Journal of Arid Environments (1992) 22: 271-276
Leaf litter and Acacia pods as feed for livestock during the
dry season in Acacia-Commiphora bushland, Kenya
P. T. Scholte
Laboratoire de Farcha, P.O. Box 433 N'Djamena, Tchad
(Received 6 December 1990, accepted 5 February 1991)
The composition of the dry season diets of cattle and goats in an area with
deciduous Acacia--Commiphora bushland, Eastern Province, Kenya, was quanti-
fied. Main consumed products were Acaciapods contributing 37 and 30% of the
diet of goats and cattle respectively, and leaf litter contributing 22 and 29%
respectively _In the study year a short period of protein deficiency occurred only
in the beginning of the dry season, due to the dominance of protein-poor leaf
litter. During the remainder of the dry season and the first part of the rainy
season, protein-rich Acaciapods and browse enabled especially goats to collect a
more balanced diet. The high contribution of Acacia pods and leaf litter shows
the importance of bushland for grazing livestock.
Introduction
Large parts of North East and East Africa consist of dry deciduous bushland, dominated
by species of the genera Acacia and Commiphora (White, 1983). An important part of its
annual primary production consists of leaves and fruits, that usually becomes available for
herbivores as litter. The importance of Acacia pods in this respect is well documented
(Lamprey, 1967;Le Houerou, 1980); it is often the main source of forage in valleys during
the dry season (e.g. Dougall & Bogdan, 1958). Leaf litter has only been mentioned in
passing (Edwards, 1948; Dougall & Bogdan, 1958; Field, 1979).Quantitative information
on both forage sources, however, is scarce, and is absent for Acacia-Commiphora bushland
such as in the study area. The present study was part of a land evaluation study of the
Chuka-South area, Kenya (de Meester & Legger, 1988). Its aim was to investigate the
significance of various forage sources for livestock and to identify the major ecological
bottlenecks in the grazing system (Scholte, 1986).
Study area
The study area is situated near Ishiara, Eastern Province, Kenya, and is representative for
the eastern Chuka-South area (de Meester & Legger, 1988), in the lower Embu and Meru
districts. Mean annual rainfall is about 800 mm, equally distributed between two periods
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