The effect of different feeding systems on salivary cortisol levels during gestation in sows on herd level
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The effect of different feeding systems on salivary cortisol levels during gestation in sows on herd level. / Bahnsen, Ida; Riddersholm, Kristina V.; de Knegt, Leonardo V.; Bruun, Thomas S.; Amdi, Charlotte.
In: Animals, Vol. 11, No. 4, 1074, 2021.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - The effect of different feeding systems on salivary cortisol levels during gestation in sows on herd level
AU - Bahnsen, Ida
AU - Riddersholm, Kristina V.
AU - de Knegt, Leonardo V.
AU - Bruun, Thomas S.
AU - Amdi, Charlotte
PY - 2021
Y1 - 2021
N2 - The aim of this study was to investigate herd cortisol levels as an indicator of stress during gestation in three different feeding systems. Twelve commercial Danish herds with 800 to 3050 sows were included, with either free‐access feeding stall (Stall), floor feeding (Floor), or electronic sow feeding (ESF; n = 4 herds per system). Saliva samples were collected from 30 sows/herd in the gestation unit for cortisol analysis with an average of 67.2 gestation days for ESF, 72.4 days for Floor, and 68.6 days for Stall. Data on piglet birth weight (PBW) and the percentage of intrauterine growth restricted (IUGR) piglets from 452 litters (9652 piglets, 8677 liveborn) from all 12 herds were obtained on the saliva collection days. The cortisol levels in saliva increased throughout gestation (p < 0.01), and lower concentrations were observed among sows belonging to Stall (4.80 nmol/L), compared to Floor (7.03 nmol/L) and ESF (7.87 nmol/L), and that difference was significant as an inde-pendent effect in the case of ESF (p < 0.01). There was no difference between Floor and ESF or Stall and Floor (p > 0.05). An interaction was observed between parity and feeding system, with parities 4–5 in ESF herds having lower levels than other parities within the ESF system (p = 0.02).
AB - The aim of this study was to investigate herd cortisol levels as an indicator of stress during gestation in three different feeding systems. Twelve commercial Danish herds with 800 to 3050 sows were included, with either free‐access feeding stall (Stall), floor feeding (Floor), or electronic sow feeding (ESF; n = 4 herds per system). Saliva samples were collected from 30 sows/herd in the gestation unit for cortisol analysis with an average of 67.2 gestation days for ESF, 72.4 days for Floor, and 68.6 days for Stall. Data on piglet birth weight (PBW) and the percentage of intrauterine growth restricted (IUGR) piglets from 452 litters (9652 piglets, 8677 liveborn) from all 12 herds were obtained on the saliva collection days. The cortisol levels in saliva increased throughout gestation (p < 0.01), and lower concentrations were observed among sows belonging to Stall (4.80 nmol/L), compared to Floor (7.03 nmol/L) and ESF (7.87 nmol/L), and that difference was significant as an inde-pendent effect in the case of ESF (p < 0.01). There was no difference between Floor and ESF or Stall and Floor (p > 0.05). An interaction was observed between parity and feeding system, with parities 4–5 in ESF herds having lower levels than other parities within the ESF system (p = 0.02).
KW - Feeding system
KW - Gestation
KW - Salivary cortisol
KW - Sows
KW - Stress
U2 - 10.3390/ani11041074
DO - 10.3390/ani11041074
M3 - Journal article
C2 - 33918923
AN - SCOPUS:85103835382
VL - 11
JO - Animals
JF - Animals
SN - 2076-2615
IS - 4
M1 - 1074
ER -
ID: 260301832