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Lene Juul Pedersen

Causes of preweaning mortality in organic outdoor sow herds

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Causes of preweaning mortality in organic outdoor sow herds. / Rangstrup-Christensen, Lena; Schild, Sarah Lina Aagaard; Pedersen, Lene Juul; Sørensen, Jan Tind.

In: Research in Veterinary Science, Vol. 118, 01.06.2018, p. 171-180.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Rangstrup-Christensen, L, Schild, SLA, Pedersen, LJ & Sørensen, JT 2018, 'Causes of preweaning mortality in organic outdoor sow herds', Research in Veterinary Science, vol. 118, pp. 171-180. https://doi.org/10.1016/j.rvsc.2018.02.010

APA

Rangstrup-Christensen, L., Schild, S. L. A., Pedersen, L. J., & Sørensen, J. T. (2018). Causes of preweaning mortality in organic outdoor sow herds. Research in Veterinary Science, 118, 171-180. https://doi.org/10.1016/j.rvsc.2018.02.010

CBE

Rangstrup-Christensen L, Schild SLA, Pedersen LJ, Sørensen JT. 2018. Causes of preweaning mortality in organic outdoor sow herds. Research in Veterinary Science. 118:171-180. https://doi.org/10.1016/j.rvsc.2018.02.010

MLA

Rangstrup-Christensen, Lena et al. "Causes of preweaning mortality in organic outdoor sow herds". Research in Veterinary Science. 2018, 118. 171-180. https://doi.org/10.1016/j.rvsc.2018.02.010

Vancouver

Rangstrup-Christensen L, Schild SLA, Pedersen LJ, Sørensen JT. Causes of preweaning mortality in organic outdoor sow herds. Research in Veterinary Science. 2018 Jun 1;118:171-180. https://doi.org/10.1016/j.rvsc.2018.02.010

Author

Rangstrup-Christensen, Lena ; Schild, Sarah Lina Aagaard ; Pedersen, Lene Juul ; Sørensen, Jan Tind. / Causes of preweaning mortality in organic outdoor sow herds. In: Research in Veterinary Science. 2018 ; Vol. 118. pp. 171-180.

Bibtex

@article{41cb28c90ec6403694c2bd1b5e9155ee,
title = "Causes of preweaning mortality in organic outdoor sow herds",
abstract = "The aims of the current study were to identify the causes of preweaning piglet mortality and investigate the effect of season and parity on the proportions of mortality causes. The study was conducted in nine herds over a one-year period, and dead piglets were collected for necropsy once during each of the four seasons. In total, 2672 piglets were necropsied of which 60{\%} were live-born but died post-partum (pp), 32{\%} were stillborn and 8{\%} were euthanised. Intra-partum deaths accounted for 88{\%} of stillborn piglets. Eighty-one percent of necropsied live-born piglets died within four days pp. Half of these had a body weight of <1 kg at the time of death. Crushed and starved piglets accounted for 83{\%} and 9{\%} of mortalities until day four pp, respectively. Thirty-three percent of the crushed piglets (age zero to four days) had not suckled prior to death and the proportion of these piglets was lower in summer compared to the remaining part of the year (OR = 0.6, 95{\%} CI [0.5;0.9]) and was higher for multiparous sows compared to first parity sows (OR = 1.7, 95{\%} CI [1.1;2.6]). In conclusion, sow parity and season affected the proportion of crushed piglets before four days of age. Furthermore, the group of crushed piglets was heterogeneous and consisted of both heavy well-fed piglets and small piglets with empty stomachs. Thus, management implementations to lower mortality may differ depending on sow parity, season and individual piglet characteristics.",
keywords = "Crushing, Necropsy, Organic production, Piglet mortality, Stillbirth",
author = "Lena Rangstrup-Christensen and Schild, {Sarah Lina Aagaard} and Pedersen, {Lene Juul} and S{\o}rensen, {Jan Tind}",
year = "2018",
month = "6",
day = "1",
doi = "10.1016/j.rvsc.2018.02.010",
language = "English",
volume = "118",
pages = "171--180",
journal = "Research in Veterinary Science",
issn = "0034-5288",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Causes of preweaning mortality in organic outdoor sow herds

AU - Rangstrup-Christensen, Lena

AU - Schild, Sarah Lina Aagaard

AU - Pedersen, Lene Juul

AU - Sørensen, Jan Tind

PY - 2018/6/1

Y1 - 2018/6/1

N2 - The aims of the current study were to identify the causes of preweaning piglet mortality and investigate the effect of season and parity on the proportions of mortality causes. The study was conducted in nine herds over a one-year period, and dead piglets were collected for necropsy once during each of the four seasons. In total, 2672 piglets were necropsied of which 60% were live-born but died post-partum (pp), 32% were stillborn and 8% were euthanised. Intra-partum deaths accounted for 88% of stillborn piglets. Eighty-one percent of necropsied live-born piglets died within four days pp. Half of these had a body weight of <1 kg at the time of death. Crushed and starved piglets accounted for 83% and 9% of mortalities until day four pp, respectively. Thirty-three percent of the crushed piglets (age zero to four days) had not suckled prior to death and the proportion of these piglets was lower in summer compared to the remaining part of the year (OR = 0.6, 95% CI [0.5;0.9]) and was higher for multiparous sows compared to first parity sows (OR = 1.7, 95% CI [1.1;2.6]). In conclusion, sow parity and season affected the proportion of crushed piglets before four days of age. Furthermore, the group of crushed piglets was heterogeneous and consisted of both heavy well-fed piglets and small piglets with empty stomachs. Thus, management implementations to lower mortality may differ depending on sow parity, season and individual piglet characteristics.

AB - The aims of the current study were to identify the causes of preweaning piglet mortality and investigate the effect of season and parity on the proportions of mortality causes. The study was conducted in nine herds over a one-year period, and dead piglets were collected for necropsy once during each of the four seasons. In total, 2672 piglets were necropsied of which 60% were live-born but died post-partum (pp), 32% were stillborn and 8% were euthanised. Intra-partum deaths accounted for 88% of stillborn piglets. Eighty-one percent of necropsied live-born piglets died within four days pp. Half of these had a body weight of <1 kg at the time of death. Crushed and starved piglets accounted for 83% and 9% of mortalities until day four pp, respectively. Thirty-three percent of the crushed piglets (age zero to four days) had not suckled prior to death and the proportion of these piglets was lower in summer compared to the remaining part of the year (OR = 0.6, 95% CI [0.5;0.9]) and was higher for multiparous sows compared to first parity sows (OR = 1.7, 95% CI [1.1;2.6]). In conclusion, sow parity and season affected the proportion of crushed piglets before four days of age. Furthermore, the group of crushed piglets was heterogeneous and consisted of both heavy well-fed piglets and small piglets with empty stomachs. Thus, management implementations to lower mortality may differ depending on sow parity, season and individual piglet characteristics.

KW - Crushing

KW - Necropsy

KW - Organic production

KW - Piglet mortality

KW - Stillbirth

U2 - 10.1016/j.rvsc.2018.02.010

DO - 10.1016/j.rvsc.2018.02.010

M3 - Journal article

C2 - 29494997

AN - SCOPUS:85042495089

VL - 118

SP - 171

EP - 180

JO - Research in Veterinary Science

JF - Research in Veterinary Science

SN - 0034-5288

ER -