Finn-Arne Haugen
Head of Department
Authors
Paul Eric Aspholm David Kniha Hans Geir Eiken Snorre Hagen Ida Marie Bardalen Fløistad Ingrid Helle Søvik Ane-Sofie Bednarczyk Hansen Simo Maduna Cornelya Klutsch Finn-Arne HaugenAbstract
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Abstract
The Norwegian sheep industry is based on utilization of “free” rangeland pasture resources. Use of mountain pastures is dominating, with about two million sheep grazing these pastures during summer. Regional challenges related to e.g., loss of sheep to large carnivores make farmers think differently. The Norwegian coastline is among the longest globally and is scattered with islets and islands. Alone along the coast of Nordland county, it is estimated more than 14,000 islands. Use of islands for summer pasture is an alternative but there is a limited knowledge about such a management system. In this study, we examined lambs' average daily gain on island pastures at the coast of Norway. In total 230 lambs on three islands (Sandvær, Sjonøya, and Buøya), with varying pasture quality and stocking rate, for 3 years (2012, 2013, and 2014). At Sandvær as much as 92% of the island was characterized as high nutritional value while at Sjonøya and Buøya only 15%, was characterized high nutritional value. We found an average daily lamb growth rate of 0.320 kg d−1. Lambs on Sandvær had a higher daily gain (P < 0.05) than those on Sjonøya and Buøya, and lambs' average daily gain was significantly lower (P < 0.05) in 2013 compared to 2012 and 2014. We conclude that with a dynamic and adaptive management strategy there is a potential to utilize islands for sheep grazing during summer.
Authors
Finn-Arne HaugenAbstract
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Authors
Finn-Arne HaugenAbstract
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Authors
Finn-Arne HaugenAbstract
No abstract has been registered