Fróðskaparrit - 01.01.1993, Síða 102

I 06 NARTHECIUM OSSIFRAGUM-ASSOCIATED PHOTOSENSITIZATION IN SHEEPIN THE FAROE ISLANDS
sive scabs that mat the covering hair. Signs
of jaundice are sometimes seen.
Treatment
Photosensitized sheep must be kept in the
dark to avoid further development of skin
lesions. General supportive treatment and
administration of antibiotics are given to
control secondary infection. Glucocorti-
coids in early stages will reduce the inflam-
mation.
References
Ender, F. 1955. Undersøkelser over alveldsykens etiolo-
gi. [Eng.: Etiological studies on “alveld”- a disease
involvingphotosensitization and icterus in lambs].
Nordisk Veterinærmedicin 7: 329-377.
Fláøyen, A. 1993. Studies on the aetiology and patholo-
gy of alveld with some comparisons to sporidesmin
intoxication. Dr. med. vet. thesis, Norges veter-
inærhdgskole. Oslo.
Fláøyen, A., Borrebæk, B. and Nordstoga, K. 1991 a.
Glycogen accumulation and histological changes in
the livers of lambs with alveld and experimental
sporidesmin intoxication. Veterinary Research
Communications 15:443-453.
Fláøyen, A., Hjorth Tønnesen, H„ Grønstøl, H. and
Karlsen, J. 1991b. Failure to induce toxicity in
lambs by administering saponins from Narthecium
ossifragum. Veterinary Research Communications
15: 483-487.
Fláøyen, A. and Jenseri, E. G. 1991. Microsomal en-
zymes in lambs and adult sheep, and their possible
relationship to alveld. Veterinary Research Commu-
nications 15: 271-278.
Ford, E.J.H. 1964. A preliminary investigation of pho-
tosensitization in Scottish sheep. Joumal of Com-
parative PathologylA: 37-44.
Hansen, K. 1966. Vascular plants in the Faeroes. Dansk
Botanisk Arkiv 24, 3. Dansk Botanisk Forening.
København: ppl41.
Miles, C.O., Wilkins, A.L., Munday, S.C., Fláøyen, A.,
Holland, P.T. and Smith, B.L. 1993. Identification
of insoluble salts of the B-D-glucuronides of epis-
arsasapogenin and epismilagenin in the bile of
lambs with alveld and examination of Narthecium
ossifragum, Tribulus terrestris, and Panicum mili-
aceum for sapogenins. Journal of Agricultural and
Food Chemistry 41: 914-917.
Rimington, C. and Quin, J.I. 1933. Photosensitising
agent in ‘geel-dikkop’ phylloerythrin. Nature 132:
178-179.
Summerfield, R.J. 1974. Biological flora of British
Isles. Joumal ofEcology 162: 325-339.
Ame Fláøyen
Department of Reproduction and Forensic Medicine
Norwegian College of Veterinary Medicine
Pob. 8146 Dep.
N-0033 Oslo, Norway
phone: +47 22964500
fax: +47 22964962
E-mail: Ame.Flaaoeyen@veths.no
Jóhannes Jóhansen
Føroya Náttúrugripasavn
Debesartrøð
Fr-100 Tórshavn, The Faroe Islands
phone: +298 12306
fax: +298 18438
E-mail: johannes@nsavn.fo
Jústines Olsen
Djóralæknatænastan
Skansevegi 1
FR-100 Tórshavn, The Faroe Islands
phone: +298 15273
fax: +298 17819