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Articles 1 - 14 of 14
Full-Text Articles in Animal Sciences
Perches As Cooling Devices For Reducing Heat Stress In Caged Laying Hens: A Review, Jiaying Hu, Yijie Xiong
Perches As Cooling Devices For Reducing Heat Stress In Caged Laying Hens: A Review, Jiaying Hu, Yijie Xiong
Department of Animal Science: Faculty Publications
Heat stress is one of the most detrimental environmental challenges affecting the biological process and the related production performance of farm animals, especially in poultry. Commercial laying hens have been bred (selected) for high egg production, resulting in increased sensitivity to heat stress due to breeding-linked metabolic heat production. In addition, laying hens are prone to heat stress due to their inadequate species-specific cooling mechanisms resulting in low heat tolerance. In addition, hens have no sweat glands and feathering covers almost their entire body to minimize body heat loss. The poultry industry and scientists are developing cooling methods to prevent …
The Behaviors Of A Captive Father-Daughter Pair Of Ateles Geoffroyi Geoffroyi, Felicia Gordian
The Behaviors Of A Captive Father-Daughter Pair Of Ateles Geoffroyi Geoffroyi, Felicia Gordian
The Pegasus Review: UCF Undergraduate Research Journal
The Central Florida Zoo and Botanical Gardens intends to introduce new members to the black-handed spider monkeys (Ateles geoffroyi geoffroyi) enclosure. The behavioral analysis of captive animals within their human-made zoo environments is pertinent information for zookeepers before such an introduction can be made. To contribute to that goal, this study observed the behaviors of a father-daughter pair of black-handed spider monkeys. This study observed their vocalizations, habitat utilization, enrichment utilization, conspecific interactions, and interactions with humans to better understand how they interact with their environment as well as their group dynamics. This behavioral baseline can then be utilized to …
The Impacts Of Embryonic Arsenic Exposure Of Fundulus Heteroclitus, Torey Bowser
The Impacts Of Embryonic Arsenic Exposure Of Fundulus Heteroclitus, Torey Bowser
Electronic Theses and Dissertations
Arsenic is a toxic metalloid that exceeds safe drinking water standards in groundwater in many locations worldwide. Arsenic exposure in fish has been linked to destruction of gill tissues, impairment of growth, decreased muscle mass, memory impairment, increased aggression, and avoidance behaviors. We examined the behavior of mummichogs (Fundulus heteroclitus) following arsenic exposure during development in two studies. Embryos were collected from fish from three reference sites: Scorton Creek (SC), Massachusetts, Wells Harbor (WE), Maine, and Block Island (BLOC), Rhode Island and two contaminated sites: Callahan Mine (CM), Brooksville, Maine, and New Bedford Harbor (NBH), Massachusetts. Embryos were …
Ecological Correlates Of Alligator Snapping Turtle Bite Performance, Ashley Herrin Gagnon
Ecological Correlates Of Alligator Snapping Turtle Bite Performance, Ashley Herrin Gagnon
MSU Graduate Theses
The Alligator Snapping Turtle (Macrochelys temminckii) is one of many turtle species facing conservation challenges. Nearly extirpated in the 1980s, it is currently the subject of a head-start initiative, of which, any lasting behavioral or physiological effects were—until now—unknown! To evaluate the ability of captive-reared individuals to excel in natural habitats, and to foresee any future research or conservation challenges regarding this animal, I explored a suite of variables that influence bite performance and behaviors including captive or free-ranging status, and environmental conditions including body temperature and season. My results indicated that free-ranging M. temminckii outperform those residing …
Changes In Fecal Glucocorticoid Levels And Possible Microbiome Profile Changes During Positive Enrichment In A Captive Population Of Tigers (Panthera Tigris), Sylvia R. Ramsey
Changes In Fecal Glucocorticoid Levels And Possible Microbiome Profile Changes During Positive Enrichment In A Captive Population Of Tigers (Panthera Tigris), Sylvia R. Ramsey
Undergraduate Theses
Cortisol is a hormone that is released in response to stress. Cortisol can be damaging in high amounts and it is ideal to maintain at a low level. Captive animals can experience high baseline levels of cortisol during their captivity, verses their non-captive counterparts, (Terio, Marker, & Munson, 2004). Enrichment, a stimulus that encourages an animal to perform natural behavior, is offered to captive animals to allow the animal to exhibit natural behaviors and hopefully lower stress levels. This experiment analyzes if exposure to a positive enrichment significantly impacts an animal’s fecal cortisol levels. Fecal cortisol levels are indicative of …
Effects Of Anthropogenic Light And Noise On Anuran Breeding Behavior, Ashley Kobisk
Effects Of Anthropogenic Light And Noise On Anuran Breeding Behavior, Ashley Kobisk
Electronic Theses and Dissertations
The natural environment can be negatively impacted by a variety of human activities, including the production of artificial light at night and anthropogenic noise. Recent studies suggest that pollution from anthropogenic light and noise alters animal behavior. Despite being highly nocturnal and vocal animals, little attention has been given to anurans and the effects artificial light at night and anthropogenic noise have on their behavior. This study investigated the effects of artificial light at night and anthropogenic noise on anuran breeding systems in eastern Texas. Specifically, this study investigated whether (1) artificial light and anthropogenic noise altered calling behavior in …
Effect Of Temperature On Questing Activity Of Ixodes Scapularis In A Laboratory Setting, Molly Meagher
Effect Of Temperature On Questing Activity Of Ixodes Scapularis In A Laboratory Setting, Molly Meagher
Thinking Matters Symposium
Understanding deer tick (Ixodes scapularis) behavior is increasingly important due to the species’ northerly range expansion, and consequently, increased human contact. Deer ticks are a major public health concern, as they are the primary vector of Lyme disease and other serious diseases. Differences in questing behavior are of considerable interest as fluctuating weather due to climate change effect the species’ range expansion and time spent questing. Although previous research has examined temperature preferences of tick behavior, there are conflicting reports about direct effects on questing activity. Therefore, I addressed the relationship between temperature and questing behavior of adult deer ticks. …
Feeding Cannabidiol (Cbd)-Containing Treats Did Not Affect Canine Daily Voluntary Activity, Elizabeth M. Morris, Susanna E. Kitts-Morgan, Dawn M. Spangler, Jessica Gebert, Eric S. Vanzant, Kyle R. Mcleod, David L. Harmon
Feeding Cannabidiol (Cbd)-Containing Treats Did Not Affect Canine Daily Voluntary Activity, Elizabeth M. Morris, Susanna E. Kitts-Morgan, Dawn M. Spangler, Jessica Gebert, Eric S. Vanzant, Kyle R. Mcleod, David L. Harmon
Animal and Food Sciences Faculty Publications
Growing public interest in the use of cannabidiol (CBD) for companion animals has amplified the need to elucidate potential impacts. The purpose of this investigation was to determine the influence of CBD on the daily activity of adult dogs. Twenty-four dogs (18.0 ± 3.4 kg, 9 months−4 years old) of various mixed breeds were utilized in a randomized complete block design with treatments targeted at 0 and 2.5 mg (LOW) and at 5.0 mg (HIGH) CBD/kg body weight (BW) per day split between two treats administered after twice-daily exercise (0700–0900 and 1,700–1,900 h). Four hours each day [1,000–1,200 h (a.m.) …
Sugar Glider (Petaurus Breviceps) Behavior In Red Vs Blue Lighting, Elisa Hillman
Sugar Glider (Petaurus Breviceps) Behavior In Red Vs Blue Lighting, Elisa Hillman
Honors Thesis
Sugar gliders are an exotic pet that is increasing in popularity in households as well as in zoos. One challenge that caregivers have to manage is their nocturnal circadian rhythm. In order for people to view or interact with sugar gliders during their active time, many zoos will reverse their diurnal cycle with lights. The discovery of intrinsically photosensitive retinal ganglion cells (ipRGCs) which seems to have an increased sensitivity to blue light and how these cells affect the hypothalamic suprachiasmatic nucleus (SCN) and circadian rhythm has led to an increase in awareness on the health effects of being exposed …
Behavioral Analysis Of The Cryptoprocta Ferox In An Ex-Situ Condition, Emilie Alfonso
Behavioral Analysis Of The Cryptoprocta Ferox In An Ex-Situ Condition, Emilie Alfonso
The Pegasus Review: UCF Undergraduate Research Journal
Fossas (Cryptoprocta ferox) are the top, endemic predators of Madagascar. Their populations are dwindling and are reported as “Vulnerable” by IUCN. In an effort to combat this, zoological facilities have placed the species on a captive breeding program. This study focuses on concerns one of those zoos had about their captive C. ferox. The purpose of this study was to collect activity budgets on the C. ferox to determine if there is a change in behavior due to construction occurring around the C. ferox’s habitat, analyze behavior changes during estrus, determine any behavior changes, as well …
First Experience With A Camera Collar In A Free-Ranging Przewalski’S Horse Group In The Mongolian Gobi, Petra Kaczensky, Chris Walzer, Gankhuyag Gantula, Davaa Lkhagvasuren, Bazartseren Boldgiv, Oyunsaikhan Ganbaatar, Nanjid Altansukh
First Experience With A Camera Collar In A Free-Ranging Przewalski’S Horse Group In The Mongolian Gobi, Petra Kaczensky, Chris Walzer, Gankhuyag Gantula, Davaa Lkhagvasuren, Bazartseren Boldgiv, Oyunsaikhan Ganbaatar, Nanjid Altansukh
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Remote sensing and satellite telemetry have allowed to greatly expanding the understanding of how species use various landscapes, even in remote settings. However, remotely collecting data also harbors the risk of losing “touch with the ground.” We explore the possibility of the additional insight cameras integrated in GPS-satellite collars can provide for the behavior and ecology of free-ranging Przewalski’s horse in the remote Great Gobi B Strictly Protected Area in southeastern Mongolia. Over a 91-day period, the camera collected 1,080 images. 62% of the images showed Przewalski’s horses and provided insights into behavior and grouping patterns and can supplement indirect …
Lifetime Reproductive Benefits Of Cooperative Polygamy Vary For Males And Females In The Acorn Woodpecker (Melanerpes Formicivorus), Sahas Barve, Christina Riehl, Eric L. Walters, Joseph Haydock, Hannah L. Dugdale, Walter D. Koenig
Lifetime Reproductive Benefits Of Cooperative Polygamy Vary For Males And Females In The Acorn Woodpecker (Melanerpes Formicivorus), Sahas Barve, Christina Riehl, Eric L. Walters, Joseph Haydock, Hannah L. Dugdale, Walter D. Koenig
Biological Sciences Faculty Publications
Cooperative breeding strategies lead to short-term direct fitness losses when individuals forfeit or share reproduction. The direct fitness benefits of cooperative strategies are often delayed and difficult to quantify, requiring data on lifetime reproduction. Here, we use a longitudinal dataset to examine the lifetime reproductive success of cooperative polygamy in acorn woodpeckers (Melanerpes formicivorus), which nest as lone pairs or share reproduction with same-sex cobreeders. We found that males and females produced fewer young per successful nesting attempt when sharing reproduction. However, males nesting in duos and trios had longer reproductive lifespans, more lifetime nesting attempts and higher …
Daily And Landscape Influences Of Species Visitation To Toxic Bait Sites For Wild Pigs, Nathan P. Snow, Joseph M. Halseth, Michael P. Glow, Michael Lavelle, Justin Fischer, Eric H. Vannatta, Kurt C. Vercauteren
Daily And Landscape Influences Of Species Visitation To Toxic Bait Sites For Wild Pigs, Nathan P. Snow, Joseph M. Halseth, Michael P. Glow, Michael Lavelle, Justin Fischer, Eric H. Vannatta, Kurt C. Vercauteren
USDA Wildlife Services: Staff Publications
Toxic baiting of wild pigs (Sus scrofa) is a potential new tool for population control and damage reduction in the United States. Use of toxic bait sites by non‐target species is concerning because of the risks posed from exposure to a toxic bait. A 2018 field trial in northern Texas, USA, examining the efficacy of a prototype toxic bait (HOGGONE®, containing 10% sodium nitrite) revealed unexpected hazards to non‐target species, primarily passerine birds, from consuming toxic bait spilled outside of bait stations by wild pigs. The hazards jeopardize the ability to register HOGGONE as a tool for controlling …
Will There Be Changes In Sexually Differentiated Behaviors In Mice Manipulated For The Sry Gene As They Mature Into Adultood?, Subin Joo
CMC Senior Theses
Sexually differentiated behavior has been shown to be affected by both genes and hormones. The discovery of the SRY gene, which codes for the development of testes, lead to the development of the Four Core Genotypes model of mice, and the separation of sex chromosomes and its resulting gonadal hormones. Using the FCG model, this study aims to look at the development of sexually differentiated behavior in mice, and track how it changes throughout their life. FCG mice will be divided into individual and social housing, and repeated experiments carried out to test their reaction to both intact female and …