Publications

Fish sentience denial: Muddying the waters

Recent empirical studies have reported evidence that many aquatic species, including fish, cephalopods and crustaceans, have the capacity for nociception and pain, and that their welfare should be taken into consideration. Some sceptics, rejecting the precautionary principle, have denied that...

Year Published: 2018Topics: Welfare AssessmentAnimal Type: Fish, Zebrafish

Citation: Sneddon, L. U., Lopez-Luna, J., Wolfenden, D. et al. 2018. Fish sentience denial: Muddying the waters. Animal Sentience 21(1).

Quantification of hair cortisol concentration in common marmosets (Callithrix jacchus) and tufted capuchins (Cebus apella)

Quantifying cortisol concentration in hair is a non‐invasive biomarker of long‐term hypothalamic‐pituitary‐adrenal (HPA) activation, and thus can provide important information on laboratory animal health. Marmosets (Callithrix jacchus) and capuchins (Cebus apella) are New World primates increasingly used in biomedical and...

Year Published: 2018Topics: Biological Sampling & Physiological MeasurementAnimal Type: Capuchin, Marmoset, Nonhuman Primate

Citation: Phillips, K.A., Tukan, A. N., Rigodanzo, A. D. et al. 2018. Quantification of hair cortisol concentration in common marmosets (Callithrix jacchus) and tufted capuchins (Cebus apella). American Journal of Primatology 80(7), e22879.

Intermittent pair-housing, pair relationship qualities, and HPA activity in adult female rhesus macaques

Laboratory rhesus macaques are often housed in pairs and may be temporarily or permanently separated for research, health, or management reasons. While both long‐term social separations and introductions can stimulate a stress response that impacts inflammation and immune function, the...

Year Published: 2018Topics: Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Hannibal, D. L., Cassidy, L. C.,Vandeleest, J. et al. 2018. Intermittent pair-housing, pair relationship qualities, and HPA activity in adult female rhesus macaques. American Journal of Primatology 80(5), e22762.

Infrared thermal imaging: Positive and negative emotions modify the skin temperatures of monkey and ape faces

Facial thermography has enabled researchers to noninvasively and continuously measure the changes of a range of emotional states in humans. The present work used this novel technology to study the effect of positive and negative emotions in nonhuman primates by...

Year Published: 2018Topics: Welfare AssessmentAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Chotard, H., Ioannou, S., Davila-Ross, M. 2018. Infrared thermal imaging: Positive and negative emotions modify the skin temperatures of monkey and ape faces. American Journal of Primatology 80(5), e22863.

Prevalence and characteristics of hair plucking in captive bonobos (Pan paniscus) in North American zoos

When primates exhibit hair loss and are observed to engage in self or social hair plucking (a rapid jerking away of the hair shaft and follicle by the hand or mouth, often accompanied by inspection, and consumption) the altered appearance,...

Year Published: 2018Topics: Abnormal/Problematic BehaviorAnimal Type: Chimpanzee, Nonhuman Primate, Other Nonhuman Primate

Citation: Brand, C. M., Marchant, L. F. 2018. Prevalence and characteristics of hair plucking in captive bonobos (Pan paniscus) in North American zoos. American Journal of Primatology 80(4), e22751.

Captive chimpanzee (Pan troglodytes) behavior as a function of space per animal and enclosure type

Space per animal, or animal density, and enclosure type are important elements of functionally appropriate captive environments (FACEs) for chimpanzees. The National Institutes of Health (NIH) recommends that captive chimpanzees be maintained in areas of >250 ft2/animal. Several studies have...

Year Published: 2018Topics: HousingAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Neal Webb, S. J., Hau, J., Schapiro, S. J. 2018. Captive chimpanzee (Pan troglodytes) behavior as a function of space per animal and enclosure type. American Journal of Primatology 80(2), e22749.

Social hair pulling in captive rhesus macaques (Macaca mulatta)

Alopecia is common among captive populations of nonhuman primates. There are many potential causes of alopecia, including physiological conditions such as hormonal imbalance and infection, features of the captive environment such as housing type, ground substrate, and group density, as...

Year Published: 2017Topics: Abnormal/Problematic BehaviorAnimal Type: Macaque, Nonhuman Primate

Citation: Heagerty, A., Wales, R. A., Prongay, K. et al. 2017. Social hair pulling in captive rhesus macaques (Macaca mulatta). American Journal of Primatology 79(12), e22720.

Higher levels of submissive behaviors at the onset of the pairing process of rhesus macaques (Macaca mulatta) are associated with lower risk of wounding following introduction

Social housing of rhesus macaques (Macaca mulatta) is considered to be the cornerstone of behavioral management programs in biomedical facilities. However, it also involves the risk of socially inflicted trauma. The ability to avoid such trauma would contribute to the...

Year Published: 2017Topics: Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Pomerantz, O., Baker, K. C. 2017. Higher levels of submissive behaviors at the onset of the pairing process of rhesus macaques (Macaca mulatta) are associated with lower risk of wounding following introduction. American Journal of Primatology 79(8), e22671.

Effects of human management events on conspecific aggression in captive rhesus macaques (Macaca mulatta)

Conspecific aggression in outdoor-housed rhesus macaques (Macaca mulatta) at primate research facilities is a leading source of trauma and can potentially influence animal wellbeing and research quality. Although aggression between macaques is a normal part of daily social interactions, human...

Year Published: 2017Topics: Husbandry & Management, Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Theil, J. H., Beisner, B. A., Hill, A. E. et al. 2017. Effects of human management events on conspecific aggression in captive rhesus macaques (Macaca mulatta). JAALAS 56(2), 122-130.

Comparison of atipamezole with yohimbine for antagonism of xylazine in mice anesthetized with ketamine and xylazine

The α2 adrenergic agonist xylazine produces a sedative effect and is typically combined with ketamine and used for anesthesia or chemical restraint of laboratory mice. Xylazine's sedative effect—and its undesirable side effects of bradycardia, hypotension, and poor tissue perfusion—can be...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Mouse, Rodent

Citation: Janssen, C. F., Maiello, P., Wright Jr, M. J. et al. 2017. Comparison of atipamezole with yohimbine for antagonism of xylazine in mice anesthetized with ketamine and xylazine. JAALAS 56(2), 142-147.