Open Access. Powered by Scholars. Published by Universities.®

Other Animal Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 811 - 840 of 2030

Full-Text Articles in Other Animal Sciences

Acclimatization Of Coregonus Autumnalis Migratorius (Georgi, 1775) In Some Water Bodies Of The Mongolian Gobi, Auyriin Dulmaa Jan 2016

Acclimatization Of Coregonus Autumnalis Migratorius (Georgi, 1775) In Some Water Bodies Of The Mongolian Gobi, Auyriin Dulmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Introductions and subsequent acclimatization of the fish Baicalian omul (Coregonus autumnalis migratorius natio possolskii) was carried out in 1980, 1982, and 1986 in the previously fishless lakes of Ulaagchnii Khar, Baga, and Jaahan located in the territory of Gobi region of the Zavhan administrative aimag of Mongolia. Three million larvae of Coregonus autumnalis migratorius natio possolskii were received from the Bolshrechnsky fishery in Buryatya, Russia (DULMAA 1999). The density of distribution was 10-15 thousand units per hectare with an average larvae mass of 0.05 g. The relatively abundant fodder base has facilitated the high rate of growth and …


Register Of Chironomids (Diptera, Chironomidae) Of The Lake Khubsugul In Mongolia, E. A. Erbaeva, G. P. Safronov Jan 2016

Register Of Chironomids (Diptera, Chironomidae) Of The Lake Khubsugul In Mongolia, E. A. Erbaeva, G. P. Safronov

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This list presents 107 species and forms of Chironomidae larvae from the lake Khubsugul, which belonging to 5 subfamilies of Chironomidae: Tanypodinae (11 species), Diamesinae (7), Prodiamesinae (1), Orthocladiinae (48), Chironomiinae (40).


Current Status And Conservation Of Mountain Ungulates In Mongolia, Badamjav Lkhagvasuren, Yansanjav Adiya, Garam Tsogtjargal, Garam Amgalanbaatar, Rich Harris Jan 2016

Current Status And Conservation Of Mountain Ungulates In Mongolia, Badamjav Lkhagvasuren, Yansanjav Adiya, Garam Tsogtjargal, Garam Amgalanbaatar, Rich Harris

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In November 2009, we conducted a countrywide survey for wild sheep or argali and Siberian ibex. Field survey teams sampled in total 134 argali distribution units within Mongolia, which are estimated to occupy approximately 46,603 km² of the whole area of 60,237 km² that been previously mapped as populated by argali. They observed 385 groups of argali, totaling 3.373 individuals. Our point estimate of argali is 18,140 with a lower 95% confidence limit of 9,193 and an upper 95% confidence limit of 43,135.

At the same time the authors observed 162 groups of ibex, totaling 2,541 individuals and our point …


New Data On Small Mammals Of Neolithic Sites And Burial Grounds In Mongolia, Fedora Khenzykhenova, Nataly Schepina, Dashzeveg Tumen, Myagmar Erdene, Nataly Tsydenova, D. Khatanbaatar Jan 2016

New Data On Small Mammals Of Neolithic Sites And Burial Grounds In Mongolia, Fedora Khenzykhenova, Nataly Schepina, Dashzeveg Tumen, Myagmar Erdene, Nataly Tsydenova, D. Khatanbaatar

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

New data about animals obtained by Mongolian paleoanthropologists, National University of Mongolia and Russian archaeologist, Institute of Mongolian, Buddist and Tibetan studies, Siberian Branch, Russian Academy of Sciences were obtained under the direction of Professors Dashzeveg Tumen and Myagmar Erdene. The faunistic materials were excavated from localities of different origins including burial grounds, old cities, and Neolithic sites in different areas of Mongolia. Species composition of the large mammal fauna included two species and, the small mammal fauna was represented by two species of lagomorphs, and six species of rodents which are also components of the recent fauna of Mongolia.


How Could Unmanned Aerial Systems (Uas) Be Used For Ecohydrological And Ecosystem Research? Experiences Of First Operations With Uas In River Flood Plains Of Northern Mongolia, Jürgen Hofmann, Martin Oczipka, Thomas Rutz, Hauke Dämpfling Jan 2016

How Could Unmanned Aerial Systems (Uas) Be Used For Ecohydrological And Ecosystem Research? Experiences Of First Operations With Uas In River Flood Plains Of Northern Mongolia, Jürgen Hofmann, Martin Oczipka, Thomas Rutz, Hauke Dämpfling

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This paper proposes the use of unmanned aerial systems (UAS) as a method for monitoring biotic resources and ecohydrological systems in river floodplains.

Small scale mapping based on LANDSAT and SRTM or ASTER data is of limited applicability since a spatial resolution of 30 to 90 m is not sufficient to meet the demands of habitat mapping and large scale 3D -modelling. Newer satellites like WorldView2 and SENTINEL (space mission from European Space Agency within the Copernicus Programme) could be an option to gain a 0.5 m resolution, but the availability of image data is limited.

UAS allow the collection …


Der Mönchsgeier Aegypius Monachus (L., 1766) Und Seine Mallophagen (Insecta, Phthiraptera) In Der Mongolei = Cinereous Vulture Aegypius Monachus (L., 1766) And Its Chewing Lice (Insecta, Phthiraptera) In Mongolia, Eberhard Mey, Michael Stubbe, Davaa Lchagvasuren, Annegret Stubbe Jan 2016

Der Mönchsgeier Aegypius Monachus (L., 1766) Und Seine Mallophagen (Insecta, Phthiraptera) In Der Mongolei = Cinereous Vulture Aegypius Monachus (L., 1766) And Its Chewing Lice (Insecta, Phthiraptera) In Mongolia, Eberhard Mey, Michael Stubbe, Davaa Lchagvasuren, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

During a series of studies on the population, ecology, and biology of the Cinereous Vulture in Mongolia, fully feathered nestlings of the species from 9 nests were examined, without the use of chemical methods, for Mallophaga infestation from 2010 to 2015. The collection resulted in several first records for Mongolia of three species: Laemobothrion vulturis (J. C. FABRICIUS, 1775) sensu lato (Amblycera, Laemobothriidae), Neocolpocephalum aegypii (TENDEIRO, 1989) (Amblycera, Menoponidae s. l.) sp. inq., and Falcolipeurus quadripustulatus (BURMEISTER, 1838) (Ischnocera, Philopteridae s. l.). Despite being expected, there has still been no record of Agypoecus brevicollis (BURMEISTER, 1838) in Mongolia.

Chewing louse …


"My Paintings Would Be No Different Than A Picture In A Biology Textbook", Andi Kur Jan 2016

"My Paintings Would Be No Different Than A Picture In A Biology Textbook", Andi Kur

UReCA: The NCHC Journal of Undergraduate Research and Creative Activity

I find that there are innate balances in life, universal dichotomies that permeate our understanding of the world. My paintings are about a duality such as this that exists between art and science. We are told from youth that these subjects are poles in constant strain, as miscible as oil in water. I spent thirteen years in school believing that I must choose between the two, that it is unnecessary to carry both with me. Drawn between a distinct love of each, I realized how vehemently I disagreed. Everything: every rock to every tree to every person is suspended between …


Key To The Bat Fleas Of Mongolia, Ingo Scheffler Jan 2016

Key To The Bat Fleas Of Mongolia, Ingo Scheffler

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Fleas of the family Ischnopsyllidae belong to the common bat ectoparasites. The current taxonomic status of these insects in Mongolia includes seven species for which we provide a determination key.


Bat Ectoparasites Of Mongolia, Part 3, Ingo Scheffler, Ariunbold Jargalsaikhan, Idertsogt Bolorchimeg, Annegret Stubbe, Michael Stubbe, Andreas Abraham, K. Thiele Jan 2016

Bat Ectoparasites Of Mongolia, Part 3, Ingo Scheffler, Ariunbold Jargalsaikhan, Idertsogt Bolorchimeg, Annegret Stubbe, Michael Stubbe, Andreas Abraham, K. Thiele

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The fauna of Mongolian bats and their ectoparasites is not yet fully documented. This study analyzes ectoparasite samples of 15 bat species from diverse taiga, steppe, and desert locations. We recorded 27 parasite species in total and report their abundance, host preference, and occurrence herein. In describing a new bat fly species (Basilia dolchii n. spec.), reporting six parasite species never before recorded in Mongolia, and examining rare host species such as Myotis frater and Murina hilgendorfi, this work expands present knowledge in this research area. To assess respective individual and species-specific parasite loads comprised of different insects …


Assessing The Effects Of Prescribed Fire On Foraging Bats At Mammoth Cave National Park After The Arrival Of White-Nose Syndrome, Rachael Elizabeth Griffitts Jan 2016

Assessing The Effects Of Prescribed Fire On Foraging Bats At Mammoth Cave National Park After The Arrival Of White-Nose Syndrome, Rachael Elizabeth Griffitts

Online Theses and Dissertations

Habitat use of bats may shift following population level impacts of White-nose Syndrome (WNS). Multiple bat species have experienced unprecedented population declines due to WNS, including federally listed Myotis sodalis (Indiana bat) and Myotis septentrionalis (northern long-eared bat). Specifically, the effect of WNS across forest landscapes is unclear in relation to prescribed fire. Mammoth Cave National Park (MACA) has employed a prescribed fire regime since 2002 and WNS was detected on MACA in 2013. Bat activity was monitored across burned and unburned sites at MACA before (2010-2012) and after the detection of WNS (2013-2016) using transects of acoustic detectors (Anabat …


The Behavioral, Biochemical And Genetic Effects Of Sleep Deprivation In Zebrafish (Danio Rerio), Jade Catherine Boykin Jan 2016

The Behavioral, Biochemical And Genetic Effects Of Sleep Deprivation In Zebrafish (Danio Rerio), Jade Catherine Boykin

College of Graduate Studies: Theses & Dissertations

Vertebrate sleep is a universal phenomenon and encompasses an array of conserved behavioral and physiological characteristics. Studies of sleep in humans have shown that sleep deprivation leads to adverse effects to human health and additional stress. Teleosts have emerged as a useful model species to study the vertebrate stress response, given its stress axis has high levels of homology with the mammals, including humans. For this study, the behavior of zebrafish (Danio rerio) subjected to acute (24 hours) and chronic (20 days) extended light exposure was monitored and whole-body cortisol was analyzed as an indication of activation of …


Towards Determination Of The Threonine Requirement Of Yearling Horses Fed Varying Dietary Compositions Using The Indicator Amino Acid Oxidation Method, Kelsey M. Smith Jan 2016

Towards Determination Of The Threonine Requirement Of Yearling Horses Fed Varying Dietary Compositions Using The Indicator Amino Acid Oxidation Method, Kelsey M. Smith

Theses and Dissertations--Animal and Food Sciences

The amino acid requirements of growing horses are currently unknown, and studies suggest that threonine is a limiting amino acid in common horse diets. Thus, the objective of this study was to determine the threonine requirement of growing horses fed two different forage to concentrate ratios using the indicator amino acid oxidation method. The study consisted of a high concentrate phase (HC; 60% concentrate and 40% forage) and a high forage phase (HF; 25% concentrate and 75% forage). Within each phase, 6 female yearling Thoroughbred horses were randomly assigned each of 6 dietary treatments in a 6 x 6 Latin …


Effects Of Dietary Amino Acid Supplementation On Measures Of Whole-Body And Muscle Protein Metabolism In Aged Horses, Christine M. Latham Jan 2016

Effects Of Dietary Amino Acid Supplementation On Measures Of Whole-Body And Muscle Protein Metabolism In Aged Horses, Christine M. Latham

Theses and Dissertations--Animal and Food Sciences

Sarcopenia is a condition that is most common in aged animals, and is characterized by the loss of skeletal muscle mass and integrity, and can lead to physical disability and poor quality of life. Since skeletal muscle protein synthesis can be limited by the availability of amino acids, supplementation of limiting amino acids to ameliorate the progression of sarcopenia has become a topic of interest in companion animal research. Although there is some data to support the idea that amino acid supplementation improves maintenance of muscle mass in aged horses, the cellular mechanisms behind that improvement have yet to be …


Relationships Between Behavioral Measures And Productivity In Finishing Beef Cattle, Jasmyn Mimiko Jan 2016

Relationships Between Behavioral Measures And Productivity In Finishing Beef Cattle, Jasmyn Mimiko

Theses and Dissertations--Animal and Food Sciences

The relationship between measures of temperament, growth performance, and social hierarchy in finishing beef cattle were explored in two experiments. In experiment 1, high OCS (objective chute score) steers had periods of significantly higher ADG (P < 0.01), but OCS had no relationship with dominance ranking (P > 0.47). Conversely, slow exit velocity (EV) correlated with higher ranking (P ≤ 0.06), but EV had no relationship with performance (P > 0.37) in a competitive environment. Rank showed no relationship with performance (P > .58). In experiment 2, steers with fast EV had periods of decreased growth (P ≤ .06), intake (P ≤ .06), and gain:feed (G:F; P = 0.02). There were no interactions between …


Cross-Sectional Analysis Of Salivary Cortisol And Cyathostome Infestation In Horses, Danielle L. Keating Jan 2016

Cross-Sectional Analysis Of Salivary Cortisol And Cyathostome Infestation In Horses, Danielle L. Keating

Undergraduate Honors Thesis Projects

With an increase in anthelmintic resistance and decreased efficacy of many commercial dewormers, understanding factors that contribute to parasite infestations in horses is integral to their management. The goal of this study was to look at the potential relationship between parasites and stress response by evaluating salivary cortisol levels and cyathostome egg shedding levels. Using a sample size of n = 200 horses from the state of Ohio, fecal and saliva samples were collected from each horse. Fecal egg counts were performed for each horse with a modified Stoll method, and saliva samples were tested with an enzyme-linked immunosorbent assay …


Quantifying The Success Of Eastern Oyster Pilot Reefs In Brevard County, Florida, Lacie Anderson Jan 2016

Quantifying The Success Of Eastern Oyster Pilot Reefs In Brevard County, Florida, Lacie Anderson

Honors Undergraduate Theses

Crassostrea virginica, the eastern oyster, is a native keystone species that inhabits many coastal and estuarine ecosystems along the Atlantic seaboard. Introduction of the eastern oyster into estuarine areas with limited current populations is gaining popularity as a pro-active approach to improve estuarine water quality. In November 2014 and April 2015, a total of five pilot oyster reef treatments were deployed in Brevard County: bagged adult oysters (grown by community members under their docks through oyster gardening) collected in fall 2014 and spring 2015, bagged clean shell, oyster restoration mats, and empty plots (control). Locations of deployment included a …


Development And Evaluation Of A Habitat Suitability Model For White-Tailed Deer In An Agricultural Landscape, Eric Anstedt Jan 2016

Development And Evaluation Of A Habitat Suitability Model For White-Tailed Deer In An Agricultural Landscape, Eric Anstedt

All Graduate Theses, Dissertations, and Other Capstone Projects

White-tailed deer (Odocoileus virginianus) are an ecological, economical, and socially significant species that occupy a variety of ecoregions. White-tailed deer are mobile habitat generalists that prefer habitats containing woody cover. Deer have successfully adapted to habitat-fragmented, agricultural landscapes. As a result, deer are not uniformly distributed across intensively cultivated areas, which make field surveys difficult with often highly variable spatial data. To increase sampling efficiency (deer observed / sampling effort), the landscape can be stratified based upon preferred habitat types. Habitat suitability models (HSI) have been used to represent hypothesized wildlife-habitat relationships, and therefore the likelihood of deer being observed …


Hawks And Owls, Brian E. Washburn Jan 2016

Hawks And Owls, Brian E. Washburn

Wildlife Damage Management Technical Series

Human-Wildlife Conflicts: Hawks and owls can negatively impact a variety of human interests, including important natural resources, livestock and game bird production, human health and safety, and companion animals. Conflicts between raptors and people generally are localized and often site-specific. However, the economic and social impacts to the individuals involved can be severe. Despite the problems they may cause, hawks and owls provide important benefits and environmental services. Raptors are popular with birdwatchers and much of the general public. They also hunt and kill large numbers of rodents, reducing crop damage and other problems.

Damage Identification

Management Methods

Economics

Species …


The Role Of Host Genotypes In The Susceptibility To Porcine Circovirus Associated Diseases, Ashley Fejfar Jan 2016

The Role Of Host Genotypes In The Susceptibility To Porcine Circovirus Associated Diseases, Ashley Fejfar

UCARE: Research Products

Porcine Circovirus 2 (PCV2) is a small (1.7kb), circular, single-stranded DNA virus. Infected pigs become seropositive between 6-18 weeks of age with 5-15% eventually displaying clinical signs of Porcine Circovirus Associated Diseases (PCVAD). Vaccination is costly given the small percentage of affected pigs. • PCVAD is usually expressed between 90-120 days of age and commonly manifests as Post-weaning Multi-systemic Wasting Syndrome (PMWS), Porcine Dermatitis and Nephropathy Syndrome, Porcine Respiratory Disease Complex, enteritis, reproductive failure and enlarged lymph nodes / lymphoid depletion. • Previous research using genome wide association analysis uncovered two SNPs that explain 12.4% (SSC12) and 3.7% (SSC7) of …


Animal Welfare And Animal Rights, M.E. Rolle Jan 2016

Animal Welfare And Animal Rights, M.E. Rolle

Animal Sentience

This overview of Broom’s book, Sentience and Animal Welfare (2014), considers the role the book could play in the animal rights debate. In a thoroughly researched and objectively presented text, Broom lays out information that could place doubt in the minds of decision-makers. By highlighting not just the ways animals resemble humans, but also the ways humans resemble animals, Broom shines a light on a solidly grey area in the animal rights debate.


Ecology Of Coyotes (Canis Latrans) In The Greater Detroit Area Of Southeastern Michigan, William B. Dodge Jan 2016

Ecology Of Coyotes (Canis Latrans) In The Greater Detroit Area Of Southeastern Michigan, William B. Dodge

Wayne State University Dissertations

Coyote distribution and habitat use, diet and foraging behavior and space use patterns were investigated in the greater Detroit area of southeastern Michigan. We found evidence of coyotes on 24 of 30 (80%) suburban and 7 of 11 (64%) urban plots. Overall fifty-eight percent of coyote evidence was found within edge habitats, with den sites and tracks the only types of evidence found strictly in interior habitats. Land cover around evidence points included more wooded land cover than expected in suburban areas, suggesting the importance of tree cover for coyote occupancy, and more open space and wooded land cover than …


Echinococcus Multilocularis In Foxes And Raccoon Dogs: An Increasing Concern For Baltic Countries, Guna Bagrade, Gunita Deksne, Zanda Ozoliņa, Samantha Jane Howlett, Maria Interisano, Adriano Casulli, Edoardo Pozio Jan 2016

Echinococcus Multilocularis In Foxes And Raccoon Dogs: An Increasing Concern For Baltic Countries, Guna Bagrade, Gunita Deksne, Zanda Ozoliņa, Samantha Jane Howlett, Maria Interisano, Adriano Casulli, Edoardo Pozio

Harold W. Manter Laboratory of Parasitology: Library Materials

Background

In Europe, the life cycle of Echinococcus multilocularis is predominantly sylvatic, involving red foxes (Vulpes vulpes) as the main definitive hosts and rodents such as muskrats and arvicolids as intermediate hosts. The parasite is the etiological agent of human alveolar echinococcosis, a malignant zoonotic disease caused by the accidental ingestion of eggs shed by definitive hosts in their feces. The aims of this study were to investigate the prevalence of E. multilocularis in red foxes and raccoon dogs (Nyctereutes procyonoides) and to study the environmental factors favoring the perpetuation of the parasite in Latvia. …


New Verified Nonindigenous Amphibians And Reptiles In Florida Through 2015, With A Summary Of More Than 152 Years Of Introductions, Kenneth L. Krysko, Louis A. Somma, Dustin C. Smith, Christopher R. Gillette, Daniel Cueva, Joseph A. Wasilewski, Kevin M. Enge, Steve A. Johnson, Todd S. Campbell, Jake R. Edwards, Michael R. Rochford, Ryan Tompkins, Jeffrey L. Fobb, Scott Mullin, Christopher J. Lechowicz, Dallas Hazelton, Alície Warren Jan 2016

New Verified Nonindigenous Amphibians And Reptiles In Florida Through 2015, With A Summary Of More Than 152 Years Of Introductions, Kenneth L. Krysko, Louis A. Somma, Dustin C. Smith, Christopher R. Gillette, Daniel Cueva, Joseph A. Wasilewski, Kevin M. Enge, Steve A. Johnson, Todd S. Campbell, Jake R. Edwards, Michael R. Rochford, Ryan Tompkins, Jeffrey L. Fobb, Scott Mullin, Christopher J. Lechowicz, Dallas Hazelton, Alície Warren

Papers in Herpetology

More nonindigenous species occur in Florida, USA, than any other region worldwide and may threaten many of Florida’s natural resources. The frequency of new reports mandates the need for regular updates. Herein, we use photographic and specimen vouchers in addition to literature records to provide updated information on verified nonindigenous amphibians and reptiles in Florida. Between our most recent summary in 2012 and the end of 2015, 38 additional species are known to have been intercepted (n = 2) or introduced (n = 36). We also update the invasion stage of seven species previously reported from Florida and …


Amblypygids: Model Organisms For The Study Of Arthropod Navigation Mechanisms In Complex Environments?, Daniel D. Wiegmann, Eileen A. Hebets, Wulfila Gronenberg, Jacob M. Graving, Verner P. Bingman Jan 2016

Amblypygids: Model Organisms For The Study Of Arthropod Navigation Mechanisms In Complex Environments?, Daniel D. Wiegmann, Eileen A. Hebets, Wulfila Gronenberg, Jacob M. Graving, Verner P. Bingman

Eileen Hebets Publications

Navigation is an ideal behavioral model for the study of sensory system integration and the neural substrates associated with complex behavior. For this broader purpose, however, it may be profitable to develop new model systems that are both tractable and sufficiently complex to ensure that information derived from a single sensory modality and path integration are inadequate to locate a goal. Here, we discuss some recent discoveries related to navigation by amblypygids, nocturnal arachnids that inhabit the tropics and sub-tropics. Nocturnal displacement experiments under the cover of a tropical rainforest reveal that these animals possess navigational abilities that are reminiscent, …


The Behavioral Ecology Of Amblypygids, Kenneth J. Chapin, Eileen A. Hebets Jan 2016

The Behavioral Ecology Of Amblypygids, Kenneth J. Chapin, Eileen A. Hebets

Eileen Hebets Publications

Arachnologists have uncovered tantalizing details about amblypygid behavioral ecology—the study of the fitness consequences of their behavior. Thus, it is the aim of this review to position Amblypygi as a useful system in which to investigate the principles of animal behavioral ecology. We synthesize amblypygid habitat preference and navigation modalities; predator, prey, parasite, parasitoid, cannibal, and commensal interactions; resource contests and territoriality; mating systems and mate choice; parental investment and sociality; and genetics and genomics as they relate to behavioral ecology. We present ideas for future research in each of these areas and discuss future directions for Amblypygi behavioral ecology …


From Sentience To Science: Limits Of Anthropocentric Cognition, Charukeshi Chandrasekera Jan 2016

From Sentience To Science: Limits Of Anthropocentric Cognition, Charukeshi Chandrasekera

Animal Sentience

Donald Broom’s Sentience and Animal Welfare (2014) is an intellectually and morally engaging book written with radical new concepts in mind. It deals with many issues that are central to the animal welfare debate such as brain complexity, cognitive ability, when in life sentience begins, and how it all affects the way we endorse welfare. It addresses how our insatiable quest to define the uniqueness of our own species has led us to ignore logic and scientific evidence. It also brings greater clarity to these precarious positions and outlines pragmatic approaches to tackling this complex topic of sentience and welfare.


Why Fish Pain Cannot And Should Not Be Ruled Out, Anil K. Seth Jan 2016

Why Fish Pain Cannot And Should Not Be Ruled Out, Anil K. Seth

Animal Sentience

Do fish consciously feel pain? Addressing this question, Key (2016) asks whether the neural mechanisms underlying conscious pain reports in humans can be identified in fish. This strategy fails in three ways. First, non-mammalian consciousness — if it exists — may depend on different mechanisms. Second, accumulating neurophysiological and behavioural evidence, evolutionary considerations, and emerging Bayesian brain theories suggest that if fish can feel at all, they can feel pain. Finally, the qualitative nature of pain and suffering obliges us, via the precautionary principle, to accommodate the possibility of its existence where doubt remains.


A Life Cycle Analysis Of Land Use In Us Pork Production, Greg Thoma, Marty Matlock, Ben Putman, Jasmina Burek Dec 2015

A Life Cycle Analysis Of Land Use In Us Pork Production, Greg Thoma, Marty Matlock, Ben Putman, Jasmina Burek

Food Systems

The goal of this study was to analyze land use in the production of US pork using Life Cycle Assessment (LCA). LCA is a comprehensive methodology for quantitatively analyzing potential environmental impacts associated with complex systems. Identification of processes contributing to high environmental impacts often highlights opportunities for gains in efficiency, which can increase the profitability and sustainability of US pork. The environmental impact category analyzed in this assessment was land use. After reviewing existing information regarding land use in agriculture and livestock production, analysis for US pork production was performed at two scales: cradle-to-grave and cradle-to-farm gate. The cradle-to-grave …


Training A New Trick Using No-Reward Markers: Effects On Dogs’ Performance And Stress Behaviors, Naomi Rotenberg Dec 2015

Training A New Trick Using No-Reward Markers: Effects On Dogs’ Performance And Stress Behaviors, Naomi Rotenberg

Theses and Dissertations

This study explored using no-reward markers (NRMs). Dogs were taught a novel trick. In the IG group dogs’ errors were ignored; in the NRM group they elicited a tone. Performance and stress were evaluated. IG dogs reached higher levels of performance, with no difference in the frequency of stress behaviors.


Production And Economic Efficiencies Of Intensified Cow–Calf Production Management Systems, Jason M. Warner Dec 2015

Production And Economic Efficiencies Of Intensified Cow–Calf Production Management Systems, Jason M. Warner

Department of Animal Science: Dissertations, Theses, and Student Research

The objective of four experiments conducted was to evaluate production and economic efficiencies of intensified cow-calf production management systems. The first experiment tested the effect of calf age at weaning on cow and calf performance and feed utilization at 2 locations. Body weight change from early to conventional weaning time was greater for early-weaned cows. Cow BCS and conception rates were not impacted by weaning. Calf BW at conventional weaning time was greater for conventionally-weaned calves than early-weaned calves at ARDC, but greater for early-weaned than conventionally-weaned calves at PHREC. Calf ADG per unit of total feed energy intake was …