Przeglądaj wg Autor "Kotowska, Joanna"

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    The comparison of usefulness results of the primiparous and multiparous cattle of the limousine breed
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Czerniawska-Piątkowska, Ewa; Kotowska, Joanna; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin
    The study was conducted in a herd of cattle kept in pure breed in the Kujawsko- -Pomorskie province. The study included a total of 107 individuals: 27 primiparous and 80 multiparous. Cattle data were obtained from farm documentation maintained on the farm, in accordance with the guidelines of the Polish Association of Breeders and Producers of Cattle (PZHiPBM) for the years 2013–2014. The aim of the study was to compare the performance of primiparous and multiparous of limousine cattle. The work included selected zoometric measurements, fertility and dairy cows as well as calf rearing. Analysis showed significant differences (P ≤ 0.01, P ≤ 0.05) in the case of muscle, chest circumference and height of the cross. The higher values for the given parameters were obtained by the primiparous. It has been found that milk production is higher in primiparous cows, which results in better growth of calves. The age of first calving (WPW) in the groups of animals was similar. The calves after multiparous received a higher birth weight (P ≤ 0.01) compared with calves after the primiparous.