Friday, January 05, 2007

Ear skin temperature as indicator of well-being

A paper describing Heidi Mai-Lis Andersen's study about the use of an ear skin temperature sensor as indicator of well-being in slaughter pigs has been submitted to Applied Animal Behaviour Science. Heidi is employed in the research and development department at SKOV A/S, and the paper is part of her Ph.D. thesis. SKOV A/S is working in the field of climate control and production monitoring for animal agricultural production, and collaborates with several research institutes. During the final part of her Ph.D. study Heidi has been working in our research group. As a Ph.D. student she was affiliated with the Royal Veterinary and Agricultural University in Copenhagen. Or, since January 1, the Faculty of Life Sciences at the University of Copenhagen, Department of Large Animal Sciences, following the recent restructuring of the Danish research institutes.

  • H. M.-L. Andersen, E. Jørgensen, B. Jørgensen, and L. Dybkjær. The ear skin temperature as an indicator of pigs' thermal comfort. Applied Animal Behaviour Science, submitted, 2007.

Wednesday, January 03, 2007

Pigs' preference for rooting materials

A paper describing the results from the choice experiments with rooting materials has been submitted to Applied Animal Behaviour Science. The statistical method described in the paper about ranking of choice options was developed to analyze the results from this experiment. As mentioned previously the paper is currently in print for Biometrical Journal (I have just checked, it is not yet available online).

The paper was written in collaboration with Margit Bak Jensen, Merete Studnidz and Lene Juul Pedersen, and from our research group Ulrich Halekoh and me. It is a bit strange to see the new affiliation in print. Department of Genetics and Biotechnology, Faculty of Agricultural Sciences, University of Århus, Research Centre Foulum. (Probably it will be institute instead of Department) later on.

We tried to formulate a short and easily read introduction to the random utility model used for the analysis. I wonder whether we have been successful. The formal details of the paper are:

  • M. B. Jensen, M. Studnitz, U. Halekoh, L.J. Pedersen, and E. Jørgensen. Pigs' preferences for rooting materials measured in a three-choice maze-test. Applied Animal Behaviour Science, submitted, 2007.