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Salonen M, Mikkola S, Niskanen JE, Hakanen E, Sulkama S, Puurunen J, Lohi H. Breed, age, and social environment are associated with personality traits in dogs. iScience 2023; 26:106691. [PMID: 37168553 PMCID: PMC10165416 DOI: 10.1016/j.isci.2023.106691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/14/2023] [Accepted: 04/13/2023] [Indexed: 05/13/2023] Open
Abstract
Personality in pets and other domesticated animals is important for their well-being and it can also influence human-animal relationships. Genetic and environmental factors influencing unwanted behavior in dogs are somewhat well known, but the factors influencing dog personality remain understudied. Here we examined environmental and demographic factors associated with seven broad personality traits in a survey of over 11,000 dogs. We utilized linear models and extensive model validation to examine the factors that have the most significant influences on personality and calculated effect sizes to assess the importance of these variables. Breed and age had the strongest associations with dog personality traits. Some environmental factors, especially puppyhood socialization, were also associated with personality. All factors had small effect sizes, highlighting that a lot of variation in personality remains unexplained. Our results indicate that personality traits are complex and strikingly similar in dogs, humans, and other nonhuman animals.
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Affiliation(s)
- Milla Salonen
- Department of Medical and Clinical Genetics, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Folkhälsan Research Center, Uusimaa, 00290 Helsinki, Finland
- Department of Biology, University of Turku, Turku, 20014 Southwest Finland, Finland
| | - Salla Mikkola
- Department of Medical and Clinical Genetics, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Folkhälsan Research Center, Uusimaa, 00290 Helsinki, Finland
| | - Julia E. Niskanen
- Department of Medical and Clinical Genetics, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Folkhälsan Research Center, Uusimaa, 00290 Helsinki, Finland
| | - Emma Hakanen
- Department of Medical and Clinical Genetics, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Folkhälsan Research Center, Uusimaa, 00290 Helsinki, Finland
| | - Sini Sulkama
- Department of Medical and Clinical Genetics, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Folkhälsan Research Center, Uusimaa, 00290 Helsinki, Finland
| | - Jenni Puurunen
- Department of Medical and Clinical Genetics, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Folkhälsan Research Center, Uusimaa, 00290 Helsinki, Finland
| | - Hannes Lohi
- Department of Medical and Clinical Genetics, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Uusimaa, 00014 Helsinki, Finland
- Folkhälsan Research Center, Uusimaa, 00290 Helsinki, Finland
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Flat-Faced or Non-Flat-Faced Cats? That Is the Question. Animals (Basel) 2023; 13:ani13020206. [PMID: 36670746 PMCID: PMC9854927 DOI: 10.3390/ani13020206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/27/2022] [Accepted: 12/31/2022] [Indexed: 01/09/2023] Open
Abstract
Persian and exotic shorthair cats are the most-popular brachycephalic breeds worldwide. This study aimed to explore differences in human-cat bonding, behavioural traits, perception of clinical breed-related problems, and the motivation for purchasing between brachycephalic cat owners (BCOs) and non-brachycephalic cat owners (NBCOs). Using an online questionnaire, human-cat bonding and cats' behavioural traits were explored using the CORS and Fe-BARQ scales, respectively. Breed-related problems and motivations for purchasing were explored only in BCOs. There were 278 BCOs and 250 NBCOs who completed the survey. Respiratory diseases resulted in being the main health problem of these breeds. Most BCOs were not aware of the incidence of these disorders in brachycephalic cats. Character and appearance were the main motivations for purchasing these breeds. Perceived emotional closeness (EC), cat-owner interaction (COI), and perceived cost (PC) mean scores were significantly higher in BCOs. Playfulness and affection-/attention-seeking scores were significantly higher in NBCOs. BCOs reported a significantly higher score for separation-related behaviours. The higher scores in separation-anxiety-related behaviours and in the EC and COI scales could be related mainly to the high level of care these breeds require. The motivation for acquiring brachycephalic breeds for good companionship seems in contrast with the lower scores obtained from BCOs for playfulness and affection-/attention-seeking.
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Mikkola S, Salonen M, Hakanen E, Lohi H. Fearfulness associates with problematic behaviors and poor socialization in cats. iScience 2022; 25:105265. [PMID: 36274942 PMCID: PMC9579021 DOI: 10.1016/j.isci.2022.105265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/11/2022] [Accepted: 09/29/2022] [Indexed: 11/29/2022] Open
Abstract
Problematic behavior is a remarkable welfare issue in cats (Felis catus), as it is one of the most common reasons for relinquishment. The probability of developing problematic behaviors is likely influenced by several variables, but these remain little studied. In this study, we examined the associations of fearfulness, aggression toward humans, and excessive grooming with nearly thirty variables in a survey dataset of over 3,200 cats. To identify the most important variables influencing these behaviors, we used generalized linear models. All behaviors were associated with each other suggesting comorbidity between problematic behaviors. Breed and several environmental variables were also associated with behaviors. Poor socialization with humans and a history of being a rescue cat were associated with higher fearfulness, indicating that the proper socialization of kittens is beneficial for avoiding fear-related problematic behaviors. Overall, our study highlights the complexity of three problematic behaviors in cats.
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Affiliation(s)
- Salla Mikkola
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - Milla Salonen
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - Emma Hakanen
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - Hannes Lohi
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
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Ferriani R, Mangiagalli G, Meazzi S, Pantoli M, Barbè F, Pastore C, Rossi S. Haematological and biochemical reference intervals in healthy Ragdoll cats. J Feline Med Surg 2022; 24:e98-e108. [PMID: 35471086 PMCID: PMC11104232 DOI: 10.1177/1098612x221089695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Breed-specific reference intervals (RIs) may be necessary to avoid misinterpretation of laboratory results. The main aim of this study was to establish haematobiochemical RIs for Ragdoll cats. METHODS Forty-two clinically healthy adult (0.8-10 years old) Ragdoll cats (Ragdoll population [RP]) and 60 non-Ragdoll cats as the control population (CP) were prospectively enrolled. Results of haematology, biochemistry and total thyroxine (TT4) were used to determine both Ragdoll-specific and general feline population RIs for each variable using Reference Value Advisor software according to the Clinical and Laboratory Standards Institute guidelines and the American Society of Veterinary Clinical Pathology guidelines. RESULTS For each analyte, RIs of the RP were calculated and compared with those obtained from the CP. Haematocrit, haemoglobin, mean cell volume, mean cell haemoglobin concentration, reticulocyte absolute count, platelet count and lymphocyte absolute number were statistically different from the CP. Biochemistry RIs revealed a statistical difference in creatinine kinase (CK), total protein, urea, creatinine, glucose, total calcium and iron. CONCLUSIONS AND RELEVANCE Haematobiochemical RIs of the general feline population must be used with caution in Ragdoll cats when it comes to iron and glucose concentrations, CK activity and absolute lymphocyte number. For these parameters, the use of breed-specific RIs is suggested. The docile and more relaxed nature of this breed may explain these differences and further investigations are necessary to better understand the results. Furthermore, investigations are needed to evaluate the possible benefits of breed-specific urea RIs.
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Affiliation(s)
- Riccardo Ferriani
- San Francesco Veterinary Hospital, Milan, Italy
- BiEsseA Veterinary Laboratory, Milan, Italy
| | | | - Sara Meazzi
- Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, Italy
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Zhang L, Needham KB, Juma S, Si X, Martin F. Feline communication strategies when presented with an unsolvable task: the attentional state of the person matters. Anim Cogn 2021; 24:1109-1119. [PMID: 33797625 PMCID: PMC8360888 DOI: 10.1007/s10071-021-01503-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 03/01/2021] [Accepted: 03/06/2021] [Indexed: 11/09/2022]
Abstract
Research on social cognitive ability in domestic cats is limited. The current study investigated social referencing in cats when exposed to first, a solvable, and then, an unsolvable scenario (i.e., reachable and unreachable treats) in the presence of either an attentive or an inattentive caregiver. Cats expressed more gaze alternation (P = 0.013), but less interaction with the caregiver (P = 0.048) and approached the treat container less frequently (P = 0.017) during the unsolvable test, compared to the solvable test. When in the presence of an attentive caregiver, cats initiated first gaze at the caregiver faster (P = 0.001); gazed at the caregiver for longer (P = 0.034); and approached the treat more frequently (P = 0.040), compared to when the caregiver was inattentive. Significant interaction was observed between test and caregiver's attentional state on the expression of sequential behavior, a type of showing behavior. Cats exhibited this behavior marginally more with attentive caregivers, compared to inattentive caregivers, but only during the unsolvable test. There was a decrease in sequential behavior during the unsolvable test, compared to solvable test, but this was only seen with inattentive caregivers (P = 0.018). Our results suggest that gaze alternation is a behavior reliably indicating social referencing in cats and that cats' social communication with humans is affected by the person's availability for visual interaction.
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Affiliation(s)
| | | | - Serena Juma
- Nestlé Purina Research, Saint-Louis, MO, USA
| | - Xuemei Si
- Nestlé Purina Research, Saint-Louis, MO, USA
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Mikkola S, Salonen M, Hakanen E, Sulkama S, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals (Basel) 2021; 11:ani11071991. [PMID: 34359119 PMCID: PMC8300181 DOI: 10.3390/ani11071991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022] Open
Abstract
Domestic cats are popular pets, and they have personalities, with stable behavior differences between individuals. Lately, feline behavior and personality have been studied with different approaches, for example, with owner-completed questionnaires. The majority of these studies, however, lack a sufficient validation and reliability assessment of the questionnaires used. We designed an online feline behavior and personality questionnaire to collect cat behavior data from their owners. Then, we ran a factor analysis to study the structure of personality and behavior in a dataset of over 4300 cats. For validation, we studied the internal consistency, test-retest reliability, inter-rater reliability, convergent validity and discriminant validity of this questionnaire and extracted factors. In addition, we briefly examined breed differences in the seven discovered factors: fearfulness, activity/playfulness, aggression toward humans, sociability toward humans, sociability toward cats, excessive grooming and litterbox issues. Most of the rank ordering of breeds within each trait paralleled what has been found in previous studies. The validity and reliability of the questionnaire and factors were good, strengthening owner-completed questionnaires as a method to collect behavioral data from pet animals. Breed differences suggest a genetic background for personality. However, these differences should be studied further with multidimensional models, including environmental and biological variables.
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Affiliation(s)
- Salla Mikkola
- Department of Veterinary Biosciences, University of Helsinki, 00014 Helsinki, Finland; (S.M.); (M.S.); (E.H.); (S.S.)
- Department of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, Finland
- Folkhälsan Research Center, 00014 Helsinki, Finland
| | - Milla Salonen
- Department of Veterinary Biosciences, University of Helsinki, 00014 Helsinki, Finland; (S.M.); (M.S.); (E.H.); (S.S.)
- Department of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, Finland
- Folkhälsan Research Center, 00014 Helsinki, Finland
| | - Emma Hakanen
- Department of Veterinary Biosciences, University of Helsinki, 00014 Helsinki, Finland; (S.M.); (M.S.); (E.H.); (S.S.)
- Department of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, Finland
- Folkhälsan Research Center, 00014 Helsinki, Finland
| | - Sini Sulkama
- Department of Veterinary Biosciences, University of Helsinki, 00014 Helsinki, Finland; (S.M.); (M.S.); (E.H.); (S.S.)
- Department of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, Finland
- Folkhälsan Research Center, 00014 Helsinki, Finland
| | - Hannes Lohi
- Department of Veterinary Biosciences, University of Helsinki, 00014 Helsinki, Finland; (S.M.); (M.S.); (E.H.); (S.S.)
- Department of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, Finland
- Folkhälsan Research Center, 00014 Helsinki, Finland
- Correspondence: ; Tel.: +35-829-412-5085
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Foreman-Worsley R, Finka LR, Ward SJ, Farnworth MJ. Indoors or Outdoors? An International Exploration of Owner Demographics and Decision Making Associated with Lifestyle of Pet Cats. Animals (Basel) 2021; 11:ani11020253. [PMID: 33498511 PMCID: PMC7909512 DOI: 10.3390/ani11020253] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Owners may consider many factors when deciding whether to provide an indoor-only or indoor-outdoor lifestyle for their cats. These include safety, mental and physical health, exposure to parasites or disease, and depredation of wildlife. This international study used a series of online surveys to explore the factors cat owners consider when deciding what lifestyle to provide for their cat, alongside investigating if owner and cat features are associated with greater odds of cats having indoor-only or indoor-outdoor lifestyles. Ten variables were found to be significant predictors of lifestyle. Owner features predicting a greater likelihood of cats being kept as indoor-only were being 26–35 years old, having multiple cats, living in city centres or urban areas, and living in the United States, Canada, Australia, or New Zealand. For cats, these features included being junior, having health issues, being pedigree, or having unknown pedigree status. Owner features predicting a greater likelihood of cats being indoor-outdoor were owners being 46–55+ years old or 56+ years old and having children (17 years old or under) living at home. For cats, features included being male and being mature or senior. Road traffic accidents were the major concern for owners of indoor-only cats in all regions surveyed. Owners who provided outdoor access predominantly indicated they did so for the mental wellbeing of their cat. These findings are important in understanding the considerations owners give to their cat’s lifestyle and identifying management trends and cat populations potentially at risk of compromised welfare due to unsuitable lifestyles. Abstract Outdoor access for owned domestic cats (Felis catus) is a divisive issue. Cat safety, mental and physical wellbeing, infectious diseases, and wildlife depredation are cited as factors influencing owners; however, the degree of consideration each factor receives has not been quantified. This study (i) analysed which demographic variables are associated with greater odds of cats having indoor or outdoor lifestyles, (ii) identified which factors owners consider when making a choice on lifestyle and any regional variations, and (iii) identified if owners consider the different lifestyle options available and recognise their associated benefits. A series of online surveys were used for data collection. Binary logistic regression models were used to generate odds ratios assessing if demographic variables were significantly associated with cat lifestyle. Quantitative analysis of factors considered when deciding on cat lifestyle was accompanied by a thematic analysis of rich-text open-ended responses, providing nuanced insight into the rationale and elucidating additional factors considered. Of the demographic variables tested, 10/12 were significantly associated with lifestyle. Variables with higher odds of indoor-only lifestyles were owners being 26–35 years old, multi-cat households, junior cats, pedigree cats or unknown pedigree status, cats with health issues, living in city centres or urban areas, or living in the United States, Canada, Australia, or New Zealand. Variables with higher odds of indoor-outdoor lifestyles were owners being 46–55 years old or 56+ years old, households with residents 17 years old or under, male cats, and cats being mature or senior. Road traffic concerns were the most cited reason for keeping indoor-only cats across all global regions. The second-most cited reason varied regionally. For Europe, it was protection from people. For the USA and Canada, the reason was protection from wildlife, and for Australia and New Zealand, to prevent hunting. Indoor-outdoor cat owners cited most frequently the benefits to their cat’s mental health. Over two-thirds of owners did not consider the alternative lifestyle for their cat. These data give insight into the priorities of cat owners with regards to feline wellbeing, feline safety, and wildlife depredation, helpful for individuals or organisations working with human behaviour change. They provide evidence that the numbers of indoor-only cats are likely to rise with increasing urbanisation. Finally, the data identify cat populations who may be at risk of compromised welfare due to unsuitable, or under-researched, lifestyles.
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Affiliation(s)
- Rachel Foreman-Worsley
- Brackenhurst Campus, School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottinghamshire NG25 0QF, UK; (L.R.F.); (S.J.W.); (M.J.F.)
- Correspondence:
| | - Lauren R. Finka
- Brackenhurst Campus, School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottinghamshire NG25 0QF, UK; (L.R.F.); (S.J.W.); (M.J.F.)
| | - Samantha J. Ward
- Brackenhurst Campus, School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottinghamshire NG25 0QF, UK; (L.R.F.); (S.J.W.); (M.J.F.)
| | - Mark J. Farnworth
- Brackenhurst Campus, School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottinghamshire NG25 0QF, UK; (L.R.F.); (S.J.W.); (M.J.F.)
- Jeanne Marchig International Centre for Animal Welfare Education, Easter Bush Campus, Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Midlothian EH25 9RG, UK
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Yamada R, Kuze-Arata S, Kiyokawa Y, Takeuchi Y. Prevalence of 17 feline behavioral problems and relevant factors of each behavior in Japan. J Vet Med Sci 2020; 82:272-278. [PMID: 31969521 PMCID: PMC7118490 DOI: 10.1292/jvms.19-0519] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Undesirable behaviors exhibited by cats are regarded as feline behavioral problems. Like
canine behavioral problems, feline behavioral problems are commonly reported by owners.
Thus, in order to advise cat owners appropriately, veterinarians, particularly general
veterinary practitioners, are encouraged to have sufficient knowledge of these problems.
However, in ordinary Japanese homes, only a small number of feline behavioral problems
have been investigated in terms of prevalence and relevant factors. Comprehensive survey
data may improve understanding of feline behavioral problems. In the present study, we
distributed an online survey including general information and questions about 17 feline
behaviors which can be problematic for owners, to investigate: (1) the prevalence of
feline behavioral problems, (2) the most common behavioral problems, and (3) relevant
factors for each behavior. We collected 1,376 valid responses. Among all cats, 75.7%
exhibited at least one behavioral problem. “Pica” and “Showing fear while on the
examination table” were the most frequently reported behavioral problems. To identify
factors related to the expression of each behavior, we conducted multiple logistic
regression analyses, with the presence of behaviors as objective variables and cats’
general information as explanatory variables. Age, sex, breed, number of cats in the
household, and type of residence were each associated with more than one behavior. The
present study revealed the prevalence of 17 feline behavioral problems in Japanese homes
and relevant factors of each behavior. These findings will help veterinarians understand
and address feline behavioral problems.
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Affiliation(s)
- Ryoko Yamada
- Laboratory of Veterinary Ethology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Sayaka Kuze-Arata
- Laboratory of Veterinary Ethology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.,Present address: Department of Animal Science and Biotechnology, Azabu University, Fuchinobe 1-17-71, Chuoh-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Yasushi Kiyokawa
- Laboratory of Veterinary Ethology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yukari Takeuchi
- Laboratory of Veterinary Ethology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
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Salonen M, Vapalahti K, Tiira K, Mäki-Tanila A, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep 2019; 9:7949. [PMID: 31138836 PMCID: PMC6538663 DOI: 10.1038/s41598-019-44324-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/15/2019] [Indexed: 01/23/2023] Open
Abstract
Cat domestication and selective breeding have resulted in tens of breeds with major morphological differences. These breeds may also show distinctive behaviour differences; which, however, have been poorly studied. To improve the understanding of feline behaviour, we examined whether behavioural differences exist among cat breeds and whether behaviour is heritable. For these aims, we utilized our extensive health and behaviour questionnaire directed to cat owners and collected a survey data of 5726 cats. Firstly, for studying breed differences, we utilized logistic regression models with multiple environmental factors and discovered behaviour differences in 19 breeds and breed groups in ten different behaviour traits. Secondly, the studied cat breeds grouped into four clusters, with the Turkish Van and Angora cats alone forming one of them. These findings indicate that cat breeds have diverged not only morphologically but also behaviourally. Thirdly, we estimated heritability in three breeds and obtained moderate heritability estimates in seven studied traits, varying from 0.4 to 0.53, as well as phenotypic and genetic correlations for several trait pairs. Our results show that it is possible to partition the observed variation in behaviour traits into genetic and environmental components, and that substantial genetic variation exists within breed populations.
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Affiliation(s)
- Milla Salonen
- Department of Veterinary Biosciences, University of Helsinki, 00014, Helsinki, Finland.,Medicum, Department of Medical Genetics, University of Helsinki, 00014, Helsinki, Finland.,The Folkhälsan Institute of Genetics, 00290, Helsinki, Finland
| | - Katariina Vapalahti
- Department of Veterinary Biosciences, University of Helsinki, 00014, Helsinki, Finland.,Medicum, Department of Medical Genetics, University of Helsinki, 00014, Helsinki, Finland.,The Folkhälsan Institute of Genetics, 00290, Helsinki, Finland
| | - Katriina Tiira
- Department of Veterinary Biosciences, University of Helsinki, 00014, Helsinki, Finland.,Medicum, Department of Medical Genetics, University of Helsinki, 00014, Helsinki, Finland.,The Folkhälsan Institute of Genetics, 00290, Helsinki, Finland
| | - Asko Mäki-Tanila
- Department of Agricultural Sciences, University of Helsinki, 00014, Helsinki, Finland
| | - Hannes Lohi
- Department of Veterinary Biosciences, University of Helsinki, 00014, Helsinki, Finland. .,Medicum, Department of Medical Genetics, University of Helsinki, 00014, Helsinki, Finland. .,The Folkhälsan Institute of Genetics, 00290, Helsinki, Finland.
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Arahori M, Chijiiwa H, Takagi S, Bucher B, Abe H, Inoue-Murayama M, Fujita K. Microsatellite Polymorphisms Adjacent to the Oxytocin Receptor Gene in Domestic Cats: Association with Personality? Front Psychol 2017; 8:2165. [PMID: 29326623 PMCID: PMC5741686 DOI: 10.3389/fpsyg.2017.02165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 11/28/2017] [Indexed: 01/06/2023] Open
Abstract
A growing number of studies have explored the oxytocin system in humans and non-human animals, and some have found important genetic polymorphisms in the oxytocin receptor gene (OXTR) associated with the bonding system, social behaviors, and personality in several species. Although single nucleotide polymorphisms in OXTR have been well-examined in various species, microsatellites (or short tandem repeats) adjacent to OXTR have rarely been studied, despite some suggestions that microsatellite polymorphisms near genes might play a role in genetic transcription and translation. In this study, we surveyed microsatellites in the upstream, intron, and downstream regions of OXTR in domestic cats (Felis catus). We succeeded in amplifying 5 out of 10 regions, and recognized these five regions as polymorphic. We compared allele frequencies in these five regions between mongrel cats in Japan (n = 100) and cats of 10 pure breeds (n = 40). There were significant differences in allele frequencies between the two populations in all microsatellite regions. Additionally, the owners of mongrel cats answered a comprehensive personality questionnaire, and factor analysis extracted four factors (Openness, Friendliness, Roughness, and Neuroticism). We examined the association between the microsatellite genotypes, age, sex, neutering status, and personality scores. Compared to their counterparts, younger cats tended to score higher on Openness, male cats scored higher on Friendliness, and female and neutered cats scored higher on Roughness. When we divided the sample into three groups depending on the length of alleles, we found a marginally significant association between Friendliness and MS3. Additionally, we found a sex-mediated effect of genotypes in MS4 on Friendliness, resulting in different effects on females and males. Our findings that mongrel cats had longer alleles in MS3 and MS4 than purebred cats, and that those cats tended to score higher on Friendliness, supported the previous findings. However, future studies such as comparison between purebred cats with apparently different origin or personality are required to determine the association of genetic variants in the OXTR with personality.
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Affiliation(s)
- Minori Arahori
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Hitomi Chijiiwa
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Saho Takagi
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Benoit Bucher
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Hideaki Abe
- Wildlife Research Center, Kyoto University, Kyoto, Japan
| | - Miho Inoue-Murayama
- Wildlife Research Center, Kyoto University, Kyoto, Japan.,Wildlife Genome Collaborative Research Group, National Institute for Environmental Studies, Tsukuba, Japan
| | - Kazuo Fujita
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, Japan
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11
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Risk factors for behavior problems in cats presented to an Australian companion animal behavior clinic. J Vet Behav 2016. [DOI: 10.1016/j.jveb.2016.06.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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