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Articles 1 - 30 of 611
Full-Text Articles in Animal Sciences
Genetic And Genomic Analysis Of Hyperlipidemia, Obesity And Diabetes Using (C57bl/6j × Tallyho/Jngj) F2 Mice, Taryn P. Stewart, Hyoung Y. Kim, Arnold M. Saxton, Jung H. Kim
Genetic And Genomic Analysis Of Hyperlipidemia, Obesity And Diabetes Using (C57bl/6j × Tallyho/Jngj) F2 Mice, Taryn P. Stewart, Hyoung Y. Kim, Arnold M. Saxton, Jung H. Kim
Nutrition Publications and Other Works
Background
Type 2 diabetes (T2D) is the most common form of diabetes in humans and is closely associated with dyslipidemia and obesity that magnifies the mortality and morbidity related to T2D. The genetic contribution to human T2D and related metabolic disorders is evident, and mostly follows polygenic inheritance. The TALLYHO/JngJ (TH) mice are a polygenic model for T2D characterized by obesity, hyperinsulinemia, impaired glucose uptake and tolerance, hyperlipidemia, and hyperglycemia.
Results
In order to determine the genetic factors that contribute to these T2D related characteristics in TH mice, we interbred TH mice with C57BL/6J (B6) mice. The parental, F1, and …
Replacement Of Grazed Forage With Wdgs And Poor Quality Hay And Straw Mixtures, Sandra B. Villasanti
Replacement Of Grazed Forage With Wdgs And Poor Quality Hay And Straw Mixtures, Sandra B. Villasanti
Department of Animal Science: Dissertations, Theses, and Student Research
A grazing study was conducted at the University of Nebraska Gudmundsen Sandhills Laboratory from mid-June to late-August across two years (2009 and 2010) to evaluate the effects of supplementation with mixtures of wet distillers grains (WDGS) and straw or hay on grazed forage intake. Twenty 1 ha paddocks replicated over two blocks were randomly assigned to one of four treatments: Control (CON) at the recommended stocking rate (1.68 AUM/ha in 2009 and 1.64 AUM/ha in 2010), and three double stocked treatments supplemented with 60% straw and 40% WDGS (STRAW), 60% hay and 40% WDGS (LOW), and 70% hay and 30% …
Ua66/5/1 Ogden College Of Science & Engineering Agriculture Student Organizations, Wku Archives
Ua66/5/1 Ogden College Of Science & Engineering Agriculture Student Organizations, Wku Archives
WKU Archives Collection Inventories
Records created by and about Agriculture student organizations including:
- Block & Bridle Club
- Cherry Country Life Club
- WKU Equestrian Team
Invasive Species And Climate Change, Invasive Species Advisory Committee
Invasive Species And Climate Change, Invasive Species Advisory Committee
National Invasive Species Council
ISSUE
Climate change interacts with and can often amplify the negative impacts of invasive species. These interactions are not fully appreciated or understood. They can result in threats to critical ecosystem functions on which our food system and other essential provisions and services depend as well as increase threats to human health. The Invasive Species Advisory Committee to the National Invasive Species Council recognizes the Administration’s commitment to dealing proactively with global climate change. However, unless we recognize and act on the impact of climate change and its interaction with ecosystems and invasive species, we will fall further behind in …
The Use Of High Distillers Grains And Nutrient Management In Beef Feedlots, Amy R. Rich
The Use Of High Distillers Grains And Nutrient Management In Beef Feedlots, Amy R. Rich
Department of Animal Science: Dissertations, Theses, and Student Research
Two experiments were conducted to determine the effect of feeding wet distillers grains (WDGS) at 70% and wheat straw at 25% (DM basis) on finishing steer performance and N mass balance in open feedlot pens. Four treatments were tested as a 2x2 factorial with factors being diet and pen cleaning frequency (monthly or at the end of the feeding period). In both experiments the CON treatment (corn based diet) had greater DMI, ADG, HCW, marbling and fat depth. There was greater N intake and N excretion for both the WINTER and SUMMER experiments on the WDGS. Not all the additional …
Fall Field Report, August–November 2010, W. Ross Silcock
Fall Field Report, August–November 2010, W. Ross Silcock
Nebraska Bird Review
This was a pretty routine fall for the most part, although there were scattered early and late dates and high counts as in most seasons. Decidedly non-routine, though, was the appearance of two rarities, Ross's Gull and Brown-headed Nuthatch, both enjoyed by many. A surprising 15 gull species were reported, this without much help from L McConaughy! Also notable were the sea-ducks, scoters, and Long-tailed Duck, which were in good numbers.
Tom Labedz, collections manager at the University of Nebraska State Museum, is an excellent source; he contributed greatly to discussions herein on Greater Prairie-Chicken and Fox Sparrow.
A clarification: …
Ethanol Byproduct Feeds: Determining Accurate Fiber Content, Nutrient Composition And Variability, Storing With Low-Quality Forages, And Fiber Utilization In Finishing Diets, Crystal D. Buckner
Ethanol Byproduct Feeds: Determining Accurate Fiber Content, Nutrient Composition And Variability, Storing With Low-Quality Forages, And Fiber Utilization In Finishing Diets, Crystal D. Buckner
Department of Animal Science: Dissertations, Theses, and Student Research
The growing ethanol industry has produced vast quantities of distillers grains plus solubles (DGS) in the wet (WDGS) and dry forms and Sweet Bran wet corn gluten feed (SB). Previous research has demonstrated that these byproduct feeds result in improved feeding values compared to grass in growing diets and corn in finishing diets, with positive economic returns. Four experiments were conducted to evaluate dry matter determination methods and variability of nutrient composition for WDGS, determining the accurate method for measuring NDF in corn and DGS, compare feeding WDGS mixed with straw as either fresh or ensiled, and evaluate fiber digestibility …
Food Processors Look To Dairy Ingredients, Phillip S. Tong
Food Processors Look To Dairy Ingredients, Phillip S. Tong
Dairy Science
No abstract provided.
Flank Gland-Secreted Putative Chemosignals Pertaining To Photoperiod, Endocrine States, And Sociosexual Behavior In Golden Hamsters, Ying-Juan Liu, Da-Wei Wang, Lixing Sun, Jin-Hua Zhang, Jian-Xu Zhang
Flank Gland-Secreted Putative Chemosignals Pertaining To Photoperiod, Endocrine States, And Sociosexual Behavior In Golden Hamsters, Ying-Juan Liu, Da-Wei Wang, Lixing Sun, Jin-Hua Zhang, Jian-Xu Zhang
All Faculty Scholarship for the College of the Sciences
Behavioral studies have shown that flank glands are involved in chemical communication in golden hamsters Mesocricetus auratus but little chemical analysis has been conducted on volatiles arising from these glands. Using gas chromatography- mass spectrometry, we detected compounds from the flank glands of males, only eight of which were also produced in females. Based on these chemical data we performed a number of further experiments. By manipulating light we found that males exposed to short-photoperiods developed smaller flank glands than those exposed to long-photoperiods. Six flank gland volatiles reduced in relative abundance, which possibly coded for reproductive status of males …
Influence Of Physiochemical And Watershed Characteristics On Mercury Concentration In Walleye, Sander Vitreus, M., Cari-Ann Hayer, Steven R. Chipps, J. J. Stone
Influence Of Physiochemical And Watershed Characteristics On Mercury Concentration In Walleye, Sander Vitreus, M., Cari-Ann Hayer, Steven R. Chipps, J. J. Stone
Natural Resource Management Faculty Publications
Elevated mercury concentration has been documented in a variety of fish and is a growing concern for human consumption. Here, we explore the influence of physiochemical and watershed attributes on mercury concentration in walleye (Sander vitreus, M.) from natural, glacial lakes in South Dakota. Regression analysis showed that water quality attributes were poor predictors of walleye mercury concentration (R2 = 0.57, p = 0.13). In contrast, models based on watershed features (e.g., lake level changes, watershed slope, agricultural land, wetlands) and local habitat features (i.e., substrate composition, maximum lake depth) explained 81% (p = 0.001) …
Corn Hybrids: Deer Taste The Difference, Joshua A. Delger, Kevin L. Monteith, Jonathan A. Jenks
Corn Hybrids: Deer Taste The Difference, Joshua A. Delger, Kevin L. Monteith, Jonathan A. Jenks
Natural Resource Management Faculty Publications
As daylight begins to illuminate the countryside, a cold wind rustles through the leaves of the weedy rows of corn that you barely had time to get in the ground this past spring. The corn plants are stunted, the few small ears of corn that did grow are not even enticing to passing blackbirds, and that stud buck captured on your trail-camera months earlier is nowhere to be seen. Meanwhile, a couple hundred yards across the fence to the south, you hear the unmistakable sound of deer running through corn. Your heart rate involuntarily increases. As the sun continues to …
Description Of The Tadpole Of Proceratophrys Renalis (Miranda-Ribeiro, 1920) (Anura: Cycloramphidae), Filipe Augusto C. Do Nascimento, Barnagleison S. Lisboa, Gabriel O. Skuk, Rafael O. De Sá
Description Of The Tadpole Of Proceratophrys Renalis (Miranda-Ribeiro, 1920) (Anura: Cycloramphidae), Filipe Augusto C. Do Nascimento, Barnagleison S. Lisboa, Gabriel O. Skuk, Rafael O. De Sá
Biology Faculty Publications
The tadpole of Proceratophrys renalis is described based on specimens from Maceió, State of Alagoas, northeastern Brazil. At stage 35 the body is slightly dorso-ventrally depressed, ovoid in lateral, dorsal, and ventral views. Oral disc is ventral with lateral emarginations, surrounded by a single row of marginal papillae with a large gap on the upper labium. Labial tooth row formula is 2(2)/3(1 ). The analysis of internal oral anatomy revealed two possible characters that readily distinguish P. renalis from P. boiei, supporting the recent resurrection of P. renal is. Comparisons with available descriptions of the larvae for other species in …
Nebraska Bird Review (December 2010) 78(4), Whole Issue
Nebraska Bird Review (December 2010) 78(4), Whole Issue
Nebraska Bird Review
Fall Field Report, August–November 2010 ... 130
McCook Fall Field Days ... 150
Nebraska Ornithologists' Union Records Committee: A Review of the First 25 Years (1985–2009) ... 155
By-Laws of the Nebraska Ornithologists' Union (NOU) Records Committee ... 167
Index to Volume 78 ... 171
Subscription and Organization Information ... 183
Nebraska Ornithologists’ Union Records Committee: A Review Of The First 25 Years (1985–2009), Mark A. Brogie
Nebraska Ornithologists’ Union Records Committee: A Review Of The First 25 Years (1985–2009), Mark A. Brogie
Nebraska Bird Review
The year 2009 marked the 25th year of existence of the Nebraska Ornithologists' Union Records Committee (NOURC). Its beginning can be traced to one person—Wayne Mollhoff. Wayne raised the need for a records committee in the spring of 1985 at the NOU Annual Meeting in Gretna, Nebraska. At the general membership meeting, then-president Gary Lingle appointed Wayne to form a committee to establish a Nebraska Ornithologists' Union Records Committee. Using procedures from several other states' records committees, Wayne developed a set of operating guidelines or by-laws specific to Nebraska. Further discussion of a records committee continued at the 1985 NOU …
Mccook Fall Field Days
Nebraska Bird Review
The 2010 NOU Fall Field Days were held in McCook on September 24–26, and 57 members and friends were in attendance.
Field trip destinations included Medicine Creek Reservoir and points east, led by William Flack; Red Willow State Recreation Area and other Frontier County locations, led by T. J. Walker; and Swanson Reservoir State Recreation Area and the Benkelman sewage lagoons, led by Robin Harding and Lanny Randolph. A final tally of 131 species was recorded.
Gerhard Assenmacher, wildlife photographer and conservationist, spoke on Saturday night about his Medicine Creek Wildlife Refuge. The refuge is composed of more than 550 …
Subscription And Organization Information [December 2010]
Subscription And Organization Information [December 2010]
Nebraska Bird Review
The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $15 in the United States, $18 in Canada, and $30 in all other countries, payable in advance. Single copies are $4 each, postpaid, in the United States, $5 in Canada, and $8 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101.
Memberships in the NOU (on a calendar-year basis only): Active Household …
Index To Volume 78
Nebraska Bird Review
Adams,
Cody 125
David 125
Akers, Danny 131
Alexander, Irene 26
Allen, Paul 125
Allison, Scott 26
Amadon, D. 69
American Ornithologists' Union 34, 82
Amos, A. F. 33
Andelt, Frank 125
Anderson-Ray, Janet 40
Andresen, Kari 125
Anhinga 70, 162
Ani, Groove-billed 75, 164
Arp, Duane 125
Assenmacher, Gerhard 150
Audubon, John J. 104, 121
Avocet, American 38, 48, 50, 65, 70, 93, 137
By-Laws Of The Nebraska Ornithologists’ Union (Nou) Records Committee, Mark A. Brogie
By-Laws Of The Nebraska Ornithologists’ Union (Nou) Records Committee, Mark A. Brogie
Nebraska Bird Review
These procedural guidelines, or "by-laws," were revised and approved by the NOURC and the NOU Board of Directors (2010).
A New Partial Skeleton Of A Cryptocleidoid Plesiosaur From The Upper Jurassic Sundance Formation Of Wyoming, Benjamin C. Wilhelm, F. Robin O’Keefe
A New Partial Skeleton Of A Cryptocleidoid Plesiosaur From The Upper Jurassic Sundance Formation Of Wyoming, Benjamin C. Wilhelm, F. Robin O’Keefe
Biological Sciences Faculty Research
Cryptocleidoid plesiosaurs from the Upper Jurassic are well known from the Oxford Clay (Callovian) of the United Kingdom. The plesiosaurs of the nearly coeval Sundance Formation (Oxfordian) of North America are poorly known, but are thought to include two cryptocleidoid taxa:Pantosaurus striatus and Tatenectes laramiensis. Here we present two specimens recently recovered from the Bighorn Basin of Wyoming. The first specimen comprises three articulated adult cervical vertebrae and fragments of a fourth. This specimen preserves a posteriorly directed cervical neural spine, a character diagnostic of Pantosaurus striatus. It also resembles Pantosaurus in the morphology of its cervical …
Fisheries-Dependent Indicators Of Climate Change In Western Australia Wamsi:Sub-Project 4.2.3, Nick Caputi, Alan Pearce
Fisheries-Dependent Indicators Of Climate Change In Western Australia Wamsi:Sub-Project 4.2.3, Nick Caputi, Alan Pearce
Fisheries research reports
The use of fishery-dependent data may be a cost-effective way of assessing whether there have been any changes in the distribution and relative abundance of species. Such indicators are part of an ongoing data gathering system and the costs are relatively low compared to those of a fishery-independent field program. Fishery-dependent data may therefore be obtained at a higher frequency and allow detection of changes faster than would be possible from the results from the direct sampling of specific sites within entire ecosystems.
Distributions Of Sharks Across A Continental Shelf In The Northern Gulf Of Mexico, J. Marcus Drymon, Sean P. Powers, John Dindo, Brian Dzwonkowski, Terry A. Henwood
Distributions Of Sharks Across A Continental Shelf In The Northern Gulf Of Mexico, J. Marcus Drymon, Sean P. Powers, John Dindo, Brian Dzwonkowski, Terry A. Henwood
University Faculty and Staff Publications
Declines in shark populations have sparked researchers and fishery managers to investigate more prudent approaches to the conservation of these fish. As managers strive to improve data collection for stock assessment, fisheries-independent surveys have expanded to include data-deficient areas such as coastal regions. To that end, a catch series from a nearshore survey off Alabama was combined with data from a concurrent offshore survey with identical methodology to examine the depth use of sharks across the continental shelf (2–366 m). The combined data set contained 22 species of sharks collected from 1995 to 2008: 21 species in the offshore data …
Arkansas Animal Science Department Report 2010, David L. Kreider
Arkansas Animal Science Department Report 2010, David L. Kreider
Arkansas Agricultural Experiment Station Research Series
No abstract provided.
Communication For Mate Selection In Anurans: Dominant Frequency Versus Snout-Vent-Length, Shari Jean Kunert
Communication For Mate Selection In Anurans: Dominant Frequency Versus Snout-Vent-Length, Shari Jean Kunert
Department of Environmental Studies: Undergraduate Student Theses
No abstract provided.
Is Orthoptera Abundance And Distribution Across A Small Grassland Area Affected By Plant Biomass, Plant Species Richness, And Plant Quality?, Caitlin Falcone
Is Orthoptera Abundance And Distribution Across A Small Grassland Area Affected By Plant Biomass, Plant Species Richness, And Plant Quality?, Caitlin Falcone
Department of Environmental Studies: Undergraduate Student Theses
The choice of a specific microhabitat represents a compromise among a number of different factors organisms use to monitor habitat suitability. Grassland vegetation structure can vary widely along environmental gradients over a relatively small area. This vegetation structure can have a large influence on habitat selection by grasshoppers (Orthoptera). However, it is not clear which vegetation characteristics are most important in determining grasshopper abundance. We found that plant biomass, plant species richness, and plant quality all have an effect on grasshopper abundance and distribution. We observe that these affects vary both within and among the two years of data collection. …
Equine Vision And Its Effect On Behavior, Patricia Evans
Equine Vision And Its Effect On Behavior, Patricia Evans
All Current Publications
This publication describes horses vision and how to work horses to the best advantage.
Fertilization And Supplementation Strategies For Steers Grazing Smooth Bromegrass Pastures, Andrea K. Watson
Fertilization And Supplementation Strategies For Steers Grazing Smooth Bromegrass Pastures, Andrea K. Watson
Department of Animal Science: Dissertations, Theses, and Student Research
Since 2004, fertilizer prices have doubled due to increases in energy prices for production and increased demand for N fertilizer due to high grain prices. This leads to questioning the cost effectiveness of increasing forage production with N fertilizer. At the same time, an increase in ethanol production creates an increase in the production of by-products of the ethanol industry, such as distillers grains. Distillers grains have been shown to be an excellent feed for ruminants both as a supplement while grazing and as part of a complete diet in the feedlot. Distillers grains provide protein, fat, and highly digestible …
Strategies For Beef Cattle Adaptation To Finishing Diets, Ractopamine Hydrochloride Utilization, And Mature Size Genetic Selection, Marco G. Dib
Department of Animal Science: Dissertations, Theses, and Student Research
A cattle finishing experiment was conducted to evaluate effects of intermittent feeding of Optaflexx compared to none or continuous feeding. Four treatments were evaluated, the negative control consisted of 63 days on the same diet without Optaflexx, wherea the positive control consisted of Optaflexx supplemented daily during the last 35 days before harvest. The 4-day intermittent treatment consisted of feeding Optaflexx for7 days, followed by 4 days of no Optaflexx, and the 7-day intermittent treatment 7 d on Optaflexx, followed by 7 days off. Regardless of the delivery pattern, feeding Optaflexx increased ADG, DMI, and live BW compared to negative …
An Evaluation Of The Risk And Return Associated With Four Cattle Feeding Alternatives In Utah, Dillon M. Feuz, Caleb Bott
An Evaluation Of The Risk And Return Associated With Four Cattle Feeding Alternatives In Utah, Dillon M. Feuz, Caleb Bott
All Current Publications
This publication serves as an evaluation of the risk and return associated with four cattle feeding alternatives.
Obesity, Metabolic Hormone Signaling, And Granulosa Cell Gene Expression, Elizabeth Mack
Obesity, Metabolic Hormone Signaling, And Granulosa Cell Gene Expression, Elizabeth Mack
Department of Animal Science: Dissertations, Theses, and Student Research
It has become increasingly clear that female obesity is associated with a myriad of adverse side effects including abnormal female reproduction due, in part, to amenorrhea and anovulatory infertility. The lethal yellow (LY) mouse possesses a deletion mutation which results in ectopic expression of agouti and adult-onset obesity. Furthermore, LY mice exhibit premature loss of fertility, which has been associated with progressive obesity making the LY mouse line an excellent model to study the effects of obesity-dependent factors on ovarian function. In the current study blood serum and granulosa cells were obtained from LY (Ay/a) and age-matched B6 controls (C57BL/6J) …
Distillers Grains With Solubles For Feedlot Cattle - Finishing Performance, Lipid Metabolism, And Ethanol Greenhouse Gas Balance, Virgil R. Bremer
Distillers Grains With Solubles For Feedlot Cattle - Finishing Performance, Lipid Metabolism, And Ethanol Greenhouse Gas Balance, Virgil R. Bremer
Department of Animal Science: Dissertations, Theses, and Student Research
Previous University of Nebraska feedlot research trials have characterized the feed value of wet distillers grains plus solubles (WDGS). These trials were summarized with meta-analysis methodology and indicated the feed value of WDGS interacts with corn processing type, cattle age (calf-fed or yearling), and inclusion level. Two steer finishing studies and a metabolism study were conducted to understand the impact of different lipid sources in WDGS on WDGS feed value. A biphasic lipid extraction procedure was developed to analyze feed samples from these trials that was more effective than Goldfisch ether extraction at lipid analysis of byproduct feds. These trials …