Vass, NóraJávor, AndrásBalogh, PéterCseh, Sándor2021-06-282021-06-282010-12-01Acta Agraria Debreceniensis, No. 40 (2010) , 73-762416-1640https://hdl.handle.net/2437/316346Success of the embryo transfer programs is affected by many factors (breed, type, season, treatment). We assume, that periferical blood level of some metabolic hormones (IGF-1, thyroid hormones, leptin, insulin) affects the success of superovulation and ET. According to our results, there is a significant difference between the in and out of season periferial blood level of IGF-1 and insulin. Furthermore, decrease in the periferic blood levels of IGF-1 and insulin is less drastic in the pregnant recipients.application/pdfsheepembryo transfermetabolic hormonesFactors affecting the efficiency of superovulation and embryo transfer. Season and hormonal backgroundfolyóiratcikkOpen Accesshttps://doi.org/10.34101/actaagrar/40/2710Acta Agraria Debreceniensis40Acta agrar. Debr.