processed I'PF had higher in vitro dry matter digestibility (0.215 vs 0.166) and in vitro organic matter digestibility (0.196 vs 0.145). Defatting the PPF and treating it with 5`Y, NaOH solution significantly (p 11.01) improved both the dry matter and organic matter digestibility. Washing the NaOH-treated PPF resulted in a higher digestibility of dry matter as against NaNW or NAD. These results suggest that dclaning and treatment with 5% NaOH would improve the feeding value of PPF. Ke'vHordr: alkali, by-product, composition, dcfatting, digestibility, feedstuff. oil palm, ruminant Abitaiverbons IVDMD. in vitro dry matter digestibility: IVOMD, in vitro organic matter digestibility. NAD. PPF treated with 5'%. NaOH; NaNW. PPF treated with 5°/, NaOH; NaW, PPP treated with 5'v., NaOH and washed: PPF. palm press fibre: t)TRI). untreated PPF



Obese, F. Y.

Osafo, E. L. K. ( Department of Animal Science, Associate Professor, elkosafo.agric@knust.edu.gh, 0322060325)

Okai, D. B. (Department of Animal Science, Professor, dbokai.agric@knust.edu.gh,



Place of publication:

This article is in publication by the Department of Animal Science, University of Science and Technology

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