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Volume 56, issue 1
Arch. Anim. Breed., 56, 882–891, 2013
https://doi.org/10.7482/0003-9438-56-088
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 56, 882–891, 2013
https://doi.org/10.7482/0003-9438-56-088
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

  10 Oct 2013

10 Oct 2013

Effects of calf separation and injection of oxytocin on milk performance and milk composition of the Polish Red cows

E. Dymnicki1, E. Sosin-Bzducha2, and M. Gołębiewski3 E. Dymnicki et al.
  • 1Institute of Genetics and Animal Breeding; Polish Academy of Sciences, Jastrzębiec, Poland
  • 2National Research Institute of Animal Production; Department of Animal Genetic Resources Conservation, Cracow, Poland
  • 3Warsaw University of Life Sciences, Department of Cattle Breeding, Faculty of Animal Science, Warsaw, Poland

Abstract. The aim of this study was to analyse the yield and composition of milk from Polish Red cattle after 12-hour isolation of calves. Sixty six Polish Red cows were kept together with calves. Control milkings were carried out once a month after 12-hour isolation of calves. Five subsequent milkings after calving were taken under consideration. In the season (May–July 2012) oxytocin (OXT, 1 ml, 3 min before control milking) was injected. The milk of cows milked mechanically after 12-hour isolation of calves was characterized by a very low fat content (0.47–0.58 %) depending on the month after calving. There were no differences in protein and lactose content compared to the standard composition of cow’s milk. The milk yield was 6.16 kg in the first milking after calving and 3.55–4.01 kg in the four further milkings. After administration of OXT a significant increase of milk was observed in the first (12.9 kg) and subsequent months of lactation (8.5–12.4 kg). Milk fat content was significantly higher (4.14 % in the first and 3.39–3.86 % in the further milkings).

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