Title
THE CHANGE IN AGE OF THE FIRST CALVING AND PERIOD OF USING OF DAIRY CATTLE FROM ZZD IZ PAWŁOWICE
Autor
Zbigniew Sobek, Ireneusz Dymarski, Marta Rzemykowska
Keywords
age of the first calving, dairy cows, length of life, period of use
Abstract
There were 5287 cows from ZZD IZ in Pawłowice between 1949 and 1999 examined. One has observed a tendency of a shortenage of a length of life and of a period of use. There was also seen a tendency of not a big increase of weight during the first calving.
Pages
105-120
Cite
Sobek, Z., Dymarski, I., Rzemykowska, M. (2006). THE CHANGE IN AGE OF THE FIRST CALVING AND PERIOD OF USING OF DAIRY CATTLE FROM ZZD IZ PAWŁOWICE. Acta Sci. Pol. Zootechnica, 5(1), 105-120.
Full text
