Free-range pigs foraging on Jerusalem artichokes (Helianthus tuberosus L.) – Effect of feeding strategy on growth, feed conversion and animal behaviour

@article{Kongsted2013FreerangePF,
  title={Free-range pigs foraging on Jerusalem artichokes (Helianthus tuberosus L.) – Effect of feeding strategy on growth, feed conversion and animal behaviour},
  author={Anne Grete Kongsted and Klaus Horsted and John Erik Hermansen},
  journal={Acta Agriculturae Scandinavica, Section A — Animal Science},
  year={2013},
  volume={63},
  pages={76 - 83}
}
Abstract 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… 
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