TY - JOUR

T1 - Early risk factors, development, disappearance and contents of umbilical outpouching in Danish pigs

AU - Hovmand-Hansen, Trine

AU - Jensen, Tina B.

AU - Vestergaard, Kaj

AU - Nielsen, Mai Britt F.

AU - Leifsson, Páll S.

AU - Jensen, Henrik E.

N1 - Publisher Copyright: © 2021

PY - 2021

Y1 - 2021

N2 - The main objective of the study was to identify early risk factors associated with the development of umbilical outpouchings (UOs) in pigs. Secondly, to describe 1) the nature of UOs, 2) the age when UOs become visible, and 3) at which age UOs spontaneously may regress and disappear. A longitudinal study following pigs (n=3031) from birth to slaughter was carried out in two commercial Danish herds. In total, 8 % (n=255) of the pigs developed an UO between birth and death (spontaneous, euthanasia or slaughter). The odds for developing an UO was significantly lower for males than females (OR, 0.7; 95% CL, 0.5-0.9). Pigs born immature (OR, 3.4; 95% CL, 1.3-8.2) or observed with: 1) clinical sign of omphalitis (OR, 1.8; 95% CL, 1.1-2.8), 2) a elongated moist umbilical cord at birth (OR, 5.1; 95% CL, 2.6-9.8) or 3) a healed or healing protruding umbilicus in the second week after birth (OR, 1.9; 95% CL, 1.4-2.6) were associated with significant higher odds of developing an UO. No significant association (p-value >0.05) was found between the development of UOs and sow parity, litter size, birth weight and length of the umbilical cord. The nature of the UOs were mainly due to umbilical herniation and/or formation of abscesses or fibrosis. The majority of UOs became visible within the first 10 weeks of age (80%, n=234). Spontaneous regression of the UOs occurred in 14% (n=36) of the pigs; 83% (n=30) disappeared between the 4th and 14th week. Identifying piglets with high odds of developing UOs makes it possible to identify to which pig special attention should be paid during the daily management.

AB - The main objective of the study was to identify early risk factors associated with the development of umbilical outpouchings (UOs) in pigs. Secondly, to describe 1) the nature of UOs, 2) the age when UOs become visible, and 3) at which age UOs spontaneously may regress and disappear. A longitudinal study following pigs (n=3031) from birth to slaughter was carried out in two commercial Danish herds. In total, 8 % (n=255) of the pigs developed an UO between birth and death (spontaneous, euthanasia or slaughter). The odds for developing an UO was significantly lower for males than females (OR, 0.7; 95% CL, 0.5-0.9). Pigs born immature (OR, 3.4; 95% CL, 1.3-8.2) or observed with: 1) clinical sign of omphalitis (OR, 1.8; 95% CL, 1.1-2.8), 2) a elongated moist umbilical cord at birth (OR, 5.1; 95% CL, 2.6-9.8) or 3) a healed or healing protruding umbilicus in the second week after birth (OR, 1.9; 95% CL, 1.4-2.6) were associated with significant higher odds of developing an UO. No significant association (p-value >0.05) was found between the development of UOs and sow parity, litter size, birth weight and length of the umbilical cord. The nature of the UOs were mainly due to umbilical herniation and/or formation of abscesses or fibrosis. The majority of UOs became visible within the first 10 weeks of age (80%, n=234). Spontaneous regression of the UOs occurred in 14% (n=36) of the pigs; 83% (n=30) disappeared between the 4th and 14th week. Identifying piglets with high odds of developing UOs makes it possible to identify to which pig special attention should be paid during the daily management.

KW - Omphalitis

KW - Pigs

KW - Umbilical hernia

KW - Umbilical outpouching

KW - Welfare

U2 - 10.1016/j.livsci.2021.104654

DO - 10.1016/j.livsci.2021.104654

M3 - Journal article

AN - SCOPUS:85104353894

VL - 251

JO - Livestock Science

JF - Livestock Science

SN - 1871-1413

M1 - 104654

ER -