[Show abstract][Hide abstract] ABSTRACT: The acute phase proteins (APP) are a group of serum proteins that change their concentration in animals following external or internal challenges, such as infection, inflammation or stress. The concentrations of four APPs, including serum amyloid A (SAA), haptoglobin (Hp), alpha(1)-acid glycoprotein (AGP) and ceruloplasmin (Cp) were determined in serum collected from healthy Alpine ibexes (Capra ibex) and ibexes with Sarcoptes scabiei mange. Primary structures of all four APPs were determined by cDNA sequencing. The concentrations of all four APPs were higher in serum of animals with clinical signs of sarcoptic mange when compared to healthy animals. Two of the APPs, including SAA and AGP, acted as major APPs, since their serum concentrations were increased more than 10-folds when compared to healthy animals (P<0.001). The other two APPs, including Hp and Cp, acted as minor acute phase proteins, as their concentrations were increased from two to five folds (P<0.001). These findings provide a remarkable potential as diagnostic markers for the early detection of sarcoptic mange in free ranging animals.
No preview · Article · Mar 2010 · Veterinary Parasitology
[Show abstract][Hide abstract] ABSTRACT: In 1995, the hitherto Sarcoptes-free alpine chamois (Rupicapra rupicapra) of the Dolomite Alps (Italy) were affected by scabies for the first time after the spread of the disease from a neighbouring
focus in Austria. Since then, four Agencies cooperated to warrant monitoring of the spatial and temporal progress of the outbreak
and further active surveillance was carried out within an intensive study area. In ten years, 15 meta-populations numbering
10,000 chamois and 210,000ha were encompassed with a maximum distance of 55km from the index case. “Oil spot” advancement
of the epidemic was observed together with “jumps” of 9 to 20km followed by spreading of the infection to the intervening
population units. Demographic decline of the four meta-populations so far affected for a minimum of six years ranged between
49 and 77% (x = 62.5 ±13.5x = 62.5 \pm 13.5), whereas similar post-epidemic densities of 1.1 to 1.7 heads/100ha (x = 1.5 ±0.27x = 1.5 \pm 0.27) were recorded. Contiguous resistant and sensitive herds with similar pre-epidemic density were detected on a smaller population
scale, suggesting complementary mechanisms intervening besides density-dependence as determinants of the outbreak outcome.
No sex or age class showed a higher sensitivity to scabies out of a sample of 1,696 infected chamois. A peak prevalence of
free-ranging chamois bearing overt scabietic lesions was observed in January and February. Cases were only sporadically diagnosed
in other sympatrc wild ruminants (Cervus elaphus, Capreolus capreolus and Ovis gmelini musimon), whereas all four alpine ibex (Capra ibex ibex) herds living in the surveyed area suffered from scabies-induced decline.
No preview · Article · May 2006 · European Journal of Wildlife Research