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OJVR®
Online Journal of Veterinary Research©
Volume 6:42-46, 2002, Redacted 2018. .
Effect of Seleniferous Astragalus
on digestibility, growth, and serum and tissue selenium concentrations in lambs
K
Sahin1, N Sahin2, M Sari3.
Department
of Animal Nutrition, Faculty of Veterinary Science, University of Firat (1), Veterinary Control and Research Institute, Elang, 23100 (2), Department of Animal Nutrition, Faculty
of Veterinary , University of ADU, Turkey(3)
ABSTRACT
K Sahin, N Sahin, M
Sari., Effects of Seleniferous
Astragalus on digestibility, growth, and serum and
tissue selenium concentrations in lambs. Onl J Vet
Res., 6:42-46, 2002. Digestibility,
growth, serum and tissue selenium concentrations were compared in groups of 4
month old lambs each fed hay (controls), Astragalus gummifer
or Astragalus kurdicus
(70% forage and 30% concentrate) containing 0.2, 50, and 52 ppm selenium,
respectively, for 90 days. In lambs fed Astralagus
spp, ataxia,
paralysis, hair loss, lacrimation, and cracked hoof walls appeared by 30
days. Between 30 and 90 days, serum and tissue selenium concentrations
had increased 37 to 90 and 20 to 48 times above the hay control values,
respectively, whereas feed intake and weight gain had declined 27 to 29%
and 308% respectively. The
results suggested that A. gummifer and kurdicus fed
at 70% or more of a ration is toxic to lambs.
KEY WORDS: Astragalus spp,
Selenium, Digestibility, Growth, Sheep