Elimination behavior and soil mineral nitrogen load in an organic system with lactating sows – comparing pasture-based systems with and without access to poplar (Populus sp.) trees

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Elimination behavior and soil mineral nitrogen load in an organic system with lactating sows – comparing pasture-based systems with and without access to poplar (Populus sp.) trees. / Jakobsen, Malene; Hermansen, John Erik; Andersen, Heidi Mai-Lis; Jørgensen, Uffe; Labouriau, Rodrigo; Kongsted, Anne Grete; Rasmussen, Jim.

In: Agroecology and Sustainable Food Systems, 13.11.2018, p. 1-24.

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@article{3142f60a60ce4d3cb228e7dde286f2e4,
title = "Elimination behavior and soil mineral nitrogen load in an organic system with lactating sows – comparing pasture-based systems with and without access to poplar (Populus sp.) trees",
abstract = "Innovative strategies in free-range pig production are needed to improve the environmental performance of the system. Based on previous studies, inclusion of trees was hypothesized to improve the system’s nitrogen efficiency. We investigated sow elimination behavior, feces load, and localization as well as soil mineral nitrogen load in pasture-based individual paddocks with and without access to two rows of poplar (Populus sp.) trees. In contrast to what was expected, sows showed no preference for eliminating in the zone with poplars but clearly avoided defecating near the hut, feed, and water. Soil mineral nitrogen load showed a heterogeneous pattern as also found in previous studies. In comparison to grass, our results indicated that the poplars had an increased winter uptake of nitrate from deeper soil layers.",
keywords = "Organic farming, free-range pigs, lactating sows, poplar trees, elimination behavior, soil inorganic nitrogen, cbio",
author = "Malene Jakobsen and Hermansen, {John Erik} and Andersen, {Heidi Mai-Lis} and Uffe J{\o}rgensen and Rodrigo Labouriau and Kongsted, {Anne Grete} and Jim Rasmussen",
year = "2018",
month = "11",
day = "13",
doi = "10.1080/21683565.2018.1541039",
language = "English",
pages = "1--24",
journal = "Journal of Sustainable Agriculture",
issn = "1044-0046",
publisher = "Taylor & Francis Inc.",

}

RIS

TY - JOUR

T1 - Elimination behavior and soil mineral nitrogen load in an organic system with lactating sows – comparing pasture-based systems with and without access to poplar (Populus sp.) trees

AU - Jakobsen, Malene

AU - Hermansen, John Erik

AU - Andersen, Heidi Mai-Lis

AU - Jørgensen, Uffe

AU - Labouriau, Rodrigo

AU - Kongsted, Anne Grete

AU - Rasmussen, Jim

PY - 2018/11/13

Y1 - 2018/11/13

N2 - Innovative strategies in free-range pig production are needed to improve the environmental performance of the system. Based on previous studies, inclusion of trees was hypothesized to improve the system’s nitrogen efficiency. We investigated sow elimination behavior, feces load, and localization as well as soil mineral nitrogen load in pasture-based individual paddocks with and without access to two rows of poplar (Populus sp.) trees. In contrast to what was expected, sows showed no preference for eliminating in the zone with poplars but clearly avoided defecating near the hut, feed, and water. Soil mineral nitrogen load showed a heterogeneous pattern as also found in previous studies. In comparison to grass, our results indicated that the poplars had an increased winter uptake of nitrate from deeper soil layers.

AB - Innovative strategies in free-range pig production are needed to improve the environmental performance of the system. Based on previous studies, inclusion of trees was hypothesized to improve the system’s nitrogen efficiency. We investigated sow elimination behavior, feces load, and localization as well as soil mineral nitrogen load in pasture-based individual paddocks with and without access to two rows of poplar (Populus sp.) trees. In contrast to what was expected, sows showed no preference for eliminating in the zone with poplars but clearly avoided defecating near the hut, feed, and water. Soil mineral nitrogen load showed a heterogeneous pattern as also found in previous studies. In comparison to grass, our results indicated that the poplars had an increased winter uptake of nitrate from deeper soil layers.

KW - Organic farming, free-range pigs, lactating sows, poplar trees, elimination behavior, soil inorganic nitrogen

KW - cbio

U2 - 10.1080/21683565.2018.1541039

DO - 10.1080/21683565.2018.1541039

M3 - Journal article

SP - 1

EP - 24

JO - Journal of Sustainable Agriculture

JF - Journal of Sustainable Agriculture

SN - 1044-0046

ER -