Seasonal variation of sex hormones and semen quality in Simental bulls
Kowalczyk, Alicja, Gruszczyńska, Joanna, Kuczaj, Marian, Czerniawska-Piątkowska, Ewa, Grzegrzółka, Beata, Szul, Anna, Hebda, Leszek, Świderek, Wiesław Piotr
Analysis of Correlations Between Selected Blood Markers of Liver Function and Milk Composition in Cows During Late Lactation Period
Mordak, Ryszard, Kupczyński, Robert, Kuczaj, Marian, Niżański, Wojciech