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Factors of potential influence on different behavioural tests in fattening pigs

By F. J. Mieloch, S. Nietfeld, C. Straßburg, J. Krieter, E. Grosse Beilage, I. Czycholl

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Abstract

The present study aimed at isolating factors of potential influence on the Novel-Object Test (NOT), the Forced Human-Approach Test (FHAT), the Voluntary Human-Approach Test (VHAT) and the Human-Animal Relationship Test (HART) to draw conclusions about factors that should be considered when using these tests for the evaluation of the welfare level at different farms. Therefore, the NOT, FHAT, VHAT and HART were performed three times on ten different fattening farms. The pigs were tested at pen level, so that all pigs of one pen were examined simultaneously and scored individually during the same test. The pigs at the beginning of fattening (1) were significantly more interested in the novel object than the pigs in the middle of fattening (2) and final fattening (3) (1: 79.3 ± 0.03 % vs. 2: 66.4 ± 0.04 %, 3: 67.7 ± 0.04 % of pigs, p 

Publication Title Applied Animal Behaviour Science
Volume 222
Pages 104900
ISBN/ISSN 0168-1591
DOI https://doi.org/10.1016/j.applanim.2019.104900
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Tags
  1. Behavior and behavior mechanisms
  2. Human-animal relationships
  3. Pigs
  4. tests