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Learning how to eat like a pig: Facilitating vertical information transfer to reduce weaning problems in piglets

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The aim of this thesis was to explore whether providing piglets with more opportunities to learn from their mother about what, how and where to eat increases food intake before and after weaning and consequently can reduce health and welfare problems after weaning.

11 October 2011
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The aim of this thesis was to explore whether providing piglets with more opportunities to learn from their mother about what, how and where to eat increases food intake before and after weaning and consequently can reduce health and welfare problems after weaning. Three ways of learning that could probably be improved in current pig husbandry were chosen: 1) direct learning from the sow through cues derived from observation and eating together, 2) learning in an enriched environment and 3) learning from flavour cues in the maternal diet.

Piglets that were allowed to explore novel food items before weaning in the presence of the sow were less reluctant to explore and ingest these novel food items than in her absence. Being able to interact more and eat together with the sow also had positive effects on food intake before weaning and resulted in less damaging behaviour and more play behaviour after weaning. Piglets learn effectively through both observation of the sow and participation with the sow while she eats, and they use information from both the location and the type of food eaten. Enrichment of the environment before weaning positively affected growth and development of feeding-related behaviours before weaning and food intake after weaning. Providing enrichment after weaning increased growth and feed efficiency and decreased diarrhoea and stress-related behaviours. Allowing piglets to learn from flavours in the diet of the sow both before birth and during lactation and subsequently re-exposing piglets to this flavour at weaning increased their growth and food intake and reduced the incidence of diarrhoea and stress-related behaviours. These effects are the result of reduced weaning stress due to the presence of the familiar flavour in the post weaning environment, rather than the result of an increased intake of similarly flavoured food. In conclusion, information from the sow plays a critical role in the development of independent feeding. Improving opportunities for sow-piglet information transfer enhances the ability of piglets to adapt to the postweaning situation, which consequently reduces weaning-related problems.

Oostindjer, Marije. Learning how to eat like a pig: Facilitating vertical information transfer to reduce weaning problems in piglets. PhD thesis, Wageningen University, the Netherlands.
http://edepot.wur.nl

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12-Oct-2011LorenzoLorenzoMay someone specify what the author means through "Enrichment of the environment" ?
Thanks
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