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Articles 1 - 30 of 17785
Full-Text Articles in Life Sciences
Meat, The Future: The Role Of Regulators In The Lab-Grown Revolution, Joseph B. Davault, Michael S. Sinha
Meat, The Future: The Role Of Regulators In The Lab-Grown Revolution, Joseph B. Davault, Michael S. Sinha
All Faculty Scholarship
The United States is one of the largest consumers of meat globally. The production of meat contributes substantially to climate change due to the levels of greenhouse gasses emitted and the amount of land, water, feed, and other natural resources required to raise animals used for meat. Traditional meat production is another major source for the emergence of zoonotic diseases and antimicrobial-resistant pathogens. Nevertheless, Americans consume more meat now than at any time in the nation’s history.
Advocates for policy change aimed at addressing the risks associated with meat production have typically focused on reducing meat consumption, alternatives to meat, …
Animal Science Research Report 2024 (Complete Report), Department Of Animal Science
Animal Science Research Report 2024 (Complete Report), Department Of Animal Science
Animal Science Research Report 2024
This is the complete proceedings of the South Dakota State University, Department of Animal Science Research Report 2024. The report contains research on ruminant, non-ruminant, and meat science.
Operation Shark: Addressing The Negative Portrayal Of Sharks In Media, Michael R. O'Shea
Operation Shark: Addressing The Negative Portrayal Of Sharks In Media, Michael R. O'Shea
Masters Theses
Sharks are some of the most well adapted and effective animals in the animal kingdom. Unfortunately, they are also some of the most feared. For many people the word shark evokes images of vicious attacks like those seen in movies such as Jaws. Sharks have also been negatively portrayed in the media. This negative portrayal of sharks has led to misconceptions about sharks that have damaged their populations. Efforts have been made to raise awareness and fight common misconceptions of sharks. However, many people still hold on to the incorrect ideas they have about sharks. This thesis will examine the …
Reassignment Of Some Caryospora Species (Apicomplexa: Eimeriidae) To Eumonospora (Apicomplexa: Sarcocystidae) And A Summary, Donald W. Duszynski
Reassignment Of Some Caryospora Species (Apicomplexa: Eimeriidae) To Eumonospora (Apicomplexa: Sarcocystidae) And A Summary, Donald W. Duszynski
MANTER: Journal of Parasite Biodiversity
This review was crafted to clear up some of the current confusion regarding the correct taxonomic placement of those apicomplexan coccidians that produce unique monosporocystic octosporozoic (1 sporocyst with 8 sporozoites) oocysts during the sexual phase of their life history in vertebrate hosts. Currently, such oocysts have been placed in 1 of 4 genera, Avispora, Caryospora, Karyospora, or Eumonospora, 2 of which are no longer accepted or useful (Avispora and Karyospora). My review suggests that to present (2023) there are 62 valid Caryospora and 26 valid Eumonospora species. Caryospora species are recorded from a bird …
Temporal And Spatial Influences On Fawn Summer Survival In Pronghorn Populations: Management Implications From Noninvasive Monitoring, Cole A. Bleke, Eric M. Gese, Juan J. Villalba, Shane B. Roberts, Susannah S. French
Temporal And Spatial Influences On Fawn Summer Survival In Pronghorn Populations: Management Implications From Noninvasive Monitoring, Cole A. Bleke, Eric M. Gese, Juan J. Villalba, Shane B. Roberts, Susannah S. French
Wildland Resources Student Research
Monitoring vital rates allows managers to estimate trends in growth rates of ungulate populations. However, connecting the influence of nutrition on ungulate demography is challenging. Noninvasive sampling offers a low-cost, low-effort alternative for measuring nutritional indices, allowing for an increased understanding of the mechanistic relationships between environmental factors, nutrition, and specific population vital rates. We examined the temporal influence of intrinsic and extrinsic factors on pronghorn (Antilocapra americana) fawn recruitment. We collected fresh fecal samples from adult female pronghorn in five subpopulations spanning three sampling periods associated with critical maternal life-history stages (late gestation, early lactation, breeding season) …
Eviction-Driven Infanticide And Sexually Selected Adoption And Infanticide In A Neotropical Parrot, Steven R. Beissinger, Karl S. Berg
Eviction-Driven Infanticide And Sexually Selected Adoption And Infanticide In A Neotropical Parrot, Steven R. Beissinger, Karl S. Berg
School of Integrative Biological and Chemical Sciences Faculty Publications and Presentations
Significance
Infanticide and adoption are puzzling forms of sexual conflict and cooperation, respectively. However, both may be explained by sexual selection, where an individual later reproduces with the parent whose offspring it killed or adopted. While sexually selected infanticide is well known, evidence for sexually selected adoption is anecdotal. Our long-term study of a parrotlet in Venezuela found infanticide attacks were mostly enacted by nonbreeding pairs attempting to evict parents from their nests to usurp the cavity. Infanticide attacks occurred less often at nests where a parent died, and adoption by stepparents was as common as infanticide. Becoming an adoptive …
Using Annual Forages To Replace Declining Cool-Season Grass Pasture Availability, Jonathon Matthew Jenkins
Using Annual Forages To Replace Declining Cool-Season Grass Pasture Availability, Jonathon Matthew Jenkins
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
As land area in grain crop production increases in the US Midwest, perennial pasture availability decreases but the demand increases. Matching the seasonal growth patterns of C3 and C4 plant species to grow forages that are complementary allows producers to fill production gaps in otherwise monoculture systems and possibly increase overall productivity. One way to fill the forage production gap of C3 grass dominated pastures is by producing a warm-season, annual forage in a separate field. However, with continual reductions in land availability, this may not be an option. Using two studies, our objectives were to improve …
Utilization Of The NuTrack System To Objectively Evaluate Changes In Active And Passive Behaviors Of Group-Housed Nursery Pigs Exposed To An Endotoxin Challenge, Aaron Holliday
Department of Animal Science: Dissertations, Theses, and Student Research
This study aimed to evaluate the changes in activity of group-housed, newly weaned pigs challenged with lipopolysaccharide (LPS). At weaning, pigs (n = 192, 5.73 ± 1.8 kg) were stratified by sex, litter, and body weight (BW) and randomly assigned to one of three treatments (16 pigs/pen, 4 pens/treatment): 1) Saline-injected (SAL), 2) 50% challenged [50%-LPS) – only half of the pigs in a pen (8 pigs) were challenged with LPS and 3) 100% challenged (100%-LPS) – all pigs in a pen were challenged with LPS. Pigs in the SAL and 32 in the 50%-LPS treatment received a 3.0 …
Adding Parasite Resistance To A Hair Sheep Breeding Objective, Bob Forbes
Adding Parasite Resistance To A Hair Sheep Breeding Objective, Bob Forbes
Department of Animal Science: Dissertations, Theses, and Student Research
The U.S. Hair Sheep Index was designed to increase total weight of lamb weaned per ewe lambing (TW) using estimated breeding values (EBV) for direct (DWWT) and maternal (MWWT) weaning weight, and number of lambs born (NLB) and weaned (NLW), as selection criteria. Producers are interested in adding post-weaning fecal egg count EBV (PFEC), an indicator of parasite resistance, to the index to achieve genetic change in both TW and PFEC.
First, the effects of adding PFEC alongside TW to the breeding objective of indexes that used either phenotypes or EBV as selection criteria were studied. Since MWWT is …
Comparative Accumulation And Effects Of Microplastics And Microplastic-Associated Pcb-153 In The White Hard Clam (Meretrix Lyrata) And Giant River Prawn (Macrobrachium Rosenbergii) Following Chronic Exposure, Bao-Son Trinh, Lien Thi Le, Loc Minh Tran, Gunther Rosen, Robert C. Hale
Comparative Accumulation And Effects Of Microplastics And Microplastic-Associated Pcb-153 In The White Hard Clam (Meretrix Lyrata) And Giant River Prawn (Macrobrachium Rosenbergii) Following Chronic Exposure, Bao-Son Trinh, Lien Thi Le, Loc Minh Tran, Gunther Rosen, Robert C. Hale
VIMS Articles
Global environmental abundance of microplastics (MPs) is increasing. MPs may sorb hydrophobic organic contaminants (HOCs), accumulate in and cause deleterious effects on exposed organisms. This study investigated and compared the accumulation and effects of MPs and MP-associated PCB in the two indigenous aquatic organisms in Viet Nam, the white hard clams, Meretrix lyrata, and the giant river prawns, Macrobrachium rosenbergii. The test organisms were exposed to either polyethylene microbeads (PEMBs), waterborne polychlorinated biphenyl 153 (PCB-153), or PEMB-associated PCB-153 (PEMB-PCB) over 28 days. Organismal MP accumulation, survival, and weight gain were examined at various sampling intervals. In general, MP …
Influence Of Beef Carcass Weight On Rate Of Desmin Proteolysis In Four Muscles, Clay J. Carlson, Christina E. Bakker, Keith R. Underwood, Amanda D. Blair, Judson K. Grubbs
Influence Of Beef Carcass Weight On Rate Of Desmin Proteolysis In Four Muscles, Clay J. Carlson, Christina E. Bakker, Keith R. Underwood, Amanda D. Blair, Judson K. Grubbs
Animal Science Research Report 2024
No abstract provided.
Effects Of Peri-Castration Pain Management Strategies On Feed And Water Intake, Performance, And Blood Cortisol Levels Of Weaned Beef Steers, Andrea K. Brandner, Cody L. Wright, Ana Clara B. Menezes
Effects Of Peri-Castration Pain Management Strategies On Feed And Water Intake, Performance, And Blood Cortisol Levels Of Weaned Beef Steers, Andrea K. Brandner, Cody L. Wright, Ana Clara B. Menezes
Animal Science Research Report 2024
No abstract provided.
Influence Of Vegetative Diversity During The Stocker Phase On Carcass Characteristics And Economic Returns Of Beef Steers, Sydni Borders, Jameson Brennan, Christina Bakker, Keith Underwood, Kyle Grubbs, John Jaeger, Ken Olson, Amanda Blair
Influence Of Vegetative Diversity During The Stocker Phase On Carcass Characteristics And Economic Returns Of Beef Steers, Sydni Borders, Jameson Brennan, Christina Bakker, Keith Underwood, Kyle Grubbs, John Jaeger, Ken Olson, Amanda Blair
Animal Science Research Report 2024
No abstract provided.
Influence Of Finishing Systems On Carcass Characteristics, Composition, And Fatty Acid Profile Of Bison Bulls, Clay J. Newton, Lydia M. O'Sullivan, Keith R. Underwood, Judson K. Grubbs, Christina E. Bakker, Kristi M. Cammack, Thu Dinh, Carter Kruse, Amanda D. Blair
Influence Of Finishing Systems On Carcass Characteristics, Composition, And Fatty Acid Profile Of Bison Bulls, Clay J. Newton, Lydia M. O'Sullivan, Keith R. Underwood, Judson K. Grubbs, Christina E. Bakker, Kristi M. Cammack, Thu Dinh, Carter Kruse, Amanda D. Blair
Animal Science Research Report 2024
No abstract provided.
Utilization Of Camera Grading Technology For Bison Carcass Characteristics, Christina Bakker, Jessica Sparks, Keith Underwood, Kyle Grubbs, Amanda D. Blair
Utilization Of Camera Grading Technology For Bison Carcass Characteristics, Christina Bakker, Jessica Sparks, Keith Underwood, Kyle Grubbs, Amanda D. Blair
Animal Science Research Report 2024
The objective of this study was to evaluate the ability of beef camera grading technology to assess characteristics of bison carcasses.
West Coast Rock Lobster Resource Harvest Strategy, Department Of Primary Industries And Regional Development, Western Australia
West Coast Rock Lobster Resource Harvest Strategy, Department Of Primary Industries And Regional Development, Western Australia
Fisheries management papers
Harvest strategies for Western Australia’s (WA) aquatic resources are formal documents developed by the Department of Primary Industries and Regional Development (DPIRD, the Department) to support decision-making processes that ensure the outcomes are consistent with the principles of Ecologically Sustainable Development (ESD; Fletcher 2002a) and Ecosystem Based Fisheries Management (EBFM; Fletcher et al. 2012). Harvest strategies are a key component of all contemporary fishery management systems and a requirement for certification under the Marine Stewardship Council (MSC). The objectives of ESD are reflected in the objectives of the Fish Resources Management Act 1994 (FRMA) and the Aquatic Resources Management Act …
Feeding Dried Distillers Grains With Solubles To Lactating Dairy Cattle: Whole Animal Energy Utilization And Manure Biogas Production, Grant Michael Fincham
Feeding Dried Distillers Grains With Solubles To Lactating Dairy Cattle: Whole Animal Energy Utilization And Manure Biogas Production, Grant Michael Fincham
Department of Animal Science: Dissertations, Theses, and Student Research
When DDGS are fed to lactating dairy cattle, the observed response in energy supply, milk production, and methane production varies among studies. One potential reason for these observed discrepancies is the nature of the diet formulation itself. Furthermore, little research has been conducted to examine how dietary changes can affect dairy cattle manure composition and methane production in an anaerobic manure digester. In order to gain a better understanding of these topics, we conducted two experiments. The first experiment was conducted to test how the manipulation of lactating dairy cattle diets affects energy utilization, milk production, methane production, and manure …
Artificial Insemination And Fetal Programming In Beef Production Systems, Dempster Christenson
Artificial Insemination And Fetal Programming In Beef Production Systems, Dempster Christenson
Department of Animal Science: Dissertations, Theses, and Student Research
Pregnancy to artificial insemination and late gestation fetal programming of the next calf crop are central to genetic development, reproductive longevity, calf crop productivity, and efficiency of cow/calf ranching. The purposes of this research are to find methods to improve pregnancy rate to artificial insemination, the growth and reproductive health of pregnant heifers, and the productivity of their offspring. In the first of four studies we found that extending the period of progesterone administration in an estrus synchronization protocol did not significantly hasten estrus response or increase pregnancy rate to artificial insemination, but timing of estrus within the melengestrol acetate …
The Impact Of A Pgym Variant On Myophosphorylase Deficiency In Red Angus Composite Cattle And Changes In The Skeletal Muscle Transcriptome Due To The Intramuscular Administration Of Lidocaine In Wether Lambs, Mackenzie Christin Batt
The Impact Of A Pgym Variant On Myophosphorylase Deficiency In Red Angus Composite Cattle And Changes In The Skeletal Muscle Transcriptome Due To The Intramuscular Administration Of Lidocaine In Wether Lambs, Mackenzie Christin Batt
School of Biological Sciences: Dissertations, Theses, and Student Research
Project 1 focused on eight calves in a Nebraska herd (composite Simmental, Red Angus, Gelbvieh) that displayed exercise intolerance during forced activity. Available sire pedigrees contained a paternal ancestor within 2-4 generations in all affected calves. Pedigrees of the calves’ dams were unavailable, however, the cows were ranch-raised and retained from prior breeding seasons, where bulls used for breeding occasionally had a common ancestor. Therefore, it was hypothesized that a de novo autosomal recessive variant was causative of exercise intolerance in these calves. A genome-wide association analysis followed by whole-genome sequencing led to the identification of a variant in the …
Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay Annual Progress Report: 2023 - 2024, Jack R. Buchanan, Mary C. Fabrizio, Troy D. Tuckey
Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay Annual Progress Report: 2023 - 2024, Jack R. Buchanan, Mary C. Fabrizio, Troy D. Tuckey
Reports
The 2023 juvenile Striped Bass abundance index was 4.26 and was significantly lower than the reference mean of 7.77 for the period 1980 to 2009. Abundance indices were below average in the James and Rappahannock rivers and average in the York River in 2023 compared with the river-specific reference means (1980-2009). Relatively low catches of young‐of‐the‐year Striped Bass from sites upriver and downriver of core nursery areas suggest juvenile Striped Bass largely remained within core nursery areas in 2023.
Indices of abundance were calculated for three additional economically and recreationally important fishes in Virginia waters. Juvenile White Perch abundance indices …
Virginia Game Fish Tagging Program: 2023 Annual Report, Susanna Musick, Lewis Gillingham
Virginia Game Fish Tagging Program: 2023 Annual Report, Susanna Musick, Lewis Gillingham
Reports
Through 2023, the Virginia Game Fish Tagging Program (VGFTP) has maintained a 28-year database of records for tagged and recaptured fish. The program is a cooperative project of the Virginia Saltwater Fishing Tournament (VSFT) under the Virginia Marine Resources Commission-(VMRC) and the Virginia InsƟtute of Marine Science (VIMS) of William & Mary (under the VIMS Marine Advisory Program).
The main goal of the program is to train and maintain an experienced group of anglers who volunteer their Ɵme to properly tag and release fishes. Data on tagged and recaptured fish are summarized in annual re- ports and are accessible on …
Cradle Explorer: Casfer Interactive Platform For Data And Model Visualization, Olatunde D. Akanbi, Vibha S. Mandayam, Haiping Ai, Arafath Nihar, Erika I. Barcelos, Laura S. Bruckman, Jeffrey Yarus, Yinghui Wu, Huichun (Judy) Zhang, Roger H. French
Cradle Explorer: Casfer Interactive Platform For Data And Model Visualization, Olatunde D. Akanbi, Vibha S. Mandayam, Haiping Ai, Arafath Nihar, Erika I. Barcelos, Laura S. Bruckman, Jeffrey Yarus, Yinghui Wu, Huichun (Judy) Zhang, Roger H. French
Student Scholarship
No abstract provided.
An Examination Of The Eastern Nebraska And Western Iowa Flash Flood Event Of 6-7 August 1999, Catherine M. Zapotocny
An Examination Of The Eastern Nebraska And Western Iowa Flash Flood Event Of 6-7 August 1999, Catherine M. Zapotocny
NOAA Technical Reports and Related Materials
Flash flooding occurs each summer in eastern Nebraska and western Iowa. While 10-inch rains are extraordinary, it is not uncommon to have at least one excessive rain event during the annual convective season. A significant flash flood occurred in east central Nebraska and western Iowa the night of August 6, 1999 into the morning of August 7, 1999. Antecedent hydrologic conditions limited the loss of life, however considerable property damage resulted as the heavy rain fell over the urbanized areas in eastern Nebraska and western Iowa.
Several flash flood ingredients came together over the area. These meteorological factors are typical …
Grazing On The Arizona Strip: Catchment History And Repair, Melanie Heaton
Grazing On The Arizona Strip: Catchment History And Repair, Melanie Heaton
All Current Publications
Water, not forage, is the limiting factor for wildlife and livestock grazing the Arizona Strip, a nearly 3-million-acre piece of land located north of the Grand Canyon and south of the Utah border. Since springs and groundwater are rare or absent, harvesting of natural precipitation is the main source of water for animals. Catchment systems, which capture precipitation on a sloped rubber apron and contain it in a large tank or lined pond, are used by government agencies and grazing permittees to efficiently provide water for wildlife and livestock. As catchments reach the end of their useful lives, tank replacement …
First-Time Market Goat, Ashley Longmore, Cheyenne Reid
First-Time Market Goat, Ashley Longmore, Cheyenne Reid
All Current Publications
This fact sheet is 4-H youth who are thinking about or have recently purchased their first 4-H goat. This fact sheet is a simple outline that provides information on selection, feeding, housing, basic care, and grooming.
First-Time Market Lamb, Ashley Longmore, Cheyenne Reid
First-Time Market Lamb, Ashley Longmore, Cheyenne Reid
All Current Publications
This fact sheet is 4-H youth who are thinking about or have recently purchased their first 4-H lamb. This fact sheet is a simple outline providing more information on selection, feeding, housing, basic care, and grooming.
First-Time Market Steer, Ashley T. Longmore, Cheyenne A. Reid
First-Time Market Steer, Ashley T. Longmore, Cheyenne A. Reid
All Current Publications
The target audience for this fact sheet is 4-H youth who are thinking about or have recently purchased their first 4-H steer. This fact sheet is a simple outline that will give them more information on selection, feeding, housing, basic care, and grooming.
First-Time Market Hog, Ashley T. Longmore, Cheyenne A. Reid
First-Time Market Hog, Ashley T. Longmore, Cheyenne A. Reid
All Current Publications
This fact sheet is for 4-H youth who are thinking about or have recently purchased their first 4-H hog. This fact sheet is a simple outline that will give them more information on selection, feeding, housing, basic care, and grooming.
Bull Production: Breeding Soundness Exam And Expected Progeny Differences, Ethan Gilliam
Bull Production: Breeding Soundness Exam And Expected Progeny Differences, Ethan Gilliam
All Current Publications
This fact sheet defines a breeding soundness exam (BSE) for a breeding bull and reviews the meaning of expected progeny differences (EPDs). Acronyms used and depended on by livestock producers are reviewed. Understanding the meaning of livestock acronyms is commonly overlooked. Highlights include how a producer makes financial decisions throughout the year in relation to their livestock.
Hilling As A Management Tactic And Tool For Understanding Soybean Gall Midge (Resseliella Maxima Gagné), Pragya Gupta
Hilling As A Management Tactic And Tool For Understanding Soybean Gall Midge (Resseliella Maxima Gagné), Pragya Gupta
Department of Entomology: Dissertations, Theses, and Student Research
Soybean gall midge (Resseliella maxima Gagné, SGM) emerged as a new species in the United States Midwest in 2019, causing injury to soybean (Glycine max L.) Infestation of R. maxima starts with females laying eggs in the fissures or cracks that develop at the base of soybean during the V2-V3 growth stage. The emerged larvae feed on the stem internally, leading to wilting and death of the plants. With knowledge gaps in biology and behavior, management strategies for this pest are challenging. Hilling is a cultural practice causing soil to cover the base of stems and is …