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    Analysis of the effect of the order of calving, calf sex and milk yield of cows on growth parameters of limousin calves
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2016) Czerniawska-Piątkowska, Ewa; Wróbel, Agnieszka; Cioch, Cioch; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin
    The study was taken in the farm located in West Pomerania province where Limousine cattle in purity of breed were kept. The study included a total of 226 Limousine calves in purity of breed, which were born between 2011 and 2014. Data relating to the rearing of calves were obtained from breeding documentation carried out on the farm. Aim of work was to analyze the effect of order of calving, calf sex and milk yield of cows on growth parameters of Limousin calves. Analysis showed a significant (P ≤ 0.05, P ≤ 0.01) impact of subsequent calving on birth weight of calves. Calves born in the first calving achieved a significantly lower birth weight (32.4 kg) than calves born in next calving (2–4) (respectively, 36.5 kg, 37.3 kg, 37.9 kg). In the case of weaning weight and daily gains were found significant differences (P ≤ 0.01) between bulls and heifers. These factors in bulls were: 267.3 kg and 1093.3 g, while in heifers, respectively, 256.3 kg, 1048.7 g. There has been a significant impact of milk yield of cows on weaning weight and daily gains of calves. Calves whose mothers were characterized by higher milk yield (> 2000 kg) gained respectively 268.3 kg weaning weight and daily gain 1000.5 g. In the group of calves whose mothers were characterized by a lower milk yield (1501–2000 kg), these factors were respectively 244.8 kg and 993.2 g.