The distribution of molybdenum in the tissues of wild ducks.
The Mo contents and the relations between Mo and Cu or Cr contents were investigated in the organs of Japanese wild ducks (spotbill duck, pintail, wigeon, scaup and tufted duck). The highest Mo content in kidney and liver of the dabbling ducks were more than 30 microg g(-1) dry weight (microg g(-1) d. wt.), though that of diving ducks were less than 11 microg g(-1) d. wt. The contents were lower in the ducks migrating within Japan, Eurasia and North America than those in the birds migrating between Japan and Eurasia. The contents of liver in all species were more than 50 and less than 5 microg g(-1) d. wt. for Cu and Cr, respectively. Significant correlations were found between Mo and both elements in pintail and scaup, and Mo and Cr in tufted duck. These results suggest that the contamination of wild ducks reflects the reproductive area, and not the collected area. Mo contents closely correlated with the Cu and/or Cr contaminations.
Department of Veterinary Public Health, Nippon Veterinary and Animal Science University, Musashino, Tokyo, Japan. nvau-vph@interlink.or.jp
Mariko
M
Mochizuki
Rei
R
Sasaki
Yuko
Y
Yamashita
Mayumi
M
Akinaga
Nana
N
Anan
Sakura
S
Sasaki
Ryo
R
Hondo
Fukiko
F
Ueda
D000818:Animals; D000835:Animals, Wild / Q000378:metabolism*; D002857:Chromium / Q000493:pharmacokinetics; D003300:Copper / Q000493:pharmacokinetics; D004372:Ducks / Q000378:metabolism*; D004784:Environmental Monitoring / Q000379:methods; D005260:Female; D007668:Kidney / Q000737:chemistry / Q000378:metabolism*; D008099:Liver / Q000737:chemistry / Q000378:metabolism*; D008297:Male; D008982:Molybdenum / Q000032:analysis / Q000493:pharmacokinetics*; D009928:Organ Specificity; D014018:Tissue Distribution
D002857:Chromium; D003300:Copper; D008982:Molybdenum