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Articles 1 - 30 of 2513
Full-Text Articles in Animal Sciences
Providing Proteins To Belizean Residents Through Poultry Products, Ellis Freel
Providing Proteins To Belizean Residents Through Poultry Products, Ellis Freel
Poultry Science Undergraduate Honors Theses
Belize is a food insecure, developing country. Although Belize has plenty of nutritious food in-country, the exportation of that food to generate income contributed to a distribution issue of that nutritious food. More impoverished areas of Belize do not have access to nutritious food because of the lack of affordability and high export rates. Diets with a lack of food, or lack of balanced, nutritious food can negatively impact growth and cognitive development, especially in children. Poultry is one of the only products in Belize not able to be exported. Implementing poultry into Belizean diets would affordably alleviate food insecurity …
Climate Change-Associated Declines In Water Clarity Impair Feeding By Common Loons, Walter H. Piper, Max R. Glines, Kevin C. Rose
Climate Change-Associated Declines In Water Clarity Impair Feeding By Common Loons, Walter H. Piper, Max R. Glines, Kevin C. Rose
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Climate change has myriad impacts on ecosystems, but the mechanisms by which it affects individual species can be difficult to pinpoint. One strategy to discover such mechanisms is to identify a specific ecological factor related to survival or reproduction and determine how that factor is affected by climate. Here we used Landsat imagery to calculate water clarity for 127 lakes in northern Wisconsin from 1995 to 2021 and thus investigate the effect of clarity on the body condition of an aquatic visual predator, the common loon (Gavia immer). In addition, we examined rainfall and temperature as potential predictors …
A Year Of Wins For Farmed Animals, Lewis Bollard
A Year Of Wins For Farmed Animals, Lewis Bollard
General – Farm Animal Issues
Although the European Union shelved its ambitious farmed animal welfare reforms, there were other “wins” for farmed animals in 2023. There were 130 new corporate pledges to eliminate cages for laying hens and the worst abuses of broiler chickens. So far, over 1,000 corporate pledges have been fully implemented, and 39% of American hens, 60% of European hens, and 80% of British hens are cage-free, up from 6%, 41%, and 48%, respectively, a decade ago. The US Supreme Court upheld California’s Proposition 12, which bans the sale of eggs, pork, and veal from caged animals and their offspring in California. …
Impact Of Reducing Ammonia Concentration By Ozone Technology And Its Potential Improvement On Broiler Performance, Odilpio Quintana Ortega
Impact Of Reducing Ammonia Concentration By Ozone Technology And Its Potential Improvement On Broiler Performance, Odilpio Quintana Ortega
Graduate Theses and Dissertations
The employment of ozone in livestock production as a means of mitigating ammonia is used for enhancing air quality within animal confinement facilities, such as swine or poultry barns. Ammonia is a byproduct of animal excrement. Elevated ammonia concentrations can adversely affect the well-being of both animals and humans. The aim of this thesis was to investigate the effects of Ozone Technology Machine Unit (OTMU) utilization in poultry barns regarding ammonia concentration and its potential benefit in terms of broilers performance and welfare. In recent years, there has been a significant boom in technological advances. New devices that help mitigate …
In Vitro And In Vivo Evaluation Of Antimicrobial Activity, Oocyst Sporulation Rate, Oocyst Integrity And Oocyst Infectivity In Eimeria Maxima M6 Oocyst Suspensions Treated With Chlorhexidine Salts In Comparison With Potassium Dichromate, Lauren Laverty
Graduate Theses and Dissertations
Eimeria species oocysts cause coccidiosis, one of the costliest diseases in the poultry industry. Coccidiosis infections cause significant economic losses due to reduced performance in chickens and turkeys. The objective of this thesis was to determine fecal bacterial recovery from chlorhexidine (CHX) salt suspensions containing Eimeria maxima M6 oocysts and evaluate the effect of CHX salts on oocysts during long-term cold storage. For bacterial recovery experiments, CHX digluconate and CHX gluconate were tested at different concentrations on poultry fecal slurries during oocyst shedding. Eimeria maxima M6 oocysts were evaluated in CHX salt suspensions to test the effect on oocyst degradation …
Assessment Of Dietary Energy And Amino Acid Diet Formulation In The Modern Broilers, Matheus Freitas Costa
Assessment Of Dietary Energy And Amino Acid Diet Formulation In The Modern Broilers, Matheus Freitas Costa
Graduate Theses and Dissertations
As a result of the advancement of genetics, understanding broiler requirements for dietary energy and amino acids is essential for improving live performance and carcass characteristics. The energy system used to formulate diets in poultry is based on metabolizable energy (ME); this equation can be described as the total amount of energy in the feed minus gases and feces. However, the net energy (NE) system may be the best depiction of the energy utilized by birds for production and maintenance purposes once the heat increment (HI) is measured. Thus, a series of studies were conducted to establish the responsiveness of …
Renovating The Ipmu Via Internet Of Things For Pollutant Emission Estimations In Poultry Facilities, Joshua Dotto
Renovating The Ipmu Via Internet Of Things For Pollutant Emission Estimations In Poultry Facilities, Joshua Dotto
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
The emissions of ammonia (NH3), particulate matter (PM2.5), and carbon dioxide (CO2) are major concerns in poultry facilities. They can pose environmental concerns and nuances. Robust and affordable measurement systems are needed to accurately measure in-barn concentrations and quantify the emissions.
The Intelligent Portable Monitoring Unit (iPMU or PMU3) developed in 2016 was reconstructed into PMU4 to include upgraded NH3 and PM2.5 sensors and wireless connectivity for a low-cost, robust, and accurate air quality monitoring device with contactless data transfer using the concept of Internet of Things (IoT). In addition, a user-friendly …
Keynote Address: Seasonal Changes In The Avian Community Of The Wright State Woods, Jeffrey L. Peters
Keynote Address: Seasonal Changes In The Avian Community Of The Wright State Woods, Jeffrey L. Peters
Runkle Woods Symposia
Dr. Jeffrey Peters is a Professor of Biological Sciences at Wright State University. He earned his B.S. in Biology at Indiana University of Pennsylvania. For his M.S. in Applied Ecology and Conservation Biology at Frostburg State University in Maryland, Dr. Peters used DNA analyses to examine mating strategies in a species of duck, the Gadwall. Continuing his genetics research, he studied geographic variation in ducks for his Ph.D. in Biology at the University of Maryland, Baltimore County. Dr. Peters continued this work at the University of Alaska, Fairbanks, as a post-doctoral researcher, and at Wright State University. During his career, …
Understanding Functional Benefits Of Isoleucine And Arginine On Poultry Performance And Health., Roshan Adhikari, Jason T. Lee, Keith Haydon
Understanding Functional Benefits Of Isoleucine And Arginine On Poultry Performance And Health., Roshan Adhikari, Jason T. Lee, Keith Haydon
Proceedings of the Arkansas Nutrition Conference
Poultry industry is rapidly moving towards utilizing the best ingredients to precisely feed the birds for better performance, welfare, health, and profitability. One of the practices that evolved over time with research is better optimization of amino acid utilization in the diets thus changing the crude protein landscape. Historically, if we compare the modern diets to diets from 1980, significant changes are visible in the use of unbound or crystalline amino acids leading to reduced levels of CP and reduced unutilized nitrogen in the diets. Multiple feed-grade amino acids are available in a cost-effective manner in poultry diets. Multiple research …
Corrigendum To “Nigella Sativa As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens” [Poult.Sci.102 (8) (2023) 102831], Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel E. Greene, Xiuping Jiang
Corrigendum To “Nigella Sativa As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens” [Poult.Sci.102 (8) (2023) 102831], Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel E. Greene, Xiuping Jiang
Publications
No abstract provided.
Feed Formulation: Expanding Our Horizons Beyond The Simple Provision Of Least-Cost Diets, Rick Kleyn, Mariana Ciacciariello
Feed Formulation: Expanding Our Horizons Beyond The Simple Provision Of Least-Cost Diets, Rick Kleyn, Mariana Ciacciariello
Proceedings of the Arkansas Nutrition Conference
Commercial feed formulation is typically based on linear programming (LP) algorithms that derive a least-cost solution for a blend of ingredients that meet specific nutrient criteria. This methodology has been effectively used for decades, but how we achieve our primary goal, which is sustainable poultry production, needs to be reconsidered in broader terms. Some of the issues that this paper will deal with are: not all parameters that we consider are linear and additive; we are still unsure of how to build the matrix required for feed formulation; dealing with the variability encountered in every batch of ingredient remains a …
Reducing Feed’S Environmental Footprint: Where Are The Opportunities?, Lara Moody
Reducing Feed’S Environmental Footprint: Where Are The Opportunities?, Lara Moody
Proceedings of the Arkansas Nutrition Conference
Working with animal food industry members and stakeholders up- and down-stream in the supply chain, the Institute for Feed Education and Research (IFEEDER) developed a ‘Sustainability Road Map’ to support the U.S. animal food industry as it pursues continuous improvement on impacts important to industry members and their customers. For IFEEDER and the American Feed Industry Association (AFIA), sustainability is defined and managed by each individual organization to deliver measurable, continuous improvements on the impacts related to people, planet and governance that are most important to them and their stakeholders.
No Antibiotic Ever (Nae) Versus Conventional Broiler Production: It’S Complicated, Marcos H. Rostagno
No Antibiotic Ever (Nae) Versus Conventional Broiler Production: It’S Complicated, Marcos H. Rostagno
Proceedings of the Arkansas Nutrition Conference
Broiler production has evolved significantly over the years to meet a constant growing demand for animal protein. Rooted on major advances in genetics, facilities and environmental conditions, management, and specially, in nutrition and health, the U.S. broiler industry improved tremendously in productivity and efficiency, clearly demonstrated by a marked reduction of the average market age (i.e., days to market), while significantly increasing average market weight, breast meat yield and feed efficiency (National Chicken Council, 2023). For decades, conventional broiler production was dominant, with extensive use of antibiotics to promote growth and manage disease challenges (prevention and control). However, concerns over …
Organic Trace Minerals In Environmentally Sustainable Systems, Sergio L. Vieira, Julmar C. Feijó, André Favero
Organic Trace Minerals In Environmentally Sustainable Systems, Sergio L. Vieira, Julmar C. Feijó, André Favero
Proceedings of the Arkansas Nutrition Conference
Essential trace minerals (Zn, Cu, Fe, Mn, Se and I) are traditionally included as supplements through mineral premixes in poultry feeds. In comparison to other essential nutrients, as well as energy, they are scarcely studied. The essentiality of a nutrient, by definition, refers to the nutrient role in normal body function, such as growth or egg production, and considers that they cannot be synthesized by the body and, therefore, must be supplied from the feed.
Application Of New Molecular Tools To Assess Virus Viability In Production Animals, Declan C. Schroeder
Application Of New Molecular Tools To Assess Virus Viability In Production Animals, Declan C. Schroeder
Proceedings of the Arkansas Nutrition Conference
Persistent viral infections routinely impose an inconvenient, always costly but thankfully not all too often catastrophic outcome on our modern food system. Managing viruses is key for all concerned if our objective is to meet the ever-growing demand to high-value animal protein. Whether it’s the impact influenza A virus (IAV) has on the avian or swine industries, Porcine reproductive and respiratory virus (PRRSV) on the swine or Deformed wing virus (DWV) on honey bees in both the honey and pollinator sectors - the negative impact and damaging cost to the individual producer, country and global economy cannot be overstated.
A View Of Poultry Production In The Americas, Michael Donohue
A View Of Poultry Production In The Americas, Michael Donohue
Proceedings of the Arkansas Nutrition Conference
The primary goal of the presentation is to share a long-term overview of how broiler production has changed over the last 35 years in areas of bird performance, production costs, particularly in the area of feed ingredient cost per lb. and illustrating how poultry nutritionists have adapted feed formulations to meet the changes in performance and cost.
The Nebraska Bird Review (September 2023) 91(3), Whole Issue
The Nebraska Bird Review (September 2023) 91(3), Whole Issue
Nebraska Bird Review
Summer Field Report, June–July 2023, by W. Ross Silcock
2023 Limpkin at Crystal Cove Park, Dakota County, NE, by Bill Huser
2022 (34th) Report of the NOU Records Committee, by Mark A. Brogie
Subscription and Organization Information
2022 (34th) Report Of The Nou Records Committee, Mark A. Brogie
2022 (34th) Report Of The Nou Records Committee, Mark A. Brogie
Nebraska Bird Review
The functions and methods of the Nebraska Ornithologists’ Union Records Committee (NOURC) are described in its bylaws (NOURC 2010). The committee’s purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska. Species for which the NOURC seeks documentation (NOURC Review List) can be found at the NOU website www.NOUbirds.org. Starting in 2020, the NOURC decided to deal mainly with those species deemed as Accidental on the “Official List of the Birds of Nebraska.” Casual species and out-of-range species are now summarized in the “Seasonal Reports” of the …
2023 Limpkin At Crystal Cove Park, Dakota County, Ne, Bill Huser
2023 Limpkin At Crystal Cove Park, Dakota County, Ne, Bill Huser
Nebraska Bird Review
On the morning of October 7, 2023, I observed Nebraska’s second Limpkin (Aramus guarauna) at Crystal Cove Park in South Sioux City, and the bird was subsequently seen by several other observers throughout that afternoon. Photo and video records were obtained (https://ebird.org/checklist/S151656716). The summer and fall of 2023 brought fourteen sightings to Iowa, though it is impossible to determine how many birds were involved (eBird, 2023). One of those sightings occurred in the northwestern part of the state at Bacon Creek Park in Sioux City when a single Limpkin was independently reported by two observers on …
Summer Field Report, June–July 2023, W. Ross Silcock
Summer Field Report, June–July 2023, W. Ross Silcock
Nebraska Bird Review
There were no new species for Nebraska. This was also a lean season for records of species with few Nebraska records. Probably most significant were continuing Common Ravens in two Sioux Co locations, and possibly the first summer records of Baird’s Sparrow, a recording of the latter currently under NOURC review.
Within-state breeders nesting at new locations. There were several instances of nesting reported away from known breeding areas. These include documented records of first nesting Black-necked Stilts in Cherry Co, Least Terns off river at Offutt Base Lake in Sarpy Co, Mississippi Kite in Adams Co, Yellow-throated Vireo in …
Evaluation Of The Virulence Potential Of Avian Pathogenic Escherichia Coli Isolated From Broiler Breeders With Colibacillosis In Mississippi, Jiddu Joseph
Theses and Dissertations
Avian pathogenic Escherichia coli (APEC) is a bacterium that is responsible for colibacillosis in birds. However, information about broiler breeder APEC isolates is limited, but the data is critical due to the transfer of this bacteria down the production pyramid to progenies resulting in high mortality. Therefore, we evaluated the phenotypic virulence characteristics of 28 isolates using embryo lethality and day-old chick challenge assays. Also, the in vitro adhesion and invasion potential of selected nine isolates were identified. Results showed more than 1/3rd of the isolates were highly virulent and the virulence increased as the number of virulence-associated genes …
Evaluation Of Bone And Muscle Quality In Laying Hens Using Quantitative, Radiographic, Computed Tomographic, Biomechanical, And Tissue Level Measures, Cerano Harrison
Evaluation Of Bone And Muscle Quality In Laying Hens Using Quantitative, Radiographic, Computed Tomographic, Biomechanical, And Tissue Level Measures, Cerano Harrison
All Dissertations
Bone quality is an important measure of welfare in laying hens for researchers, veterinarians, and commercial producers who bear the responsibility of providing them with care. Breeding practices that have resulted in high egg productivity of laying hen strains have resulted in an increased susceptibility to developing osteoporosis. Osteoporosis, a decrease in mineralized bone, is accompanied by increased bone fragility that can lead to potentially painful bone fractures that can inhibit some aspects of the birds natural living, respiration and flight being two examples. Current methods of examining laying hen bone quality involve the implementation of diagnostic imaging and biomechanical …
Effect Of Authentic Kefir And Nigella Sativa On Broilers Challenged By Coccidia And Clostridium Perfringens, Julian E. Nixon
Effect Of Authentic Kefir And Nigella Sativa On Broilers Challenged By Coccidia And Clostridium Perfringens, Julian E. Nixon
All Dissertations
Black seed oil concentrations of 0%, 0.1%, 1% and 5% were added to milk inoculated with kefir grains and incubated at 25°C for 22 h. The pH and microbial count indicated 1% black seed oil caused low inhibition (P > 0.05) of fermentation, but 5% black seed oil caused significant inhibition of the kefir microorganisms (P < 0.05).
Cobb 500 male chicks (n = 256) were distributed in a randomized block design and received one of four treatments: CTRL1 (Non-medicated, no kefir, no Clostridium perfringens), CTRL2 (Non-medicated, no kefir, C. perfringens inoculated), CTRL3 (BMD medicated, no kefir, C. perfringens inoculated), KTRT (Non-medicated, …
Anthropogenic Factors Affecting Common Raven Occurrence And Depredation Of Artificial Nests Within Greater Sage‐Grouse Habitat In Southern Utah, Zoë S. Moffett
Anthropogenic Factors Affecting Common Raven Occurrence And Depredation Of Artificial Nests Within Greater Sage‐Grouse Habitat In Southern Utah, Zoë S. Moffett
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Certain species of wildlife are more generalist and adaptive than others. These species often flourish when supported by human activities that provide additional food and habitat for them. The common raven (Corvus corax; hereafter raven) is one such species; their populations have risen and spread throughout the Intermountain West. As generalist scavengers and predators, ravens have been found to pose a severe threat to several threatened or sensitive species, including the greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse). The purpose of my research was to determine the specific anthropogenic and habitat factors that may increase the threat …
Genetic Considerations For The Conservation Of The Red Junglefowl, Courtney Lee Mcpheron
Genetic Considerations For The Conservation Of The Red Junglefowl, Courtney Lee Mcpheron
University Honors Theses
The undomesticated wild populations of our domestic species deserve heightened consideration when it comes to their conservation. Not only do they carry significant socio-cultural and economic roles, but they offer an exceptionally unique case study for population genetics. The red junglefowl (Gallus gallus) of southern and south-eastern Asia is considered to be the living ancestor and progenitor of the domestic chicken. This literature review examines how published research has evaluated its genetic relationship with the chicken and implications for its conservation. A special emphasis is given to the threat of genetic introgression with domestic and feral chicken populations …
Nou Spring Field Days And Annual Meeting. Valentine, May 5-7, 2023
Nou Spring Field Days And Annual Meeting. Valentine, May 5-7, 2023
Nebraska Bird Review
The NOU Annual Meeting and Spring Field Days was held in Valentine on May 5-7, 2023, with 50 in attendance. Our meetings and meals took place in the Niobrara Lodge. Field trips were led by Robin Harding, William Flack, T. J. Walker, Dave Heidt, Mark Brogie and Don and Janis Paseka. Destinations included Thomas Creek WMA, Cub Creek Recreation Area, the Niobrara Valley Preserve (TNC Property), the river road from Meadville (SW of Springview) to Norden, the Valentine City Park, Valentine Fish Hatchery, Ft. Niobrara NWR, Anderson Bridge WMA, the Minnechaduza Creek crossing north of Kilgore, Steer Creek, Merritt Reservoir, …
Spring Field Report, March - May 2023, W. Ross Silcock
Spring Field Report, March - May 2023, W. Ross Silcock
Nebraska Bird Review
First off, I want to reiterate that reports compiled for this Spring Seasonal Report are evaluated against current knowledge as presented in Birds of Nebraska-Online (“BONO”; https://birds.outdoornebraska.gov/). Species whose reports do not add new information on distribution, early or late dates, etc., are listed as having “Routine reports”. Please let me know at silcock@rosssilcock.com if you have information that is not in BONO, or if you have additions and/or corrections of information in BONO. Another reminder: if evidence of breeding is observed, please enter the appropriate descriptor in your eBird checklist under “Breeding and Behavior Code”. These descriptors can be …
The Nebraska Bird Review: A Magazine Of Ornithology Of The Nebraska Region. Volume 91 June 2023 Number 2
Nebraska Bird Review
Spring Field Report, March - May 2023 by W. Ross Silcock …46
Correction to 2022-2023 Christmas Bird Count tally ….70
Rethinking the Status and Temporal Occurrence of the American Woodcock in Nebraska because of its Unusual Life History by Joel G. Jorgensen and Stephen J. Brenner …71
NOU Spring Field Days and Annual Meeting in Valentine, May 5-7, 2023 …..84
Subscription and Organization Information …91
Rethinking The Status And Temporal Occurrence Of The American Woodcock In Nebraska Because Of Its Unusual Life History, Joel G. Jorgensen, Stephen J. Brenner
Rethinking The Status And Temporal Occurrence Of The American Woodcock In Nebraska Because Of Its Unusual Life History, Joel G. Jorgensen, Stephen J. Brenner
Nebraska Bird Review
Historical distribution and range expansion -- We reviewed existing information to evaluate conclusions by previous authors (e.g., Sharpe et al. 2001, Silcock and Jorgensen 2023) that woodcock have expanded their range west since settlement of Nebraska by Euro-Americans. We also provide additional context about the species’ distribution over time using regional resources.
Temporal occurrence and abundance -- We used data from woodcock outfitted with satellite transmitters 2021-2022 and compared it with occurrence data from two sources, eBird (eBird.org 2023) from all years through 2022 and the SFRs in the Nebraska Bird Review 1994–2019. We chose not to use SFR data …
Nigella Sative As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens, Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel K. Greene, Xiuping Jiang
Nigella Sative As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens, Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel K. Greene, Xiuping Jiang
Publications
The poultry industry has significant coccidiosis and necrotic enteritis (NE) challenges, leading to high mortality and unacceptable growth without antibiotic treatment. This research explored supplementing Nigella sativa (black cumin) seed oil in poultry feed to mitigate coccidiosis and prevent or lessen NE in broilers. In vivo studies consisted of 384 and 320 Cobb 500 male broiler chicks distributed in a randomized complete block experimental design for trials 1 and 2, respectively. The first trial compared 3 concentrations (1, 2, and 5 mL/kg) of black cumin seed oil (BCSO), and trial 2 compared 2 concentrations (2 and 5 mL/kg) BCSO, with …