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The management of the thermal environment to which dogs are exposed should be included in strategies to improve their welfare. An online questionnaire was administered to 624 owners of Siberian Husky dogs residing in Brazil, with the objective of assessing their perceptions regarding their dogs' capacity to adapt to heat, and its association with the owners' routine care. Owners who believed that dogs are low-heat-tolerant animals were more likely to report heat response behaviors from their dogs. Overall, owners reported walk with their dogs during early morning, late afternoon and nighttime. They also reported solar radiation as the primary criteria for determining the time to walk with their dogs. However, owners who reported walking with their dogs at noon mentioned time availability as their primary criteria. In conclusion, owners perceive Siberian Husky dogs living in Brazil as being poorly adapted to heat, and this perception appeared to influence their positive attitudes towards protecting their dogs from heat stress by choosing to walk them during times with less solar exposure. However, the lack of time for owners to walk with their dogs during cooler periods can still be a risk factor in exposing the animals to extreme hot conditions.

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Reactive dairy cows are more susceptible to stress, and this may result in negative effects on milk yield and quality. The aims of this study were to investigate the relationships between temperament traits and concentration of milk cortisol and oxytocin, milk yield, milkability, and milk quality in Holstein-Gyr cows. Temperament traits were assessed in 76 Holstein-Gyr cows in the milking parlor (by scoring milking reactivity and recording the numbers of steps and kicks during pre-milking udder preparation and when fitting the milking cluster) and during handling in the corral (by measuring the time to enter in the squeeze chute, ET and flight speed, FS). Milk samples were collected for milk quality (% fat, % protein, % lactose, and somatic cell count, SCC), and milk cortisol and oxytocin. Milk yield, milking time, and average flow were also measured. The calmer cows during milking management (class 'low') produced milk with higher protein (p = 0.028) content and tendencies for lower fat (p = 0.056) and higher lactose (p = 0.055) contents. Regarding the hormones, the most reactive cows (class 'high') in the milking and handling corral produced milk with higher concentrations of cortisol (p<0.001) and oxytocin (p = 0.023). In addition, the temperament of the animals affected some of the productive measures evaluated. Cows with reactive temperament had lower milk flow and longer milking time than the intermediate ones and had higher fat and a tendency for lower protein percentage in milk compared to cows with intermediate temperaments. Calm and intermediate cows in the handling corral produced more milk and presented better milkability parameters, such as a shorter milking time and greater average milk flow. Our results suggest that the cows' behavioral reactivity can be related to the intensity of their response to stress during handling.

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In dairy systems with Zebu breeds, calves are not immediately separated from their dams after calving; consequently, maternal care and protective behavior are important, influencing both productive performance and stockpeople's safety. Our objectives were to: (1) investigate the effects of a training protocol involving pre-calving positive stimulation, delivered prior to calving, on the maternal care of primiparous Gyr cows; and (2) evaluate the effects of this training protocol on maternal protective behavior towards handlers during the first calf handling. Primiparous dairy Gyr cows (n = 37) were allocated into two groups: training (n = 16) and control (n = 21). Animal behaviors were recorded in three periods: post-calving, first calf handling, and post-handling. Maternal protective behavior during calf handling was assessed from measures of aggressiveness, attention, displacement, and agitation. Calf latency to stand up (p < 0.01) and sex (p < 0.01) differed between the training and control groups. The training group had less touching (p = 0.03), more time not interacting with the calf (p = 0.03), tended to be less protective (p = 0.056), and moved less (p < 0.01) during the first handling of their calves. In conclusion, the primiparous dairy Gyr cows subjected to pre-calving training protocol displayed less maternal care and displacement during the first handling of their calves and tended to be less protective.

RESUMO

Adaptative responses of cows to an automatic milking system (AMS) could depend on their temperament, i.e., cows with certain temperament profiles could be able to cope more successfully with the AMS. The relationships between dairy cows' temperament, behaviour, and productive parameters during the changeover from a conventional milking system (CMS) to an AMS were investigated. Thirty-three multiparous cows were classified as 'calm' or 'reactive' based on each of the temperament tests conducted: race time, flight speed (FS), and flight distance, at 5, 25, and 45 days in milk at CMS, then the cows were moved from the CMS to the AMS. During the first five milkings in AMS, the number of steps and kicks during each milking were recorded. The daily milk yield was automatically recorded. The number of steps did not vary by temperament classification, but the number of kicks per milking was greater for calm (0.45 ± 0.14) than for reactive cows (0.05 ± 0.03) when they were classified by FS (p < 0.01). During the first seven days in the AMS, reactive cows for the FS test produced more milk than calm cows (36.5 ± 1.8 vs. 33.2 ± 1.6 L/day; p = 0.05). In conclusion, behavioural and productive parameters were influenced by cows´ temperament during the milking system changeover since the calm cows kicked more and produced less than the reactive ones.

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Individual responses to physical restraint and temperament have been assessed in birds of several species; however, there is a paucity of research which investigates both aspects, especially in captive parrots. This lack of studies raises doubts about which temperament traits, if any, are evidenced during handling and if the intensity of responses to restraint is affected by behavioral training programs, a common practice used in ex situ conservation programs. To understand more about the subject, this study aimed to identify the main temperament dimensions of parrots and investigate their relationship with response to physical restraint for blood collection. A secondary aim was to evaluate whether parrots exhibited higher responsiveness to physical restraint after training to improve flight capacity and increase aversion to humans. The main dimensions identified were activity, neophilia, vigilance, and fearfulness. The more fearful parrots in temperament evaluations were more responsive to physical restraint, showing more vocalizations and struggle attempts than the less fearful ones. After training, the parrots showed higher responsiveness to physical restraint. We suggest that physical restraint for routine handling, such as blood collection, could be a feasible option for centers of rehabilitation to use to obtain data on individual behavioral differences in fear responses.

RESUMO

The maternal care of cows can influence both the milk production and the performance of their calves, making this a topic of important relevance for the production industry that uses zebu cattle. The aims of this study were to 1) investigate the effects of parity on the behaviors of Gyr cows during the peripartum period; 2) characterize the maternal defensiveness of primiparous and multiparous cows towards handlers during the first handling of their calves; and 3) evaluate the relationships between cows' behaviors at the peripartum period and maternal defensiveness. Thirty-one Gyr cows (primiparous and multiparous), from Empresa de Pesquisa Agropecuária de Minas Gerais (Brazil), were used. The animals were placed in a maternity paddock monitored by video cameras. The behaviors of the animals were collected in four periods: Pre-calving, Post-calving, First handling of calf and Post-handling. Primiparous cows presented more pain signs, reflected in arched spine (P = 0.05), and tended to move more (P = 0.07) than the multiparous in the Pre-calving period. Trends were observed for both Maternal Composite Score (P = 0.06) and Maternal Protective Behavior score (P = 0.06), indicating that both primiparous and multiparous were protective, but only multiparous cows were aggressive toward the caretakers on the first handling of their calves. The most protective cows spent more time eating during the prepartum period (P = 0.03), while the least attentive cows spent more time lying down (P = 0.02) in the prepartum period. The cows who nursed and stimulated their calves more were also calmer (P = 0.02) and more attentive (P = 0.01). In conclusion, the peripartum behaviors of Gyr cows were related to maternal care and maternal defensiveness. Multiparous cows tended to be more aggressive than primiparous cows at the time of the first handling of their calves.

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Interest in the well being of wild animals in their natural habitats is still lower than that of domesticated animals and captive wild animals. Urban development is one of the events that has the greatest impact on fauna, as it affects the survival and well being of wild species in many ways. This study aimed to record death by being run over of two Callithrix penicillata (black-tufted) marmosets in a fragmented environment by urbanization and to discuss how anthropic intervention modifies species behavior and influences their well being, and to suggest measures which can reduce the occurrence of incidents, thereby contributing to maintaining the fauna and their well being.

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The quality of cat care practices depends in part on the type of management applied, which either positively or negatively impacts cat welfare. This study investigated whether the type of cat management (indoor vs. outdoor) was related to other cat care practices adopted by cat owners, associated with the quality of human-cat relationships and cat welfare. An online survey was distributed via social networks. Descriptive statistics, categorical Principal Component Analysis, Fisher's Exact test and Chi-square test in contingency table were applied. A total of 16,302 cat owners returned the survey. Most Brazilian owners reported indoor management of their cats; this was related to owners living in apartments, more frequent use of cat care practices, and more interactions with their pets. Outdoor management was related to cats living in houses or farms, sleeping outdoors or around the neighborhood, and owners had fewer interaction with their pets. In conclusion, owners practicing indoor management seemed to be closer to their cats than owners reporting outdoor management. However, obesity and owner-reported behavioral problems were associated with indoor management.

RESUMO

Temperament can be defined as interindividual differences in behavior that are stable over time and in different contexts. The terms 'personality', 'coping styles', and 'behavioral syndromes' have also been used to describe these interindividual differences. In this review, the main aspects of cat temperament research are summarized and discussed, based on 43 original research papers published between 1986 and 2020. We aimed to present current advances in cat temperament research and identify potential gaps in knowledge, as well as opportunities for future research. Proximate mechanisms, such as genetic bases of temperament, ontogenesis and developmental factors, physiological mechanisms, and relationships with morphology, were reviewed. Methods traditionally used to assess the temperament of cats might be classified based on the duration of procedures (short- vs. long-term measures) and the nature of data recordings (coding vs. rating methods). The structure of cat temperament is frequently described using a set of behavioral dimensions, primarily based on interindividual variations in cats' responses toward humans and conspecifics (e.g., friendliness, sociability, boldness, and aggressiveness). Finally, cats' temperaments have implications for human-animal interactions and the one welfare concept. Temperament assessment can also contribute to practical aspects, for example, the adoption of shelter cats.

RESUMO

Identifying and preventing the occurrence of separation-related problems (SRP) in companion animals are relevant to animal welfare and the quality of human-pet interactions. The SRP are defined as a set of behaviors and physiological signs displayed by the animal when separated from its attachment person. In cats, SRP has been insufficiently studied. Thus, the objective of this study was to develop a questionnaire for cat owners which identifies behaviors that may indicate SRP, as well as relates the occurrence of SRP to the management practices applied in the sampled cats. The associations of SRP with cats' characteristics, as well as owner, environmental, and management traits were investigated. The questionnaire was developed based on the scientific literature about separation anxiety syndrome in dogs and a few papers in cats, and it was completed by 130 owners of 223 cats. Analysis of owners' answers was done through categorization and acquisition of relative frequencies of each response category, followed by Fisher's exact test, chi-square tests in contingency table and Multiple Correspondence Analysis. Among the sampled animals, 13.45% (30 / 223) met at least one of the behavioral criteria we used to define SRP. Destructive behavior was the most frequently reported behavior (66.67%, 20 / 30), followed by excessive vocalization (63.33%, 19 / 30), urination in inappropriate places (60.00%, 18 / 30), depression-apathy (53.33%, 16 / 30), aggressiveness (36.67%, 11 / 30) and agitation-anxiety (36.67%, 11 / 30) and, in lower frequency, defecation in inappropriate places (23.33%, 7 / 30). The occurrence of SRP was associated with the number of females living in the residence (P = 0.01), with not having access to toys (P = 0.04), and no other animal residing in the house (P = 0.04). Separation-related problems in domestic cats are difficult to identify due to the limited amount of knowledge regarding the issue. The questionnaire developed in this study supported identification of the main behaviors likely related to SRP in cats and could be used as a starting point for future research.

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The aim of this study was to evaluate the relationship between temperament in Nellore bulls with carcass and meat quality traits. In total, 1,400 bulls were studied, and temperament was assessed using two measurements: movement score (MOV) and flight speed test (FS). Both MOV and FS were measured at two time points, with background (MOVb and FSb) temperament measured at yearling age, ~550 d after birth, and the preslaughter (MOVps and FSps) temperament measured at the end of the feedlot period. The change of temperament resulting in an increase or decrease in reactivity was also used to measure meat quality. The traits used to define carcass and meat quality included carcass bruises (BRU), hot carcass weight (HCW, kg), ribeye area (REA, cm2), backfat thickness (BFT, cm), marbling score (MS), meat pH after thawing (pH), presence or absence of dark cutters, color parameters of luminosity (L*), redness (a*) and yellowness (b*), cooking loss (CL, %), and Warner-Bratzler shear force (WBSF, kg). A principal component (PC) analysis was initially applied to the carcass and meat quality traits, followed by logistic regression models and linear mixed models to evaluate the effects of temperament on carcass and meat quality. The risks of carcass bruises and dark cutters did not differ as a function of any temperament trait (P > 0.05). In turn, animals classified as high MOVb (reactive) had lower PC3 values (P = 0.05), CL (P = 0.02), and tended to have lower MS (P = 0.08). In addition, animals classified as high FSb (faster and reactive cattle) produced carcasses with smaller REA (P < 0.01), higher meat pH (P < 0.01), lower color gradients (L*, P = 0.04; b*, P < 0.01), and lower PC1 and PC4 scores (P < 0.01) when compared with the low FSb class. For preslaughter temperament, high MOVps was related to lower color a* (P = 0.04), whereas high FSps was related to lower HCW, MS, and PC2 (P < 0.01) than the calmer ones (low FSps). The reduction in MOV was related to more tender meat, and the reduction in FS to heavier carcass and brighter meat. We conclude that excitable temperament in Nellore cattle may have negative effects in some of the carcass and meat quality attributes assessed, mainly those related to muscle deposition on carcass and color gradients. Measurement of temperament before the cattle entered the feedlot was a better predictor of carcass and meat quality traits, compared with temperament assessment at the end of the feeding period.

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This study evaluated lairage time effects on carcass and meat quality traits of Hereford steers. Thirty Hereford steers fed on pasture were assigned to two treatments according to lairage time: 3 h (n = 15) and 12 h (n = 15). Individual temperament was assessed using crush score and flight speed. pH decline, glycogen content, meat color, and shear force were measured. pH was not different between treatments at any time point, showing a normal decline rate. Meat color and shear force did not differ between treatments, but muscle glycogen was lower in treatment with 3 h, not enough to affect quality but suggesting a higher level of stress in 3 h lairage time. Temperament did not have any impact on carcass and meat quality traits. No differences were found in pH, color, and tenderness between treatments, but the lower muscle glycogen concentrations for the shorter lairage suggest a higher risk regarding meat quality.(AU)

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O objetivo deste trabalho foi avaliar a percepção dos ordenhadores em relação às suas interações com as vacas leiteiras. A interação humano-animal foi classificada segundo a adoção de ações positivas (interações táteis agradáveis, escovação do pelo e presença enquanto os animais se alimentam) e negativas durante o manejo (gritos, ruído intenso durante a ordenha, batidas, uso de objetos impróprios para condução das vacas, como ferrões e paus). Foram entrevistados 55 ordenhadores, de 37 propriedades rurais, por meio de um questionário compreendendo 17 perguntas. A grande maioria (90,9%) dos ordenhadores demonstrou ter noção de que praticas negativas direcionadas às vacas no momento da ordenha podem aumentar o leite residual. No entanto, a maioria (mais de 80%) também declarou praticar algum tipo de ação negativa e, pelo menos, 30% deles declarou utilizar estas praticas mesmo sabendo que podem ser prejudiciais aos animais. O nível geral de saber dos ordenhadores variou em função do sistema de produção (P = 0,051), da raça do animal (P = 0,005), do tipo de ordenha em que trabalhavam (P = 0,005) e do sexo do ordenhador (P = 0,048). De modo geral, a percepção dos ordenhadores sobre suas ações durante o manejo foi considerada inadequada, refletindo um nível de conhecimento insuficiente para que apliquem boas praticas de manejo e de bem-estar das vacas leiteiras. Tais resultados alertam para a necessidade de treinamento desta importante categoria de trabalhadores com relação ao comportamento e boas praticas de manejo de vacas leiteiras.

The aim of this study was to evaluate the perception of stockpeople about their interactions with dairy cows. The human-animal interactions were classified according to the adoption of positive (gentle tactile interaction, brushing and presence while animals fed) and negative actions during handling (shouting, loud noise during milking sessions, beats, and improper use of objects to drive the cows). Interviews were applied to 55 stockpearsons, who worked at 37 dairy farms, using a questionnaire composedof 17 questions. The vast majority of the stockpearsons (90.9%) have shown a notion that negative practices toward the cows during milking should increase residual milk. However, most of them (over 80%) also reported practicing some type of negative action, and at least 30% declared to use these practices even knowing their harmful effects to animals. The general level of knowledge of stockpearsons varied according to the production system (P = 0.051), animal breed (P =0.005), type of milking system of the farm (P = 0.005) and their sex (P = 0.048). In general, the perception of stockpearsons about their actions during handling was considered inadequate, reflecting a low level of understanding to perform good practices of handling and animal welfare. These results emphasize the need of professional training for this important category of worker in relation to behavior and good handling practices for dairy cows.

Assuntos

RESUMO

O objetivo deste trabalho foi avaliar a percepção dos ordenhadores em relação às suas interações com as vacas leiteiras. A interação humano-animal foi classificada segundo a adoção de ações positivas (interações táteis agradáveis, escovação do pelo e presença enquanto os animais se alimentam) e negativas durante o manejo (gritos, ruído intenso durante a ordenha, batidas, uso de objetos impróprios para condução das vacas, como ferrões e paus). Foram entrevistados 55 ordenhadores, de 37 propriedades rurais, por meio de um questionário compreendendo 17 perguntas. A grande maioria (90,9%) dos ordenhadores demonstrou ter noção de que praticas negativas direcionadas às vacas no momento da ordenha podem aumentar o leite residual. No entanto, a maioria (mais de 80%) também declarou praticar algum tipo de ação negativa e, pelo menos, 30% deles declarou utilizar estas praticas mesmo sabendo que podem ser prejudiciais aos animais. O nível geral de saber dos ordenhadores variou em função do sistema de produção (P = 0,051), da raça do animal (P = 0,005), do tipo de ordenha em que trabalhavam (P = 0,005) e do sexo do ordenhador (P = 0,048). De modo geral, a percepção dos ordenhadores sobre suas ações durante o manejo foi considerada inadequada, refletindo um nível de conhecimento insuficiente para que apliquem boas praticas de manejo e de bem-estar das vacas leiteiras. Tais resultados alertam para a necessidade de treinamento desta importante categoria de trabalhadores com relação ao comportamento e boas praticas de manejo de vacas leiteiras.(AU)

The aim of this study was to evaluate the perception of stockpeople about their interactions with dairy cows. The human-animal interactions were classified according to the adoption of positive (gentle tactile interaction, brushing and presence while animals fed) and negative actions during handling (shouting, loud noise during milking sessions, beats, and improper use of objects to drive the cows). Interviews were applied to 55 stockpearsons, who worked at 37 dairy farms, using a questionnaire composedof 17 questions. The vast majority of the stockpearsons (90.9%) have shown a notion that negative practices toward the cows during milking should increase residual milk. However, most of them (over 80%) also reported practicing some type of negative action, and at least 30% declared to use these practices even knowing their harmful effects to animals. The general level of knowledge of stockpearsons varied according to the production system (P = 0.051), animal breed (P =0.005), type of milking system of the farm (P = 0.005) and their sex (P = 0.048). In general, the perception of stockpearsons about their actions during handling was considered inadequate, reflecting a low level of understanding to perform good practices of handling and animal welfare. These results emphasize the need of professional training for this important category of worker in relation to behavior and good handling practices for dairy cows.(AU)

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The objectives of this study were to investigate the associations among direct and indirect indicators of land use by cattle and to understand the role of some environmental factors on the definition of these indicators. The study was carried out in two areas, Nature Reserve (63.6 ha) and Private Area (30.4 ha), with 53 Hereford animals in each area. Daytime observations of animals location were used as direct indicator of land use; while cattle track and dung pat distributions throughout the areas were used as indirect indicators. Environmental characteristics recorded were: terrain slope, prevalence of woody vegetation cover (forests, isolated tress and open grasslands), as well as the position of fences, water sources and salt blocks. Spatial correlations among the three indicators of land use were low (r 0.30). The environmental factors had lower predictive power of animals sightings distribution, followed by cattle tracks, and the highest predictive power occurred for dung pat distribution. We concluded that each one of the methods evaluated in this study addresses a different aspect of land use by cattle. The environmental factors assessed were useful to predict the dung pat distribution, but less valuable to predict the cattle tracks and animals sightings distributions. 

Este estudo foi realizado para investigar as associações entre indicadores diretos e indiretos do uso do espaço por bovinos, além de avaliar o papel de algumas características ambientais na definição desses indicadores. O estudo foi conduzido em duas áreas, denominadas Nature Reserve (63,6 ha) e Private Area (30,4 ha), com 53 bovinos da raça Hereford em cada área. Observações comportamentais foram utilizadas como indicador direto do uso do espaço, enquanto as distribuições de trilhas feitas pelo gado e de placas de fezes foram utilizadas como indicadores indiretos. As características ambientais avaliadas foram: declividade, tipo de cobertura vegetal (florestas, pastagem com árvores isoladas, áreas abertas de pastagem), posição de cercas, fontes de água e sal. As correlações espaciais entre os três indicadores de uso do espaço foram baixas (r < 0,30). As características do ambiente tiveram baixo poder de predição da distribuição espacial dos animais, seguido pela distribuição das trilhas e maior para as placas de fezes. Concluímos que cada um dos métodos avaliados aborda um aspecto diferente do uso do espaço pelos bovinos. As características ambientais avaliadas foram úteis para predizer apenas a distribuição das placas de fezes, sendo menos úteis no caso das trilhas e observações diretas dos animais.(AU)

Assuntos

RESUMO

The objectives of this study were to investigate the associations among direct and indirect indicators of land use by cattle and to understand the role of some environmental factors on the definition of these indicators. The study was carried out in two areas, Nature Reserve (63.6 ha) and Private Area (30.4 ha), with 53 Hereford animals in each area. Daytime observations of animals location were used as direct indicator of land use; while cattle track and dung pat distributions throughout the areas were used as indirect indicators. Environmental characteristics recorded were: terrain slope, prevalence of woody vegetation cover (forests, isolated tress and open grasslands), as well as the position of fences, water sources and salt blocks. Spatial correlations among the three indicators of land use were low (r 0.30). The environmental factors had lower predictive power of animals sightings distribution, followed by cattle tracks, and the highest predictive power occurred for dung pat distribution. We concluded that each one of the methods evaluated in this study addresses a different aspect of land use by cattle. The environmental factors assessed were useful to predict the dung pat distribution, but less valuable to predict the cattle tracks and animals sightings distributions.

Este estudo foi realizado para investigar as associações entre indicadores diretos e indiretos do uso do espaço por bovinos, além de avaliar o papel de algumas características ambientais na definição desses indicadores. O estudo foi conduzido em duas áreas, denominadas Nature Reserve (63,6 ha) e Private Area (30,4 ha), com 53 bovinos da raça Hereford em cada área. Observações comportamentais foram utilizadas como indicador direto do uso do espaço, enquanto as distribuições de trilhas feitas pelo gado e de placas de fezes foram utilizadas como indicadores indiretos. As características ambientais avaliadas foram: declividade, tipo de cobertura vegetal (florestas, pastagem com árvores isoladas, áreas abertas de pastagem), posição de cercas, fontes de água e sal. As correlações espaciais entre os três indicadores de uso do espaço foram baixas (r < 0,30). As características do ambiente tiveram baixo poder de predição da distribuição espacial dos animais, seguido pela distribuição das trilhas e maior para as placas de fezes. Concluímos que cada um dos métodos avaliados aborda um aspecto diferente do uso do espaço pelos bovinos. As características ambientais avaliadas foram úteis para predizer apenas a distribuição das placas de fezes, sendo menos úteis no caso das trilhas e observações diretas dos animais.

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Separation anxiety syndrome (SAS) is a set of physiological and behavioral responses, displayed isolated or in association, by a given animal when in the absence of an attachment figure. Separation anxiety is a behavioral problem commonly reported in companion animals, with serious impacts on the quality of human-animal interaction and animal welfare, especially in dogs. In its turn, for cats, this subject has been timidly addressed, despite of its occurrence in cats had already been reported in the scientific literature. The behavioral signs related to SAS are: anomalous reactivity, excessive vocalization, elimination of feces and urine in inappropriate places, destructive behaviors and excessive self-grooming. The knowledge about the symptoms related to this disorder, as well as the factors that predispose the animals to develop SAS, is of fundamental importance. This article presents a review on the main risk factors already related to the occurrence of separation anxiety in domestic dogs and cats, among them, some characteristics inherent to animals, to the owners and environmental features. The main gaps in the current knowledge about SAS will be identified in order to stimulate further research on this topic, which may contribute to the improvement of the welfare of both, animals and people who own them.

Entende-se por síndrome de ansiedade por separação (SAS) o conjunto de respostas fisiológicas e comportamentais, exibidas isoladamente ou em associação, por um dado animal quando na ausência de uma figura de apego. A SAS tornou-se um problema comportamental comumente reportado nos animais de companhia, sendo descritos sérios impactos sobre a qualidade da interação humano-animal e o bem-estar animal, em especial, dos cães. Por sua vez, para os gatos, tal temática tem sido abordada ainda de forma muito tímida, embora existam relatos de sua ocorrência na literatura científica. Os sinais comportamentais frequentemente relacionados à SAS são: reatividade anômala, vocalização excessiva, eliminação de fezes e / ou de urina em locais inadequados, comportamentos destrutivos e autolimpeza excessiva. A identificação e compreensão dos sintomas relacionados a este distúrbio, bem como, dos fatores que predispõe os animais a desenvolverem SAS, são de suma importância. Neste artigo será apresentada uma revisão sobre os principais fatores de risco já relacionados com a ocorrência de ansiedade por separação em cães e gatos domésticos, dentre eles, algumas características do próprio animal, do tutor e do ambiente de criação. Serão apontadas lacunas no conhecimento atual sobre a SAS, a fim de estimular mais pesquisas sobre este tema, que possam contribuir para a melhoraria do bem-estar, tanto dos animais, quanto das pessoas que com eles convivem.

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Separation anxiety syndrome (SAS) is a set of physiological and behavioral responses, displayed isolated or in association, by a given animal when in the absence of an attachment figure. Separation anxiety is a behavioral problem commonly reported in companion animals, with serious impacts on the quality of human-animal interaction and animal welfare, especially in dogs. In its turn, for cats, this subject has been timidly addressed, despite of its occurrence in cats had already been reported in the scientific literature. The behavioral signs related to SAS are: anomalous reactivity, excessive vocalization, elimination of feces and urine in inappropriate places, destructive behaviors and excessive self-grooming. The knowledge about the symptoms related to this disorder, as well as the factors that predispose the animals to develop SAS, is of fundamental importance. This article presents a review on the main risk factors already related to the occurrence of separation anxiety in domestic dogs and cats, among them, some characteristics inherent to animals, to the owners and environmental features. The main gaps in the current knowledge about SAS will be identified in order to stimulate further research on this topic, which may contribute to the improvement of the welfare of both, animals and people who own them.(AU)

Entende-se por síndrome de ansiedade por separação (SAS) o conjunto de respostas fisiológicas e comportamentais, exibidas isoladamente ou em associação, por um dado animal quando na ausência de uma figura de apego. A SAS tornou-se um problema comportamental comumente reportado nos animais de companhia, sendo descritos sérios impactos sobre a qualidade da interação humano-animal e o bem-estar animal, em especial, dos cães. Por sua vez, para os gatos, tal temática tem sido abordada ainda de forma muito tímida, embora existam relatos de sua ocorrência na literatura científica. Os sinais comportamentais frequentemente relacionados à SAS são: reatividade anômala, vocalização excessiva, eliminação de fezes e / ou de urina em locais inadequados, comportamentos destrutivos e autolimpeza excessiva. A identificação e compreensão dos sintomas relacionados a este distúrbio, bem como, dos fatores que predispõe os animais a desenvolverem SAS, são de suma importância. Neste artigo será apresentada uma revisão sobre os principais fatores de risco já relacionados com a ocorrência de ansiedade por separação em cães e gatos domésticos, dentre eles, algumas características do próprio animal, do tutor e do ambiente de criação. Serão apontadas lacunas no conhecimento atual sobre a SAS, a fim de estimular mais pesquisas sobre este tema, que possam contribuir para a melhoraria do bem-estar, tanto dos animais, quanto das pessoas que com eles convivem.(AU)

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RESUMO

The aim of this study was to determine whether applying good practices of handling during the pre-weaning period have long-term effects on behavioral and physiological indicators, health status, and average daily gain (ADG) of crossbred Bos taurus × Bos indicus heifer calves. During the pre-weaning period, 98 crossbred of Holstein × Gir heifer calves were allotted into three treatments: (1) good practices of handling + brushing (GPB; n = 25), (2) good practices of handling (GP; n = 25), and (3) control (n = 48). Every 2 months, four evaluation periods (EV1 to EV4) were conducted to record data. Behavioral indicators comprised time to drive (TD), flight speed (FS), flight distance (FD), and composite reactivity score (CRS). Physiological indicators of acute stress during handling comprised respiratory and heart rates. Health status comprised data regarding occurrence of most common diseases (i.e., pneumonia and anaplasmosis). Collected data were analyzed by using a linear mixed model for repeated measures, Tukey's test, and chi-squared procedures. Treatment influenced (P < 0.05) TD, FS, and FD but not CRS (P = 0.78). From EV1 to EV3, the control calves had the lowest TD. The GPB group had lower FS than the control but did not differ from GP. The GPB group had lower FD means than the other two groups in EV2, EV3, and EV4. No differences (P > 0.05) due to treatment were observed on heart and respiratory rates, ADG, or occurrence of pneumonia and anaplasmosis. It was concluded that adoption of good practices of handling during pre-weaning period may lead to long-term positive effects.

Assuntos

RESUMO

Todas as pessoasque, em algum momento da vida, tiveram estreito contato com animais são capazesde caracterizálos de acordo com aspectos do comportamento, utilizando adjetivos como ‘brincalhão’, ‘tímido’, ‘medroso’, ‘nervoso’, ‘agressivo’, ‘carente’, ‘amigável’,‘agitado’ na tentativa deexpressar a individualidade de seus animais. Mas, como a ciência vem abordando esse tema? Quais as origens destas diferenças?O conceito de personalidade é legítimo para quais animais? E, principalmente, quais são suas implicações na vida dos animais? Ao longo desse texto buscaremos responder a esses questionamentos.

Assuntos