Naslov
Changes in serum concentration of 17 beta-estradiol in female rats during estrous cycle after treatment with atrazine and zearalenone

Autori
Mitak, Mario ; Gojmerac, Tihomira ; Mandić, Božica ; Cvetnić, Željko

Izvornik
Veterinarni Medicina (0375-8427) 46 (2001), 5; 145-148

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Atrazine; Zearalenone; Estrous cycle; 17brta-estradiol; serum; rat

Sažetak
A daily dose of 14 mg atrazine and 2.5 mg zearalenone, given p.o. during 5 days of estrous cycle to female rats, changed their estrous cycle in comparison with control animals. On day &#8211; 1 of expected estrus, a significantly lower (p<0.05) concentration of 17beta-estradiol compared with the control group was recorded in all experimental groups of animals. In the group of animals administered zearalenone, the concentration of 17beta-estradiol on the day of expected estrus was significantly higher (p<0.05). In the group administered a combination of atrazine and zearalenone, the concentration of 17beta-estradiol on the day after expected estrus was significantly higher (p<0.05) than in the control group. In the group of animals receiving atrazine, complete absence of the onset of estrous cycle was recorded, whereas in the group given zearalenone the onset of estrous cycle was delayed by 24 hours. The combination of atrazine and zearalenone induced similar effects as atrazine, however, with the onset of estrous cycle being delayed by 48 hours. Neither of these two groups of animals reached the level of 17beta-estradiol recorded in the control group.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

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