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Open AccessArticle

Influence of Increased Light Intensity on the Acceptance of a Solid Lying Area and a Slatted Elimination Area in Fattening Pigs

1
Institute of Agricultural Engineering, University of Hohenheim, Garbenstraße 9, 70599 Stuttgart, Germany
2
Bildungs- und Wissenszentrum Boxberg, Seehöfer Str. 50, 97944 Boxberg-Windischbuch, Germany
3
Institute of Crop Science, University of Hohenheim, Fruwirthstr. 23, 70599 Stuttgart, Germany
*
Author to whom correspondence should be addressed.
Agriculture 2020, 10(3), 56; https://doi.org/10.3390/agriculture10030056
Received: 14 January 2020 / Revised: 20 February 2020 / Accepted: 22 February 2020 / Published: 27 February 2020
Animal welfare labels have been introduced to improve housing conditions in conventional pig systems. Animal welfare should be increased by, e.g. offering a well-accepted and comfortable solid lying area. This study investigates the effect of bright light from an LED spotlight in the slatted area on lying and elimination behavior of fattening pigs. It was tested for two pen designs different in feeder and arrangement of the slatted area with 18 pigs per pen. The study took place in two different compartments (spatial repetition) with two pens of each pen design. The light intensity in the slatted area was increased by two spotlights within one pen of each design as case-control approach. A total of 648 fattening pigs were tested over four and five fattening periods respectively. The lying behavior was assessed by video scan sampling at three different weekdays at three times (morning, noon, evening) on each observation day. On average, the lying area was used by 60–63% of the pigs in the control pens and 67–69% in the spotlight pens. Additionally, a tendential effect of the deviation of the room temperature from the set temperature existed. The fouling of the animals and pen was not affected by the light intensity. View Full-Text
Keywords: lying behavior; pen fouling; fattening pigs; light intensity; solid lying area lying behavior; pen fouling; fattening pigs; light intensity; solid lying area
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MDPI and ACS Style

Opderbeck, S.; Keßler, B.; Gordillo, W.; Schrade, H.; Piepho, H.-P.; Gallmann, E. Influence of Increased Light Intensity on the Acceptance of a Solid Lying Area and a Slatted Elimination Area in Fattening Pigs. Agriculture 2020, 10, 56.

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