The aim of the study was to determine the impacts of different levels of mycotoxin load of dairy herds on the milk indicators. During three subsequent years, samples of feedstuffs and individual milk were collected from four herds of Czech Fleckvieh and from four herds of Holstein cows. The most frequently occurring mycotoxins were fumonisins, deoxynivalenol, and zearalenone. Changes were noted in some milk indicators such as fat, acetone, pH, electric conductivity, alcohol stability, or curd quality.

Our studies evaluated the effects of parity and season on pregnancy rates of repeat-breeder (RB) Japanese black beef cattle after embryo transfer. Our findings indicate that the parity of the recipients does not have an apparent effect on the pregnancy rates following the transfer of fresh and frozen embryos. However, season may affect reproductive performance in RB multiparous cows.