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Effect Of Winter Grazing Management Of Stockpiled Native Pastures Of Basaltic Soils Of Uruguay On Daily Gains Of Heifers, G. Pigurina, R. Castells, G. Reyes, E. J. Berretta

IGC Proceedings (1977-2023)

The effect of three grazing systems of fall stockpiled native pastures on the winter gains of 66 Hereford heifers (135 kg) was studied. Treatments were: continuos grazing (CG); (C7) the plot was divided in 12 and each was grazed for 7 days and (C28), the plot was divided in 3 and each were grazed for 28 days. Heifers were weighed every 14 days and grazing behaviour was recorded. Stockpiled HM was greater (P< 0.05) in C7 and C28 than in CG (988, 912, and 604 kg DM/ha, respectively). Herbage allowance (HA) was greater (P< 0.01) in CG followed by C28 and C7 (11.7, 6.6 and 5.9 kg DM/100 kg LW, respectively). Post-grazing HM was greater (P0.05) in all pastures (CP 10.2%, NDF 71.2%, ADF 41.3% and ash 14.4%). Final LW of heifers were similar (P> 0.05) (167, 162 and 160 kg for CG, C7 and C28, respectively). A very mild winter favoured exceptional gains which tended to be higher in CG (0.353 …

Influence Of Stocking Rate And Grazing System On Lamb Performance Of Mixed Oat And Ryegrass Swards In Uruguay, Fabio Montossi, R. San Julián, C. Arocena, A. Dighiero

IGC Proceedings (1977-2023)

An experiment was conducted at INIA-Tacuarembó Research Station (Uruguay) during 15 June to 4 October 1998, using a Avena Sativa (oat) and Lolium multiflorum (ryegrass) sward to examine the effect of stocking rate (SR; 25 and 35 lambs/ha) and grazing system (GS; strip and 7 days rotational grazing) on sward and lamb performance. SR had a significant effect on lamb performance, being higher the liveweight gain (LWG; 120 vs 98 g/a/d, P < 0.01), hot carcass weight (HCW; 17.7 vs 16.1 kg/a, P < 0.05) and carcass fat cover (GR; 12 vs 8 mm, P < 0.01) of those lambs managed at the lower SR. At the high SR, lambs increased grazing time (405 vs 376 min., P < 0.05). SG did not affect lamb performance, but strip GS reduces lamb grazing time (367 vs 414 min., P < 0.01) and biting rates (22 vs 24 bites/lamb/min., P < 0.01). Post grazing sward height (SH) was highly associated with LWG (LW = - 101,7 + 32.7 SH – 1.49 SH², R² = 0.66). This experiment demonstrated that: (a) the productive potential of ryegrass and oat swards to produce high quality …

Productivity And Composition Of Two Improved Native Pastures Under Different Grazing Managements In Uruguay, D. F. Risso, E. J. Berretta, G. Carracelas

IGC Proceedings (1977-2023)

Two improved native pastures were established by phosphoric (P) fertilisation and oversowing of: white clover (Trifolium repens) mixed with birdsfoot trefoil (Lotus corniculatus) (TbL) and annual lotus (Lotus subbiflorus) (Rin). Such pastures were evaluated during 5 years with steers at two stocking rates (High and Low) and two grazing managements (Rotational and Alternate). Presence of legumes was high and botanical changes were favourable in both pastures that evidenced good persistence. Daily liveweight gains of steers and total animal production were high in both pastures, but significantly (P≤ 0.05) higher in TbL. No significant differences …

Opening A Window To Evolution: David Angelini’S Research On Genetic Adaptation Gets Push From Mcvey Data Science Initiative, Christina Nunez

Colby Magazine

Most people think of soapberry bugs as little more than a nuisance, if they think of them at all. Found across much of the southeastern United States, the oblong insect is harmless to humans and likes to hang out on plants native to the soapberry family, hence its straightforward name.

Banned But Still Toxic: Gail Carlson Serves Notice That Chemical In Ski Racers' Waxes Still Lurk At The Starting Line, Bill Donahue

Colby Magazine

We live in a chemical world, exposing ourselves all day long to scary toxins created in laboratories—to the traces of herbicide that lurk in our water, to the carcinogenic Teflon coating our cookware, and to the pesticides sprayed on our vegetables.

Q&Ai: Provost Margaret Mcfadden Discusses The New Davis Institute For Artificial Intelligence And How The Liberal Arts Can Shape The Future Of Ai, Laura Meader

Colby Magazine

Following the announcement in January of a $30-million gift from the Davis family and trustee of its charitable foundation Andrew Davis ’85, LL.D. ’15 to establish the Davis Institute for Artificial Intelligence, the first of its kind at a liberal arts college, Provost and Dean of Faculty Margaret McFadden sat down with Colby Magazine’s Laura Meader to better explain the institute and its developing academic program.

Europe Vs. United States: Consumer Resistance To Gm Crops From 1990-2010, Lauren R. Stashak

The Exposition

No abstract provided.

Irish Potato Famine: 1845-51, George Brown Iii

The Exposition

No abstract provided.

Case Study: Degenerative Joint Disease In Canines, Zachary B. Lawrence, Rusty Rogers, Emily Schmitt Lavin

Mako: NSU Undergraduate Student Journal

Degenerative joint disease (DJD) is the gradual degeneration of cartilage in joints, resulting in pain for the affected areas. This study focused on Lacy (name changed for privacy), a 10-year-old spayed female chihuahua mix, that was clinically diagnosed for DJD and treated by Dr. Rogers over a period of 15 months. DJD is typically treated through a combination of pharmacological management, nonpharmacological treatment, and changes in lifestyle. Pharmacological treatment utilized pain medications, such as Gabapentin and Tramadol. Nonpharmacological treatment and changes in lifestyle involve methods, such as maintaining an ideal body weight, to decrease pain and increase mobility. However, during …

Serving Beef In Usda Child Nutrition Programs In South Dakota: Development Of An Faq, Anna Barr, Mikayla Hardy, Andrea Alma, Heather Hopwood, Joanna Studt

SDSU Beef Day 2022 Summary Publication

Study Description:

The project occurred in partnership with four organizations representing state, tribal, and federal affiliations. The authors collaborated to compile and answer questions. Questions that were not answered by the authors’ organizations were asked to the SD Animal Industry Board and USDA Food Safety and Inspection Service.

Metabolic Sensing In Agrp Neurons Integrates Homeostatic State With Dopamine Signalling In The Striatum, Alex Reichenbach, Alexxai V. Kravitz, Et Al

Open Access Publications

Agouti-related peptide (AgRP) neurons increase motivation for food, however, whether metabolic sensing of homeostatic state in AgRP neurons potentiates motivation by interacting with dopamine reward systems is unexplored. As a model of impaired metabolic-sensing, we used the AgRP-specific deletion of carnitine acetyltransferase (

Immunogenicity And Protective Capacity Of A Virus-Like Particle Vaccine Against Chlamydia Trachomatis Type 3 Secretion System Tip Protein, Ct584, Everett Webster, Kyra W. Seiger, Susan B. Core, Amanda L. Collar, Hannah Knapp-Broas, June Graham, Muskan Shrestha, Sarah Afzaal, William M. Geisler, Cosette M. Wheeler, Bryce Chackerian, Kathryn M. Frietze, Rebeccah S. Lijek

Pathology Research and Scholarship

An effective vaccine against Chlamydia trachomatis is urgently needed as infection rates continue to rise and C. trachomatis causes reproductive morbidity. An obligate intracellular pathogen, C. trachomatis employs a type 3 secretion system (T3SS) for host cell entry. The tip of the injectosome is composed of the protein CT584, which represents a potential target for neutralization with vaccine-induced antibody. Here, we investigate the immunogenicity and efficacy of a vaccine made of CT584 epitopes coupled to a bacteriophage virus-like particle (VLP), a novel platform for Chlamydia vaccines modeled on the success of HPV vaccines. Female mice were immunized intramuscularly, challenged transcervically …

Invertebrate Grazing On Live Turtlegrass (Thalassia Testudinum): A Common Interaction That May Facilitate Fungal Growth, Anjali D. Boyd, Nia S. Walker, Stephanie R. Valdez, Y. Stacy Zhang, Andrew H. Altieri, Vladislav Gulis, Caitlin Crain, Brian Silliman

Biology

In coastal wetlands and tropical reefs, snails can regulate foundation species by feeding on marsh grasses and hard corals. In many cases, their impacts are amplified because they facilitate microbial infection in grazer-induced wounds. Whether snails commonly graze live plants and facilitate microbial growth on plants in tropical seagrass systems is less explored. On a Belizean Caye, we examined patterns in snail-generated grazer scars on the abundant turtlegrass (Thalassia testudinum). Our initial survey showed the occurrence of snail-induced scarring on live turtlegrass blades was common, with 57% of live leaves scarred. Feeding trials demonstrated that two of five common snails …

Bovine Respiratory Microbiota Of Feedlot Cattle And Its Association With Disease, Jianmin Chai, Sarah F. Capik, Beth Kegley, John T. Richeson, Jeremy G. Powell, Jiangchao Zhao

Animal Science Faculty Publications and Presentations

Bovine respiratory disease (BRD), as one of the most common and costly diseases in the beef cattle industry, has significant adverse impacts on global food security and the economic stability of the industry. The bovine respiratory microbiome is strongly associated with health and disease and may provide insights for alternative therapy when treating BRD. The niche-specific microbiome communities that colonize the inter-surface of the upper and the lower respiratory tract consist of a dynamic and complex ecological system. The correlation between the disequilibrium in the respiratory ecosystem and BRD has become a hot research topic. Hence, we summarize the pathogenesis …

Improved Chromosome-Level Genome Assembly Of The Glanville Fritillary Butterfly (Melitaea Cinxia) Integrating Pacific Biosciences Long Reads And A High-Density Linkage Map, Olli-Pekka Smolander, Daniel Blande, Virpi Ahola, Pasi Rastas, Jaakko Tanskanen, Juhana Kammonen, Vicencio Oostra, Lorenzo Pellegrini, Suvi Ikonen, Tad Dallas, Michelle F. Dileo, Anne Duplouy, Iihan Cem Duru, Pauliina Halimaa, Aapo Kahilainen, Suyog S. Kuwar, Sirpa O. Kärenlampi, Elvira Lafuente, Shiqi Luo, Jenny Makkonen, Abhilash Nair, Narua De La Paz Celorio-Mancera, Ville Pennanen, Annukka Ruokolainen, Tarja Sundell, Arja I. Tervahauta, Victoria Twort, Erik Van Bergen, Janina Österman-Udd, Lars Paulin, Mikko J. Frilander, Petri Auvinen, Marjo Saastamoinen

Faculty Publications

Background

The Glanville fritillary (Melitaea cinxia) butterfly is a model system for metapopulation dynamics research in fragmented landscapes. Here, we provide a chromosome-level assembly of the butterfly's genome produced from Pacific Biosciences sequencing of a pool of males, combined with a linkage map from population crosses.

Results

The final assembly size of 484 Mb is an increase of 94 Mb on the previously published genome. Estimation of the completeness of the genome with BUSCO indicates that the genome contains 92–94% of the BUSCO genes in complete and single copies. We predicted 14,810 genes using the MAKER pipeline and …

Myocardial Afterload Is A Key Biomechanical Regulator Of Atrioventricular Myocyte Differentiation In Zebrafish, Neha Ahuja, Paige Ostwald, Alex Gendernalik, Elena Guzzolino, Letizia Pitto, David Bark, Deborah M Garrity

Open Access Publications

Heart valve development is governed by both genetic and biomechanical inputs. Prior work has demonstrated that oscillating shear stress associated with blood flow is required for normal atrioventricular (AV) valve development. Cardiac afterload is defined as the pressure the ventricle must overcome in order to pump blood throughout the circulatory system. In human patients, conditions of high afterload can cause valve pathology. Whether high afterload adversely affects embryonic valve development remains poorly understood. Here we describe a zebrafish model exhibiting increased myocardial afterload, caused by vasopressin, a vasoconstrictive drug. We show that the application of vasopressin reliably produces an increase …

Serpinb3 (Scca1) Inhibits Cathepsin L And Lysoptosis, Protecting Cervical Cancer Cells From Chemoradiation, Songyan Wang, Cliff J Luke, Stephen C Pak, Victoria Shi, Liyun Chen, Jonathan Moore, Arlise P Andress, Kay Jayachandran, Jin Zhang, Yi Huang, Marina Platik, Anthony A Apicelli, Julie K Schwarz, Perry W Grigsby, Gary A Silverman, Stephanie Markovina

Open Access Publications

The endogenous lysosomal cysteine protease inhibitor SERPINB3 (squamous cell carcinoma antigen 1, SCCA1) is elevated in patients with cervical cancer and other malignancies. High serum SERPINB3 is prognostic for recurrence and death following chemoradiation therapy. Cervical cancer cells genetically lacking SERPINB3 are more sensitive to ionizing radiation (IR), suggesting this protease inhibitor plays a role in therapeutic response. Here we demonstrate that SERPINB3-deficient cells have enhanced sensitivity to IR-induced cell death. Knock out of SERPINB3 sensitizes cells to a greater extent than cisplatin, the current standard of care. IR in SERPINB3 deficient cervical carcinoma cells induces predominantly necrotic cell death, …

Lysoptosis Is An Evolutionarily Conserved Cell Death Pathway Moderated By Intracellular Serpins, Cliff J Luke, Stephanie Markovina, Misty Good, Ira E Wight, Brian J Thomas, John M Linneman, Wyatt E Lanik, Olga Koroleva, Maggie R Coffman, Mark T Miedel, Qingqing Gong, Arlise Andress, Marlene Campos Guerrero, Songyan Wang, Liyun Chen, Wandy L Beatty, Kelsey N Hausmann, Frances V White, James A J Fitzpatrick, Anthony Orvedahl, Stephen C Pak, Gary A Silverman

Open Access Publications

Lysosomal membrane permeabilization (LMP) and cathepsin release typifies lysosome-dependent cell death (LDCD). However, LMP occurs in most regulated cell death programs suggesting LDCD is not an independent cell death pathway, but is conscripted to facilitate the final cellular demise by other cell death routines. Previously, we demonstrated that Caenorhabditis elegans (C. elegans) null for a cysteine protease inhibitor, srp-6, undergo a specific LDCD pathway characterized by LMP and cathepsin-dependent cytoplasmic proteolysis. We designated this cell death routine, lysoptosis, to distinguish it from other pathways employing LMP. In this study, mouse and human epithelial cells lacking srp-6 homologues, mSerpinb3a and SERPINB3, …

Graphene Oxide Functionalized Biosensor For Detection Of Stress-Related Biomarkers, Erican Santiago, Shailu Shree Poudyal, Sung Y. Shin, Hyeun Joong Yoon

Michigan Tech Publications, Part 1

A graphene oxide (GO)-based cortisol biosensor was developed to accurately detect corti-sol concentrations from sweat samples at point-of-care (POC) sites. A reference electrode, counter electrode, and working electrode make up the biosensor, and the working electrode was functional-ized using multiple layers consisting of GO and antibodies, including Protein A, IgG, and anti-Cab. Sweat samples contact the anti-Cab antibodies to transport electrons to the electrode, resulting in an electrochemical current response. The sensor was tested at each additional functionalization layer and at cortisol concentrations between 0.1 and 150 ng/mL to determine how the current response differed. A potentiostat galvanostat device was …

Office Of Research, Economic Engagement And Outreach Update, January 26, 2022, Office Of Research, Economic Engagement And Outreach

Office of Research, Economic Engagement and Outreach

No abstract provided.

Office Of Research, Economic Engagement And Outreach Update, January 12, 2022, Office Of Research, Economic Engagement And Outreach

Office of Research, Economic Engagement and Outreach

No abstract provided.

The Antibody Response To Sars-Cov-2 Beta Underscores The Antigenic Distance To Other Variants, Chang Liu, Rita E Chen, Michael S Diamond, Et Al.

2020-Current year OA Pubs

Alpha-B.1.1.7, Beta-B.1.351, Gamma-P.1, and Delta-B.1.617.2 variants of SARS-CoV-2 express multiple mutations in the spike protein (S). These may alter the antigenic structure of S, causing escape from natural or vaccine-induced immunity. Beta is particularly difficult to neutralize using serum induced by early pandemic SARS-CoV-2 strains and is most antigenically separated from Delta. To understand this, we generated 674 mAbs from Beta-infected individuals and performed a detailed structure-function analysis of the 27 most potent mAbs: one binding the spike N-terminal domain (NTD), the rest the receptor-binding domain (RBD). Two of these RBD-binding mAbs recognize a neutralizing epitope conserved between SARS-CoV-1 and …

Contribution Of Annals Of Library And Information Studies In Scopus Database (2011-2021): An Analysis Bibliomatrice Study, Dheeraj Singh Negi

Library Philosophy and Practice (e-journal)

The paper is based on the bibliometric analysis of 44 issues of Annals of Library and Information Studies published during 2011 to 2021. Each issue published 9.74% research output by and large. Of the total 344 were retrieved from 44 issues of Four volumes with an average of 46.15 from Annals library journal in the period 2011-2021, in which year 2014 has got the highest number of publications i.e, 45 with an average article of 11.2 per issue India 263, Nigeria stands next with 24 contributions and Sri Lanka 15 contributors, Bangladesh with 09 contributions, Iran 07 contributions, South Africa …

Describing Cattle Grazing Distribution In Communal Rangelands Of The Eastern Cape South Africa: Towards Improving Livestock Rangeland Use, B. Gusha, A. R. Palmer

IGC Proceedings (1977-2023)

This study used global positioning systems (GPS) to understand grazing distribution of three cattle in the communal rangeland of Eastern Cape, South Africa. Free ranging cattle were randomly selected from participating households and were fitted with neck GPS collars, which recorded geographic position every five-minute interval during wet and dry season. The study identified three production domains where cattle were reported to be spending most of their time grazing, separated by bound polygons on google earth Pro to further extract MODIS EVI???. The recorded GPS points were loaded into google earth Pro to analyse the distribution of cattle grazing in …

Degradation Issue Of Fescue-Forbs Rangeland In The Mountain Steppe Of Mongolia, Otgontuya Lkhagvajav, Lkhagvajav Namdag, Munkhbat Chimed

IGC Proceedings (1977-2023)

The total area of Fescue-forbs rangeland in Mongolia is 10 million hectares, accounting for 8.5% of total rangeland area. The Fescue-forbs rangeland is the main type of rangeland in the mountain steppe. The Mongolian rangeland has degraded in the last two decades mainly due to overgrazing and climate change. The main objective of this study was to determine the change of plant community and reduction of frequency and productivity of the dominant species Festuca lenensis in different degradation states of rangeland. The dominant species and main plant functional groups have completely changed in Fescue-forbs rangeland in all three states of …

Observations On Regeneration Of The Pedipalp And Legs Of Scorpions, Martin Watz, Jason A. Dunlop

Euscorpius

An Opisthacanthus asper (Peters, 1861) (Hormuridae) shows a relatively rare example of pedipalp regeneration in which the lost tibia and tarsus was replaced by a smaller, curved element of uncertain homology to either the fixed or free finger. A comparable abnormal palp described in the literature hints that pedipalps can only regenerate a structure of this form, regardless of the site of amputation. An Olivierus caucasicus (Nordmann, 1840) (Buthidae) is described in which claws (pretarsus) of leg III regenerated directly at the distal end of the tibia, while in leg IV the claws regenerated at the end of a truncated …

Decomposition Rates Of Organic Material Across Herbivore Treatments In A Nutrient-Rich Semi-Arid Sodic Savanna, L. L. Erasmus, H. Van Coller, S. Claassens, F. Siebert

IGC Proceedings (1977-2023)

Decomposition is a major determinant of terrestrial nutrient cycling and therefore an important regulator of ecosystem structure and function. It has been widely documented that large mammalian herbivores (LMH) act as a significant driver of changes to aboveground structure and modifications to edaphic properties. Little is known about the role of herbivory, and particularly the loss thereof, in mediating essential ecological processes in a herbivore-adapted system. The Nkuhlu exclosures, a large-scale, long-term exclusion experiment in the Kruger National Park, South Africa, provided an opportunity to explore the effects of herbivory and/or its long-term exclusion on decomposition and stabilisation of detrital …

Stride-Level Analysis Of Mouse Open Field Behavior Using Deep-Learning-Based Pose Estimation., Keith Sheppard, Justin Gardin, Gautam S Sabnis, Asaf Peer, Megan Darrell, Sean P Deats, Brian Q Geuther, Cathleen Lutz, Vivek Kumar

Faculty Research 2022

Gait and posture are often perturbed in many neurological, neuromuscular, and neuropsychiatric conditions. Rodents provide a tractable model for elucidating disease mechanisms and interventions. Here, we develop a neural-network-based assay that adopts the commonly used open field apparatus for mouse gait and posture analysis. We quantitate both with high precision across 62 strains of mice. We characterize four mutants with known gait deficits and demonstrate that multiple autism spectrum disorder (ASD) models show gait and posture deficits, implying this is a general feature of ASD. Mouse gait and posture measures are highly heritable and fall into three distinct classes. We …

John Hall V. Millersville University

2022 Decisions

USDC for the Eastern District of Pennsylvania

Current Methods And Future Directions In Avian Diet Analysis, Brandon D. Hoenig, Allison M. Snider, Anna M. Forsman, Keith A. Hobson, Steven C. Latta, Eliot T. Miller, Michael J. Polito, Luke L. Powell, Samantha L. Rogers, Thomas W. Sherry, David P.L. Toews, Andreanna J. Welch, Sabrina S. Taylor, Brady A. Porter

Faculty Publications

Identifying the composition of avian diets is a critical step in characterizing the roles of birds within ecosystems. However, because birds are a diverse taxonomic group with equally diverse dietary habits, gaining an accurate and thorough understanding of avian diet can be difficult. In addition to overcoming the inherent difficulties of studying birds, the field is advancing rapidly, and researchers are challenged with a myriad of methods to study avian diet, a task that has only become more difficult with the introduction of laboratory techniques to dietary studies. Because methodology drives inference, it is important that researchers are aware of …