Life Sciences Commons^™

Impact Of Constant Versus Variable Inclusions Of Modified Distillers Grains Plus Solubles On Feedlot Cattle Performance And Carcass Characteristics, Paige M. Madison, Rebecca L. Mcdermott, Isaque F. Vicci, Joshua R. Benton, James C. Macdonald, Galen E. Erickson

Nebraska Beef Cattle Reports

Summary with Implications

A finishing trial was conducted to evaluate the effects of varying dietary inclusion of modified distillers grains plus solubles compared to a constant inclusion throughout the entire feeding period on finishing cattle performance. Treatments were arranged as a 2 × 2 + 1 factorial with two inclusions of modified distillers grains plus solubles (10% and 25%) that were constant or varying in dietary inclusion, and a corn control (0% modified distillers grains plus solubles). Increasing the inclusion of distillers grains from 0 to 25% increased both DMI and ADG when fed at a constant inclusion of 10 …

Impact Of Full-Fat Wet Distillers Grains Inclusion In Steam-Flaked Corn Based Finishing Diets, Gatlin Hissong, Bill Dicke, Doug Smith, Andrea Watson, Galen E. Erickson

Nebraska Beef Cattle Reports

Summary with Implications

Steam-flaked corn and distillers grains are common feed ingredients in finishing rations, but the interaction between the two is not well understood. A finishing trial at a commercial feedlot using 700 calf-fed heifers was conducted to evaluate cattle performance when fed 18 or 30% (dry matter basis) full-fat wet distillers grains plus solubles in steam-flaked corn based diets with 8% roughage (hay + corn silage). No effects on cattle performance were observed due to distillers grains inclusion in the diet. Final body weight, dry matter intake, average daily gain, feed conversion, and hot carcass weight were not …

Effect Of Feeding Palm Oil On Finishing Cattle Performance, Carcass Characteristics, And Methane Production, Anna M. Kobza, Rebecca L. Mcdermott, Mitchell C. Norman, Joshua R. Benton, Long Zou, James C. Macdonald, Galen E. Erickson

Nebraska Beef Cattle Reports

Summary with Implications

Increased demand for biofuel production has increased demand and price of commonly fed supplemental fat sources in beef operations. This finishing study evaluated the effect of feeding palm oil products on performance, carcass characteristics and methane production of feedlot finishing steers. Dietary treatments were feeding no supplemental fat or feeding one of the following fat sources at 4% of diet dry matter: whole palm oil, palm stearin, palm olein, or corn oil. Feeding supplemental fat, regardless of source, increased final body weight, average daily gain, and hot carcass weight. Feeding supplemental fat had no effect on dry …

Effect Of Feeding Two Different Feed Additives (Optipartum C+ And Prime Force) On Finishing Cattle Performance And Carcass Characteristics, Sofia Suarez-Lorences, Rebecca L. Mcdermott, Joshua R. Benton, Robert Bondurant, Willard Lemaster, James C. Macdonald, Galen E. Erickson

Nebraska Beef Cattle Reports

Summary with Implications

A feedlot study was conducted to evaluate the effects of adding two different natural feed additives, Prime Force and Optipartum C+, on finishing cattle performance and carcass characteristics. Treatments were applied as a 2×2 factorial that included a control diet with no additive; a diet containing Prime Force; a diet containing Optipartum C+; and a diet containing both Prime Force and Optipartum C+ combined. Treatment diets were fed the last 67 d prior to slaughter as designed. Cattle fed Prime Force had greater live final body weight, carcass weight, intake, and average daily gain compared to cattle …

Effects Of Replacing Wet Corn Distillers Grains With A Purefield Distillers Grains® At 15% And 30% (Dm Basis) In Feedlot Diets, Sofia A. Canafoglia, Pablo L. Loza

Nebraska Beef Cattle Reports

Summary with Implications

A 2×2 +1 factorial experiment was performed to evaluate the effects of replacing wet corn distillers grain (WCDGS) with PureField distillers grains, a proprietary blend of wet distillers grains plus wheat middlings (Purefield LLC, Kansas, United States) at 15% or 30% of the diet (DM basis), on finishing performance and carcass characteristics. The inclusion of either byproduct resulted in improved steer performance, and carcass characteristics when compared to the treatment without the byproduct inclusion. No interactions between byproduct and inclusion level were observed for steer performance or carcass characteristics. A tendency for higher average daily gains was …

2025 Beef Cattle Report

Nebraska Beef Cattle Reports

Cow-calf Nutrition, Reproduction, and Management

Artificial Insemination of Beef Heifers with Multi-sire Semen, Dempster M. Christenson, Jordan M. Thomas, Daniel J. Kelly, Rick N. Funston

Impact of Overwinter Gain on Growth and Reproductive Performance in March- born Heifers, Josie N. Crouch, J. Travis Mulliniks, Jacki A. Musgrave, Kacie L. McCarthy

Impact of Pre- and Post-breeding Supplementation on Performance of May-born Heifers, Josie N. Crouch, J. Travis. Mulliniks, Jacki A. Musgrave, Kacie L. McCarthy

Growing Calf and Yearling Management

Effects of Allocation Frequency on Cattle Performance and Forage Utilization when Swath Grazing a Sorghum-Sudangrass Hybrid in Eastern Nebraska, Thomas E. Aquino, …

Effect Of Using Whole Soybeans, Roasted Soybeans, Or Soybean Meal In Finishing Cattle Diets, Melissa K. Bausch, James C. Macdonald, Galen E. Erickson, Pablo L. Loza

Nebraska Beef Cattle Reports

Summary with Implications

A feedlot study compared the effect of using whole or roasted soybeans at two inclusion rates (12% and 16% of diet dry matter), soybean meal, distillers grains, or a dry-rolled corn with urea control in finishing cattle diets. Steers fed the diet with the 16% inclusion of roasted soybeans had better average daily gain, feed conversion, and hot carcass weight. All other diets resulted in similar performance to the dry-rolled corn and distillers grains treatments. Roasted soybeans fed at a 16% inclusion improved F:G over the 12% roasted soybeans as compared to the whole soybeans which were …

Correction On The Status Of Nematodes Pavidus Horn, 1886 (Coleoptera: Eucnemidae: Dromaeolinae: Dromaeolini), With Redescriptions Of Two Species From The Southeastern United States And The Caribbean, Robert L. Otto

Insecta Mundi

The status of Nematodes pavidus Horn (Coleoptera: Eucnemidae), in relation to Nematodes punctatus LeConte and Nematodes teres Horn is being questioned after Muona (2000) revised the family in the Nearctic region. Investigations into the status of N. pavidus included explorations of the histories among these three species and examining images of the types through the Museum of Comparative Zoology’s website. It has been confirmed that Muona erred by synonymizing N. pavidus with N. teres before transferring both N. punctatus and N. teres to Dromaeolus Kiesenwetter. A correction has been made by transferring N. pavidus …

Blue Exoskeleton, Aridity, And Thermoregulation In Some Western Nearctic Spider Wasps (Hymenoptera: Pompilidae), Frank E. Kurczewski

Insecta Mundi

Several Nearctic spider wasp genera and subgenera in the subfamily Pompilinae (Hymenoptera: Pompilidae) in the arid western United States and northern Mexico are characteristically blue, violet, or purple in color: Aporus Spinola; Plectraporus Bradley; Chelaporus Bradley; Psorthaspis Banks; Chalcochares Banks; Evagetes Lepeletier; and Allochares Banks. Other genera and subgenera of Pompilinae in western United States and northern Mexico have one or more bluish or violaceous species: Episyron Schiødte; Notiochares Banks; Pompilinus Ashmead; Anoplius Dufour; Hesperopompilus Evans; Ammosphex Wilcke; and Arachnospila Kincaid. In California, 27/79 (34.2%) species of Pompilinae are blue, violet, or purple. The number of blue, violet, or purple …

New State And Adult Host Records For Species Of Anthaxia Degeer And Melanophila Eschscholtz (Coleoptera: Buprestidae) In The Western United States, Richard L. Westcott, Luc Leblanc

Insecta Mundi

New state records are provided for one species of Anthaxia (Haplanthaxia) Reitter, six species of Anthaxia (Melanthaxia) Richter, and one species of Melanophila Eschscholtz (Coleoptera: Buprestidae) in the Western United States. One new adult host record is provided for Anthaxia (Melanthaxia) aeneogaster Gory and Laporte, two are provided for Melanophila atropurpurea (Say), and one for Phaenops intrusa (Horn).

A New Species Of Allotriopsis Champion From Guatemala (Coleoptera: Elateridae), E. R. Fuller

Insecta Mundi

Abstract

Allotriopsis schusteri Fuller (Coleoptera: Elateridae), new species, is described from cloud forest habitat in Zacapa Department, Guatemala, and compared with Allotriopsis nasalis Champion from Quezaltenango Department, Guatemala.

Resumen

Se describe Allotriopsis schusteri Fuller (Coleoptera: Elateridae), nueva especie, del hábitat del bosque nuboso en el departamento de Zacapa, Guatemala, y se compara con Allotriopsis nasalis Champion del departamento de Quezaltenango, Guatemala.

Checklist Of The Cerambycidae (Coleoptera) Of Panama, Alfredo Lanuza-Garay, Miguel A. Monné

Insecta Mundi

Abstract

A checklist of the Cerambycidae (Coleoptera) of Panama is provided, including 1,031 species and subspecies distributed in 433 genera, 63 tribes and subtribes, and five subfamilies. In addition, provincial distribution data are provided for each species. The following new country records for Panama are reported: Ischioloncha lineata Bates, 1885 (Panama and Colon Province) (Lamiinae: Apomecynini), Oncideres macra Thomson, 1868 (Panama and Panama Oeste Province), Oncideres minuta Thomson, 1868 (Panama province, San Blas Comarca), Oncideres ochreostillata Dillon and Dillon, 1952 (Barro Colorado Island) (Lamiinae: Onciderini). A new province record is presented for Rileyellus panamensis Wappes and Santo-Silva, 2020 (Darien Province) …

Three New Species Of Lepidocyrtus Bourlet (Collembola: Entomobryidae) From Florida, Usa, And Descriptive Notes On Lepidocyrtus Floridensis Snider, Felipe N. Soto-Adames, Emily Jenks, Kathryn M. Daly

Insecta Mundi

Abstract

In North America, the genus Lepidocyrtus Bourlet (Collembola: Entomobryidae) is represented by 18 species, but only three (L. floridensis Snider, L. millsi Snider, and L. pallidus Reuter) have been reported from Florida. We investigated species diversity in leaf litter samples from counties in the north-central and southern part of the state, as the reportedly low species diversity in Florida may be due to under-sampling. As a result, in this contribution we describe three species of Lepidocyrtus new to science: L. bobwoodruffi Soto-Adames, Jenks and Daly, new species, L. brambilae Soto-Adames, Jenks and …

Habitat Definition For Pepsis Elegans Lepeletier (Hymenoptera: Pompilidae: Pepsinae), Frank E. Kurczewski

Insecta Mundi

Recent (2024) photographs of Pepsis elegans Lepeletier (Hymenoptera: Pompilidae: Pepsinae) females searching through plant litter disclosed no clues about its nesting behavior or host spider. However, coupled with geographic site locations, they reveal important habitat information. The various site locations are specifically defined as part of the Eastern Temperate Forests Level I Ecoregion of North America, numerous Level III Ecoregions of the Continental United States, several United States Forest Type Groups, and natural habitat designation of mesic open woodland.

A Taxonomic Note On Lecanium Vaccinii Macrocarpum Nomen Dubium Status, Rhys J. L. Campo, Barbara D. Denno, Douglass R. Miller

Insecta Mundi

Lecanium vaccinii macrocarpum Goethe, 1884 (Hemiptera: Coccidae) is a subspecies of which the original description is inconsistent with its current taxonomic placement, and its recorded synonymy with other species is questionable. The original type material is likely lost or destroyed. For these reasons, L. vaccinii macrocarpum is proposed to be treated as nomen dubium.

New Host Record Of Dahlibruchus Bridwell, 1931 On Cultivated Dahlia Cav. In Mexico And Description Of Two New Species (Coleoptera: Bruchidae), Jesús Romero Nápoles

Insecta Mundi

Dahlibruchus Bridwell is a genus in the family Bruchidae (Coleoptera: Chrysomeloidea) and all species have as host plants species in the genus Dahlia Cav. (Asteraceae). Usually they arrive on hosts when flowers appear and start feeding on nectar and pollen; later females lay eggs on bracts, and a few weeks later the adults emerge. Presently, the genus Dahlibruchus contains three species. The description of two new ones (Dahlibruchus castroi, new species and Dahlibruchus ruizi, new species) brings this number to five. A key to all species is presented. Dahlibruchus conradti Bridwell is recorded for the first …

A Review Of The Genus Necydalis Linnaeus (Coleoptera: Cerambycidae) From North America With Proposed Subgeneric Reclassification, Daniel Heffern, Tatsuya Niisato, Ronald Alten

Insecta Mundi

All North American species of Necydalis Linnaeus, 1758 (Coleoptera: Cerambycidae) are removed from the nominotypical subgenus with species allocated into four subgenera: Neodalis Niisato new subgenus, Heterodalis Niisato new subgenus, Mesodalis Niisato new subgenus and Necydalisca Plavilstshikov, 1936. Neodalis and Heterodalis are endemic to the Nearctic, whereas Mesodalis and Necydalisca also occur in the Palearctic. Necydalis (Neodalis) copei Niisato, Heffern and Alten new species is described from Nevada, USA. Necydalis californica Linsley, 1940 new status is elevated from a subspecies of N. diversicollis Schaeffer, 1932 to full species status. Male terminalia of all species are …

Living A Lie: The Truth Behind Isohydnocera Curtipennis (Newman) And Other Historically Confused Species Of Phyllobaenus Dejean, With The Description Of The New Genus Neohydnocera (Coleoptera: Cleridae: Clerinae: Hydnocerini: Hydnocerina), John M. Leavengood Jr.

Insecta Mundi

Taxonomic changes in the New World Hydnocerina (Coleoptera: Cleridae: Clerinae: Hydnocer­ini) at the species and genus level are presented. Phyllobaenus suturalis (Klug, 1842) and Hydnocera limbata Spinola, 1844 are designated junior synonyms of P. pallipennis (Say, 1825), new synonymy. Phyllobaenus nigrescens (Schaeffer, 1909) is designated a junior synonym of P. verticalis (Say, 1835), new synonymy. Iso­hydnocera curtipennis (Newman, 1840), P. lineaticollis Spinola, 1844, and Clerus brachypterus Klug, 1842, are re-established as junior synonyms of P. verticalis (Say, 1835), status reinstated, and I. curtipennis is accordingly reassigned to Phyllobaenus Dejean as P. curtipennis …

The First Species Of Prococcophagus Silvestri (Hymenoptera: Aphelinidae) From America North Of Mexico, Zachary Lahey, Alvin M. Simmons, Sharon A. Andreason

Insecta Mundi

Prococcophagus tobiasi (Myartseva) (Hymenoptera: Aphelinidae) is newly recorded from the state of Florida. This represents the first record of the genus Prococcophagus Silvestri in the United States. Amendments are made to the original description based on the newly collected specimens, and the species is placed in the context of the genus based on a phylogenetic analysis of 28S rDNA. The status of the specimens comprising the type series is discussed and notes are made on the unusual coloration exhibited by living specimens.

Tetraleurodes Gilli (Hemiptera: Sternorrhyncha: Aleyrodidae), A New Whitefly Species On Quercus L. From California, Natalia Von Ellenrieder

Insecta Mundi

Abstract

A new species of Tetraleurodes Cockerell (Hemiptera: Sternorrhyncha: Aleyrodidae), T. gilli, occurring on Quercus L. (Fagaceae) in California is described and illustrated based on its puparium, adults, and nymphs. The puparium of the new species can be recognized from that of other black whiteflies devoid of dorsal wax that occur on oaks by the combination of a filamentous marginal wax fringe as wide as a third to full width of puparium, cephalothoracic setal formula 1 0 1 1, longitudinal suture margined by tubercles, presence of eyespots, a concentric dorsal submarginal fold, ventral spinules medially to legs decreasing …

Derivation Of The Maintenance Energy Requirements In Growing Jersey Heifers: Supplementary Table S1, Addison L. Carroll, Michael J. Vandehaar, Paul J. Kononoff

Department of Animal Science: Faculty Publications

Supplemental table for Addison L. Carroll, Michael J. VandeHaar, and Paul J. Kononoff. Derivation of the maintenance energy requirements in growing Jersey heifers. Journal of Dairy Science (2025).

Dataset For "The Role Of Metacognition And Confidence In Quantitative Reasoning In College Biology Courses", Joseph Dauer, Anum Khushal, Brian A. Couch, Robert L. Mayes, Kent Rittschof

School of Natural Resources: Faculty Publications

Quantitative modelling is a fundamental skill for biology students with performance determined by a host of cognitive and metacognitive resources and requiring instructors to integrate key quantitative dimensions into teaching biology. Using an assessment of quantitative modelling in biology, we explored biology students’ (n = 930 higher education students) modelling practices (i.e., abilities to create, test, revise), metacognition about the nature of models and confidence in their capabilities to model. Students performed best on items related to understanding variables used in models and performed more poorly on items related to interpreting, creating, and using models to understand biological phenomena. …

Program And Proceedings: Nebraska Academy Of Sciences 1880–2025, 145th Anniversary Year, One Hundred-Thirty-Fifth Annual Meeting

Nebraska Academy of Sciences: Programs and Proceedings

Program

Aeronautics and Space Science

Biological and Medical Sciences

Biology

Chemistry

Earth Sciences

Science Education

Anthropology

Applied Science and Technology

Physics and Engineering

Forensic Sciences

Ecology, Sustainability, and Environmental Science

Maiben Lecture: Mary Ann Vinton, "State of the Academy"

Friends of Science Awards: David Crouse and Daniel Sitzman

2025-2026 Seed Book, Nebrasa Crop Improvement Association

Nebraska Crop Improvement Association Seed Guides

2025-2026 seed book, Nebraska Crop Improvment Association.

Nebraska Seed Focus, September 2025, Nebraska Crop Improvement Association

Nebraska Seed Focus

Nebraska Seed Focus, September 2025

Timber Talk, Vol. 63, No. 1, March 2025

Timber Talk: Nebraska Forest Industry Newsletter

Timber Talk, Vol. 63, No. 1, March 2025

Timber Talk, Vol. 63, No. 2, June 2025

Timber Talk: Nebraska Forest Industry Newsletter

Timber Talk, Vol. 63, No. 2, June 2025

Noaa Oceanic And Atmospheric Research Ocean Carbon Observing Science Plan Fy25 To Fy35, United States National Oceanographic And Atmospheric Administration

National Oceanographic and Atmospheric Administration: Technical Reports and Related Materials

United States National Oceanographic and Atmospheric Administration oceanic and atmospheric research ocean carbon observing science plan for fiscal years 2025 through 2035.

Fire History, Ecological History, And Historical Human-Environment Interactions In The Northern Great Plains, James Victor Benes

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This dissertation explores the spatiotemporal signatures of fire in North American grassland ecosystems. In three chapters, I explore different aspects of fire history in the northern Great Plains. Chapter 1 is an introduction. Chapter 2 focuses on the Euro-American Settlement Period (ca. 1850–1950 C.E.). Fire histories from six different lakes in the Nebraska Sandhills are compared with two periods of historic drought and the establishment of United States Post Offices. Five of the six records show increased levels of biomass burning during the initial phases of Euro-American Settlement. Chapter 3 is a long-term (ca. 15,000 years), high-resolution fire history and …

Effect Of Forage Allocation On Steer Performance When Grazing Cereal Rye, Shelby L. Davies-Jenkins, Abigail M. Sartin, Daren D. Redfearn, Mary E. Drewnoski

Nebraska Beef Cattle Reports

Summary with Implications

Cereal rye is the most common cover crop planted today. With its good winter tolerance and rapid spring growth during a gap in perennial pasture productivity, it is an attractive forage source in early spring. Unfortunately, optimum stocking rates and how they are related to forage biomass availability are unknown. The study objective was to understand the effect of forage allowance on steer performance when rotationally grazing fall-planted cereal rye in spring. Stocking rate was negatively correlated with pounds of forage offered. Surprisingly, amount of forage offered related to average daily gain. Growing steers grazing cereal rye …