Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (9731)
- TÜBİTAK (5318)
- Department of Primary Industries and Regional Development, Western Australia (2260)
- Utah State University (1810)
- University of Arkansas, Fayetteville (1503)
-
- Morehead State University (1451)
- South Dakota State University (1392)
- University of Texas at Arlington (1042)
- WellBeing International (990)
- Western Kentucky University (767)
- Brigham Young University (764)
- Marshall University (674)
- Old Dominion University (477)
- University of Kentucky (472)
- California Polytechnic State University, San Luis Obispo (345)
- Louisiana State University (296)
- Portland State University (280)
- Eastern Illinois University (261)
- Nova Southeastern University (245)
- University of Texas Rio Grande Valley (220)
- SIT Graduate Institute/SIT Study Abroad (216)
- University of Colorado Law School (214)
- City University of New York (CUNY) (176)
- University of Minnesota Morris Digital Well (176)
- International Centre of Insect Physiology and Ecology (147)
- National Taiwan Ocean University (143)
- The University of Southern Mississippi (135)
- Central Washington University (130)
- University of Rhode Island (129)
- Wright State University (125)
- Keyword
-
- Western Australia (1163)
- Turkey (649)
- Sheep (566)
- Cattle (458)
- Bird watching (333)
-
- Growth (313)
- Birds (268)
- Reproduction (263)
- Conservation (248)
- Beef cattle (243)
- Fisheries (241)
- Fish (228)
- Distribution (221)
- Aquaculture (220)
- Poultry (213)
- Ecology (204)
- Behavior (193)
- Taxonomy (188)
- Climate change (184)
- Human–wildlife conflicts (175)
- Biological sciences (171)
- Nutrition (168)
- Beef (165)
- Dog (161)
- Pigs (158)
- Invasive species (153)
- Morphology (149)
- Ornithology (149)
- Fishery management (144)
- Nebraska (143)
- Publication Year
- Publication
-
- Turkish Journal of Veterinary & Animal Sciences (3209)
- Turkish Journal of Zoology (2109)
- Nebraska Bird Review (1477)
- Roger W. Barbour Slide Collection (1387)
- Department of Animal Science: Faculty Publications (1242)
-
- Nebraska Beef Cattle Reports (1237)
- Jessie Maye Smith Birds and Watchers Columns Collection (1036)
- Journal of the Department of Agriculture, Western Australia, Series 4 (809)
- United States Department of Agriculture Wildlife Services: Staff Publications (605)
- Journal of the Arkansas Academy of Science (538)
- Electronic Theses and Dissertations (501)
- Theses and Dissertations (497)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (488)
- Animal Sentience (454)
- Human–Wildlife Interactions (451)
- Euscorpius (446)
- Proceedings of the North American Crane Workshop (424)
- The Kentucky Warbler (395)
- Fisheries Research Reports (347)
- Fisheries Management Papers (337)
- Graduate Theses and Dissertations (329)
- Range Beef Cow Symposium (328)
- Department of Animal Science: Dissertations, Theses, and Student Research (299)
- University of Nebraska State Museum: Mammalogy Papers (284)
- United States Fish and Wildlife Service: Publications (275)
- Nebraska Swine Reports (261)
- Brigham Young University Science Bulletin, Biological Series (260)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (257)
- Masters Theses (254)
- Roman L. Hruska U.S. Meat Animal Research Center: Reports (244)
- Publication Type
Articles 2371 - 2400 of 36382
Full-Text Articles in Entire DC Network
Increasing Soy Products Inclusion In Swine Diets To Improve Growth Performance, Health, And Pork Quality, Ashir Foreman Atoo
Increasing Soy Products Inclusion In Swine Diets To Improve Growth Performance, Health, And Pork Quality, Ashir Foreman Atoo
Electronic Theses and Dissertations
Despite its excellent nutritional profile, soybean meal (SBM) is limited in nursery pig diets due to its anti-nutritional factors (ANFs), which young pigs tolerate poorly. In the first study, strategies to mitigate these effects included supplementation with enzymes, alone or with acidifiers. A total of 240 weaned pigs (5.9 ± 0.8 kg average body weight [BW]) were assigned in randomized complete block design to five dietary treatments: low, medium, or high SBM diets, high SBM with multienzyme, and high SBM with multienzyme plus acidifier. Diets were fed in three phases: phase 1 (0–1 weeks), phase 2 (1–3 weeks), and phase …
Translocations Of North American Bison Across Large Climatic Gradients: Impacts On Thermoregulation, Body Size, And Helmintic Infection, Hayden Wolfe
Electronic Theses and Dissertations
Every year, one-eighth of all North American bison (Bison bison) are translocated, often across large climatic gradients. Over the last 16 years bison have been translocated from Wind Cave National Park in South Dakota to establish six herds across the United States central grasslands in Iowa, Missouri, Illinois, Indiana, and Kansas. Influence of climatic gradients on herd-level thermoregulation, body size, and helmintic infection were evaluated. Overall, 1174 thermal images and 1050 fecal samples were collected between 2021 and 2023. Physiological heat flux was used to measure thermoregulation, asymptotic body mass (ABM) was used for body size, and helminth genera abundance …
Beef Hot Carcass Weight Influences Proteolysis, Clay J. Carlson
Beef Hot Carcass Weight Influences Proteolysis, Clay J. Carlson
Electronic Theses and Dissertations
The objective of this thesis was to determine the influence of beef hot carcass weight on proteolysis to better understand early postmortem proteolysis. Beef tenderness formation is influenced by various factors, such as temperature decline and proteolysis. Limited focus has been given to the effects of carcass weight on proteolysis. This study aimed to investigate the influence of increased beef hot carcass weight (HCW) on proteolysis of four muscles (serratus ventralis, longissimus thoracis, longissimus lumborum, and semitendinosus) during early postmortem aging times. Beef steers (n =12) were harvested and categorized into two weight groups: lightweight (LW; HCW = 349 ± …
Improving Stream Connectivity In South Dakota, Colton Rainier Curtis
Improving Stream Connectivity In South Dakota, Colton Rainier Curtis
Electronic Theses and Dissertations
Stream connectivity is crucial for fish movement and genetic diversity in fragmented landscapes. Road-crossings often act as barriers, disrupting hydrology and isolating fish populations. The Southeast Aquatic Resources Partnership (SARP) has developed rapid road-crossing assessment protocols and tools to prioritize restoration projects. However, managers lack tools for planning, directing, and initiating roadcrossing assessments. Managers also require modeling approaches to effectively identify and monitor road-crossings across dynamic stream networks. Presented here is a case study offering a roadmap for effective implementation of collaborative road-crossing assessments and prioritization of remediation projects, alongside an exploration of predictive modeling approaches to identify problematic crossings …
The Blackfeet Nation’S Bison Conservation Herd Management Plan, Brandon Kittson
The Blackfeet Nation’S Bison Conservation Herd Management Plan, Brandon Kittson
Graduate Student Theses, Dissertations, & Professional Papers
This document is meant to act as a guide to understanding Bison reintroduction on the Blackfeet reservation and serve as a resource for bison management. This report and plan will: 1) review bison ecology and the history of reintroduction efforts on the reservation; 2) identify potential issues and barriers to successful reintroduction; 3) present a summary of current land policies and patterns of land use on the reservation; and 4) provide recommendations for dealing with those potential issues. Recommendations will be based on analyses of previous knowledge of bison and bison behavior.
Comparative Morphology And Ultrastructure Of Olfactory Epithelia In Plethodontid Salamanders: Effect Of Life History Variation, Emily Gremling
Comparative Morphology And Ultrastructure Of Olfactory Epithelia In Plethodontid Salamanders: Effect Of Life History Variation, Emily Gremling
Cal Poly Humboldt theses and projects
Many amphibian species rely on olfaction for locating prey and for social interactions during different life stages. Despite the importance of the olfactory system, research on its structure has been taxonomically limited. The most diverse family of salamanders, the Plethodontidae, has been largely excluded from research efforts to describe olfactory morphology. Although several histological studies have been conducted, no studies have yet looked at morphology at the level of ultrastructure using electron microscopy. The primary goal of my research was to examine olfactory morphology and ultrastructure in plethodontid species with a range of life history strategies, to better understand the …
Temperature Driven Variability In Bull Kelp (Nereocystis Luetkeana) Early Life Stages: A Comparative Study Of California Populations, Marzia Fattori
Temperature Driven Variability In Bull Kelp (Nereocystis Luetkeana) Early Life Stages: A Comparative Study Of California Populations, Marzia Fattori
Cal Poly Humboldt theses and projects
This study investigated the effects of elevated temperatures on the reproductive and developmental stages of Nereocystis luetkeana, a crucial brown macroalgae found along the western coast of North America. My objectives were to 1) evaluate the impact of increasing temperature on the abundance of gametophytes from various sites, 2) determine the length of gametophytes that were affected by temperature on day 10 of culture, 3) assess the presence or absence of oocytes, sporophytes (young vs. multicellular), and abnormal cells, to understand the reproductive and stress responses to higher temperatures, and 4) determine if there is variation among early developmental …
Transgenerational Effects Of Stress On The Plasma Proteome Of A Marine Mammal, Emily Voelkner
Transgenerational Effects Of Stress On The Plasma Proteome Of A Marine Mammal, Emily Voelkner
University of the Pacific Theses and Dissertations
The physiological stress response enables animals to respond to changes in their environment, and is mediated by the hypothalamic-pituitary-adrenal (HPA) axis in mammals. Increased activation of the HPA axis by repeated stress during critical life stages like reproduction could affect fitness. Information about a stressor can be communicated to offspring via hormone signals prenatally, or postnatally via milk, and affect offspring development and stress reactivity. Experimentally activating the HPA axis by adrenocorticotropic hormone (ACTH) administration results in the synthesis of the major glucocorticoid hormone cortisol, which has well-studied far-reaching effects on growth, metabolism, and immunity. Beyond cortisol levels alone, biomarkers …
Behavioral Activity Budget Of Grower Beetal Kids Offered Total Mixed Ration Under Stall-Fed System, Priya Dhattarwal, Mandeep Singla, Sandeep Kaswan, Ravinder Singh Grewal, Neeraj Kashyap, Dalpat Singh Malik
Behavioral Activity Budget Of Grower Beetal Kids Offered Total Mixed Ration Under Stall-Fed System, Priya Dhattarwal, Mandeep Singla, Sandeep Kaswan, Ravinder Singh Grewal, Neeraj Kashyap, Dalpat Singh Malik
Turkish Journal of Veterinary & Animal Sciences
This study investigates the behavioral activities of grower Beetal kids fed in a conventional method-control group manner orgiven total mixed ration (TMR) (i.e. hay-based - T1 and green fodder-based - T2). Twenty-four weaned Beetal kids were enrolled andrandomly distributed into 3 groups based on their body weight, sex, and age. Behavioral observations were recorded 30 min after givingexperimental ration to the kids using the scan sampling method for 1 h, which inferred time spent eating normally, eating with forelegson the cage, and eating with forelegs on the feeders; standing idle and urination were significantly higher in the control group than …
Efficacy Of Bacillus-Based Probiotic And Nspase Supplementation On Growth Performance And Gut Health Of Broilers Fed High Level Of Palm Kernel Meals Under High Stocking Density, Nurul Imawati
Chulalongkorn University Theses and Dissertations (Chula ETD)
Palm kernel meal (PKM) is a by-product of the oil palm industry with significant potential in poultry feed, although its high content of anti-nutritional factors limits its utilization. It is hypothesized that dietary supplementation with fiber-degrading enzymes and probiotics may enhance the use of PKM. This study investigated the effects of Bacillus-based probiotics (PRO) and non-starch polysaccharide enzymes (NSPase, mannanase, and xylanase) on broiler performance and gut health when fed a high level of PKM under high stocking density (HSD, Experiment 1) and normal stocking density (NSD, Experiment 2). In Experiment 1, 4,480 mixed-sex Ross308 broilers were allocated to eight …
Comparative Study On Reproductive Behavior Of Three Thai Indigenous Apple Snails Pila Celebensis (Quoy & Gaimard, 1834), P. Pesmei (Morlet, 1889) และ P. Virescens (Deshayes, 1824), Supunya Annate
Chulalongkorn University Theses and Dissertations (Chula ETD)
Species of the Thai indigenous apple snail genus Pila Röding, 1798 are undergoing population decline. Accordingly, their conservation is needed, but the lack of knowledge of their reproductive biology is a significant obstacle to implementing conservation measures. Therefore, this study analyzed the mating and egg-laying behavior of three of the five Thai indigenous apple snails: P. celebensis, P. pesmei, and P. virescens using continuous video recording under laboratory conditions. In addition, the egg-laying behavior of P. virescens in a seminatural habitat was observed in the rainy season of 2023. Moreover, their egg, egg mass, incubation time, and hatchling characteristics were …
Studying Redtail And Silver Surfperch In Sandy Beach Surf Zones With Mpas In Humboldt County, California, Usa, Noah G. Angell
Studying Redtail And Silver Surfperch In Sandy Beach Surf Zones With Mpas In Humboldt County, California, Usa, Noah G. Angell
Cal Poly Humboldt theses and projects
The sandy beach surf zone (SBSZ) represents an ecologically, economically, and culturally important marine habitat around the world. Despite its significance, the SBSZ has been historically underrepresented in marine and coastal ecology research. This in turn has caused many inshore marine species that prefer this habitat to be largely ignored. Two particular species, the Redtail surfperch Amphistichus rhodoterus and the Silver surfperch Hyperprosopon ellipticum, have not been well studied in the PNW region . There are merely three studies conducted on the Redtail surfperch in the Pacific Northwest region and the Silver surfperch has received even less research attention with …
Comparing Alternative Developmental Modes: Structure And Gene Expression In The Olfactory System Of Plethodontid Salamanders, Giuseppina S. Lanzilli
Comparing Alternative Developmental Modes: Structure And Gene Expression In The Olfactory System Of Plethodontid Salamanders, Giuseppina S. Lanzilli
Cal Poly Humboldt theses and projects
The olfactory system of extant amphibians changes as the animal transitions from a fully aquatic to a terrestrial lifestyle at metamorphosis. Cellular morphology of the nose and expression patterns of olfactory genes in the nasal cavity have been examined for a variety of frogs and salamanders, but among plethodontid salamanders, molecular data are available only for Plethodon shermani. Using standard histology and micro-CT reconstruction, I investigated the structure of the olfactory organs of larvae, juveniles, and adults of six plethodontid species, with terrestrial, streamside, semiaquatic, and aquatic adults. The overall structure of the olfactory cavity was generally similar across …
Evaluating The Utility Of Tracers To Characterize Environmental Dna Transport And Inform Detection Of Fishes In Small Streams, Gavin B. Bandy
Evaluating The Utility Of Tracers To Characterize Environmental Dna Transport And Inform Detection Of Fishes In Small Streams, Gavin B. Bandy
Cal Poly Humboldt theses and projects
This study was motivated by the need to develop a noninvasive and highly sensitive monitoring tool for determining local occupancy of an endangered aquatic species To make inference into the occupancy of fishes within small stream sites, we developed a method to determine whether environmental DNA (eDNA) concentrations from a target species were elevated relative to a tracer, formulated to mimic eDNA and introduced at a single location. We examined patterns in the observed distribution of the tracer to account for the effects of site-specific transport processes and sampling on distributions of naturally occurring eDNA at small spatial scales (400 …
Effects Of Habitat Selection And Individual Quality On The Reproductive Success Of Barn Owls (Tyto Furcata), Jaime E. Carlino
Effects Of Habitat Selection And Individual Quality On The Reproductive Success Of Barn Owls (Tyto Furcata), Jaime E. Carlino
Cal Poly Humboldt theses and projects
The hypothesis of adaptive breeding habitat selection proposes congruence between the evolved selection of habitats and fitness components such as reproductive success. However, mismatches between habitat selection and observed fitness outcomes are not unusual and can arise for multiple reasons. Variation in individual qualities of animals has also been found to affect reproduction and survival. I examined associations between barn owl nest box selection, reproductive output, and plumage characteristics previously shown to correspond to individual quality. I found that barn owls selected tall nest boxes made of wood, mounted high off the ground, and with increased proportions of grassland around …
Diet, Growth, And Survival Of Juvenile Coho Salmon (Oncorhynchus Kisutch) In Off-Channel Restoration Projects In Humboldt Bay Tributaries, Katherine Rose Stonecypher
Diet, Growth, And Survival Of Juvenile Coho Salmon (Oncorhynchus Kisutch) In Off-Channel Restoration Projects In Humboldt Bay Tributaries, Katherine Rose Stonecypher
Cal Poly Humboldt theses and projects
Anthropogenic degradation of off-channel floodplain habitats has contributed to widespread declines in Pacific salmonid populations. These habitats are critical to the survival and growth of juvenile Coho Salmon during their first year of life. Restoring connectivity between mainstem and floodplain habitats could provide juvenile salmonids access to a mosaic of heterogenous foraging opportunities, with important consequences for salmonid growth and survival. I analyzed the diet, growth, and survival of juvenile Coho Salmon rearing in three restored off-channel ponds and adjacent mainstem habitats in Humboldt Bay tributaries to evaluate project performance. Juvenile Coho Salmon diet composition was significantly different among sites …
Molecular Characterization Of Fecundity-Related Gene Regions In Some Of Türkiye’S Native Sheep Breeds, Ramazan Aymaz, Fulya Özdi̇l, Yalçın Yaman
Molecular Characterization Of Fecundity-Related Gene Regions In Some Of Türkiye’S Native Sheep Breeds, Ramazan Aymaz, Fulya Özdi̇l, Yalçın Yaman
Turkish Journal of Veterinary & Animal Sciences
In this study, the BMP15 and GDF9 gene regions were examined through DNA sequencing in some native sheep breeds of Türkiye (Kıvırcık, Karacabey Merino, Chios, Gökçeada, Çine Çaparı, Awassi, and Karakacan). In the BMP15 exon 2 region, two single nucleotide polymorphisms (SNPs) were identified: one synonymous SNP, P248P (proline/proline), and one nonsynonymous SNP, L251P (leucine/proline), resulting in a missense mutation. In the GDF9 exon 1 region, only a nonsynonymous SNP, R87H (histidine/ arginine), was found. In the GDF9 exon 2 region, four SNPs were identified: two nonsynonymous SNPs, E241K (glutamate/lysine) and V332I (valine/isoleucine), and two synonymous SNPs, L159L (leucine/leucine) and …
The Stereological And Morphometrical Investigation Of Pars Lumbalis Of The Spinal Cord Innew Zealand Rabbit, Berna Duman, İftar Gürbüz
The Stereological And Morphometrical Investigation Of Pars Lumbalis Of The Spinal Cord Innew Zealand Rabbit, Berna Duman, İftar Gürbüz
Turkish Journal of Veterinary & Animal Sciences
In the study, 12 (6 females, 6 males) healthy adult New Zealand rabbits were used to examine the morphometrical andstereological values. White matter, gray matter and total segment volume of the segments in the pars lumbalis were calculated byCavalieri’s principle. The findings were grouped according to sexand statistically evaluated. As a result, 38% of the length of the spinalcord in rabbits belonged to the pars lumbalis. The morphometric parameters were not statistically different between male and femalerabbits (p > 0.05). The segment with the biggest volume was L5. White matter’s greatest volume was the L4 segment. The volume of graymatter was …
Identification Of Dermatophytes And Comparative Efficacy Of Topical Antifungals Fortreating Canine Dermatophytosis, Arun Prakash Vadakkoot, Rathish Ramachandran Latha, Neeraja Eramthottil, Lijo John, Bipin Kuriyedath Chitharalil, Deepa Padinjare Meleppat
Identification Of Dermatophytes And Comparative Efficacy Of Topical Antifungals Fortreating Canine Dermatophytosis, Arun Prakash Vadakkoot, Rathish Ramachandran Latha, Neeraja Eramthottil, Lijo John, Bipin Kuriyedath Chitharalil, Deepa Padinjare Meleppat
Turkish Journal of Veterinary & Animal Sciences
Dermatophytosis is a potentially zoonotic superficial skin infection caused by keratinophilic fungi. Identification ofdermatophytes aids in understanding the epidemiology of infections and finding out better treatment modalities. The study aimed toidentify dermatophytes in dogs and compare the effectiveness of three different topical drugs for treating dermatophytosis. Molecularidentification of dermatophyte isolates obtained on culturing was done by restriction fragment length polymorphism of the ampliconobtained by polymerase chain reaction of the Internal Transcribed Spacer (ITS) region of the recombinant DNA. Thirty of the positivecases were divided into three groups, Group I was treated with shampoo containing 2% each of miconazole chlorhexidine, Group …
Determining The Effects Of Different Bypass Fat Supplementation On Performance, Milkyield, And Milk Composition Of Anatolian Buffaloes, Sezer Öz, Seher Küçükersan
Determining The Effects Of Different Bypass Fat Supplementation On Performance, Milkyield, And Milk Composition Of Anatolian Buffaloes, Sezer Öz, Seher Küçükersan
Turkish Journal of Veterinary & Animal Sciences
This study aimed to explore the effects of animal bypass fat (ABF) and palm bypass fat (PBF) added to the rations of Anatolianbuffaloes on dry matter consumption, feed conversion ratio, milk yield, some milk components, and parameters. A total of 21 heads ofbuffalo in the early lactation period; milk yield averages, lactation periods, lactation numbers, live weights, and ages were selected anddivided into three experimental groups, each consisting of 7 buffaloes. The experiment was conducted according to the crossover trialpattern. There was no statistically significant difference between the groups in terms of dry matter consumption and feed conversionratio (p > 0.05). …
Comparison Of Nonlinear Models For Predicting Live Weight Growth Curves In Lambproduction Of Kıvırcık And Karacabey Merino, Vasfi̇ye Kader Esen, Orhan Karadağ, Cengi̇z Elmaci, Seli̇m Esen
Comparison Of Nonlinear Models For Predicting Live Weight Growth Curves In Lambproduction Of Kıvırcık And Karacabey Merino, Vasfi̇ye Kader Esen, Orhan Karadağ, Cengi̇z Elmaci, Seli̇m Esen
Turkish Journal of Veterinary & Animal Sciences
To achieve sustainable lamb production, it is crucial to determine the optimal slaughter age for maximum economic efficiencyand have a comprehensive understanding of breed characteristics. This study focuses on evaluating different nonlinear models todetermine the optimal slaughter age for Karacabey Merino and Kıvırcık lambs, renowned for their early development and superiormeat quality, respectively. The dataset comprised age-related live weight data from 98 lambs, including 36 female and 15 male Kıvırcıklambs, as well as 33 female and 14 male Karacabey Merino lambs. Six models, namely, negative exponential, Brody, Gompertz, logistic,Bertalanffy, and Richards were utilized to analyze the data. The model parameters …
Predictors On Mental Health Of Owning Cats And Dogs, Çağri Çağlar Si̇nmez, Ahmet Meti̇n, Emre Tüfekçi̇, Ali̇ İlteri̇ş Aykun, Vehbi̇ Güneş
Predictors On Mental Health Of Owning Cats And Dogs, Çağri Çağlar Si̇nmez, Ahmet Meti̇n, Emre Tüfekçi̇, Ali̇ İlteri̇ş Aykun, Vehbi̇ Güneş
Turkish Journal of Veterinary & Animal Sciences
The common consensus is that owning pets affects human health positively. However, the effects of owning pets on mental health are still controversial. Therefore, the present study aimed to determine the possible associated with depression, anxiety, stress, and owning cats and dogs in Türkiye. Additionally, the potential impact of personality traits on this relationship was examined. This study included 636 participants, of whom 52% were female (Mage = 33.02, SD = 15.78). Data was obtained by using a DASS-21 and the Big Five Personality Inventory. The findings revealed that owning cats and dogs was a promotive factor against depression (DE) …
Determination Of Yield Nutrient Contents And In Vitro Digestibility Of Some Triticale Varieties Harvested At Different Maturity Stages, Şevket Evci̇, Kami̇l Kara, Mehmet Demi̇rci̇
Determination Of Yield Nutrient Contents And In Vitro Digestibility Of Some Triticale Varieties Harvested At Different Maturity Stages, Şevket Evci̇, Kami̇l Kara, Mehmet Demi̇rci̇
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to determine the contribution of growth performance, nutrient content and digestibility of different triticale varieties to ruminant diets and to indirectly assist farmers in feed production. The experiment utilized 5 triticale varieties. The study was designed as a randomized complete block design with split plots and 3 replications. The digestibility values were determined in vitro after 48 hours of incubation using the Daisy Ankom® digester. Rumen liquid was obtained from dairy cows slaughtered at the 'Yeşil Vadi Et Entegre' facility. Nutrient values, in vitro dry matter digestibility, and yield traits of forages were determined. …
Longevity In Afrikaner Cattle: A Survival Analysis, Allison M. Bot Steffl
Longevity In Afrikaner Cattle: A Survival Analysis, Allison M. Bot Steffl
Electronic Theses and Dissertations
The Afrikaner breed of cattle is indigenous to South Africa and due to their hardiness was once the most popular breed amongst farmers. The objectives for this study were to: (1) estimate environmental effects (age at first calving, season) and (2) genetic variance affecting longevity in Afrikaner cattle using survival analysis and a Weibull model and (3) evaluate the effect of the Infusion Project on longevity utilizing a Cox model. For the first objective, age at first calving impacted longevity as younger age at first calving was associated with decreased longevity. Season of birth and year of birth also impacted …
Methods For Optimizing Detection And Evaluating Habitat Use Of North American River Otters In South Dakota, Jessica Speiser
Methods For Optimizing Detection And Evaluating Habitat Use Of North American River Otters In South Dakota, Jessica Speiser
Electronic Theses and Dissertations
North American river otters (Lontra canadensis) play a critical role as an apex predator in riverine ecosystems. A challenging species to survey using traditional methods, they remain understudied in non-forested regions, such as the Northern Great Plains, where habitat degradation and landscape fragmentation may reduce habitat quality and availability and disrupt landscape connectivity. This thesis aims to improve detectability and investigates the habitat use of river otters in South Dakota to better understand habitat needs of otters and improve their continued recovery and management. My first chapter provides a brief overview of river otters and their ecological roles in freshwater …
Respiratory Disease In Bighorn Sheep: A Varied Investigation Of Immunization, Transmission, And Detection, Katelin Frerichs
Respiratory Disease In Bighorn Sheep: A Varied Investigation Of Immunization, Transmission, And Detection, Katelin Frerichs
Electronic Theses and Dissertations
Respiratory disease has historically been recognized as a limiting factor to wild bighorn sheep (Ovis canadensis) herds throughout North America with epizootics resulting in large-scale die offs and reductions in recruitment. The primary etiologic agent associated with pneumonia outbreaks in bighorn sheep is Mycoplasma ovipneumoniae. This bacterial pathogen is frequently carried asymptomatically by domestic sheep (Ovis aries) and goats (Capra hircus); however, when these domestic hosts come in contact with and spread this pathogen to bighorns, the disease can cause epizootics and large-scale mortality. Domestic sheep strains are more commonly detected in bighorn sheep than domestic goat strains, and previous …
What's In A Name? Standardization Of Vernacular Names For Trichechus Manatus, A. A. Mignucci-Giannoni, Daniel Gonzalez-Socoloske, Anmari Alvarez-Alemán, Jamie Aquino, D. Caicedo-Herrera, Delma Nataly Castelblanco-Martínez, Diane Claridge, M. Fabiola Corona-Figueroa, Adolphe O. Debrot, Benoit De Thoisy, Carlos Espinoza-Marin, J. Galves, Eddy Garcia-Alfonso, Hector M. Guzman, Jalaludin Ahmad Khan, Jeremy J. Kiszka, Fabia De Oliveira Luna, Miriam Marmontel, Leon David Olivera-Gomez, Christine O'Sullivan, James A. Powell, Enrique Pugibet-Bobea, Indranee Roopsind, Carlos J. Silva
What's In A Name? Standardization Of Vernacular Names For Trichechus Manatus, A. A. Mignucci-Giannoni, Daniel Gonzalez-Socoloske, Anmari Alvarez-Alemán, Jamie Aquino, D. Caicedo-Herrera, Delma Nataly Castelblanco-Martínez, Diane Claridge, M. Fabiola Corona-Figueroa, Adolphe O. Debrot, Benoit De Thoisy, Carlos Espinoza-Marin, J. Galves, Eddy Garcia-Alfonso, Hector M. Guzman, Jalaludin Ahmad Khan, Jeremy J. Kiszka, Fabia De Oliveira Luna, Miriam Marmontel, Leon David Olivera-Gomez, Christine O'Sullivan, James A. Powell, Enrique Pugibet-Bobea, Indranee Roopsind, Carlos J. Silva
Faculty Publications
Trichechus manatus is one of 3 recognized extant species of manatees of the mammalian Order Sirenia. Currently, it is known by various vernacular names, none of which are descriptive of its biology and known distribution. This lack of standardization has led to confusion and miscommunication, hindering conservation efforts for this species. We propose standardizing the vernacular names used to refer to the species and its 2 subspecies based on appropriate geographical characterization in English, Spanish, French, Dutch, and Portuguese, respectively: “American Manatee”, “Manatí de las Américas”, “Lamantin d’Amérique”, “Amerikaanse Lamantijn”, and “Peixe-boi das Américas” for T. manatus; “Florida Manatee”, “Manatí …
The Genera Metalycaeus And Dicharax (Caenogastropoda, Cyclophoroidea, Alycaeidae) In Bhutan, With The Description Of 16 New Species, Edmund Gittenberger, Choki Gyeltshen, Kezang Tobgay, Sherub Sherub
The Genera Metalycaeus And Dicharax (Caenogastropoda, Cyclophoroidea, Alycaeidae) In Bhutan, With The Description Of 16 New Species, Edmund Gittenberger, Choki Gyeltshen, Kezang Tobgay, Sherub Sherub
Research outputs 2022 to 2026
Shells of the genera Metalycaeus and Dicharax from Bhutan are identified or described as representing new species. For Metalycaeus 6 species are recognized, 4 of which are known from Bhutan only and considered new to science, viz. M. geduensis E. Gittenberger & Sherub, spec. nov., M. karmademaae E. Gittenberger, Choki Gyeltshen & Kezang Tobgay, spec. nov. M. posteriobulbus E. Gittenberger & Sherub, spec. nov. and M. umbidistinctus E. Gittenberger & Choki Gyeltshen, spec. nov. In the more speciose genus Dicharax 16 species are classified, 12 of which as endemic and new to science, viz. D. aspidentatus E. Gittenberger, Choki Gyeltshen …
Trends In Monitoring Of Australia’S Threatened Birds (1990–2020): Much Improved But Still Inadequate, Simon J. Verdon, Robert A. Davis, Ayesha Tulloch, Sarah M. Legge, David M. Watson, John C. Z. Woinarski, G. Barry Baker, Joris Driessen, Hayley M. Geyle, Hugh Possingham, Stephen T. Garnett
Trends In Monitoring Of Australia’S Threatened Birds (1990–2020): Much Improved But Still Inadequate, Simon J. Verdon, Robert A. Davis, Ayesha Tulloch, Sarah M. Legge, David M. Watson, John C. Z. Woinarski, G. Barry Baker, Joris Driessen, Hayley M. Geyle, Hugh Possingham, Stephen T. Garnett
Research outputs 2022 to 2026
Monitoring is vital to conservation, enabling conservation scientists to detect population declines, identify threats and measure the effectiveness of interventions. However, not all threatened taxa are monitored, monitoring quality is variable, and the various components of monitoring are likely to differ in their rates of improvement over time. We assessed the presence of monitoring and monitoring quality, using a range of metrics, for all Australia’s threatened bird taxa from 1990 to 2020 (four assessments spanning 30 years). We used our assessments to understand decadal trends in the number of taxa monitored; monitoring quality; and the groups that conduct monitoring. The …
How Does A Global Climate Cycle Affect The Reproductive Output Of A Neotropical Migratory Bird?, Abby K. Bressette, Emma Cummings, Daniel Albrecht-Mallinger, Lesley Bulluck
How Does A Global Climate Cycle Affect The Reproductive Output Of A Neotropical Migratory Bird?, Abby K. Bressette, Emma Cummings, Daniel Albrecht-Mallinger, Lesley Bulluck
UROP Posters
El-Niño Southern Oscillation (ENSO) causes regional changes in climate and has been found to have varying effects on the survival, fecundity, and recruitment of migratory songbirds. This study seeks to better understand the effect of ENSO on the fecundity of Virginia-breeding Prothonotary warbler (Protonotaria citrea; PROW), a neotropical migratory songbird. PROW breed in the Eastern United States and spend the non-breeding season primarily in Panama and Colombia. Ongoing research in Virginia has found a positive relationship between spring precipitation and predicted number of PROW fledgelings during La Niña, but the opposite during El Niño. To better understand this relationship, we …