Serum and skin surface antibodies and their associations with sheep biting lice, Bovicola ovis, on experimentally infested sheep

James, P. J., Moon, R. D. and Ragsdale, D. W. (1998) Serum and skin surface antibodies and their associations with sheep biting lice, Bovicola ovis, on experimentally infested sheep. Medical and Veterinary Entomology, 12 3: 276-283. doi:10.1046/j.1365-2915.1998.00110.x


Author James, P. J.
Moon, R. D.
Ragsdale, D. W.
Title Serum and skin surface antibodies and their associations with sheep biting lice, Bovicola ovis, on experimentally infested sheep
Formatted title
Serum and skin surface antibodies and their associations with sheep biting lice, Bovicola ovis, on experimentally infested sheep
Journal name Medical and Veterinary Entomology   Check publisher's open access policy
ISSN 0269-283X
1365-2915
Publication date 1998-07
Sub-type Article (original research)
DOI 10.1046/j.1365-2915.1998.00110.x
Volume 12
Issue 3
Start page 276
End page 283
Total pages 8
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing
Language eng
Formatted abstract
The sheep biting louse (Bovicola ovis) feeds superficially on the skin of sheep but appears to stimulate an immune response. In this study we examined the association between louse infestation and serum and skin surface antibodies. Louse numbers were monitored on experimentally infested Polypay and Columbia ewes for two years and on their lambs in the second year. Serum and skin wash samples were tested for antibodies to soluble extracts of B. ovis, Stomoxys calcitrans and Musca autumnalis by enzyme linked immunosorbent assay (ELISA). In addition, the effects of skin wash extracts on B. ovis were examined in vitro.

The titre of anti-B. ovis antibodies in the serum did not differ significantly between infested and naive ewes. However, there was an increase in serum antibody titre which coincided with periods of high louse density in ewes with high louse counts. Infested lambs had higher serum antibody levels than naive lambs. Substantial cross reactivity was evident among extracts of the different insects.

Densities of lice on the ewes during population decline were negatively related to the titre of skin surface antibodies. Skin washings collected from sheep during B. ovis population decline reduced the number of louse progeny when incorporated into louse diet. These results indicate that B. ovis stimulates an immune response in sheep and suggest that compounds on the skin surface may play a role in the regulation of louse populations.
Keyword Bovicola ovis
Mallophaga
Parasite
Sheep skin
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Mon, 07 Mar 2011, 15:11:35 EST