Abstract
Leaves of Mulberry (Morus alba Lam.), Leucaena (Leucaena leucocephala Lam de wit.) and Moringa (Moringa oleifera Lam.) were evaluated as dry season protein supplements for grazing animals based on chemical composition, in vitro and in sacco nutrient digestibility and a Rabbit feeding trial. All tree fodder forages had similar dry matter (DM) content, but crude protein was higher in Moringa (28.6%) followed by Leucaena (24.5%), Mulberry (24.1%) and Lucerne (18.0%). Ash content was highest in Mulberry followed by Moringa and Lucerne with Leucaena having lowest amounts. Polyphenols ranged from 2.72 to 3.64%, with Leucaena having highest and Mulberry lowest amounts. Dietary fibre were highest in Mulberry and Moringa, but there were no significant differences (P < 0.05) between Leucaena and Lucerne. In vitro gas production and DM disappearances were higher in Moringa followed by Mulberry and Lucerne with Leucaena having lowest amounts. Except for Leucaena, DM disappearances were increased when rumen fluid from dairy cattle steers was used. In sacco DM disappearances were 33.7% for Leucaena, 78.2% for Lucerne, 50.2% for Moringa and 50.7% for Mulberry. In vitro and in sacco crude fibre and neutral detergent fibre disappearances were relatively lower, but reflected DM disappearances. The Rabbit feeding trial showed diets based on Moringa, Leucaena and combined fodder forages to have significantly better performance than Mulberry and grass hay alone. The conclusion was that tested tree fodder forages have potential of being used as dry season protein supplements for grazing animals on traditional smallholder farms.
Published Version
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