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  1. Effects of Two CO2 Stunning Methods on the Efficacy of Stunning and Blood Stress Indicators of Turkeys under Commercial Processing Conditions

    Contributor(s): Guijarro, Angela, Mauri, Soledad, Aviles, Carmen, Peña, Francisco

    The effect of CO2 gas-stunning methods (G1: 30% CO2 15 sec, 55% CO2 40 sec, 70% CO2 45 sec; G2: 30% CO2 15 sec, 80% CO2 85 sec) on the efficacy of stunning, blood stress indicators and meat quality of turkeys were assessed. A total of 375 turkeys (125 heavy males, 125 light males, and 125 light...

  2. Effects of Short-Distance Recreational Mushing on Oxytocin, Gastrin, and Creatinine Kinase in Sled Dogs

    Contributor(s): Leggieri, Leonardo Ramón, Marozzi, Antonela, Panebianco, Antonella, Gregorio, Pablo, Carmanchahi, Pablo

    A considerable increase in creatinine kinase (CK) activity and gastrin hormone due to exercise has been observed in sled dogs during endurance mushing races; however, there have been no studies on sled dogs during recreational mushing. Although oxytocin hormone is involved in social behaviors and...

  3. Effects of Overcheck Use on Stress Parameters and Welfare Implications in Driving Horses

    Contributor(s): Bennett-Wimbush, K., J, Suagee-Bedore, Amstutz, M., Duthie, M.

    Three sequential studies were performed to evaluate the effects of tying horses while wearing overchecks (strap from the bridle to backpad). In an observational study, horses (n = 305) wore high (HC), low (LC), or no overchecks (NC) with frequencies of 29.2%, 51.8% and 19.0% respectively. Study 1...

  4. Effects of Oral Meloxicam and Topical Lidocaine on Pain associated Behaviors of Piglets Undergoing Surgical Castration

    Contributor(s): Burkemper, M. C., Pairis-Garcia, M. D., Moraes, L. E., Park, R. M., Moeller, S. J.

    The objective of this study was to find a practical means of reducing pain associated with surgical castration by evaluating the effects of oral meloxicam and topical lidocaine, separately and in combination, on behavioral indicators of pain in piglets. Two hundred thirty-five piglets were...

  5. Effects of Metabolic Cage Housing on Rat Behavior and Performance in the Social Interaction Test

    Contributor(s): Whittaker, Alexandra L., Lymn, Kerry A., Howarth, Gordon S.

    Although the metabolic cage is commonly used for housing nonhuman animals in the laboratory, it has been recognized as constituting a unique stressor. Such an environment would be expected to affect behavioral change in animals housed therein. However, few studies have specifically addressed the...

  6. Effects of environmental enrichment on activity and lameness in commercial broiler production

    Contributor(s): Vasdal, Guro, Vas, Judit, Newberry, Ruth C., Moe, Randi Oppermann

    The aim of this pilot study was to investigate the effects of commercially applied environmental enrichments on behavior and lameness in broilers. Two consecutive flocks of broilers were observed at 16 days and 30 days of age to investigate differences between enriched (peat, bales of lucerne...

  7. Effects of Enrichment Presentation and Other Factors on Behavioral Welfare of Pantropical Spotted Dolphin (Stenella attenuata)

    Contributor(s): Perez, Barbara C., Mehrkam, Lindsay R., Foltz, Amanda R., Dorey, Nicole R.

    Environmental enrichment is a crucial element of promoting welfare for animals in captivity. However, enrichment programs are not always formally evaluated for their efficacy. Furthermore, there is little empirical evidence of enrichment evaluation for species of small cetaceans in zoological...

  8. Effects of Calf Horn as Chews on the Behavior of Laboratory Dogs

    Contributor(s): Ketter, Daphne A., Klima, André, Küchenhoff, Helmut, Dobenecker, Britta, Schmidt, Jörg, Erhard, Michael H., Döring, Dorothea

    It is increasingly required that non-human animals in laboratories are provided with adequate enrichment to promote the welfare of the animals. In a previous publication we showed that laboratory dogs intensively used the horn of calf hooves as chewing objects. In this report, we describe the...

  9. Effect of Visitor Perspective on Adoption Decisions at One Animal Shelter

    Contributor(s): Southland, Anastacia, Dowling-Guyer, Seana, McCobb, Emily

    This study investigated the visitor experience at one urban animal shelter. While several previous studies have examined the reasons particular nonhuman animals are chosen by adopters, few have investigated the possible reasons one would visit a shelter and leave without adopting. Over a...

  10. Effect of switch trimming on udder and teat hygiene of dairy cows

    Contributor(s): Ingle, Heather D., Rice, Christa A., Black, Randi A., Childers, Sarah Z., Eberhart, Nicole L., Prado, Maria E., Krawczel, Peter D.

    The study objective was to determine the effects of trimming the switch of dairy cows on teat-end bacterial counts and udder hygiene scores. Cows (n = 102) were blocked by days in milk, milk production, and parity and then assigned to (a) treatment (trimming of their tail switch using a...

  11. Effect of simple and low-cost enrichment items on behavioral, clinical, and productive variables of caged laying hens

    Contributor(s): Frediani, Mayra H., Pizzutto, Cristiane S., Alves, Maíra B. R., Pereira, Ricardo J. G.

    Housing layers in battery cages is a practice still used by many countries but it has been criticized because of its influence on behavioral repertoire of birds. We investigated whether simple and affordable enrichment devices alone impact behavior, foot condition and performance of laying hens...

  12. Effect of Capacity for Care on cat admission trends at the Guelph Humane Society, 2011–2015

    Contributor(s): Janke, Natasha, Berke, Olaf, Klement, Eyal, Flockhart, D. T. Tyler, Coe, Jason, Bateman, Shane

    In recent years, there has been a growing concern regarding populations of cats who are homeless. Shelters are constantly overwhelmed by the influx of cats without caregivers and are seeking solutions to enhance positive outcomes for them. In 2014, the Guelph Humane Society implemented a...

  13. Effect of Cage Type on Fecal Corticosterone Concentration in Buck Rabbits During the Reproductive Cycle

    Contributor(s): Cornale, Paolo, Macchi, Elisabetta, Renna, Manuela, Prola, Liviana, Perona, Giovanni, Mimosi, Antonio

    Fecal corticosterone concentration (FCC) was measured in 14 buck rabbits individually housed in standard-dimension cages (SC) or in bigger cages (BC; with a volume more than double that of SC and equipped with a plastic foot mat) during 4 consecutive reproductive cycles. Cage type and...

  14. The Effect of an Irregular Feeding Schedule on Equine Behavior

    Contributor(s): Zupan, Manja, Štuhec, Ivan, Jordan, Dušanka

    We used eight horses 1 to 12 years old to investigate the influence of irregular feeding times on the behavior. The animals were housed in individual boxes, fed with hay ad libitum and barley-oat mixture at three set times; 05:00 (earlier feeding) on Thursdays, 07:00 (delayed feeding) on...

  15. Effect of Adopters' Lifestyles and Animal-Care Knowledge on Their Expectations Prior to Companion-Animal Guardianship

    Contributor(s): O'Connor, Rachel, Coe, Jason B., Niel, Lee, Jones-Bitton, Andria

    Human expectations can greatly affect the human–companion animal relationship, sometimes putting nonhuman animals at risk for relinquishment. At 20 animal shelters in Southern Ontario, Canada, potential adopters (N = 234) completed a questionnaire regarding their lifestyle, companion animal-care...

  16. Dutch Consumers’ Willingness to Pay for Broiler Welfare

    Contributor(s): Mulder, Machiel, Zomer, Sigourney

    This article analyzes Dutch consumers’ willingness to pay (WTP) for the welfare of broiler chickens and the consequences for nonhuman animal welfare policies. Using data from a discrete-choice experiment and a random parameter logit model, this study showed that consumers particularly value...

  17. Does the location of enrichment material affect behavior and dirtiness in growing female pigs?

    Contributor(s): Dalmau, Antoni, Areal, Bruno, Machado, Silvana, Pallisera, Joaquim, Velarde, Antonio

    The objective of this study was to investigate if female growing pigs spend similar amounts of time exploring a wooden stick as they do exploring enrichment material regardless of its proximity to the feeder. Forty-eight pigs aged 18 to 26 weeks allocated to 16 pens with three pigs per pen were...

  18. Does Enrichment Improve Well Being in Animals under Human Care? A Case Study of Two Harbor Seals (Phoca Vitulina)

    Contributor(s): Vaicekauskaite, Ruta, Schneider, Jennifer N., Delfour, Fabienne

    Harbor seals in the wild live in a stimulating environment; therefore, nonhuman-animal caretakers have increasingly been using environmental enrichment to improve the well being of seals under human care. The purpose of this study was to evaluate an object-based environmental enrichment program...

  19. Development of a Canine Care and Welfare Knowledge Scale: Implications for Welfare and Preventing Dogfighting

    Contributor(s): Iliopoulou, Maria A., Rosenbaum, Rene P., Carleton, Carla L.

    The objective of this study was to develop a Canine Care and Welfare Knowledge (CCWK) Scale for use in educational intervention development and evaluation and validate the instrument. The study population was 504 children, aged 11 to 19 years old, from Detroit, MI. In this cross-sectional study,...

  20. Designing Better Water Troughs: Does Trough Color Influence Dairy Cows’ Preference?

    Contributor(s): Teixeira, Dayane Lemos, Hötzel, Maria José, Filho, Luiz Carlos Pinheiro Machado, Cazale, José Daniel, Enríquez-Hidalgo, Daniel

    Eighteen lactating dairy cows were used to elucidate their preference for green, grey, or red troughs. The herd was managed under a rotational grazing system with ad-libitum access to water until 11:30 h. For 9 days, all cows were tested individually following the afternoon milking. Cows drank...