The effects of intrinsic enrichment on captive felids.

Environmental enrichment is a well-known technique, which has been used to enhance the welfare of captive animals. The aim of this study is to investigate how three different forms of intrinsic enrichment, namely, a hay ball without scent, a hay ball with catnip, and a hay ball with cinnamon, influenced the behavior of six cheetah and two Sumatran tigers at Fota Wildlife Park, Ireland. Enrichment-directed behaviors, as well as pacing, locomotion, inactive, and exploratory behaviors were investigated. The results indicated that the three forms of enrichment had similar effects, in terms of enrichment-directed behavior, with cinnamon resulting in the highest levels of enrichment-directed behaviors. The cinnamon treatment resulted in a significant decrease in pacing behavior when compared with baseline observations. No evidence of habituation (i.e., a significant reduction in enrichment-directed behaviors) was observed for any of the three enrichments. This means that these low cost, easy to apply, practical forms of enrichment could be frequently applied for these species as part of an enrichment regime.

The Use of Refuges by Communally Housed Cats.

The increase of domestic animals kept in shelters highlights the need to ensure animal welfare. Environmental enrichment can improve animal welfare in many ways, such as encouraging captive animals to use all the space available to them. The effects of physical environmental enrichment on the spatial distribution and behavioral repertoire of 35 neutered domestic cats housed communally were analyzed. The provision of boxes in the environment increases the use of available space by the cats. We suggest this improves the cats' welfare while in communally-housed rescue shelters. The frequencies of active and especially inactive behaviors also increased in the enriched condition. In a test with vertical environmental enrichment, the animals showed an increased length of stay in refuges located at a height of 0.5 m compared to those on the ground (0.0 m). However, the entry frequency was higher in refuges at 0.0 m. Both horizontal and vertical environmental enrichment increased the use of available space, demonstrating that box refuges as enrichment are effective in providing a refuge when at a height, or a place to explore at ground level. We suggest it enhances the welfare of cats in communally housed shelters. This information adds to the body of evidence relating to cat enrichment and can be useful in designing cat housing in veterinary clinics, research laboratories, shelters and domestic homes.

The influence of handling and isolation postweaning on open field, exploratory and maternal behavior of female rats.

Fifty-three black-hooded female rats, raised from the 28th to the 128th day of life under four types of environmental conditions differing in social and handling factors, had their behavioral performance evaluated in eight tests involving exploration of a complex environment (EX) in two open field (OF) tests and in three pup-retrieving tests. These tests were held before, during and after the period of lactation of their first brood. Females differed from (previously studied) males in that environmental raising conditions had a much smaller influence, especially during the lactation period. Nevertheless, females raised in isolation tended to remain for longer times inside a protected den in the exploration tests and to have greater locomotion in the open field. Previous handling allowed a greater exploration during the first contact with the novel complex environment as well as greater activity in the open field. The presence of small pups drastically reduced the exploratory motivation, but the presence of pups more than 20 days old tended to increase it. Maternal behavior evaluated in the pup retrieval test and in the test of time for the female to leave the nest side of the double box system was markedly refractory to previous environmental influences.

Time budget and activity patterns of oncilla cats (Leopardus tigrinus) in captivity.

Researchers have reported on the diet of Leopardus tigrinus and ecological aspects, but studies of behavior are scarce. The aims of this study were to describe the time budget and activity patterns of 10 captive Leopardus tigrinus individuals. The group had an activity budget of 66% resting, 20.66% moving, 6.08% vigilant, 3.12% feeding, and 4.14% other activities during 720 hr of observations. The activity budgets of the males and females did not differ significantly; however, males ate more than did females. The nonhuman animals spent more time resting during the day than during the night. Moving, socializing, maintenance, and vigilance showed statistically higher mean values at night. Group analysis of the temporal pattern of behavior showed bimodal peaks. Activity levels were high from 5 a.m. to 6 a.m. and decreased through the day only to peak again at 7 p.m. Stereotypic pacing peaked at dawn and at dusk. Patterns of vigilance, feeding, and maintenance were also determined for the group during a 24-hr period. These results may be useful for the development of management plans and effective conservation strategies for captive cats.

Agonistic behavior and environmental enrichment of cats communally housed in a shelter.

OBJECTIVE: To evaluate the presence of a dominance rank in a group of cats and the relation between agonistic behavior and the use of resources, including environmental enrichment, in these cats. DESIGN: Observational analytic study. ANIMALS: 27 neutered cats in a shelter in Sao Paulo, Brazil. PROCEDURES: The cats were video recorded for 4 consecutive days to obtain baseline data. Subsequently, a puzzle feeder was added as an enrichment device every other day over 8 days, for a total of 4 days with enrichment. Cats were also video recorded on these days. All pretreatment and posttreatment agonistic behaviors and interactions with the puzzle feeder were recorded by reviewing the videotapes. RESULTS: 143 agonistic encounters were recorded, of which 44 were related to resources and 99 were not. There were insufficient agonistic interactions to determine a dominance rank. Presence or absence of the puzzle feeder did not affect the rate of aggression. There was no significant effect of weight, sex, or coat color on the rate of aggression, and aggressive behavior did not correlate with time spent with the puzzle feeder. Twenty-three of the 27 cats interacted with the puzzle feeder. CONCLUSIONS AND CLINICAL RELEVANCE: In a stable group of communally housed cats, environmental enrichment did not cause increased aggression as a result of competition for the source of enrichment. Because environmental enrichment increases the opportunity to perform exploratory behaviors, it may improve the welfare of groups of cats maintained long-term in shelters, sanctuaries, or multicat households.

Influence of cinnamon and catnip on the stereotypical pacing of oncilla cats (Leopardus tigrinus) in captivity.

Nonhuman animals in captivity can experience environmental privation that results in their exhibiting abnormal behaviors. Environmental enrichment techniques can help improve their welfare. This study investigated the behavior of 8 zoo-housed oncilla cats (Leopardus tigrinus) in response to 2 odors (catnip and cinnamon) introduced individually into the animals' enclosures for 3 consecutive days. Proportion of scans spent engaging in stereotypical pacing were compared before, during, and after treatments. The addition of cinnamon reduced the proportion of pacing during and after enrichment (Wilcoxon: Z = 3.16, p < .001; Z = 3.16, p < .001, respectively), indicating a prolonged effect of the enrichment on the animals' behavior. Catnip appears to have elicited no significant difference in the stereotypic pacing before, during, or after the enrichment (Friedman: X(2) = 2.69; p = .260). The results highlight the potential use of cinnamon as a method of environmental enrichment for small captive-housed cats.

Quantificação e descrição dos principais comportamentos de papagaios-chauá (smazona rhodocorytha, salvadori, 1890) cativos / Quantification and description of the behavior of parrots-browed amazon (amazona rhodocorytha, salvadori, 1890) captive

No presente estudo, investigou-se a influência da disposição de diferentes itens de ambientação no recinto sobre o padrão comportamental de um grupo de 21 papagaios-chauá (Amazona rhodocorytha), constituído por indivíduos de ambos os sexos e diferentes procedências e idades, alojados em um recinto no Centro de Reintrodução de Animais Silvestres (Cereias, ES). As observações ocorreram durante o inverno, entre os meses de julho e setembro. Utilizou-se o método de varredura para quantificar as categorias locomoção, exploração, manutenção, repouso, vocalização em movimento, vocalização em repouso, interações sociais agonísticas e afiliativas. Registrou-se também, durante as varreduras, a utilização do espaço pelas aves. Os resultados indicam que: 1) em ambientes mais abertos (com mais luminosidade) os animais tendem a ficar mais ativos; 2) os indivíduos desta espécie apresentam um tropismo por regiões mais altas (Atividade: 24,4%; Repouso: 64,7%) e evitam repousar no chão (Atividade: 8,4%; Repouso: 2,5%). Os resultados são discutidos em função do conhecimento disponível sobre o comportamento de outras espécies de psitacídeos, sua manutenção em cativeiro, e a relevância deste estudo para os programas de conservação da espécie.

In the present study the behaviors of a "chauá" group (Amazon rhodocorytha), a threatened species of parrot, was described and quantified. The group was constituted by 21 individuals from different origins, with different ages and from both sexes, kept in captivity. The influence of the position of different objects in the enclosed space and of the period of the day on the pattern of activity of the group was also investigated. The observation took place between July and September. The scan method was used to quantify the categories locomotion, exploration, maintenance, rest, vocalization in movement, vocalization in rest, agonistic and affiliative social interactions. Space use was also registered during scans. The results indicate that: 1) the activity of the animals depends on characteristics of the environment-in more exposed environments the animals tend to be more active; 2) the individuals of this species present a tropism for higher areas and they avoid to rest in the ground. The results are discussed in the light of the knowledge available about the behavior of other species of parrots, their maintenance in captivity, and the relevance of this study for species conservation programs.

Pre-and post-puberty physiological plasma oxytocin concentrations in male domestic cats (Felis silvestris catus) / Concentrações fisiológicas plasmáticas de ocitocina pré e pós-puberal em gatos machos (Felis silvestris catus)

The hormone oxytocin is released by the neuropituitary gland through stimulation of the neurons of the supraoptic and paraventricular nuclei of the hypothalamus. In order to determine the physiological concentrations of this hormone in domestic cats, blood samples were collected from 15 male animals (Felis silvestris catus) during the pre- and post-puberty periods (at four and eight months of age, respectively). Oxytocin determination was accomplished by radioimmunoassay. The average oxytocin concentrations measured in the pre- and post-puberty periods were 2.54±0.24 (μg/dL) and 2.53±0.28 (μg/dL), respectively, and there were no statistical differences between these measurements. Because there are few literature on the analysis of this hormone, especially in the case of male Felis silvestris catus, more studies on the influence of oxytocin on the physiology and reproduction of this species should be conducted under maintenance and situations of stress (such as transportation), and other routine events.

A ocitocina é um hormônio secretado pela neurohipófise através da estimulação dos neurônios dos núcleos supraópticos e paraventriculares do hipotálamo. Com o intuito de determinar as concentrações fisiológicas de ocitocina em gatos domésticos foram coletadas amostras de sangue de 15 animais (Felis silvestris catus) machos, nos períodos pré e pós puberdade (quarto e oitavo mês de vida), sendo utilizada a técnica de radioimunoensaio para tal determinação. Na primeira dosagem a concentração média foi de 2,54±0,24 (μg/dL), e na segunda 2,53±0,28 (μg/dL), não sendo encontrada diferenças significativas entre as médias analisadas. Devido a escassez de trabalhos analisando este hormônio, especialmente para machos desta espécie, sugere-se mais estudos abordando a influência deste hormônio na fisiologia e reprodução destes animais, tanto em condições de manutenção, condições de estresse, como no transporte e outras situações de rotina na vida destes animais.

Gato doméstico: futuro desafio para controle da raiva em áreas urbanas? / Domestic cat: Future challenge for the control of urban rabies?

O objetivo deste artigo foi introduzir debate a respeito da presente e, possivelmente, da futura relevância crescente do gato doméstico, no que se refere à saúde pública, com ênfase para a raiva (animal/urbana). A literatura científica que trata do papel específico do gato em relação às zoonoses ainda é reduzida. Essa espécie está se tornando o mais popular animal de companhia no mundo ocidental urbano, particularmente devido ao estilo de vida adotado pelas pessoas, com reduzido espaço residencial e pouco tempo disponível para se dedicarem aos animais de companhia, o que prejudica especialmente o cão, animal, até então, preferencial. A predominância do gato ainda não é observada no Brasil, contudo, se, em breve, ela for aqui reproduzida ter-se-á que rever as estratégias adotadas, particularmente nas campanhas de vacinação antirrábica. E as características etológicas do felino doméstico deverão ser consideradas para se estabelecer estratégias mais adequadas para que se vacine o número de animais recomendado.

This article aims to promote a debate over the actual and (possibly) future increasing relevance of the domestic cat concerning public health, with emphasis on rabies (animal/urban) control. Scientific literature on the specific role played by cats, especially with respect to zoonoses is scarce. This species is becoming the most popular pet in the western urban context. This is particularly because of the lifestyle adopted by the population, who live in smaller houses and have little time available for pet care, relegating dogs to a less preferential position. Cats do not predominate as domestic animals in Brazil yet, but if these animals soon become the preferential pets in our country, strategies adopted during anti-rabies vaccination campaigns will need to be reviewed. Furthermore, the ethological features of the domestic felid will have to be considered, so that a more suitable approach for the vaccination of the recommended number of animals can be established.

Cortisol influence on testicular testosterone secretion in domestic cat: an in vitro study / Ação do cortisol sobre a secreção de testosterona em testículos de gato doméstico: um estudo in vitro

The aim of the present experiment was to investigate the effect of corticosteroids (exogen) on in vitro testosterone secretion after stress by transportation (40 minutes). Feline testes (Felis silvestris catus) were incubated in the following media: TCM 199; TCM 199 + hCG 10_7M; TCM 199 + hydrocortisone 10_7M, or TCM 199 + hCG + hydrocortisone. The animals (n=21) were allocated into three groups: (S) that arrived at 3 h prior to surgery, (A) that remained in the laboratory for 36 h before being submitted to surgical procedure, and (C) that were also allowed to remain for 36 hours in the laboratory before the surgical procedure, but whose testes had been incubated with hydrocortisone prior to incubation in the referred media. The results showed that group S secreted higher levels of testosterone, regardless of the culture media. It is noteworthy that the suppressing action of hydrocortisone sodium succinate led to a reduction in the testosterone concentration, despite the presence of hCG.

O objetivo deste trabalho foi investigar o efeito da hidrocortisona sobre a secreção de testosterona após cultivo in vitro dos testículos, em distintas situações de estresse (transporte) de gatos domésticos (Felis silvestris catus). Testículos foram incubados nos seguintes meios de cultura: TCM 199; TCM 199 + hCG 10_7M; TCM 199 + hydrocortisona 10_7M e TCM 199 + hCG + hidrocortisona. Os animais (n=21) foram alocados em 3 sub-grupos: (S) animal admitido 3 horas antes da orquiectomia, (A) animais orquiectomizados após 36 horas de permanência no biotério e (C) animais que permaneceram por 36 horas no biotério antes da cirurgia e que tiveram seus testículos pré-incubados em hidrocortisona. Os resultados demonstraram que o grupo S secretou maiores valores de testosterona em todas as condições estudadas. É válido mencionar que a supressão promovida pela hidrocortisona também promoveu redução na concentração de testosterona no meio TCM 199, a despeito da presença de hCG.

Padrão de atividade de onças pintadas (Panthera onca Linnaeus, 1758) mantidas em cativeiro: manejo e comportamento / Activity pattern of jaguars (Panthera onca Linnaeus, 1758) in captytity: handle and behavior

O estudo do comportamento e do bem estar de onças pintadas (Panthera onca) mantidas em cativeiro é vital para o seu manejo e reprodução. Avaliamos as condições dos recintos e o manejo de 9 animais em 5 zoológicos (SP), correlacionando-os com as observações obtidas pelo etograma que foi estabelecido visando avaliar a duração dos comportamentos destes animais. Os resultados corroboram a visão de que os tratadores dos zoológicos apresentaram uma percepção consonante com nossos achados. No entanto, as diferenças comportamentais observadas entre zoológicos, com distintos regimes de manejo, indicam que estudos futuros serão necessários. Este estudo propõe-se a contribuir para o desenvolvimento de um modelo para aplicação das técnicas de quantificação comportamental na avaliação dos diferentes efeitos das condições de manutenção sobre o padrão de atividade das espécies de felídeos mantidas em cativeiro