Trace Metal and Pesticide Levels in Muskoxen from Victoria Island, Northwest Territories, Canada

Anti-BrucellaAntibodies in Moose (Alces alces gigas), Muskoxen (Ovibos moschatus), and Plains Bison (Bison bison bison) in Alaska, USA

“…Blood selenium levels in ENS were low compared with WA, and manganese levels in animals from both areas were below adequate when compared with sheep (Ovis aries; Puls 1994). Although mean liver copper levels were marginal to adequate in both areas compared with Canadian muskoxen (Salisbury et al 1992), the median liver copper was low from the ENS, and some animals were low enough to be deemed deficient. Liver molybdenum was low when compared with muskoxen from Victoria Island, Canada (Blakley et al 2000).…”

“…Other trace mineral aberrations (elevated hepatic zinc and iron) could have exacerbated copper deficiency, since these minerals can be copper antagonists (Puls 1994). Average liver zinc levels in both areas were high when compared with muskoxen from Victoria Islands and Banks Island (Salisbury et al 1992), and some individual levels were in the range considered toxic for sheep (Puls 1994). Hepatic storage of iron is reported to increase in sheep during copper deficiency, so detection of high liver iron in both areas could be further evidence of copper deficiency (Puls 1994).…”

“…Liver molybdenum was low when compared with muskoxen from Victoria Island, Canada (Blakley et al 2000). However, liver zinc was high compared with muskoxen from Victoria and Banks Islands (Salisbury et al 1992;Barboza et al 2003) and the range provided by Puls (1994). The mean and median liver selenium values were higher in WA than ENS samples, but both were higher than Canadian muskoxen.…”

“…Muskox liver range (Puls 1994) and published muskox values (Salisbury et al 1992;Puls 1994;Blakley et al 2000;Barboza et al 2003) are included for comparison. Generally, copper, iron, molybdenum, and zinc levels in serum of live adult female muskoxen in both areas were similar.…”

Organochlorine pesticides and polychlorinated biphenyls in air, grass and yak butter from Namco in the central Tibetan Plateau

“…HCB was the most abundant compound in clean environment organisms (Braune, 2007;Goerke et al, 2004). For example, HCB was the predominant chemical in the terrestrial herbivores of Arctic (Braune et al, 1999;Salisbury et al, 1992;Thomas et al, 1992) and in caribou from northwest Canada (Elkin and Bethke, 1995). The p,p 0 -DDE and b-HCH were degradation products of p,p 0 -DDT and a-HCH respectively.…”