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Articles 31 - 60 of 43901
Full-Text Articles in Entire DC Network
Three New Species Of Genus Scorpiops Peters, 1861 From Tibet, China (Scorpiones: Scorpiopidae), With Implications For The Diagnostic Values Of Qualitative Characters, Victoria Tang, Kaichen Ouyang, Zhenbang Liu, František Šťáhlavský
Three New Species Of Genus Scorpiops Peters, 1861 From Tibet, China (Scorpiones: Scorpiopidae), With Implications For The Diagnostic Values Of Qualitative Characters, Victoria Tang, Kaichen Ouyang, Zhenbang Liu, František Šťáhlavský
Euscorpius
Three new species of genus Scorpiops Peters, 1861 are described from Tibet Autonomous Region, China. S. deshpandei sp. n. is described based on an adult male and an immature pair collected from Mêdog County, Nyingchi, with additional molecular evidence substantiating its validity against S. longimanus Pocock, 1893. S. kovariki sp. n. is featured by a single adult female from Zayü. This species is only weakly supported by its genetic distance from S. jendeki Kovařík, 1994, but empirical understanding of the morphological variation in Scorpiops species motivated us to consider them as distinct. S. matthewi sp. n. is based on …
Preventing And Managing Equine Gastric Ulcer Syndrome, Kylie Bell, Karl Hoopes
Preventing And Managing Equine Gastric Ulcer Syndrome, Kylie Bell, Karl Hoopes
All Current Publications
Current industry trends regarding equine management practices largely contribute to the development of equine gastric ulcer syndrome (EGUS). Research on effective medical management exists; however, we lack studies on the efficacy of equine-welfare-minded solutions. This fact sheet reviews current literature, including diagnosing, treating, and preventing EGUS. It also provides a general overview of the natural equine, promoting a greater understanding of the connection between strategies to prevent and manage EGUS.
Euscorpius Gulhanimae Sp. N. From The Konya Province, Turkey (Scorpiones: Euscorpiidae), Ersen A. Yağmur
Euscorpius Gulhanimae Sp. N. From The Konya Province, Turkey (Scorpiones: Euscorpiidae), Ersen A. Yağmur
Euscorpius
A new species Euscorpius gulhanimae sp. n. is described from southern Turkey (Beyşehir District of Konya Province). It differs by trichobothrial numbers in Pv and et series; these numbers are the highest in all species of Euscorpius in Turkey. E. gulhanimae sp. n. has light greyish yellow mesosoma, dark reddish-brown chela and dark brown metasomal segments III-V; the new species is distinguished by this two-colored feature from all Euscorpius species. With this description, the known number of species in the family Euscorpiidae in Turkey is increased to 21.
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxxiii. Three New Species Of Gint From Ethiopia And Somaliland (Buthidae), František Kovařík, Hassan Sh A. Elmi, František Šťáhlavský
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxxiii. Three New Species Of Gint From Ethiopia And Somaliland (Buthidae), František Kovařík, Hassan Sh A. Elmi, František Šťáhlavský
Euscorpius
Three new species, Gint sahil sp. n. from Somaliland and Gint abshiri sp. n. and G. derbiae sp. n. from Ethiopia are described and compared with other species of the genus. Additional information is provided on the taxonomy and distribution of the genus Gint, fully complemented with color photos of specimens of the new species, as well as of their habitats. Furthermore, alongside the analyses of external morphology and hemispermatophores, we have provided description of the karyotype of G. abshiri sp. n. This species exhibits karyotype with 2n=27. Included is distribution map and a key for the genus Gint …
Measuring Agricultural Means Of Influence On Young Adults Via Instagram In The United States, Samantha Bennett, David S. Martin, Jason T. Sawyer, Soren P. Rodning, Don Mulvaney
Measuring Agricultural Means Of Influence On Young Adults Via Instagram In The United States, Samantha Bennett, David S. Martin, Jason T. Sawyer, Soren P. Rodning, Don Mulvaney
Journal of Applied Communications
Notable differences have been observed in how society perceives and understands the agricultural industry. Consumers today are concerned with how their food is raised and produced, and drastic changes in how information is gathered regarding those subjects have occurred due to the rapid development of digital media. As a result, the agricultural industry has fallen behind in ensuring accurate information is shared about the daily work done to feed the world. A form of digital media that has infiltrated the daily lives of society is social media (SM). This study sought to evaluate the impact established agricultural social media influencers …
Effects Of Evolved Migration Strategy, Seasonal Flexibility, And Endurance Flight On Songbird Mitochondrial Bioenergetics, Soren Zachary Coulson
Effects Of Evolved Migration Strategy, Seasonal Flexibility, And Endurance Flight On Songbird Mitochondrial Bioenergetics, Soren Zachary Coulson
Electronic Thesis and Dissertation Repository
Migratory birds make large-scale movements using flight twice per year, which are physiologically challenging due to high energetic costs and oxidative damage from reactive oxygen species (ROS). Muscle mitochondria play central roles in energy supply and ROS homeostasis during exercise, but the role of mitochondrial function in overcoming the demands of migratory flight is presently unclear. In this dissertation, I explore how mitochondrial function is modulated in three contexts relevant to avian migration: seasonal flexibility, endurance flight and evolved variation in migration strategy. For my first aim, I compared flight muscle mitochondrial respiration and ROS emission between a migratory and …
Revision Of The Genus Scorpio In Jordan, With A Description Of A New Genus And Three New Species (Scorpiones: Scorpionidae), Bassam Abu Afifeh, Ersen A. Yağmur, Mohammad Al–Saraireh, Zuhair Amr
Revision Of The Genus Scorpio In Jordan, With A Description Of A New Genus And Three New Species (Scorpiones: Scorpionidae), Bassam Abu Afifeh, Ersen A. Yağmur, Mohammad Al–Saraireh, Zuhair Amr
Euscorpius
Several new Scorpio populations are studied from various habitats in Jordan, including specimens previously identified as Scorpio kruglovi Birula, 1910 and S. fuscus (Ehrenberg, 1829). A new scorpionid genus, Jordanius gen. n. is described, mainly differentiated from the genus Scorpio Linné, 1758 by the elongation and heavy patterns of granulation of chela manus, and granulated chela fingers. Scorpio granulomanus Al-Saraireh et al., 2023 is transferred to the new genus, and Jordanius maysaraensis gen. et sp. n. is described. Also, Scorpio jordanensis sp. n. and S. wahbehi sp. n. are described. Detailed …
Investigation Of P27 Tumor Suppressor Gene (Cdkn1b) Polymorphisms In Dogs With Malignant Mammary Tumors, Gizem Kırmızıoğlu, Iraz Akış
Investigation Of P27 Tumor Suppressor Gene (Cdkn1b) Polymorphisms In Dogs With Malignant Mammary Tumors, Gizem Kırmızıoğlu, Iraz Akış
The Thai Journal of Veterinary Medicine
Mammary tumors are the most common neoplasm in dogs, with a high mortality rate. The development of canine mammary tumors (CMT) is multifactorial, but different incidence rates between breeds suggest the effects of genetic risk factors. Many CMT-associated candidate genes were reported, mainly involved in cell cycle control. This study aims to investigate p27 tumor suppressor gene polymorphisms in dogs with mammary tumors and analyze the association between variations and CMTs. For this purpose, case and control groups were formed from 22 dogs diagnosed with malignant mammary tumors and 10 dogs with healthy mammary glands. The whole canine p27 gene …
The Molecular Detection Of Hemotropic Mycoplasma Species In Dogs, Hafize Tuğba Yüksel Dolgun, Şükrü Kirkan
The Molecular Detection Of Hemotropic Mycoplasma Species In Dogs, Hafize Tuğba Yüksel Dolgun, Şükrü Kirkan
The Thai Journal of Veterinary Medicine
Hemotropic mycoplasmas are uncultured bacteria that cause different degrees of hemolytic anemia in infected hosts. Molecular approaches are used to diagnose hemotropic mycoplasmas since they are difficult to identify using conventional methods. The aim of this study was to use molecular approaches to determine hemotropic mycoplasmas in dogs. Blood samples were collected in tubes (with EDTA) from 100 dogs. After DNA extraction, 100 DNA samples were investigated by PCR. Hemotropic mycoplasma was detected in 12 (12%) samples and positive samples were subjected to Sanger sequencing. Mycoplasma haemocanis was detected in 6 (50.0%) of the samples, Candidatus Mycoplasma hematoparvum in 5 …
Efficacy Of In-House Nanosilver Polyurethane Hydrogel Dressing On Second-Degree Burn Wounds In A Porcine Model, Pasakorn Brikshavana, Tapanat Songkasupa, Pleansaung Vichit, Onrampa Supsombon, Arunrode Nilrattanaprasert, Theerayuth Kaewamatawong
Efficacy Of In-House Nanosilver Polyurethane Hydrogel Dressing On Second-Degree Burn Wounds In A Porcine Model, Pasakorn Brikshavana, Tapanat Songkasupa, Pleansaung Vichit, Onrampa Supsombon, Arunrode Nilrattanaprasert, Theerayuth Kaewamatawong
The Thai Journal of Veterinary Medicine
The aim of this study was to investigate the effects of hydrogel containing nanosilver particles on a second-degree burn wound in a porcine model. The second degree burn wound was performed using 1 cm in diameter, on 100 °C heated cylindrical brass bar applied to the dorsum of pig skin. Burn wounds were randomly divided into three groups of wound dressings (WDs) including commercial polyurethane hydrogel (Cutinova Hydro®, Gr. A), in-house hydrogel (Gr. B) and in-house nanosilver hydrogel (Gr. C). The wound contraction rate and hyperemic zone were measured and investigated at 3, 7, 14 and 21 days after dressing. …
Molecular Characterization And Antibiogram Of Riemerella Anatipestifer In Ducklings In Upper Egypt, Mohamed Sabry Ahmed, Amal Abd El-Ghani Batahi, Ahmed Ibrahim Ahmed, Nabila Osman
Molecular Characterization And Antibiogram Of Riemerella Anatipestifer In Ducklings In Upper Egypt, Mohamed Sabry Ahmed, Amal Abd El-Ghani Batahi, Ahmed Ibrahim Ahmed, Nabila Osman
The Thai Journal of Veterinary Medicine
Riemerella anatipestifer infection represents a great threat to the duck industry worldwide and it is considered the major cause of death in the backyard rearing system of ducks in Egypt. The disease is characterized by diarrhea, respiratory signs and loss of weight. The present study was conducted during the period between July 2019 and January 2021 to examine the prevalence rate, the antibiogram patterns of the different antibiotics and the pathogenicity of R. anatipestifer in Qena province. One-hundred samples were collected from diseased and freshly dead backyard ducklings. A tentative characterization of R. anatipestifer was done depending on the phenotypic …
The Benefits Of Dexmedetomidine For Pain Mitigation After Cautery Disbudding In Calves, Tsung-Ching Liu, Chen-Fei Chiang, Thomas Chia-Tang Ho, Jacky Peng-Wen Chan
The Benefits Of Dexmedetomidine For Pain Mitigation After Cautery Disbudding In Calves, Tsung-Ching Liu, Chen-Fei Chiang, Thomas Chia-Tang Ho, Jacky Peng-Wen Chan
The Thai Journal of Veterinary Medicine
The purpose of this study was to determine the effect of dexmedetomidine (DEX) alone on pain mitigation following cautery disbudding in calves. A total of 21 calves were randomly divided into three groups: sham-disbudded control with placebo (S, n = 8); hot-iron disbudded after placebo (D, n = 6); hot-iron disbudded after 0.01 mg/kg of DEX (DeD, n = 7). The pain-related responses measured included serum cortisol levels, struggling scores, pain-related behaviors and other physiological values. The results indicated that the struggling scores, the cortisol concentrations from +10 to +60 min after disbudding and the area under curve of cortisol …
Productivity Of Young Broilers Fed Phyllanthus Niruri Linn And Melaleuca Cajuput Leaf Meal As A Phytogenic Feed Additive, Listya Purnamasari
Productivity Of Young Broilers Fed Phyllanthus Niruri Linn And Melaleuca Cajuput Leaf Meal As A Phytogenic Feed Additive, Listya Purnamasari
The Thai Journal of Veterinary Medicine
Feed additives from medicinal plants can be used as alternative antibiotics to optimize productivity, growth, and health of livestock. Medicinal plants Phyllanthus niruri Linn (Meniran) and Melaleuca cajuput (Kajuput) as alternative growth promoters contain antioxidants and antimicrobials to improve the quality of animal products. The aim of the study was to evaluate the effect of medicinal plant leaf meals as phytogenic feed additives on broilers’ productivity and internal organ parameters. For 21 days fed, 80 1-day-old Loughmann broilers (MB202) unsex were distributed in 4 treatments with 4 pens per treatment and 5 birds per pen. The dietary treatments were: T1 …
Image Processing And Machine Learning Approach For Yolk Color Evaluation, Supreeya Thepparak, Chusak Pulmar, Chanwit Kaewtapee
Image Processing And Machine Learning Approach For Yolk Color Evaluation, Supreeya Thepparak, Chusak Pulmar, Chanwit Kaewtapee
The Thai Journal of Veterinary Medicine
The objective of this study was to develop a predictive model for yolk color measurement using machine learning. A total of eight hundred eggs were randomly collected from thirty laying hens (Lohmann brown, 28–35 weeks). The experimental diets were formulated based on broken rice or corn, and further supplemented with canthaxanthin from 10 to 150 mg/kg. The Digital YolkFan™ was used to classify yolk color scales from 0 to 15, whereas the Hunter Lab was used to measure color values. Furthermore, yolk images were obtained from a digital camera and then extracted into red color, green color and blue (RGB) …
Single-Tank Sequencing Batch Bioreactor With A Cellulose Substrate For Simultaneous Nitrification And Denitrification Of An Aquarium, Aranya Ponpornpisit, Malinee Jongjaroenjai, Naowarat Suthamnatpong, Sanit Piyapattanakorn, Surachet Burut-Archanai
Single-Tank Sequencing Batch Bioreactor With A Cellulose Substrate For Simultaneous Nitrification And Denitrification Of An Aquarium, Aranya Ponpornpisit, Malinee Jongjaroenjai, Naowarat Suthamnatpong, Sanit Piyapattanakorn, Surachet Burut-Archanai
The Thai Journal of Veterinary Medicine
Processing and detoxifying nitrogenous waste in an aquarium is difficult with one tank because nitrifying and denitrifying bacteria need contradictory conditions to grow and survive. Herein, a single-tank sequencing batch bioreactor was used to simultaneously perform aerobic nitrification and denitrification for aquarium filtration. To evaluate its performance at the laboratory-scale, the 8 L bioreactor was connected to a 20 L aquarium with a carbon water filter and containing Oranda goldfish. The bioreactor comprised a bottom layer filled with 2.5 L of polyester sponge, covered with 1 L of carbon pellets and then 2.5 L of cellulose beads or polyester sponge. …
A Comparison Of Diploid And Triploid Eastern Oysters For Aquaculture Production Under Extreme Temperatures And Salinities, Joshua H. Kim
A Comparison Of Diploid And Triploid Eastern Oysters For Aquaculture Production Under Extreme Temperatures And Salinities, Joshua H. Kim
LSU Master's Theses
Off-bottom aquaculture of Eastern oysters (Crassostrea virginica) is a nascent industry that is increasingly supported by the use of triploid oysters, which grow faster than diploids. Despite their growth advantage, elevated triploid mortality compared to diploids under high temperature, low salinity, or a combination of these conditions challenge consistent triploid production. Identifying the environmental thresholds at which differential triploid mortality occurs and predicting its economic impact are important to informing decision-making in oyster aquaculture. The goal of this thesis was to compare the biological and economic performance of diploid and triploid oysters under high temperature and low salinity conditions. …
An Indirect Elisa Using A Recombinant Envelope Protein For Detecting Antibody Against Duck Tembusu Virus Infection, Thaweesak Songserm
An Indirect Elisa Using A Recombinant Envelope Protein For Detecting Antibody Against Duck Tembusu Virus Infection, Thaweesak Songserm
The Thai Journal of Veterinary Medicine
Duck Tembusu virus (DTMUV) belonging to Flavivirus group, causes severe central nervous system disorders and decreased egg production as found in Thailand. To detect antibody against the DTMUV infection, we developed an indirect enzyme-linked immunosorbent assay (ELISA) based on the recombinant envelop (E) protein for coating antigen. The E protein coding gene of KPS54A61DTMUV was cloned into pPICzαA vector and expressed by using 2% (v/v) of absolute methanol as inducer in Pichia pastoris expression. The recombinant E protein was detected in the culture medium at a concentration of 4.55 mg/ml and analyzed a protein expected size by SDS-PAGE at 65 …
Production, Purification, And Specificity Serologically Determination Of Immunoglobulin-Y (Igy) From Chicken Eggs Against Clostridium Tetani Toxoid, Kürşat Teti̇k, Bariş Sareyyüpoğlu
Production, Purification, And Specificity Serologically Determination Of Immunoglobulin-Y (Igy) From Chicken Eggs Against Clostridium Tetani Toxoid, Kürşat Teti̇k, Bariş Sareyyüpoğlu
Turkish Journal of Veterinary & Animal Sciences
Tetanus is a life-threatening bacterial disease of humans and many animal species caused by the neurotoxin tetanospasmin (TeNT) produced by Clostridium tetani. Antitoxins obtained from horses and humans are primarily used to treat this disease. However, there are several clinical side effects and disadvantages associated with the use of these antitoxins. Current techniques for diagnosing tetanus use monoclonal antibodies produced in mice. These antibodies have several advantages, such as homogeneity and specificity. In contrast, a notable feature of polyclonal antibodies, especially egg yolk antibodies (IgYs) extracted from poultry, is that they can be generated in greater quantities than mammalian antibodies …
Knockdown Of Gonadotropin-Releasing Hormone Ii Receptor Impairs Ovulation Rate, Corpus Luteum Development, And Progesterone Production In Gilts, Amy T. Desaulniers, Rebecca Cederberg, Clay A. Lents, Brett White
Knockdown Of Gonadotropin-Releasing Hormone Ii Receptor Impairs Ovulation Rate, Corpus Luteum Development, And Progesterone Production In Gilts, Amy T. Desaulniers, Rebecca Cederberg, Clay A. Lents, Brett White
Department of Animal Science: Faculty Publications
Reproduction is classically controlled by gonadotropin-releasing hormone (GnRH-I) and its receptor (GnRHR-I) within the brain. In pigs, a second form (GnRH-II) and its specific receptor (GnRHR-II) are also produced, with greater abundance in peripheral vs. central reproductive tissues. The binding of GnRH-II to GnRHR-II has been implicated in the autocrine/paracrine regulation of gonadal steroidogenesis rather than gonadotropin secretion. Blood samples were collected from transgenic gilts, with the ubiquitous knockdown of GnRHR-II (GnRHR-II KD; n = 8) and littermate controls (n = 7) at the onset of estrus (follicular) and 10 days later (luteal); serum concentrations of 16 steroid hormones …
Northern Fur Ssal Vibrissae Organochlorine Contaminant Concentrations, Dimitri Giarikos, Amy Hirons, Courtney White
Northern Fur Ssal Vibrissae Organochlorine Contaminant Concentrations, Dimitri Giarikos, Amy Hirons, Courtney White
SECLER Data
The eastern Pacific stock of northern fur seals (Callorhinus ursinus) on the Pribilof Islands has experienced population declines since 1980. The decline may be due to anthropogenic persistent organic pollutants (POPs) which bioaccumulate, are toxic, and persistent. This study conducted a comparison of 21 organochlorine (OC) and 39 polybrominated diphenyl ether (PBDE) analyte concentrations utilizing archived vibrissae (whiskers) from individual fur seals sampled in 1993 (n=30) and 2013 (n=41). The PBDEs had values five times greater than the legacy status OCs. There were no significant mean concentration differences between 1993 and 2013 for total organochlorines (ΣOCs), or total …
Northern Fur Seal Vibrissae Polybrominateddiphenylether Concentrations, Dimitri Giarikos, Amy Hirons, Courtney White
Northern Fur Seal Vibrissae Polybrominateddiphenylether Concentrations, Dimitri Giarikos, Amy Hirons, Courtney White
SECLER Data
The eastern Pacific stock of northern fur seals (Callorhinus ursinus) on the Pribilof Islands has experienced population declines since 1980. The decline may be due to anthropogenic persistent organic pollutants (POPs) which bioaccumulate, are toxic, and persistent. This study conducted a comparison of 21 organochlorine (OC) and 39 polybrominated diphenyl ether (PBDE) analyte concentrations utilizing archived vibrissae (whiskers) from individual fur seals sampled in 1993 (n=30) and 2013 (n=41). The PBDEs had values five times greater than the legacy status OCs. There were no significant mean concentration differences between 1993 and 2013 for total organochlorines (ΣOCs), or total …
Managing Equine Metabolic Syndrome, Abigail Meldrum, Karl Hoopes
Managing Equine Metabolic Syndrome, Abigail Meldrum, Karl Hoopes
All Current Publications
Equine metabolic syndrome (EMS) is a relatively new disease that we are still learning about. There are many things to investigate when dealing with a new disease: causes, predispositions, symptoms, secondary issues, treatments, and prevention. Because changing the animal's feed regimen is currently the most effective and well-known way to manage EMS, this fact sheet focuses primarily on how diet can impact affected horses. As a newer syndrome, it is vital to learn as much as possible about it to understand, treat, and prevent this disease.
Impact Of Partial Oil Removal On Energy Content Of Distillers Grains Plus Solubles For Finishing Cattle, Jordan E. Burhoop, J. L. Sperber, Curt J. Bittner, F. Henry Hilscher, J. C. Macdonald, Galen E. Erickson
Impact Of Partial Oil Removal On Energy Content Of Distillers Grains Plus Solubles For Finishing Cattle, Jordan E. Burhoop, J. L. Sperber, Curt J. Bittner, F. Henry Hilscher, J. C. Macdonald, Galen E. Erickson
Department of Animal Science: Faculty Publications
Two experiments evaluated the impact of the reduction in the percentage of corn oil remaining in distillers grains plus solubles (DGS) after the ethanol plant de-oiling process or by adding corn oil back to DGS following de-oiling on finishing cattle performance and nutrient digestion. Experiment 1 utilized 320 yearling steers (initial BW = 413 kg; SD = 25 kg) fed in 32 pens (10 steers/pen) and assigned to one of four treatments (n = 8 pens/treatment). The four treatments consisted of a blended DRC:HMC corn control diet (CON), de-oiled modified distillers grains plus solubles included at 40% of diet DM …
Seroprevalence And Associated Risk Factors Of Toxoplasma Gondii Infections In Dogs In Egypt, Abdelfattah Selim, Mohamed Marzok, Hattan S. Gattan, Omar A. Aljabr, Mohammed H. Alruhaili, Mohamed Salem
Seroprevalence And Associated Risk Factors Of Toxoplasma Gondii Infections In Dogs In Egypt, Abdelfattah Selim, Mohamed Marzok, Hattan S. Gattan, Omar A. Aljabr, Mohammed H. Alruhaili, Mohamed Salem
The Thai Journal of Veterinary Medicine
Toxoplasma gondii is a parasite that is found all over the world and has significant importance in veterinary medicine and public health. Dogs are considered as a final host for the parasite and play an important role in spreading of infection via contamination of environment by oocysts. The study aimed to determine the seroprevalence of T. gondii and analysis risk factors associated with the infections in dogs. A total of 430 blood samples were collected from dogs from three governorates situated at northern Egypt and analyzed using commercial ELISA kit. The overall seroprevalence of T. gondii in dogs was 24% …
Alternative Methods For Finishing Beef Cattle: Effects On Performance, Carcass Quality, And Meat Characteristics, Michelle Johnson
Alternative Methods For Finishing Beef Cattle: Effects On Performance, Carcass Quality, And Meat Characteristics, Michelle Johnson
Graduate Theses and Dissertations
The objective of these studies was to evaluate the effects of alternative finishing methods on the live performance, carcass quality, and meat characteristics of beef steers. In study 1, treatments consisted of a conventional feedlot finishing diet with roughage included in the ration (FDLT); a high starch diet fed at 2-2.25% of BW with ad libitum access to bermudagrass pastures (STCH); or a high by-product diet fed at 2-2.25% of BW with ad libitum access to bermudagrass pastures (BYPD). Steers were fed their respective diets once daily and weighed every 28 days until deemed finished. Cattle were then transported and …
The Influence Of Commercial Salmonella Vaccination Programs On Local- And Systemic-Immune Responses And Ceca Microbiome In Egg-Type Chickens, Chrysta Noelle Beck
The Influence Of Commercial Salmonella Vaccination Programs On Local- And Systemic-Immune Responses And Ceca Microbiome In Egg-Type Chickens, Chrysta Noelle Beck
Graduate Theses and Dissertations
Salmonella vaccination is a widely accepted practice in the United States poultry industry. These vaccines stimulate a strong humoral response to Salmonella serovars and significantly reduce Salmonella load in the bird. In general, a Salmonella vaccination program for an egg-type pullet flock consists of two administrations of a live attenuated Salmonella vaccine at 1- and 6-wk-of-age followed by one administration of a Salmonella bacterin at 12-wk-of-age. Although these vaccines are regarded as effective against paratyphoid Salmonella infections, there are incidences of breakthrough Salmonella infections and severe injection site reactions after bacterin administration. Therefore, the main objective of this dissertation was …
Spatiotemporal Plasticity In Reproductive Readiness And Recruitment Of Ichthyoplankton Of Invasive Silver Carp Along A Western Invasion Front, Jessi L. Urichich
Spatiotemporal Plasticity In Reproductive Readiness And Recruitment Of Ichthyoplankton Of Invasive Silver Carp Along A Western Invasion Front, Jessi L. Urichich
School of Natural Resources: Dissertations, Theses, and Student Research
Individuals of invasive species at the edge of their invasion distribution may exhibit enhanced reproductive capacity and phenotypic plasticity leading to accelerated range expansion. Environmental conditions in highly fluctuating environments at distribution edges may either promote or hinder such reproductive readiness and phenotypic plasticity. Dynamic habitat conditions and periodic disturbances experienced in prairie streams, such as drought (e.g., low-flow, high water temperatures), may potentially reduce suitable spawning environments and ichthyoplankton recruitment of invasive Silver Carp, potentially slowing range expansion or enabling management strategies that reduce abundance in the absence of a reproducing population. Female Silver Carp batch fecundity, Gonadosomatic Index …
Impacts Of Invasive Carp And Their Population Dynamics On Fish Communities In The Missouri River, Joshua F. Kocik
Impacts Of Invasive Carp And Their Population Dynamics On Fish Communities In The Missouri River, Joshua F. Kocik
School of Natural Resources: Dissertations, Theses, and Student Research
Invasive Carp species: Silver Carp Hypophthalmichthys molitrix, Bighead Carp Hypophthalmichthys nobilis, Grass Carp Ctenopharyngodon idella, and Black Carp Mylopharyngodon piceus have both potential and realized abilities to negatively impact native species. Specifically, Bighead Carp and Silver Carp as filter feeders have been theorized to be detrimental not only to adult filter-feeding species, but to many fish which rely on plankton and algae in their early-life stages. The impact of Invasive Carp on the overall fish community remains underexplored. The fish communities below Gavins Point Dam (Invasive Carp present) and Fort Randall Dam (Invasive Carp absent) afford the …
Comparative Morphology And Development Of The Trigeminally Innervated Infrared-Imaging System In Boas And Pythons, Helen Bond Plylar
Comparative Morphology And Development Of The Trigeminally Innervated Infrared-Imaging System In Boas And Pythons, Helen Bond Plylar
All Graduate Theses and Dissertations, Fall 2023 to Present
Boas and pythons use specialized sense organs called pit organs to detect radiant heat. Pit organs in these lineages occur in paired arrays along the upper and lower jaws and are served by the trigeminal nerve (the fifth cranial nerve and one of the largest). Information from the pit organs travels via branches of the trigeminal to the brain and ultimately is processed in the optic tectum, along with information from the visual system. That means these snakes effectively “see” heat. While studies of the pitviper infrared-imaging system are numerous, very few studies of this system in pythons or boas …
Balancing The Scales: Evaluating Variables Of Greatest Impact To Profit Margins When Finishing Cattle, Ryan Bake
All Graduate Reports and Creative Projects, Fall 2023 to Present
This study examines the risk associated with finishing cattle in a feedlot, specifically in the context of historically high cattle prices and quality grade grid marketing systems that have not adjusted to these elevated prices. The analysis also looks at performance factors that drive profitability differences in pens of cattle in a commercial feedlot, and how market factors also impact profitability. Regression analysis determines the significance of performance variables such as days on feed, average daily gain, feed conversion rates, and carcass characteristics on pen profitability. The impact of cattle breeding and pre-feedlot management of the cattle are also considered …