Production of beef and milk is increasingly becoming an important economic sector because of the greater interest and need for these products. Therefore the selection is aimed to create early maturing and productive animals.

One hundred Holstein dairy cows in transition period were enrolled in our study between -21 to -14 day before calving (close-up) which were fed by commercial anionic salts supplements. After enrollment, the animals were ...

During our experiments 9 dairy cows were treated intramammally with Rilexin 200 T (containing cephalexin) and their milk was sampled within the withdrawal time. The antibiotic (cephalexin) content milk samples ware heat ...