Animal Sciences Commons^™

Steps In Evaluating Power Ventilation Needs In Utah Turkey Facilities, David D. Frame, Gary L. Anderson

All Archived Publications

No abstract provided.

Fish & Wildlife News: January/February 2002

Fish and Wildlife News

Contents:

Service Welcomes Director Steven Williams 2
Canada Lynx Survey Controversy 3
Service Starts Management Reform Studies 4
Hautman Wins Duck Stamp Contest 8
Renowned Panel Presents Ethics Broadcast 9
Newly Opened Great Plains Nature Center 10
New Hampshire Dam Removal Partnership 11
Exploring Our Past 12
Fish & Wildlife...In Brief 15

Fish & Wildlife News: Winter 2002–2003

Fish and Wildlife News

Contents:
Manson Receives Legion of Merit 2
IAFWA Names New V.P. 4
Red River NWR Created 6
Patuxent NWR Turkey Hunt 7
From Argali to Bighorn 11
Region Hosts Tribal NEPA Workshop 12
Rare White Mountains Plant Recovers 15
Pacific Lamprey 16
Midway Atoll NWR 18
Northern Ute Tribe Honors Elders 20
Honors 25
Director’s Corner 28

Effects Of Management Practices On Grassland Birds: Horned Lark, Meghan F. Dinkins, Amy L. Zimmerman, Jill A. Dechant, Barry D. Parkin, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Betty R. Euliss

United States Geological Survey: Effects of Management Practices on Grassland Birds

Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which …

Giving Baculoviruses A Better Edge, Arthur H. Mcintosh, Cynthia L. Goodman, James J. Grasela, Ben Hardin

Agricultural Research Magazine

Scientific advancements built on an understanding of what nature already provides are leading to environmentally friendly crop-pest control by either biological agents or specifically designed synthetic antiinsect compounds. A case in point: research on baculoviruses.

Baculoviruses are rod-shaped DNA viruses, many of which begin their life cycle reproducing inside cells. In the nuclei of caterpillar cells infected with baculoviruses, viral progeny multiply and are incorporated into protective polyhedronshaped protein structures called occlusion bodies. Infected caterpillars die and contaminate the leaf surfaces with the occlusion bodies. Then, healthy caterpillars ingest the occlusion bodies and release the virus when feeding on contaminated …

Paylean® Improves Growth And Carcass Merit Of Pigs With 25% And 50% Nebraska Index Line Genes, Rodger K. Johnson, D. Petry, Phillip S. Miller, R. Fisher

Nebraska Swine Reports

The Nebraska Index Line excels in reproduction and is being used in industry breeding programs. However, because it has been selected only for litter size since 1981, growth and carcass merit of pure-line pigs are below industry standards. The objectives of this experiment were 1) to compare growth and carcass traits of Index cross pigs with either 50% or 25% Line I genes in a crossbreeding system typical of how the line is used in the industry and 2) to determine the effects of feeding 18 g PAYLEAN® per ton during the last 28 days of the feeding period on …

2002 Nebraska Swine Report, Duane Reese

Nebraska Swine Reports

Nutrition
Comparison of Swine Performance When Fed Diets Containing Roundup Ready® Corn, Parental Line Corn, or Two Commercial Corns
Niacin and Vitamin B12 Requirements of Weanling Pigs
Phytase Sources in Pelleted Diets
Managing Swine Dietary Phosphorus to Meet Manure Management Goals
Update on the Economics of Feeding Ractopamine (PayleanTM) to Finishing Pigs
Defining the Optimal Feed Budget System for Terminal-Crossed, Growing-Finishing Barrows
Effects of Glutamine on Growth Performance and Small Intestine Villus Height in Weanling Pigs
Influence of Linoleic Acid Isomers on Body Fat
Dietary Amino Acid Utilization for Body Protein Deposition-Current and Future Research

Genetics
Reproductive Responses in the …

Sorting And Mixing Effects In A Wean-To-Finish Facility, Mike Brumm

Nebraska Swine Reports

An experiment was conducted to evaluate whether removing and mixing lightweight pigs in a wean-to-finish facility resulted in improved pig performance to slaughter compared to never removing pigs from a pen from weaning to slaughter. Two populations of pigs were compared. The removed and mixed population consisted of pens comprised of 1) 20 pigs per pen with the five lightest pigs removed three weeks after weaning and 2) 15 pigs per pen with the pen comprised of the five lightest pigs from three of the 20 pig pens. The unsorted population consisted of 15 pigs per pen from weaning to …

Effectiveness Of Pork Quality Assurance Training For Youth, Rosemarie Nold

Nebraska Swine Reports

Over 3,500 youth in Nebraska were trained and certified in Pork Quality Assurance (PQA) in 1999. Quality assurance training had an impact on the youths’ opinions about quality assurance and consumers and on the youths’ knowledge of quality assurance practices. Emphasis on character development and decision-making skills translated into positive responses about the responsibilities of a livestock producer to animals and consumers. While most youth understood at least some of their responsibilities prior to completing the training, the quality assurance training served to reinforce the understanding of those youth and also to help all youth recognize the breadth of the …

Economic Analysis Of The Selection Response In The Ne Index Line, D. B. Petry, B. P. Mcallister, Rodger K. Johnson

Nebraska Swine Reports

The objective was to estimate economic effects of 19 generations of selection for increased litter size in the NE Index line. Using realized biological data, 1,250-sow enterprises based on Index line and Control line females were simulated. Each system was closed to introduction of females and included pureline females mated to produce replacement pureline and F₁ gilts, and F₁ females mated to terminal cross boars to produce market progeny. Costs of production and income statements were produced using the reproductive, growth and carcass data from the NE Index (I) and Control (C) lines reported in the two preceding …

Summary Report On The Bird Friendly Building Program: Effect Of Light Reduction On Collision Of Migratory Birds., Lesley J. Evans Ogden

Fatal Light Awareness Program (FLAP)

Most migratory songbirds are nocturnal migrants, which makes them vulnerable to collision with lighted structures they encounter along their flight path during migration. The Fatal Light Awareness Program (FLAP) was formed by a group of concerned citizens to rescue and relocate disoriented birds trapped in the city centre, and to record the number and species of birds killed due to collision. Following the initiation of the Bird Friendly Building (BFB) Program by FLAP and World Wildlife Fund Canada in 1997, light emissions at 16 buildings in the downtown core of Toronto were also monitored during migration seasons. This report summarizes …

Tragopan: Newsletter Of The Wpa/Species Survival Commission/Birdlife Pheasant Specialist Group 16 (2002), World Pheasant Association, Birdlife International, Iucn Species Survival Commission Pheasant Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Issue 16 (March 2002)

Editorial, Stuart Marsden

From the Chairman, Peter Garson

Cheer pheasant drawing, Dave Showler

Project roundup

News from PSG

Action Plan project review

Other news

Newly published

Research reports

Some notes on behaviour in golden pheasant Chrysolophus pictus, Liang Wei, Zheng Guangmei, Zhang Zhengwang, and Ding Changqing

Studies on habitat selection and home range of Reeves 's pheasant Syrmaticus reevesii using radiotracking techniques: Report on the progress of a WPA project, Zhang Zhengwang

Research on Sclater's monal in westem Yunnan, China: APA progress report, July to December 2001, Han Lianxian

The status and distribution of green peafowl …

Wpa News 70 (2002/2003), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2002/2003), number 70

Published by the World Pheasant Association

Morphological Variation Of Allocreadium Lobatum (Digenea: Allocreadiidae) In The Creek Chub, Semotilus Atromaculatus (Osteichthyes: Cyprinidae), In Nebraska, Usa, Monte S. Willis

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Allocreadium lobatum Wallin 1909, a parasite of fresh-water fish, was originally described as having distinct lobate testes, and subsequent descriptions have left this original description unchanged. The present study quantifies the observation of distinctly non-lobate testes that could be categorized as round or asymmetrical in addition to the previously described lobate testes. Six hundred thirty-six A. lobatum were collected from 228 Semotilus atromaculatus over a 9 month period. Overall, 21.3%, 61.6%, and 16% were found to be round, asymmetrical, and lobate testes respectively (N = 1,071). Analysis of testis morphology found the increasing presence of lobate testis as …

Cognitive Ethology And The Cost Of Anthropomorphiphobia, Robert H.I. Dale

Scholarship and Professional Work - LAS

Book review for the following titles:

Animal Minds: Beyond Cognition to Consciousness. By Donald R. Griffin, Chicago: University of Chicago Press, 2001, 376 pages. $27.50 softcover

The Smile of a Dolphin: Remarkable Accounts of Animal Emotions. Edited by Marc Bekoff, New York: Discovery Books, 2000, 240 pages. $35.00 hardcover

Minds of Their Own: Thinking and Awareness in Animals. By Lesley J. Rogers, Boulder, CO: Westview Press, 1998, 224 pages. $19.00 softcover

Methods And Compositions To Enhance Tenderness And Value Of Meat, Chris R. Calkins, Jesus Pablo Velazco De La Garcia, Nancy Coromoto Jerez-Timaure

Department of Animal Science: Faculty Publications

A method of enhancing the tenderness of meat for animal or human consumption by treatment of pre-rigor muscle with the compositions of the invention. It has been found that other quality meat traits can also be enhanced with the method of the invention.

Effect Of Conjugated Linoleic Acid On Insulin Sensitivity, Kim Hargrave, Jess L. Miner

Nebraska Beef Cattle Reports

Mice were fed a mixture of conjugated linoleic acid isomers (CLA) for nine weeks and then underwent an insulin tolerance test. CLA was then removed from the diet and a second insulin tolerance test was conducted following five weeks of recovery. CLA consumption impaired glucose response to insulin. When CLA was removed from the diet, insulin sensitivity of a low heat-loss genetic mouse line returned to normal. However, mice of a high heat-loss line remained insulin resistant for at least 32 days.

Australia: An Integrated Curriculum Unit, Grades 2-4, Institute For The Development Of Gifted Education, Ricks Center For Gifted Children, University Of Denver

Ricks Curriculum Units Series

An integrated curriculum is an instructional approach that connects the disciplines to an underlying theme or topic. Immersing students in an integrated-thematic unit provides the backdrop for experiences to occur across the disciplines. Shaping coursework around integrated themes is especially appropriate for gifted students, however using an integrated-thematic curriculum is appropriate for all learners as it develops students' abilities to make connections, to solve problems by looking at multiple perspectives, and to integrate information from different fields of experience. An integrated-thematic curriculum permits students to be active participants in their own learning as they design their own explorations and take …

2002 Beef Cattle Report

Nebraska Beef Cattle Reports

Nebraska 2002 Beef Cattle Report Table of Contents

Cow/Calf
Weaning Date for Spring Calving Cows Grazing Sandhills Range ● Replacement Heifer Development for Spring and Summer Calving Herds ● Urinary Allantoin as an Estimate of Microbial Protein Synthesis ● Metabolizable Protein Requirements of Lactating Two-Year-Old Cows ● Use of Sexed (Female) Sperm is Successful in Yearling Heifers 12 ● Estrous Synchronization Programs for Lactating Cows

Growing
Windrow Grazing and Baled-Hay Feeding Strategies for Wintering Calves ● Forage Quality and Animal Performance of Steers Grazing Smooth Bromegrass/Legume Pastures ● Supplementing Yearling Summer-Grazing Cattle with Fat and Protein and Subsequent Feedlot Performance …

Crude Protein And Wet Corn Gluten Feed Levels For Steam Flaked Corn Finishing Diets, Hushton Block, Casey Macken, Terry J. Klopfenstein, Rob Cooper, Rick Stock

Nebraska Beef Cattle Reports

Data from three trials suggest steam-flaked corn finishing diets for yearling steers containing corn bran benefit from inclusion of steep liquor at 10% of diet DM, and indicate steam-flaked corn finishing diets for steer calves containing 20% to 30% wet corn gluten feed resulted in optimal performance. With 20% to 30% wet corn gluten feed, calves responded to CP above 13.4% and the requirement for CP is as high as 15.0%

Effect Of Sprinkling On Heat Stressed Heifers, Shane Davis, Terry L. Mader, John Gaughan

Nebraska Beef Cattle Reports

Six heifers were housed in controlled environmental stalls. All heifers were sprinkled with water between 1300 - 1500 hours for three days followed by a two-day period in which three were sprinkled between 1200 - 1600 hours and three were not. This was followed by a one day hot period during which all heifers were sprinkled (1300 - 1500 hours). Rectal temperature and respiration rate were reduced in all animals during the first three days of heat stress. On days four and five, heifers sprinkled four hours had lower rectal temperature, respiration rate and pulse rate than heifers which were …

Use Of Sexed (Female) Sperm Is Successful In Yearling Heifers, Gene H. Deutscher, Rex Davis, George Seidel, Zell Brink, John Schenk

Nebraska Beef Cattle Reports

A two-year study was conducted on 457 yearling replacement heifers to evaluate effects of sexed (female) sperm compared to normal (control) sperm on AI conception rates, fetal sex ratio and pregnancy rates of heifers. All heifers were estrous synchronized, heat detected and bred by AI. Semen from three bulls was collected and sexed by a sperm sorter located at Colorado State University. Results showed a 3% to 13% reduction in AI conception rates of heifers inseminated with low dose, sexed sperm compared to normal dose, control sperm; with overall 50-day pregnancy rates being similar. Fetal female sex ratio was 92% …

Estrous Synchronization Programs For Lactating Cows, Gene H. Deutscher, Brent Plugge, Rex Davis

Nebraska Beef Cattle Reports

Two estrous synchronization experiments were conducted on lactating cows to compare the Select Synch program with the one injection PGF- 10-day program and the CO-Synch mass AI program. The Select Synch program in both experiments produced good results. Pregnancy rates during the synchronization period were 62% and 81% for the Select Synch program compared to 49% for the PGF and 61% for the CO-Synch programs. The Select Synch program induced estrus in some noncycling cows. However, the Select Synch program requires two injections (GnRH and PGF) and about seven days of heat detection and AI breeding.

Replacement Heifer Development For Spring And Summer Calving Herds, Gene H. Deutscher, Brent Plugge, Andy Applegarth, Rex Davis

Nebraska Beef Cattle Reports

A three-year study on heifer development of spring-born (n=240) and summer-born heifers (n=146) was conducted using sandhills ranch management. Spring-born heifers developed during the winter to reach 53% of mature weight at breeding had similar reproduction and calf production as heifers that reached 57% of mature weight. Feed costs were $22/heifer less for the lighter weight heifers. Summer-born heifers that were developed to reach 60% of mature weight at breeding in early fall had normal yearling pregnancy rates, but rebreeding rates of the 2-year-old cows were low, which caused high culling rates. Two-year-old cows calving in May produced greater calf …

Corn Bran Level In Finishing Diets And N Losses From Open-Dirt Pens, Terry J. Klopfenstein, Galen E. Erickson, Todd Milton

Nebraska Beef Cattle Reports

Three experiments were conducted with yearling steers to evaluate diet digestibility effects on N volatilization from open-dirt feedlot pens. Digestibility was decreased by increasing dietary corn bran. Corn bran was fed at 0%, 15%, or 30% of diet DM. Intakes increased linearly and ADG decreased linearly as bran inclusion increased. Manure N was increased linearly and N volatilization decreased from 74% to 54% during October to May as bran increased. No differences were observed for N balance from May to October. Decreasing diet digestibility had variable results on manure N and volatilization depending on time of year.

Phosphorus Requirement Of Finishing Feedlot Calves, Galen E. Erickson, Terry J. Klopfenstein, Todd Milton, Dennis R. Brink, Michael Orth, Kim Whittet

Nebraska Beef Cattle Reports

Feedlot calves were individually fed to determine the phosphorus required for optimum performance during a 204-day experiment. The base diet consisted of high-moisture corn and corn starch/fiber with P treatments of 0.16, 0.22, 0.28, 0.34, and 0.40% of diet DM. Calves fed 0.16% P had the lowest plasma P but it was adequate (5.7 mg/dL). Bone mineral was not influenced by treatment, suggesting that dietary P was adequate to meet performance needs. Supplementation of P is unnecessary because requirements are less than 0.16% of the diet DM.

Liming Effects Of Beef Cattle Feedlot Manure And Composted Manure, Bahman Eghball

Nebraska Beef Cattle Reports

Soil pH can be increased by manure or compost application because cattle rations usually contain limestone (calcium carbonate). From 1992 to 1996 this study evaluated effects of phosphorus and nitrogen-based manure and compost applications (annual and biennial) management strategies on soil pH level. Manure and composted manure contained about 0.9% calcium carbonate resulting in application rates of up to 1,540 lb lime per acre in four years. The surface soil (0-6 inch) pH was significantly decreased with ammonium-N fertilizer application as compared to soil in the unfertilized check or to soil receiving manure or compost. Nitrogen- based applications resulted in …

A Simulated Economic Analysis Of Altering Days On Feed And Marketing Cattle On Specific Value-Based Pricing Grids, Dillon Feuz

Nebraska Beef Cattle Reports

Profit can be increased by feeding some pens of cattle additional days on feed and selling on a pricing grid that rewards quality. Discounts for Yield Grade 4 and heavy weight carcasses for as many as 10% to 15% of a pen may not exceed the premiums for higher grading carcasses and the benefit of selling additional weight on all cattle sold. While the grid price can be increased by feeding some pens of cattle fewer days and marketing on a yield grade rewarding grid, net returns are often decreased because of selling fewer total pounds.

Evaluation Of Calcium Propionate As A Nutrient To Prevent Dark Cutting Beef, Juan Garza, Dana Hanson, Kevin Kirchofer, Chris R. Calkins, Johnny Horton

Nebraska Beef Cattle Reports

The objective of the study was to evaluate the ability of calcium propionate to prevent the dark cutting condition in beef. Angus crossbred steers (n=14) were assigned to two treatments: control and 0.25 lb of calcium propionate (NutroCAL^TM) per day for 14 days prior to (and 12 days after) the application of artificial stress with epinephrine at day 0. Biopsies of the longissimus muscle and blood samples were obtained at days –2, 0, 1, 3, 6 and 9. Calcium propionate had no effect on muscle glycogen content, extent of glycogen depletion, or glycogen repletion rates.

Influence On Body Fat Of Linoleic Acid Isomers, Kim Hargrave, Kristin Nollette, Merlyn K. Nielsen, Jess L. Miner

Nebraska Beef Cattle Reports

In two studies mice were fed diets containing either a mixture of, or individual conjugated linoleic acid (CLA) isomers in the presence or absence of essential fatty acids. Mice fed the C18:2 Δ10,12 CLA isomer lost as much body fat as those fed a mixture of isomers. This effect was not caused by the C18:2 Δ9,11 isomer (predominant in beef) or by restricted feed intake. The loss was much greater in mice consuming an essential fatty acid deficient diet versus a control diet. This supports our hypothesis that for CLA to deplete body fat, it must first be metabolized in …