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Söderberg, Vera, 2010. The importance of Yeheb (Cordeauxia edulis) for Somali livestock production and its effects on body tissues when fed to Swedish domestic goats. Second cycle, A2E. Uppsala: SLU, Dept. of Anatomy, Physiology and Biochemistry (until 231231)



This master thesis was conducted in order to investigate the effects of the browsing
species Yeheb on animal tissues in Swedish landrace goats and to make a literature
review in order to increase the knowledge of the importance of this plant for livestock
production in Somalia. The evergreen Yeheb bush is a very important feeding source for
grazing and browsing animals in Somalia during the dry period. Yeheb contains
cordeauxiaquinone that stains the bones of the animals red/pink, which has been an
increasing problem when exporting meat to foreign countries. In an experiment, two
goats were fed dry and fresh leaves from the Yeheb bush for one and two months,
respectively. The goats did not feed the intended amount of dry leaves, since the supply
and palatability was not as high as estimated. Results show that cordeauxiaquinone
and/or its derivatives was found in the rumen liquid and the level of cordeauxiaquinone
accumulated in the goat plasma by time; an increased absorption was measured with a
spectrophotometer in the interval of 440-580 nm. The skeleton did not turn reddish,
possibly due to the relatively short exposure time or the relatively low intake compared to
that of goats in Somalia. For future studies, both qualitative and quantitative methods
have to be established for cordeauxiaquinone analyses in body tissues and in plants.

Main title:The importance of Yeheb (Cordeauxia edulis) for Somali livestock production and its effects on body tissues when fed to Swedish domestic goats
Authors:Söderberg, Vera
Supervisor:Dahlborn, Kristina
Examiner:Persson, Elisabeth
Volume/Sequential designation:UNSPECIFIED
Year of Publication:2010
Level and depth descriptor:Second cycle, A2E
Student's programme affiliation:VY001 Agricultural Science Programme - Animal Science 270 HEC
Supervising department:(VH) > Dept. of Anatomy, Physiology and Biochemistry (until 231231)
Keywords:Yeheb, Cordauxia edulis, Goat, Skeleton, Metabolism
Permanent URL:
Subject. Use of subject categories until 2023-04-30.:Animal physiology - Nutrition
Animal diseases
Animal feeding
Animal physiology - Growth and development
Agricultural economics and policies
Animal physiology and biochemistry
Deposited On:15 Jan 2010 12:36
Metadata Last Modified:08 Oct 2012 07:16

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