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Articles 5401 - 5430 of 21425
Full-Text Articles in Entire DC Network
Biochemical And Physiological Responses Of Nili-Ravi Buffalo (Bubalus Bubalis) To Heatstress, Umair Younas, Muhammad Abdullah, Jalees Ahmed Bhatti, Nisar Ahmed, Faisal Shahzad, Musadiq Idris, Sana Tehseen, Muhammad Junaid, Saima Tehseen, Saeed Ahmed
Biochemical And Physiological Responses Of Nili-Ravi Buffalo (Bubalus Bubalis) To Heatstress, Umair Younas, Muhammad Abdullah, Jalees Ahmed Bhatti, Nisar Ahmed, Faisal Shahzad, Musadiq Idris, Sana Tehseen, Muhammad Junaid, Saima Tehseen, Saeed Ahmed
Turkish Journal of Veterinary & Animal Sciences
The present study was designed with an objective to evaluate the impact of various strategies to alleviate heat stress on certain physiological attributes viz. respiratory rate (RT), body surface temperature (BST), pulse rate (PR), and respiratory rate (RR); biochemical attributes viz. glucose, total protein (TP), and cholesterol; and endocrinological parameters (tri-iodothyronine and tetraiodothyronine) of the Nili-Ravi buffaloes during early summer season. Lactating Nili-Ravi buffaloes (n = 20) with close production and parity stage were divided into four treatment groups as group A (control group under roof shades only), B (experimental group under roof shades with antistress supplementation), C (experimental group …
Light And Scanning Electron Microscopic Examination Of The Saanen Goat Heart, Sedef Selvi̇ler Si̇zer, Yonca Beti̇l Kabak, Murat Kabak
Light And Scanning Electron Microscopic Examination Of The Saanen Goat Heart, Sedef Selvi̇ler Si̇zer, Yonca Beti̇l Kabak, Murat Kabak
Turkish Journal of Veterinary & Animal Sciences
It is important to know the morphological structure of the heart, which is a vital organ of the body, in detail. For this reason, we aimed to examine the morphological structure of the Saanen goat heart using light and scanning electron microscopy (SEM). A total of thirteen Saanen goat hearts were used in the study. To demonstrate the histological structure of the heart, samples taken from 9 hearts were fixed in 10% formaldehyde solution and blocked in paraffin after routine histological procedures. Histological staining was performed on the sections taken from the blocks. Four hearts were fixed in a 2.5% …
Prevalence Of Ectoparasites On A Stray Cat Population From "Town Of Knowledge" Kotasamarahan, Sarawak, Malaysian Borneo, Naim Che Kamaruddin, Madinah Adrus, Wan Nurainie Wan Ismail
Prevalence Of Ectoparasites On A Stray Cat Population From "Town Of Knowledge" Kotasamarahan, Sarawak, Malaysian Borneo, Naim Che Kamaruddin, Madinah Adrus, Wan Nurainie Wan Ismail
Turkish Journal of Veterinary & Animal Sciences
Stray cats survive on their own and scavenge the surrounding areas for food to survive. Their exploitation to investigate the prevalence of ectoparasites can be of great medical importance for humans as they harbour a variety of zoonotic pathogens. Therefore, a survey of ectoparasites on stray cats was carried out from November 2017 to March 2018 around the Town of Knowledge to determine the prevalence of ectoparasites in stray cats and their potential to threaten the public health by infesting stray cats around Kota Samarahan, Sarawak, Malaysian Borneo. A total of 150 individuals of stray cats have been examined for …
Effect Of Prebiotics On The Growth Performance, Haematological, Biochemical, Andhistological Parameters Of African Catfish (Clarias Gariepinus) In Recirculatingaquaculture System, Ercüment Genç, Münevver Ayçe Genç, Doğukan Kaya, Fai̇k Sertel Seçer, Abdolsaleh Qaranji̇ki̇, Derya Güroy
Effect Of Prebiotics On The Growth Performance, Haematological, Biochemical, Andhistological Parameters Of African Catfish (Clarias Gariepinus) In Recirculatingaquaculture System, Ercüment Genç, Münevver Ayçe Genç, Doğukan Kaya, Fai̇k Sertel Seçer, Abdolsaleh Qaranji̇ki̇, Derya Güroy
Turkish Journal of Veterinary & Animal Sciences
In this study, African catfish (Clarias gariepinus) was investigated under controlled conditions in recirculating aquaculture system (RAS). The experiment tested the effects of three different dietary prebiotics (FOS: fructooligosaccharide, GOS: galactooligosaccharide, and MOS: mannanoligosaccharide) in two levels (1 g/kg and 2 g/kg) and a control diet on the growth performance, survival rate, haematological and biochemical parameters, and small intestinal and liver histology of the African catfish. Better growth results were obtained in MOS (2 g/kg) supplementation, and there was a statistical difference (P < 0.05) between the MOS (2 g/kg) and the control group. Haematological parameters (erythrocyte sedimentation rate, red blood cell, white blood cell, lymphocyte, neutrophil, and glucose) were similar among all groups (P > 0.05) while some (alanine aminotransferase, aspartate aminotransferase enzymes, and monocyte) were significantly different (P < 0.05). The MOS (2 g/kg) group had longer villi length values than the control group. There was no difference among the groups in terms of small intestine histomorphology and liver tissues in fish. According to the results of this experiment, it can be said that MOS addition has a positive effect on growth parameters and could improve health conditions in Clarias gariepinus culture.
Contributions To The Systematics Of The Family Buprestidae (Coleoptera) By The Firstdescription Of Male External Genital Organ And Illustrations Of Six Species From Ankaraprovince, Ali̇ Kemal Kirçakci, Mahmut Kabalak
Contributions To The Systematics Of The Family Buprestidae (Coleoptera) By The Firstdescription Of Male External Genital Organ And Illustrations Of Six Species From Ankaraprovince, Ali̇ Kemal Kirçakci, Mahmut Kabalak
Turkish Journal of Zoology
The main aim of this study is to contribute to the systematics relating to the family Buprestidae, by studying the male external genital organs (aedeagi) of six species belonging to the genera Acmaeodera, Acmaeoderella, Anthaxia, Capnodis, and Perotis, none of which had been illustrated previously. Samples of these species were collected from the province of Ankara, Turkey, and the aedeagus of each was described and illustrated in detail for the first time. The findings were then compared with the current literature.
Ecotoxicological Investigation Of Cyanobacterial Crude Extracts Todaphnia Magna Under Subchronic Test Conditions, Tan Duc Nguyen, Xuan Quang Ngo, Thanh Luu Pham, Thanh Son Dao
Ecotoxicological Investigation Of Cyanobacterial Crude Extracts Todaphnia Magna Under Subchronic Test Conditions, Tan Duc Nguyen, Xuan Quang Ngo, Thanh Luu Pham, Thanh Son Dao
Turkish Journal of Zoology
Cyanobacterial blooms often consist of mixtures of microcystin-producing and microcystin-free species, and both can cause unpredictable effects on aquatic organisms. In this work, the subchronic effects of the cyanobacterial crude extracts (CCEs) from microcystin-producing and microcystin-free cyanobacteria with different microcystin concentrations (1, 10, and 50 μgL$^{-1}$)on Daphnia magna were investigated. The life-history trait responses of D. magna to CCEs were determined based on survival, reproduction, and somatic growth. In addition, the physiological response, represented by the feeding rate of D. magna on green algae (Scenedesmus sp.), after exposure to both types of crude extracts was estimated. Our results showed that …
Effect Of Chemical- And Toxin Binder-Treated Cotton Seed Cake On Milk Production, Milkcomposition, And Aflatoxin Concentration In Milk Of Nili Ravi Lactating Buffaloes, Murtaza Ali Tipu, Anjum Khalique, Muhammad Naveed Ul-Haque, Muhammad Qamer Shahid, Maqsood Akhtar, Mubashir Ilyas
Effect Of Chemical- And Toxin Binder-Treated Cotton Seed Cake On Milk Production, Milkcomposition, And Aflatoxin Concentration In Milk Of Nili Ravi Lactating Buffaloes, Murtaza Ali Tipu, Anjum Khalique, Muhammad Naveed Ul-Haque, Muhammad Qamer Shahid, Maqsood Akhtar, Mubashir Ilyas
Turkish Journal of Veterinary & Animal Sciences
Twelve multiparous Nili Ravi buffaloes were assigned to 1 of 3 treatments in a randomized, replicated 3 × 3 Latin square design to evaluate the effect of chemical (calcium propionate)- and toxin binder (sodium bentonite)-treated cotton seed cake (CSC) on milk yield and transfer of milk toxin (M1). Periods (20 days) were allocated for each treatment. In the 1st treatment (control), CSC with 100 μg/kg of aflatoxin B1 (AFB1) was fed to buffaloes. The 2nd and 3rd treatments were 0.5% calcium-propionate-treated CSC and 1.0% sodium-bentonite-treated CSC, respectively. Each group had 4 multiparous buffaloes. The buffaloes given 0.5% calcium propionate CSC …
The Effect Of Year, Month, Region, And Herd Size On Bulk Tank Somatic Cell And Standardplate Count, And The Determination Of Optimum Herd Size In The Intensive Holsteinfriesian Dairy Farms In The Turkish Republic Of Cyprus, Hati̇ce Di̇lek Arsoy
Turkish Journal of Veterinary & Animal Sciences
The objective of this study was to determine the effects of mount, year, region, and herd size on the bulk tank somatic cell count (SCC) and standard plate count (SPC) and total milk production of Holstein Friesian cows and to decide for optimum herd size in Northern Cyprus. The total number of cattle was 64,450 heads and the number of enterprises was 168 in 2016. The milk samples were collected once or twice a month from each herd. SCC and SPC were determined with the Fluoro-opto-electronic counter method. Herd sizes were described from small to extra-large enterprises for Northern Cyprus …
The Effects Of Season And Chick Sex On Certain Performance Parameters In Commercialturkey Farms In The Aegean Region, Gündüz İlsever, Pembe Di̇lara Keçi̇ci̇, Bülent Eki̇z
The Effects Of Season And Chick Sex On Certain Performance Parameters In Commercialturkey Farms In The Aegean Region, Gündüz İlsever, Pembe Di̇lara Keçi̇ci̇, Bülent Eki̇z
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to determine the effects of season and sex on the production efficiency of commercial turkey farms in the Aegean Region. The data of 1161 production periods (570 male and 591 female) on 139 turkey farms between 2008 and 2017 were analysed. Daily feed consumption, feed conservation ratio (FCR), average daily gain (ADG), performance index, and carcass weight (P < 0.001) were higher in males than females. While males and females had a similar mortality rate in the first week (P > 0.05), the mortality rate in the later stages was higher in males (P < 0.001). The mortality rate in the initial period was highest in production periods that began in winter and lowest in those that began in summer (P < 0.001). The total mortality rate was higher in the autumn group than in the spring and summer groups (P < 0.001). Rearing season × sex interaction had a significant influence on the performance characteristics investigated in the study, except for mortality rates and survival. In males, FCR was lower in the autumn and winter groups than that of the spring and summer groups (P < 0.05). The highest ADG values were observed in the summer group for males and in the winter group for females. The best performance index was in the summer group in males, and the lowest performance index was observed in the autumn group for both males and females. In conclusion, environmental arrangements are needed in order to reduce the mortality rate and improve performance in production periods that began in autumn and winter.
The Effect Of Staphylococcus Aureus Extracellular Products (Secp) On Performance,Selective Innate Immune Indexes, And Humoral Immune Response Against Avian Influenzaand Newcastle Disease Vaccines In Broiler Chickens, Teimour Tabari, Younes Papi, Esmaeil Azizi, Forough Talazadeh, Ramezan Ali Jafari, Masoud Ghorbanpoor
The Effect Of Staphylococcus Aureus Extracellular Products (Secp) On Performance,Selective Innate Immune Indexes, And Humoral Immune Response Against Avian Influenzaand Newcastle Disease Vaccines In Broiler Chickens, Teimour Tabari, Younes Papi, Esmaeil Azizi, Forough Talazadeh, Ramezan Ali Jafari, Masoud Ghorbanpoor
Turkish Journal of Veterinary & Animal Sciences
Improving the immune response is important for many reasons such as vaccine failure, immunosuppressive diseases, and antibiotics misuse. Research on materials likely to have immune-enhancing effects has been on the rise. Factors, substances, or compounds that can regulate different functions of the immune system can be used to enhance specific and even nonspecific responses to vaccines. Different amounts (0, 25, 50, and 100 μg) of Staphylococcus aureus extracellular products (SECP) were injected subcutaneously to different groups of chickens during the first vaccination against avian influenza (AI) and Newcastle disease (ND) viruses to investigate the effect of SECP on innate and …
Oxidative Stress In Calves With Enzootic Pneumonia, Mustafa Özbek, Cumali̇ Özkan
Oxidative Stress In Calves With Enzootic Pneumonia, Mustafa Özbek, Cumali̇ Özkan
Turkish Journal of Veterinary & Animal Sciences
This study was performed to evaluate the oxidative stress in calves with enzootic pneumonia. Ninety calves that were 2?6 months old were used in this study. Ten of these calves were healthy and used as the control group, while 80 were diagnosed with enzootic pneumonia according to the clinical examinations. The biochemical results showed that total oxidant status (TOS), nitric oxide (NO), malondialdehyde (MDA), and sialic acid (SA) levels were higher in calves with enzootic pneumonia than in the control group. While there was a statistically significant increase in TOS, MDA, and SA concentrations, there was not any statistically significant …
Comparative Evaluation Of The Effects Of Different Thawing Methods On Bull Spermcharacteristics With Computer-Assisted Semen Analysis, Murat Selçuk, Eser Akal, Burcu Esi̇n, Mustafa Yi̇ği̇t Ni̇zam, Merve Deni̇z Genç
Comparative Evaluation Of The Effects Of Different Thawing Methods On Bull Spermcharacteristics With Computer-Assisted Semen Analysis, Murat Selçuk, Eser Akal, Burcu Esi̇n, Mustafa Yi̇ği̇t Ni̇zam, Merve Deni̇z Genç
Turkish Journal of Veterinary & Animal Sciences
Postthaw survival of spermatozoa with high motility and vitality is required for successful artificial insemination. The aim of this study was to compare the effects of two different thawing methods on motility, morphology, kinematic parameters, and viability of spermatozoa with a computer-assisted semen analyzer (CASA). Frozen bull spermatozoa were thawed by using two different thawing procedures: 1) Water bath; straws were thawed in a water bath at 37 °C for 30 s. 2) Dry thawing system; straws were thawed in a dry thawing device at 37 °C for 30 s. A total of 10 straws were used for each thawing …
Retrospective Evaluation Of Factors Affecting Superovulatory Response In Embryoproduction In Simmental Cattle, Hüseyi̇n Erdem, Hasan Alkan, Tahi̇r Karaşahi̇n, Şükrü Dursun, Fatma Satilmiş, Mehmet Güler
Retrospective Evaluation Of Factors Affecting Superovulatory Response In Embryoproduction In Simmental Cattle, Hüseyi̇n Erdem, Hasan Alkan, Tahi̇r Karaşahi̇n, Şükrü Dursun, Fatma Satilmiş, Mehmet Güler
Turkish Journal of Veterinary & Animal Sciences
In the present study, it was aimed to investigate the effect of lactation status, days in milk (DIM), follicle stimulating hormone (FSH) dose, and repeated superstimulations on superovulation response and embryo yield in Simmental cattle. In the present study, 193 Simmental breed cattle (lactating, nonlactating, and heifer) were used as donors, of which 149 were superovulated only once and the other 44 were superovulated for 3 times. Progesterone-based estrus synchronization protocol was applied to the donors. Starting from day 7, FSH was given intramuscularly to donors in decreasing doses twice a day for 4 days. The donors were injected with …
Implementing Welfare Science: Case Studies In Evidence-Based Zoo Management, Marisa Suzanne Spain
Implementing Welfare Science: Case Studies In Evidence-Based Zoo Management, Marisa Suzanne Spain
UNF Graduate Theses and Dissertations
Animal welfare science is a field that focuses on how we can improve the lives and well-being of animals in human care. Modern welfare science has moved away from simply preventing suffering and on to promoting positive welfare states, a concept that has been coined animal “wellness”. A process called evidence-based zoo management has been implemented in many zoos as a way to promote and ensure wellness. This is the idea that husbandry and housing standards should be evaluated and tested for their efficacy using data rather than relying on traditional best practices. In this manuscript we discuss an informal …
Conventional Science Will Not Do Justice To Nonhuman Interests: A Fresh Approach Is Required, Becca Franks, Christine Webb, Monica Gagliano, Barbara Smuts
Conventional Science Will Not Do Justice To Nonhuman Interests: A Fresh Approach Is Required, Becca Franks, Christine Webb, Monica Gagliano, Barbara Smuts
Animal Sentience
Treves et al. (2019) make a convincing case that conservation efforts need to go beyond an anthropocentric worldview. Implementing that vision, however, will require human advocates to represent nonhuman interests. Where will the knowledge of those interests come from? How can humans know what is in the best interest of another animal, a plant, or an ecosystem? We discuss how the values embedded in current scientific practices may be ill-suited to representing nonhuman interests and we offer some ideas for correcting these shortcomings.
Influence Of Livestock And Electrified Fences On Livestock Depredation And Habitat Selection By Grizzly Bears In The Mission Valley, Montana, Kari Lynn Eneas
Influence Of Livestock And Electrified Fences On Livestock Depredation And Habitat Selection By Grizzly Bears In The Mission Valley, Montana, Kari Lynn Eneas
Graduate Student Theses, Dissertations, & Professional Papers
Balancing protection between livestock and carnivores has been a long-standing challenge in conservation. When encounters between carnivores and livestock or humans result in conflict or livestock depredation, the safety of both wildlife and humans are at risk. Reducing livestock depredation by grizzly bears (Ursus arctos horribilis) will be important as populations continue to recover and expand beyond public lands in the Northern Continental Divide Ecosystem. We used GPS locations from 8 female grizzly bears spanning 5 years in the Mission Valley, Montana, to evaluate the effect of livestock on habitat selection of grizzly bears. The Mission Valley is located on …
A Tale Of Two Cities: Aedes Mosquito Surveillance Across The Texas-Mexico Border, Teresa Patricia Feria-Arroyo, Consuelo Aguilar, Cuauhtémoc Quintero Vazquez, Rene Santos-Luna, Susana Roman-Perez, Tamer Oraby, Gustavo Sanchez Tejeda, Fabian Correa Morales, Víctor M. Salazar Bueyes, Pascual Camacho Guevara
A Tale Of Two Cities: Aedes Mosquito Surveillance Across The Texas-Mexico Border, Teresa Patricia Feria-Arroyo, Consuelo Aguilar, Cuauhtémoc Quintero Vazquez, Rene Santos-Luna, Susana Roman-Perez, Tamer Oraby, Gustavo Sanchez Tejeda, Fabian Correa Morales, Víctor M. Salazar Bueyes, Pascual Camacho Guevara
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
Cross border situations complicate epidemiologic risk assessments in transboundary regions such as the US-Mexico border. Countries have different health policies, mosquito control policies, and mosquito surveillance systems. We established a binational Aedes mosquito surveillance program in Reynosa, Tamaulipas, and McAllen, Texas by replicating a part of the Mexican Integrated Vector Monitoring System (IVMS) across the international border. The entomologic surveillance of the IVMSs is based on ova collection cups (ovitraps) and for the binational project, the surveillance protocol was modified to include an Autocidal Gravid Ovitrap (AGO) in the center of every city-block (100 m2) distribution of four ovitraps. We …
Review Of Major Crop And Animal Arthropod Pests Of South Texas, Holly N. Davis, John A. Goolsby, Donald B. Thomas, Ismael Badillo, Rupesh R. Kariyat, Christopher Vitek, Danielle Sekula
Review Of Major Crop And Animal Arthropod Pests Of South Texas, Holly N. Davis, John A. Goolsby, Donald B. Thomas, Ismael Badillo, Rupesh R. Kariyat, Christopher Vitek, Danielle Sekula
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
The Lower Rio Grande Valley is an area in Texas that consists of the four southern-most counties. This area contains a diverse range of agriculture and land-use including vegetable, row-crop and livestock production. The year-around cool to hot subtropical climate means that green vegetation is continually present, including many crops. Geographically, it shares an international border, making it a region vulnerable to new invasive species and the re-introduction of pests that have been previously eliminated in the United States. These combined factors lead to an array of arthropod pests that may have serious impacts on the crops, animals, and people …
Bat Boxes As Mitigation Tools: Factors Impacting Microclimate And Myotis Sodalis Roost Selection, Reed Crawford
Bat Boxes As Mitigation Tools: Factors Impacting Microclimate And Myotis Sodalis Roost Selection, Reed Crawford
Online Theses and Dissertations
Environmental degradation has led to declines in available natural roosting habitat for bats. To mitigate this loss, practitioners often deploy artificial roosts (e.g., bat boxes). There are no established species-specific practices for deployment strategy and roost design selection, but occupancy rates are known to vary across species and roost microclimates can be harmful to bats. Providing bats with thermally beneficial roosts during summer could enhance overwinter survival of WNS-affected species. To further our understanding of roost preference and microclimate, we deployed 40 rocket box roosts of 5 designs at field sites in Indiana and Kentucky. Roosts were deployed in clusters …
Assessment Of Indiana Bat Reproductive Condition, Recapture Trends, And Temperatures Of Artificial Roosts In Kentucky, Michaela L. Rogers
Assessment Of Indiana Bat Reproductive Condition, Recapture Trends, And Temperatures Of Artificial Roosts In Kentucky, Michaela L. Rogers
Online Theses and Dissertations
Recovery of bat species impacted by white-nose syndrome (WNS) will necessarily require population growth. I assessed reproductive capability of the endangered Indiana bat (Myotis sodalis) in Kentucky, where WNS was first detected in hibernacula in April 2011. Due to loss of fat reserves associated with WNS infection, coupled with the energetic expenditures associated with pregnancy, I hypothesized mass of reproductively-active females captured during the maternity season would decrease across my data collection period (2017-2019). Further, I predicted that reproductive rates in the study population would be lower than historic rates for Kentucky. Mist net surveys around artificial maternity roosts at …
Impacts Of Driving Factors On Annual Cicada Emergence In Relation To The Seasonal Abundance Of Eastern Copperheads (Agkistrodon Contortrix), Jesse Christian Sockman
Impacts Of Driving Factors On Annual Cicada Emergence In Relation To The Seasonal Abundance Of Eastern Copperheads (Agkistrodon Contortrix), Jesse Christian Sockman
Online Theses and Dissertations
For many species, life history events are cyclical and often correspond to specific environmental conditions. As a result of environmental variability, the optimal conditions that regulate the range and activity of highly regulated cyclical organisms, like cicadas, are subject to temporal change. Variability in cicada emergence and abundance has been shown to impact the species that rely on the rapid influx of nutrients. One such predator is the Eastern Copperhead (Agkistrodon contortrix) that has been noted feeding on emerging cicadas throughout their range. In eastern Kentucky, observations of copperheads congregating to feed on cicadas has been documented in recreational areas. …
Conflicts And Triage, Kate E. Lynch, Daniel T. Blumstein
Conflicts And Triage, Kate E. Lynch, Daniel T. Blumstein
Animal Sentience
To represent diverse interests successfully, a strategy for dealing with conflicts is needed. We discuss an approach to maximizing the interests of the greatest number of individuals, present and future.
Rewilding And Domestication: Clarifying Terminology, Catia Correia-Caeiro
Rewilding And Domestication: Clarifying Terminology, Catia Correia-Caeiro
Animal Sentience
Baker & Winkler (B&W) describe the state of Asian elephant conservation, raising unique issues, and proposing a direction based on rewilding. The long history and socio-biology of elephants and humans has some parallels with the domestication of dogs (and other species). However, markers of domestication seem absent from elephants. The proper use of terms such as “wild” and “domestic” is crucial in defining the best conservation strategies, and, more important, in attending to the welfare needs of individuals, which can differ between wild and domestic animals. B&W’s target article represents an important starting point for discussion around elephant conservation, but …
Evaluating Inorganic Feed Phosphate Type And Further Potential Of Phytase Supplementation Using A Commercial Broiler Model, Angela Elsie Lamp
Evaluating Inorganic Feed Phosphate Type And Further Potential Of Phytase Supplementation Using A Commercial Broiler Model, Angela Elsie Lamp
Graduate Theses, Dissertations, and Problem Reports (ETD)
Optimizing feed formulation of poultry diets may be achieved by proper utilization of nutrients and feed additives. This will provide a less expensive and nutrient efficient diet to the bird. An experiment was conducted to evaluate early broiler performance, tibia mineralization, and mineral digestibility of broilers fed diets that differed in inorganic feed phosphates (IFP) but that were formulated to be either similar in dietary non-phytate phosphorus (nPP) and calcium to phosphorus ratio (Ca:P), total mineral content, or calculated prececal digestible phosphorus (CPDP). Dicalcium phosphate (DCP), monodicalcium phosphate (MDP), monocalcium phosphate (MCP), and defluorinated phosphate were used in formulations with …
Effects Of Non-Commercial Thinning On Great Horned Owls On Turnbull National Wildlife Refuge, Christopher P. Brady
Effects Of Non-Commercial Thinning On Great Horned Owls On Turnbull National Wildlife Refuge, Christopher P. Brady
EWU Masters Thesis Collection
To sustain forest health, increase species diversity and reduce wildfire events in the ponderosa pine (Pinus ponderosa) forests of at Turnbull National Wildlife Refuge (TNWR) managers have implemented a variety of approaches including prescribed burning and non-commercial thinning. The impacts of thinning on owl species diversity and habitat occupancy have not been studied in these ponderosa pine forests. My study had the following objectives 1) compare forest stand metrics between treatment plots, 2) compare owl species richness between treatment plots, 3) examine if occupancy and detection patterns of Great Horned Owls varied with forest condition and season, respectively, and 4) …
Measuring Variation In Body Morphology And Life History Traits In Brook Stickleback (Culaea Inconstans), Eastern Washington, Usa, Lily Crytser
EWU Masters Thesis Collection
For freshwater ecosystems, invasive species are considered a major threat to biodiversity, and pose a challenge to those attempting to advance management strategies aimed at conserving natural populations. An invasive species’ ability to successfully invade a new ecosystem may be influenced by phenotypic plasticity, flexibility of life history traits, and the ability to migrate/disperse, among other factors. Brook stickleback (Culaea inconstans) have been a concern in eastern Washington since 1999 when they were discovered in water bodies on Turnbull National Wildlife Refuge. The purpose of this project was to describe potential variation in body morphology traits between systems that differed …
Haemonchus Contortus Antigen Identification And Use Of Tropomyosin In Ovine Vaccine Development, Brynnan P. Russ
Haemonchus Contortus Antigen Identification And Use Of Tropomyosin In Ovine Vaccine Development, Brynnan P. Russ
Graduate Theses, Dissertations, and Problem Reports (ETD)
Globally, the small ruminant industry loses hundreds of millions of dollars due to parasitism by the gastrointestinal nematode Haemonchus contortus. This parasite feeds on blood in the host’s abomasum leading to disease including anemia, hypoproteinemia, lethargy, and death. There have been exhaustive efforts to manage this parasite including different management applications, anthelmintic treatment, and now integration of resistance genetics into a flock. Like antibiotics, overuse of anthelmintics has led to resistance of H. contortus to these drugs. Therefore, other methods of control are the main focuses of many research initiatives. St. Croix are a resistant breed of sheep that mount …
Impact Of Sire Selection And Breed On Parasite Resistance In Sheep, Andrew Ryan Weaver
Impact Of Sire Selection And Breed On Parasite Resistance In Sheep, Andrew Ryan Weaver
Graduate Theses, Dissertations, and Problem Reports (ETD)
Selection within and among breeds are strategies to mitigate the impact of parasitism given failing chemotherapeutics. While Texels have improved marketability compared to other parasite-resistant breeds, the mechanism by which Texels reduce fecal egg count (FEC) is unclear. The immune response to Haemonchus contortus (Hc) was compared in Texel, parasite-resistant St. Croix, and parasite-susceptible Suffolk sheep. Adult worms exposed to St. Croix- and Texel-derived peripheral blood mononuclear cells and serum in vitro had greater binding around the reproductive structures than Suffolk and worm egg release tended to be affected by breed (P = 0.09). Resistance in Texels …
Allopurinol Alters The Expression Of Cytokines And Mediators Of Immune Cells In The Systemic 2 Tissue By Decreasing Plasma Urate., Lundrim S. Marku
Allopurinol Alters The Expression Of Cytokines And Mediators Of Immune Cells In The Systemic 2 Tissue By Decreasing Plasma Urate., Lundrim S. Marku
Graduate Theses, Dissertations, and Problem Reports (ETD)
Diminished levels of urate have been linked to oxidative stress in birds and mammals. Urate, a major antioxidant that lowers reactive oxygen/nitrogen species (ROS/RNS), is thought to ameliorate the effects. The relationship between reduced urate, the immune system and the pathogenesis of the intestine, the liver or the brain has not been well characterized in avians. Moreover, recent studies have proposed that an increased permeability in the intestine due to some insult can induce inflammation in peripheral organs such as the brain. Allopurinol, a relatively toxic purine analogue that serves as a xanthine oxidase inhibitor, reduces urate levels which can …
Food Availability Modulates Temperature-Dependent Effects On Growth, Reproduction, And Survival In Daphnia Magna, Gustavo S. Betini, Xueqi Wang, Tal Avgar, Matthew M. Guzzo, John M. Fryxell
Food Availability Modulates Temperature-Dependent Effects On Growth, Reproduction, And Survival In Daphnia Magna, Gustavo S. Betini, Xueqi Wang, Tal Avgar, Matthew M. Guzzo, John M. Fryxell
Wildland Resources Faculty Publications
Reduced body size and accelerated life cycle due to warming are considered major ecological responses to climate change with fitness costs at the individual level. Surprisingly, we know little about how relevant ecological factors can alter these life history trade‐offs and their consequences for individual fitness. Here, we show that food modulates temperature‐dependent effects on body size in the water flea Daphnia magna and interacts with temperature to affect life history parameters. We exposed 412 individuals to a factorial manipulation of food abundance and temperature, tracked each reproductive event, and took daily measurements of body size from each individual. High …