Tejelö tehenek szivritmusa és szivritmus- váitozékonysága hagyomanyos es robotizait fejesi rendszerekben

Translated title of the contribution: Heart rate and heart rate variability of dairy cows milked in conventional and automatic milking systems

Kovács Levente, Kézér Fruzsina Luca, Jurkovich Viktor, Szenci Otto, Tözsér János

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1 Citation (Scopus)

Abstract

The authors compared heart rate (HR) and heart rate variability (HRV) parameters of dairy cows (N=18; parity: 2.34±1.12; milk yield: 24.40±6.78 kgld; DIM: 148.30±57.44) during milking in a conventional system to those of the same animals when milked after changeover to an automatic milking system. They analyzed HRV parameters in frequency (IF, HF, IF/HF) and geometric domain by Poincaré plot (SD1, SD2, SD2ISD1). When conventional milking was in operation, HR was higher in the holding area, before entering the milking parlour/milking unit and during milking (P=0.000; P=0.000; P=0.046, respectively) compared to HR in the mentioned phases in the automatic milking system. Sympathetic HRV parameters SD2 and 5D2/SD1 measured in the conventional system during the phases of waiting in the holding area, before entering the milking parlour/milking unit, and during udder preparation were also higher compared to automatic milking (P=0.012 and P=0.013; P=0.0012 and P=0.004; P=0.033 and P=0.031, respectively). Based on the results, the conventional milking process imposed greater stress on the animals, particularly in the holding area, before entering the milking parlour/milking unit and during udder preparation.

Original languageHungarian
Pages (from-to)133-140
Number of pages8
JournalMagyar Allatorvosok Lapja
Volume136
Issue number3
Publication statusPublished - Mar 2014

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ASJC Scopus subject areas

  • veterinary(all)

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