Høøk Presto, M.; Andersson, H.K.; Wallgren, P. and Lindberg, J.E. (2008) Influence of amino acid level and production system on performance, health and behaviour in organic growing pigs. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.
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The influence of dietary amino acid levels (recommended, 7% and 14% lower) on performance and carcass quality was studied in organic indoor and outdoor pigs fed ad libitum in a 2-phase feeding system. The outdoor pigs grew faster during phase 2 than the indoor pigs (p=0.001), although feed conversion ratio did not differ (p=0.358). Dressing percentage was higher for outdoor than for indoor pigs (p=0.011) but lean meat content did not differ (p=0.904). The results indicate a discrepancy between pigs housed in different production systems rather than between pigs directed to different dietary amino acid levels. This suggests that growing/finishing pigs fed ad libitum can compensate for dietary amino acid levels lower than the current Swedish recommendations without affecting production results.
Behaviour was affected by production system and showed that outdoor pigs walked significantly more (p=0.012) and tended to be rooting more (p=0.098) than indoor pigs. Sniffing, nibbling, pushing (p=0.001 for all) and tail manipulation (p=0.002) occurred more often indoors than outdoors. The incidence of pigs seropositive to erysipelas was higher outdoors (χ2-test; p=0.001). Ascaris suum infections were present in both production systems, whereas Eimeria sp only was found among outdoor pigs.
|EPrint Type:||Conference paper, poster, etc.|
|Type of presentation:||Poster|
|Keywords:||lysine, production systems, growing pigs, social interactions, health|
|Subjects:|| Animal husbandry|
Animal husbandry > Health and welfare
Animal husbandry > Feeding and growth
|Research affiliation:||International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 3.4 Animal health and nutrition – non ruminants|
|Deposited By:||Høøk Presto, Magdalena|
|Deposited On:||30 Sep 2008|
|Last Modified:||12 Apr 2010 07:35|
|Refereed:||Peer-reviewed and accepted|
|Additional Publishing Information:||This paper is published in the conference proceedings: |
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. http://orgprints.org/13672 and http://orgprints.org/13674
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