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  1. Reasons People Surrender Unowned and Owned Cats to Australian Animal Shelters and Barriers to Assuming Ownership of Unowned Cats

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Most cats surrendered to nonhuman animal shelters are identified as unowned, and the surrender reason for these cats is usually simply recorded as “stray.” A cross-sectional study was conducted with people surrendering cats to 4 Australian animal shelters. Surrenderers of unowned cats commonly...

  2. Positive Reinforcement Training for Blood Collection in Grizzly Bears (Ursus arctos horribilis) Results in Undetectable Elevations in Serum Cortisol Levels: A Preliminary Investigation

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Training nonhuman animals in captivity for participation in routine husbandry procedures is believed to produce a lower stress environment compared with undergoing a general anesthetic event for the same procedure. This hypothesis rests largely on anecdotal evidence that the captive subjects...

  3. Perceptions of Social Responsibility of Prominent Animal Welfare Groups

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Nonhuman animal welfare is an increasingly important component of consumer expectations of corporate social responsibility (CSR). The extent to which prominent animal welfare or protection organizations may influence people’s perceptions of food industry CSR may be related to an organization’s...

  4. On-Farm Evaluation of an Automatic Enrichment Device with Maize Silage for Laying Hens

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Challenges in alternative housing for laying hens are barren functional areas such as winter gardens and the occurrence of behavioral disorders. Environmental enrichment is a measure to deal with these problems. Therefore, an enrichment device offering maize silage automatically was tested in two...

  5. Olfactory Enrichment in California Sea Lions (Zalophus californianus): An Effective Tool for Captive Welfare?

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    In the wild, California sea lions (Zalophus californianus) are exposed to a wide variety of sensory information, which cannot be replicated in captive environments. Therefore, unique procedures are necessary for maintaining physiological and psychological health in nonhuman animals in captivity....

  6. My Reflections on Understanding Animal Emotions for Improving the Life of Animals in Zoos

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Scientists are often reluctant to attribute emotions to nonhuman animals that are similar to human emotions. When the author published her early studies, reviewers prohibited the word fear. Fearful behavior had to be described as agitated. The core emotional systems described by Panksepp may...

  7. Investigation Into the Humaneness of Slaughter Methods for Guinea Pigs (Cavia porcelus) in the Andean Region

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Guinea pigs (Cavia porcelus) are an important source of nonhuman animal protein in the Andean region of South America. Specific guidelines regarding the welfare of guinea pigs before and during slaughter have yet to be developed. This study critically assessed the humaneness of 4 different...

  8. Improving the Welfare of a Zoo-Housed Male Drill (Mandrillus leucophaeus poensis) Aggressive Toward Visitors

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Improving the welfare of nonhuman animals in captivity and maintaining behavioral competence for future conservation purposes is of the highest priority for zoos. The behavior of an aggressive male drill (Mandrillus leucophaeus poensis) was assessed in Barcelona Zoo. The 2-year study presented in...

  9. Impacts of natural history and exhibit factors on carnivore welfare

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    To improve the welfare of nonhuman animals under professional care, zoological institutions are continuously utilizing new methods to identify factors that lead to optimal welfare. Comparative methods have historically been used in the field of evolutionary biology but are increasingly being...

  10. Hoofbeats From the Currituck Outer Banks: A Study of the Corolla Wild Horse Fund Adoption Program

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Research on the adoption and relinquishment of horses, both domestic and wild, remains limited. As a result, little is known about adopters, their adopted horses, and their adoption experience. This study surveyed and interviewed 17 adopters of Colonial Spanish mustangs through the Corolla Wild...

  11. Free-Roaming Cat (Felis Catus) Management and Welfare Policies in Two University Campuses in Beirut, Lebanon: Strengths, Weaknesses, and Opportunities

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Little information has been reported about the welfare and management of free-roaming animals in Middle Eastern countries. Here we describe a case study of free-roaming cat (Felis catus) management policies in two universities in Beirut, Lebanon whereby cats are immensely valued for their...

  12. Farmer and Public Attitudes Toward Lamb Finishing Systems

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    To develop research and policy on the welfare of lambs in intensive finishing systems, it is important to understand public and sheep farmers' attitudes. The aim of this research was to identify and compare farmer and community attitudes relevant to the intensification of lamb finishing. The...

  13. Evaluation of Enrichment for Reptiles in Zoos

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Studies on environmental enrichment for reptiles are lacking in the scientific literature. Although the literature reflects a limited take on reptile enrichment in the zoological community, it may not be the case in reality as enrichment is generally considered an important aspect of the care of...

  14. Evaluating the social structure of captive Rothschild’s giraffes (Giraffa camelopardalis rothschildi): Relevance to animal management and animal welfare

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Social network analysis (SNA) is useful for evaluating management zoo regimes to ensure that any fitness benefits of sociality are preserved in captive-housed groups. This paper explores the association patterns of 13 giraffes housed at Longleat Safari Park, UK. Wild giraffes exhibit a...

  15. Environmental Enrichment Effect on Fecal Glucocorticoid Metabolites and Captive Maned Wolf (Chrysocyon brachyurus) Behavior

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    Environmental enrichment is a technique that may reduce the stress of nonhuman animals in captivity. Stress may interfere with normal behavioral expression and affect cognitive decision making. Noninvasive hormonal studies can provide important information about the stress statuses of animals....

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

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    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...

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

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    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...

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

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    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...

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

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    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...

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

    Contributor(s): Mahmoud Khaled Masa\'deh, Sheila E. Purdum (adviser)

    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,...