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Acacia angustissima is a tropical legume, which has potential as a fodder tree, but contains secondary compounds which have an anti-nutritional effect in ruminants. This study was designed to indicate whether condensed tannins alone are responsible for the anti-nutritional affect or whether non-p...


Smith, A.H.Wallig, M.A.Seigler, D.S.Odenyo, A.A.McSweeney, C.S.Mackie, R.I.[Ameliorating the toxic effects of Acacia angustissima with polyethylene glycol in rats]Ameliorating the toxic effects of Acacia angustissima with polyethylene glycol in rats

Several tannin-tolerant bacteria were isolated from enrichment cultures of rumen microflora of bush duiker, giraffe, Grant's gazelle, sheep, and goat, and established in medium containing crude tannin extracts or tannic acid. The isolates were characterized by classical and molecular methods. The...


Odenyo, A.A.Bishop, Richard P.Asefa, G.Jamnadass, Ramni H.Odongo, D.Osuji, P.O.[Characterization of tannin-tolerant bacterial isolates from East African ruminants]Characterization of tannin-tolerant bacterial isolates from East African ruminants

The capabilities of rumen fluid sources from indigenous African ruminants and hindgut fluid from zebra to ferment leaves of Acacia angustissima, Calliandra calothyrsus, Leucaena diversifolia, Leucaena leucocephala, Leucaena pallida, and Tephrosia bracteolata were evaluated to determine the presen...


Odenyo, A.A.McSweeney, C.S.Palmer, B.Negassa, D.Osuji, P.O.[In vitro screening of rumen fluid samples from indigenous African ruminants provides for rumen fluid with superior capacities to digest tannin-rich fodders]In vitro screening of rumen fluid samples from indigenous African ruminants provides for rumen fluid with superior capacities to digest tannin-rich fodders

Three strains of tannin-tolerant rumen bacteria were isolated from enrichment cultures of rumen microflora of sheep, goat, and antelope and established in medium containing high concentrations of crude tannin extract or tannic acid. These three strains (EAT2, ES3, and EG19), characterized as Sele...


Odenyo, A.A.Osuji, P.O.[Tannin-tolerant ruminal bacteria from East African ruminants]Tannin-tolerant ruminal bacteria from East African ruminants

Acacia angustissima has potential as a fodder tree, but was toxic to sheep when fed without adaptation at levels higher than 50 g per day in previous studies. In the present study it was determined that rats are sensitive to anti-nutritional factor(s) of A. angustissima and can therefore be used ...


Smith, A.H.Odenyo, A.A.Osuji, P.O.Wallig, M.A.Kandil, F.E.Seigler, D.S.Mackie, R.I.[Evaluation of toxicity of Acacia angustissima in a rat bioassay]Evaluation of toxicity of Acacia angustissima in a rat bioassay

The experiment was carried out using a replicated (3x3) Latin square design with six sheep, to assess, the effect of supplementing maize stover fed ad libitum at three levels (100, 150 or 200 g) of Leucaena diversifolia. The sheep had an initial live weight of 26.4 kg (+ or -) 1.78 kg. In each pe...


Hindrichsen, I.K.Osuji, P.O.Odenyo, A.A.Madsen, J.Hvelplund, T.[Effects of supplementation of a basal diet of maize stover with different amounts of Leucaena diversifolia on intake, digestibility, nitrogen metabolism and rumen parameters in sheep]Effects of supplementation of a basal diet of maize stover with different amounts of Leucaena diversifolia on intake, digestibility, nitrogen metabolism and rumen parameters in sheep

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