Does hut climate matter for piglet survival in organic production?
| Autor: | Marianne Bonde, Heidi Mai-Lis Andersen, Lene Juul Pedersen, Leslie Foldager, Sarah-Lina Aagaard Schild |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Time Factors
outdoor pig production 040301 veterinary sciences Swine media_common.quotation_subject Denmark organic Organic production HEAT Biology SF1-1100 0403 veterinary science Animal science Pregnancy medicine neonatal piglet mortality Animals Animal Husbandry media_common HYPOTHERMIA Organic Agriculture 0402 animal and dairy science Temperature humidity temperature 04 agricultural and veterinary sciences Stillbirth rate Seasonality Stillbirth PERFORMANCE medicine.disease 040201 dairy & animal science Housing Animal Survival Analysis Animal culture Animals Newborn Herd Animal Science and Zoology Female Seasons Reproduction |
| Zdroj: | Schild, S-L A, Foldager, L, Bonde, M, Andersen, H M-L & Pedersen, L J 2019, ' Does hut climate matter for piglet survival in organic production? ', Animal, vol. 13, no. 4, pp. 826-834 . https://doi.org/10.1017/S175173111800201X Animal, Vol 13, Iss 4, Pp 826-834 (2019) |
| Popis: | Piglet mortality in outdoor production systems varies across the year, and a reason for this variation could be fluctuations in hut climate, as ambient temperature might influence piglet survival, both directly and indirectly. Therefore, the aim of the current study was to investigate the impact of farrowing hut climate and year variation on stillbirth and liveborn mortality. A large-scale observational study was conducted at five commercial organic pig-producing herds in Denmark from June 2015 to August 2016. Both year variation (F3,635=4.40, P=0.004) and farrowing hut temperature (F2,511=6.46, P=0.002) affected the rate of stillbirths. The risk of stillborn piglets was lowest in winter and during this season larger changes in hut temperature between day 1 prepartum and the day of farrowing increased the risk of stillbirths (F1,99=6.39, P=0.013). In addition, during the warm part of the year stillbirth rate increased at temperatures ⩾27°C. Year variation also affected liveborn mortality (F3,561=3.86, P=0.009) with a lower rate of liveborn deaths in spring. However, the hut climate did not influence liveborn deaths. Consequently, other factors than hut climate may explain the influence of year variation on liveborn mortality. These could be light differences causing seasonality in reproduction and lactation. |
| Databáze: | OpenAIRE |
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