Moody Mares—Is Ovariectomy a Solution?

Unwanted behaviour in mares is a commonly presenting problem to the veterinarian. This behaviour may range from the mare being uncooperative or aggressive when handled on the ground, kicking, bucking or rearing when ridden or being aggressive towards other horses. This purpose of the study was to ev...

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Main Authors: Daniel Taasti Melgaard, Trine Stokbro Korsgaard, Martin Soendergaard Thoefner, Morten Roenn Petersen, Hanne Gervi Pedersen
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/10/7/1210
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author Daniel Taasti Melgaard
Trine Stokbro Korsgaard
Martin Soendergaard Thoefner
Morten Roenn Petersen
Hanne Gervi Pedersen
author_facet Daniel Taasti Melgaard
Trine Stokbro Korsgaard
Martin Soendergaard Thoefner
Morten Roenn Petersen
Hanne Gervi Pedersen
author_sort Daniel Taasti Melgaard
collection DOAJ
description Unwanted behaviour in mares is a commonly presenting problem to the veterinarian. This behaviour may range from the mare being uncooperative or aggressive when handled on the ground, kicking, bucking or rearing when ridden or being aggressive towards other horses. This purpose of the study was to evaluate whether bilateral ovariectomy in mares with unwanted behaviour improved the mare’s behaviour and/or rideability from the owner’s perspective. The mares were grouped and compared statistically based on their histological classification as having either “normal” or neoplastic ovaries. This study is a retrospective case series report of twenty-eight ovariectomized mares. A semi-quantitative value (1–10) pre- and post-ovariectomy for A) behaviour on ground/in stable and B) rideability was given, based on the owner’s observations. The horses were grouped based on their histopathologic diagnosis as “Normal ovaries” or “Neoplasia”. Following ovariectomy, rideability improved, with a score of ≥5 in 80% (8/10) of mares with normal ovaries and in 57% (8/14) of mares with ovarian neoplasm. A behavioural improvement of ≥5 was observed in 40% (4/10) of mares with normal ovaries, and in 43% (6/14) of mares with ovarian neoplasm. A significant difference was observed between the semi-quantitative value pre- and post-ovariectomy in both groups. No difference was observed in change in behaviour and rideability score between the group with normal ovaries and neoplastic ovaries. Mares with unwanted behaviour not obviously related to the oestrus cycle and to painful conditions may benefit from ovariectomy to alter their behaviour and rideability.
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spelling doaj.art-bc80e8fe51484bff9fd8ac7a66ff57be2023-11-20T06:56:22ZengMDPI AGAnimals2076-26152020-07-01107121010.3390/ani10071210Moody Mares—Is Ovariectomy a Solution?Daniel Taasti Melgaard0Trine Stokbro Korsgaard1Martin Soendergaard Thoefner2Morten Roenn Petersen3Hanne Gervi Pedersen4Hoersholm Equine Clinic, Kongevejen 124D, 3480 Fredensborg, DenmarkDyrDoktor, Sjaellandsgade 20, 6400 Soenderborg, DenmarkHoersholm Equine Clinic, Kongevejen 124D, 3480 Fredensborg, DenmarkSection for Veterinary Reproduction and Obstetrics, Department of Veterinary Clinical Sciences, University of Copenhagen, Højbakkegård Allé 5A, 2630 Taastrup, DenmarkSection for Veterinary Reproduction and Obstetrics, Department of Veterinary Clinical Sciences, University of Copenhagen, Højbakkegård Allé 5A, 2630 Taastrup, DenmarkUnwanted behaviour in mares is a commonly presenting problem to the veterinarian. This behaviour may range from the mare being uncooperative or aggressive when handled on the ground, kicking, bucking or rearing when ridden or being aggressive towards other horses. This purpose of the study was to evaluate whether bilateral ovariectomy in mares with unwanted behaviour improved the mare’s behaviour and/or rideability from the owner’s perspective. The mares were grouped and compared statistically based on their histological classification as having either “normal” or neoplastic ovaries. This study is a retrospective case series report of twenty-eight ovariectomized mares. A semi-quantitative value (1–10) pre- and post-ovariectomy for A) behaviour on ground/in stable and B) rideability was given, based on the owner’s observations. The horses were grouped based on their histopathologic diagnosis as “Normal ovaries” or “Neoplasia”. Following ovariectomy, rideability improved, with a score of ≥5 in 80% (8/10) of mares with normal ovaries and in 57% (8/14) of mares with ovarian neoplasm. A behavioural improvement of ≥5 was observed in 40% (4/10) of mares with normal ovaries, and in 43% (6/14) of mares with ovarian neoplasm. A significant difference was observed between the semi-quantitative value pre- and post-ovariectomy in both groups. No difference was observed in change in behaviour and rideability score between the group with normal ovaries and neoplastic ovaries. Mares with unwanted behaviour not obviously related to the oestrus cycle and to painful conditions may benefit from ovariectomy to alter their behaviour and rideability.https://www.mdpi.com/2076-2615/10/7/1210moody maresovariectomyovarian neoplasiatumourunwanted behaviour
spellingShingle Daniel Taasti Melgaard
Trine Stokbro Korsgaard
Martin Soendergaard Thoefner
Morten Roenn Petersen
Hanne Gervi Pedersen
Moody Mares—Is Ovariectomy a Solution?
Animals
moody mares
ovariectomy
ovarian neoplasia
tumour
unwanted behaviour
title Moody Mares—Is Ovariectomy a Solution?
title_full Moody Mares—Is Ovariectomy a Solution?
title_fullStr Moody Mares—Is Ovariectomy a Solution?
title_full_unstemmed Moody Mares—Is Ovariectomy a Solution?
title_short Moody Mares—Is Ovariectomy a Solution?
title_sort moody mares is ovariectomy a solution
topic moody mares
ovariectomy
ovarian neoplasia
tumour
unwanted behaviour
url https://www.mdpi.com/2076-2615/10/7/1210
work_keys_str_mv AT danieltaastimelgaard moodymaresisovariectomyasolution
AT trinestokbrokorsgaard moodymaresisovariectomyasolution
AT martinsoendergaardthoefner moodymaresisovariectomyasolution
AT mortenroennpetersen moodymaresisovariectomyasolution
AT hannegervipedersen moodymaresisovariectomyasolution