Kongsted, A.G.; Horsted, K. and Hermansen, J.E. (2013) Free-range pigs foraging on Jerusalem artichokes (Helianthus tuberosus L.) – Effect of feeding strategy on growth, feed conversion and animal behaviour. Acta Agriculturae Scandinavica, Section A – Animal Science, 63, pp. 76-83.
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Summary
The nutritional contributions from free-range foraging, growth, feed conversion and behaviour were investigated in 36 growing pigs foraging on Jerusalem artichokes (JA) and fed concentrates restrictedly (30% of energy recommendations) or ad libitum. Compared to the ad libitum fed pigs, the pigs fed restrictedly had a significant lower daily gain (560 vs. 1224 g pig_1), improved feed conversion ratio (17.6 vs. 42.8 MJ ME concentrate kg_1 live weight gain) and spent more time foraging JA tubers (7.9 vs. 1.1%). It is estimated that pigs fed restrictedly found approximately 60% of their energy requirement from foraging in the range.
| EPrint Type: | Journal paper |
|---|---|
| Keywords: | Body condition; growing-finishing; outdoor |
| Subjects: | Animal husbandry > Production systems > Pigs |
| Research affiliation: | Denmark > Organic RDD 1 > SUMMER |
| DOI: | 10.1080/09064702.2013.787116 |
| Deposited By: | Kirkegaard, Lene/LKI |
| ID Code: | 22628 |
| Deposited On: | 21 Jun 2013 07:26 |
| Last Modified: | 10 Nov 2014 15:06 |
| Document Language: | English |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
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