Naslov
Cadmium in brown bears from Croatia: age and sex differences

Autori
Vihnanek Lazarus, Maja ; Sekovanić, Ankica ; Jurasović, Jasna ; Huber, Đuro ; Reljić, Slaven

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of the 4th Croatian Congress of Toxicology (CROTOX 2012) ; u: Arhiv za higijenu rada i toksikologiju 63 (2012) (S2) / Želježić, Davor - , 2012

Skup
4th Croatian Congress of Toxicology with the international participation

Mjesto i datum
Primošten, Hrvatska, 02.10.2012. - 05.10.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
accumulation; monitoring; tissue; toxic metal; Ursus arctos

Sažetak
Levels of cadmium (Cd) in the environment should be continuously monitored because of its ubiquity and ability to accumulate and exhibit toxic effects in the organism. Brown bears are suitable for Cd monitoring because of their feeding habits (omnivores) and relative longevity compared to other wild animals. There are no published data on metals in Dinara-Pindos bear population of which Croatian bears are a part. In this study, Cd was measured in muscle, liver and kidney cortex of 111 brown bears (Ursus arctos) hunted in Gorski kotar and Lika during 2009 and 2010 according to "The Brown Bear Management Plan for Croatia". Cadmium content was determined using inductively coupled plasma-mass spectrometry. Distribution of Cd across tissues was as follows (median ; range): muscle (0.008 ; 0.0007-1.55 mug/g wet mass), liver (1.02 ; 0.003-8.35 mug/g), kidney (16.5 ; 0.774-139.5 mug/g). Cadmium in all three tissues was 1.5-2.2 times higher in females than in males (p<0.05). Age group (young: ≤3 years ; old >3 years) had significant influence on Cd in liver (p<0.001) and kidney (p<0.001) but not in muscle. Old bears of both sexes contained more Cd in target organs of accumulation then the young ones. Factors causing sex-differences in Cd levels could be hormones, reproductive state, and size variations, all affecting food intake, the principal source of Cd for bears. Regarding maximum levels of Cd allowed in meat, liver and kidney for consumption, bear meat is considered suitable for human consumption but offal should be avoided.

Izvorni jezik
Engleski

Znanstvena područja
Javno zdravstvo i zdravstvena zaštita, Veterinarska medicina

Napomena
Poster presentation P-6

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