Behavioural alterations in piglets after surgical castration: Effects of analgesia and anaesthesia

Jinhyeon Yun, Anna Ollila, Anna Valros, Maria Paula Larenza Menzies, Mari Heinonen, Claudio Oliviero, Olli Peltoniemi

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Sammanfattning

The present study aimed to use behavioural measures to assess pain induced by surgical castration of piglets, and evaluate the efficacy of pain-relief medications. In total, 143 male piglets from 29 sows were used. The treatments included: 1) non-castration (NC; n = 28), 2) castration without medication (SC; n = 29), 3) castration with meloxicam injection 0.4 mg/kg i.m. (ME; n = 28), 4) castration with 0.5 ml of 2% lidocaine in each testicle (LA; n = 29), and 5) castration with general inhalation anaesthesia using isoflurane (1.5%) and meloxicam injection (GA; n = 29). Behaviour was monitored continuously for a ten minute period one hour prior to castration (−1 h), as well as immediately (0 h), one hour (1 h), and two hours (2 h) after castration. Behaviour was also monitored twice (08:00 and 20:00) during the following day. Compared to −1 h, castration induced changes in several behavioural measures in SC piglets at 0 h, suggesting that castration was painful. Furthermore, inactive standing or sitting, tail wagging and aggressive behaviour differed between SC and NC piglets at 0 h. ME and LA piglets spent less time standing or sitting inactively, and LA and GA piglets showed more tail wagging than SC piglets at 0 h (P < 0.05 for all). No other behavioural measures differed among the various groups of castrated piglets. In conclusion, the results indicate that surgical castration is indeed painful. However, the efficacy of various pain-relief protocols in piglets shortly after castration was not verified.
Originalspråkengelska
TidskriftResearch in Veterinary Science
Volym125
Sidor (från-till)36-42
Antal sidor7
ISSN0034-5288
DOI
StatusPublicerad - 1 aug 2019
MoE-publikationstypA1 Tidskriftsartikel-refererad

Vetenskapsgrenar

  • 413 Veterinärvetenskap

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title = "Behavioural alterations in piglets after surgical castration: Effects of analgesia and anaesthesia",
abstract = "The present study aimed to use behavioural measures to assess pain induced by surgical castration of piglets, and evaluate the efficacy of pain-relief medications. In total, 143 male piglets from 29 sows were used. The treatments included: 1) non-castration (NC; n = 28), 2) castration without medication (SC; n = 29), 3) castration with meloxicam injection 0.4 mg/kg i.m. (ME; n = 28), 4) castration with 0.5 ml of 2{\%} lidocaine in each testicle (LA; n = 29), and 5) castration with general inhalation anaesthesia using isoflurane (1.5{\%}) and meloxicam injection (GA; n = 29). Behaviour was monitored continuously for a ten minute period one hour prior to castration (−1 h), as well as immediately (0 h), one hour (1 h), and two hours (2 h) after castration. Behaviour was also monitored twice (08:00 and 20:00) during the following day. Compared to −1 h, castration induced changes in several behavioural measures in SC piglets at 0 h, suggesting that castration was painful. Furthermore, inactive standing or sitting, tail wagging and aggressive behaviour differed between SC and NC piglets at 0 h. ME and LA piglets spent less time standing or sitting inactively, and LA and GA piglets showed more tail wagging than SC piglets at 0 h (P < 0.05 for all). No other behavioural measures differed among the various groups of castrated piglets. In conclusion, the results indicate that surgical castration is indeed painful. However, the efficacy of various pain-relief protocols in piglets shortly after castration was not verified.",
keywords = "ANIMALS, Anaesthesia, Analgesia, EMOTIONS, ISOFLURANE, LAMBS, MANAGEMENT, MELOXICAM, PAIN ALLEVIATION, PIGS, Pain assessment, Pain behaviour, Piglet castration, RESPONSES, Social contagion, 413 Veterinary science",
author = "Jinhyeon Yun and Anna Ollila and Anna Valros and {Larenza Menzies}, {Maria Paula} and Mari Heinonen and Claudio Oliviero and Olli Peltoniemi",
year = "2019",
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doi = "10.1016/j.rvsc.2019.05.009",
language = "English",
volume = "125",
pages = "36--42",
journal = "Research in Veterinary Science",
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Behavioural alterations in piglets after surgical castration : Effects of analgesia and anaesthesia. / Yun, Jinhyeon; Ollila, Anna; Valros, Anna; Larenza Menzies, Maria Paula; Heinonen, Mari; Oliviero, Claudio; Peltoniemi, Olli.

I: Research in Veterinary Science, Vol. 125, 01.08.2019, s. 36-42.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

TY - JOUR

T1 - Behavioural alterations in piglets after surgical castration

T2 - Effects of analgesia and anaesthesia

AU - Yun, Jinhyeon

AU - Ollila, Anna

AU - Valros, Anna

AU - Larenza Menzies, Maria Paula

AU - Heinonen, Mari

AU - Oliviero, Claudio

AU - Peltoniemi, Olli

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The present study aimed to use behavioural measures to assess pain induced by surgical castration of piglets, and evaluate the efficacy of pain-relief medications. In total, 143 male piglets from 29 sows were used. The treatments included: 1) non-castration (NC; n = 28), 2) castration without medication (SC; n = 29), 3) castration with meloxicam injection 0.4 mg/kg i.m. (ME; n = 28), 4) castration with 0.5 ml of 2% lidocaine in each testicle (LA; n = 29), and 5) castration with general inhalation anaesthesia using isoflurane (1.5%) and meloxicam injection (GA; n = 29). Behaviour was monitored continuously for a ten minute period one hour prior to castration (−1 h), as well as immediately (0 h), one hour (1 h), and two hours (2 h) after castration. Behaviour was also monitored twice (08:00 and 20:00) during the following day. Compared to −1 h, castration induced changes in several behavioural measures in SC piglets at 0 h, suggesting that castration was painful. Furthermore, inactive standing or sitting, tail wagging and aggressive behaviour differed between SC and NC piglets at 0 h. ME and LA piglets spent less time standing or sitting inactively, and LA and GA piglets showed more tail wagging than SC piglets at 0 h (P < 0.05 for all). No other behavioural measures differed among the various groups of castrated piglets. In conclusion, the results indicate that surgical castration is indeed painful. However, the efficacy of various pain-relief protocols in piglets shortly after castration was not verified.

AB - The present study aimed to use behavioural measures to assess pain induced by surgical castration of piglets, and evaluate the efficacy of pain-relief medications. In total, 143 male piglets from 29 sows were used. The treatments included: 1) non-castration (NC; n = 28), 2) castration without medication (SC; n = 29), 3) castration with meloxicam injection 0.4 mg/kg i.m. (ME; n = 28), 4) castration with 0.5 ml of 2% lidocaine in each testicle (LA; n = 29), and 5) castration with general inhalation anaesthesia using isoflurane (1.5%) and meloxicam injection (GA; n = 29). Behaviour was monitored continuously for a ten minute period one hour prior to castration (−1 h), as well as immediately (0 h), one hour (1 h), and two hours (2 h) after castration. Behaviour was also monitored twice (08:00 and 20:00) during the following day. Compared to −1 h, castration induced changes in several behavioural measures in SC piglets at 0 h, suggesting that castration was painful. Furthermore, inactive standing or sitting, tail wagging and aggressive behaviour differed between SC and NC piglets at 0 h. ME and LA piglets spent less time standing or sitting inactively, and LA and GA piglets showed more tail wagging than SC piglets at 0 h (P < 0.05 for all). No other behavioural measures differed among the various groups of castrated piglets. In conclusion, the results indicate that surgical castration is indeed painful. However, the efficacy of various pain-relief protocols in piglets shortly after castration was not verified.

KW - ANIMALS

KW - Anaesthesia

KW - Analgesia

KW - EMOTIONS

KW - ISOFLURANE

KW - LAMBS

KW - MANAGEMENT

KW - MELOXICAM

KW - PAIN ALLEVIATION

KW - PIGS

KW - Pain assessment

KW - Pain behaviour

KW - Piglet castration

KW - RESPONSES

KW - Social contagion

KW - 413 Veterinary science

U2 - 10.1016/j.rvsc.2019.05.009

DO - 10.1016/j.rvsc.2019.05.009

M3 - Article

VL - 125

SP - 36

EP - 42

JO - Research in Veterinary Science

JF - Research in Veterinary Science

SN - 0034-5288

ER -