Animal Sciences Commons^™

Predation Rates On Real And Artificial Nests Of Grassland Birds, William B. Davison, Eric K. Bollinger

Faculty Research & Creative Activity

We estimated nesting success at real and artificial nests of grassland birds to test the influence of nest type, nest position, and egg size on predation rates. We distributed wicker nests and realistic woven-grass nests baited with a clay egg and either a Northern Bobwhite (Colinus virginianus) egg or a House Sparrow (Passer domesticus) egg in four grasslands that were part of the Conservation Reserve Program in east-central Illinois. Nesting success averaged 86.5% for 12 days of exposure for artificial nests. For real nests, nesting success was markedly lower, averaging 39% over the entire nesting cycle and 59% during approximately …

Survey Of Pathogens In Poultry Litter In The United States, Mac Terzich, Melody J. Pope, Tim E. Cherry, Jessie Hollinger

Faculty Publications

Poultry litter is one of many components resulting from the production of broilers. Understanding poultry litter microbiological composition is very beneficial when attempting to improve the broiler's environmental conditions and searching for the best uses for this valuable industry by-product. The objective of this study was to collect samples of poultry litter throughout the United States and determine the presence of bacteria in the litter. Tests were conducted for total bacteria, Gram negative bacteria, Gram positive bacteria, Staphylococcus, Escherichia coli, and coliforms. Poultry litter samples were taken from 12 different regions throughout the United States and were analyzed …

An Evaluation Of The Presence Of Pathogens On Broilers Raised On Poultry Litter Treatment-Treated Litter, M. J. Pope, T. E. Cherry

Faculty Publications

Two trials were conducted to evaluate the presence of salmonella, campylobacter, and generic Escherichia coli on broilers raised on Poultry Litter Treatment (PLT®)-enhanced litter in comparison with those raised on untreated litter. Two Company A farms included three houses on each farm as the treated group and three houses per farm as controls. Two complete growouts were evaluated on each farm. The Company B study included 10 farms with two paired houses per farm, one house as the treated group and one house as the control. One growout was evaluated per farm. The pathogen sampling consisted of litter sampling and …

Effect Of Calving Time And Weaning Time On Cow And Calf Performance - A Preliminary Report, R. J. Pruitt, B. Epperson, B. Johnson, D. Zalesky, R. Haigh, D. Young

South Dakota Beef Report, 2000

Cows grazing native range year round were allotted to 3 management systems: 1.) A calving season starting in mid March with calves weaned in late October; 2) A calving season starting in mid March with calves weaned in mid September; and 3) A calving season starting early May with calves weaned in late October. After 2 years of the study, pregnancy rate and calving interval were not affected by management system. Average weaning weight was the highest for the March calving/October weaned group in both years. In the first year of the study, severe winter weather caused a lower calf …

The Global Decline Of Reptiles, Deja’ Vu Amphibians, J. Whitfield Gibbons, David E. Scott, Travis J. Ryan, Kurt A. Buhlmann, Tracey D. Tiuberville, Brian S. Metts, Judith L. Greene, Tony Mills, Yale Leiden, Sean Poppy, Christopher T. Winne

Scholarship and Professional Work - LAS

Reptile species are declining on a global scale. Six significant threats to reptile populations are habitat loss and degradation, introduced invasive species, environmental pollution, disease, unsustainable use, and global climate change.

Beef Cattle Implants, Dale R. Zobell, C. Kim Chapman, Kevin Heaton, Carl Birkelo

All Archived Publications

No abstract provided.

Predation Rates On Real And Artificial Nests Of Grassland Birds, William Davison, Eric Bollinger

Faculty Research & Creative Activity

We estimated nesting success at real and artificial nests of grassland birds to test the influence of nest type, nest position, and egg size on predation rates. We distributed wicker nests and realistic woven-grass nests baited with a clay egg and either a Northern Bobwhite (Colinus virginianus) egg or a House Sparrow (Passer domesticus) egg in four grasslands that were part of the Conservation Reserve Program in east-central Illinois. Nesting success averaged 86.5% for 12 days of exposure for artificial nests. For real nests, nesting success was markedly lower, averaging 39% over the entire nesting cycle and 59% during approximately …

Curassows, Guans And Chachalacas: Status Survey And Conservation Action Plan For Cracids 2000–2004 (With Spanish And Portuguese Translations), Daniel M. Brooks, Stuart D. Strahl

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Cracids (curassows, guans and chachalacas) are the most threatened family of Neotropical birds, occurring in south Texas, Trinidad and Tobago, and all Latin American mainland countries except Chile. They are a primitive, ancestral family of gamebirds (Galliformes) that play an important role in the regeneration of tropical forests through seed dispersal and predation, yet half of all species are threatened by habitat destruction and hunting. The three most critically endangered species are the horned guan, Alagoas curassow, and Trinidad piping-guan, while the four most critically endangered subspecies are three subspecies of the helmeted curassow and the northeastern bare-faced curassow.

Cracids …

Evaluation Of Commercial Adjuncts For Use In Cheese Ripening : 4. Comparison Between Attenuated And Not Attenuated Lactobacilli, M. El-Soda, S. A. Madkor, P. S. Tong

Dairy Science

No abstract provided.

Dairy Digest 2000, South Dakota State University Dairy Club

Dairy Digest

No abstract provided.

Weekly Growth Characteristics Of Consumer-Size Orlopp Turkeys Raised In Utah, David D. Frame

All Archived Publications

No abstract provided.

Weekly Feed Consumption Of Light Consumer-Size Turkeys Raised In Utah, David D. Frame

All Archived Publications

No abstract provided.

Determining The Genetic Potential Of Beef Cattle Through Ranch To Rail Programs, Dale R. Zobell, Craig Burrell, C. Kim Chapman

All Archived Publications

No abstract provided.

Managing Forage Resources For Efficient Beef Production, W. Craig Burrell, Nola A. Taylor

All Archived Publications

No abstract provided.

Protocol For Trichomonas Diagnosis In Cattle For Utah - August 2000, Clell V. Bagley

All Archived Publications

No abstract provided.

Review Of Parasites Of North American Freshwater Fishes, Second Edition, Gerald W. Esch

United States Fish and Wildlife Service: Publications

Thirty-two years ago, Glenn Hoffman published the first version of this book. I remember it well because I was teaching a field parasitology course at the W.K. Kellogg Biological Station of Michigan State University, and depended to a very great extent on various fish parasites to use for examples in class study. As a result, the book was canonical as a source of information, and it continued to serve me well as I moved elsewhere in subsequent years. I know from personal knowledge that others who worked with fish parasites were equally served by the book. My copy of the …

Selenium In A Wyoming Grassland Community Receiving Wastewater From An In Situ Uranium Mine, Pedro Ramirez Jr., Brad Rodgers

United States Fish and Wildlife Service: Publications

Water, soil, vegetation, grasshoppers (Family Acrididae), bird eggs and bird livers collected at a 23.5 hectare (58 acres) grassland irrigated with wastewater from an in situ uranium mine (Study Area) and a reference site in 1998 were analyzed for selenium and other trace elements. Bird surveys were conducted at the irrigated grassland at the in situ uranium mine to determine species use, relative abundance and behavior. We observed 23 species of birds using the Study Area. Western meadowlarks (Sturnella neglecta), red-winged blackbirds (Agelaius phoeniceus), lark buntings (Calamospiza melanocorys) and horned larks (Eremophila alpestris …

Lymphocyte Profiles In Blood And Tumors Of Arkansas Rous Sarcoma Regressor And Progressor Chickens, Brant Ward

Inquiry: The University of Arkansas Undergraduate Research Journal

The Arkansas Rous Sarcoma Regressor (AR) and Progressor (AP) lines of chickens represent an excellent model to study immune responses to tumors. Both lines of chickens initially develop tumors when injected with Rous sarcoma viros (RSV) or with DNA coding for the RSV oncogene v-src (v-src DNA). AR chickens will eventually regress the tumors whereas AP chickens will allow the tumors to progress to a terminal stage. By using both v-src DNA and RSV for tumor induction, we were able to compare the immune response to tumor antigens alone and tumor antigens in combination with viral components, respectively. To study …

Assessing Factors That May Predispose Minnesota Farms To Wolf Depredations On Cattle, L. David Mech, Elizabeth K. Harper, Thomas J. Meier, William J. Paul

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Wolf (Canis lupus) depredations on livestock cause considerable conflict and expense in Minnesota. Furthermore, claims are made that such depredations are fostered by the type of animal husbandry practiced. Thus, we tried to detect factors that might predispose farms in Minnesota to wolf depredations. We compared results of interviews with 41 cattle farmers experiencing chronic cattle losses to wolves (chronic farms) with results from 41 nearby "matched" farms with no wolf losses to determine farm characteristics or husbandry practices that differed and that therefore might have affected wolf depredations. We also used a Geographic Information System (GIS) to …

Atlas Of Essential Wildlife Habitats For Maine's Endangered And Threatened Species, Maine Department Of Inland Fisheries And Wildlife

Maine Collection

Atlas of Essential Wildlife Habitats for Maine's Endangered and Threatened Species

Maine Department of Inland Fisheries and Wildlife, 284 State Street, Augusta, Maine, 04333. 2000 Edition ("Valid through December 31, 2000").

"Printed under appropriations 014/013-09A-2004/3204-012".

All About Eggs, Unknown Unknown

All Archived Publications

This publication contains information about eggs including varieties and various recipes using eggs.

Cow-Calf Management Guide, Clell V. Bagley

All Archived Publications

No abstract provided.

Fish & Wildlife News: January/February 2000

Fish and Wildlife News

Contents:

The State of the Service 2
Service Nets Caviar Conviction 4
Ranchers Join Texas Conservation Initiative 6
A Town Pitches In 7
Bears Ahead! 8
Special Section: The Internet 16
Going to the Mall for Outreach 18
Cranes Fly In, Manager Norton Flies Out 19
Find Wetlands Near You 20
Gotcha! Caught in the Act of Outreach 26
Fish and Wildlife...In Brief 31

Fish Health For Fish Farmers - 2nd Edition, Tina Thorne

Fisheries Published Reports

2nd edition.

Disease is a departure from the normal state of health of a fish or any other animal. Diseases have no doubt occurred among fishes since these animals have occupied a place on the earth. Scientific efforts to understand the causes of disease in fishes, and to attempt to control them however, have only been made during the last sixty years.

Fishes, crustaceans and molluscs, as with other animals are subject to a wide spectrum of diseases, that can be classified as infectious or non-infectious. The vast majority of disease problems in the intensive farming of aquatic animals can …

Melanocortin-1-Receptor (Mcr-1) Gene Polymorphisms Associated With The Chicken E Locus Alleles, Andrew Ellett

Inquiry: The University of Arkansas Undergraduate Research Journal

The melanocortin 1-receptor (MCl-R) gene has been associated with E locus phenotypes in chickens. Variant alleles of the E locus are important for accurate down color sexing and also for the inhibition of unwanted tissue pigmentation in broilers. PCR (polymerase chain reaction) based tests for various replacement substitutions found in the published E allele sequences gave unexpected results when tested against known alleles of the E locus. To resolve these issues and gain a better understanding of how replacement substitutions in the MCl-R gene are affecting E locus phenotypes, a number of accessions of the e+, eb, wheaten ( ewh …

Avian Mortality At Communication Towers: A Review Of Recent Literature, Research, And Methodology, Paul Kerlinger

United States Fish and Wildlife Service: Publications

A review of the recent literature and research in progress on bird collisions with
communication towers was contracted by the U. S. Fish and Wildlife Service. In the five year period 1995 through 1999, very little research was published or conducted that is relevant to the bird-communication tower collision problem. It seems that since the major reviews of the late 1970s and early 1980s, few researchers and others have been interested in researching the problem. Before 1985, there was an enormous body of literature, mostly anecdotal that has not been examined analytically.

For the current review,, a standard literature search …

Explanation Of Statistics Used In This Report

Nebraska Swine Reports

Pigs treated alike vary in performance, due to their different genetic makeup and to environmental effects we cannot completely control. When a group of pigs is randomly allotted to treatments it is nearly impossible to get an “equal” group of pigs on each treatment. The natural variability among pigs and the number of pigs per treatment determine the expected variation among treatment groups due to random sampling.

Nebraska Competitive Livestock Marketing Act, J. David Aiken

Nebraska Swine Reports

LB835, the Nebraska Competitive Livestock Marketing Act, was adopted in 1999. The act regulates marketing and livestock ownership for packers slaughtering 150,000 or more animal units per year (150,000 steers, 350,000 calves up to 450 pounds, or 750,000 hogs). The act regulates packer livestock ownership, hog and cattle purchases and contracts, and livestock price reporting. The restrictions differ between hog and cattle purchases, but the price-reporting requirements are the same in both cases. Price-reporting requirements go into effect Feb. 15, 2000. There is some disagreement regarding when other provisions of the act take effect. LB835 took effect May 27, 1999. …

Effect Of Wean-To-Finish Management On Pig Performance, Mike Brumm, Angela K. Baysinger, Robert W. Wills, Edgar T. Clemens, Robert C. Thaler

Nebraska Swine Reports

An experiment consisting of three trials was conducted to determine the effect of wean-to-finish management systems on pig performance. Treatments consisted of: 1) wean-to-finish single stock (WF) at 7.5 ft²/pig from weaning (17 day mean age) to slaughter in a fully slatted finishing facility; 2) double stock (DS) at 3.75 ft²/pig for eight weeks following weaning and then split into two pens at 7.5 ft²/pig each; and 3) nursery (NF) at 3.75 ft²/ pig for eight weeks in a conventional nursery followed by movement to the finisher and stocked at 7.5 ft …

Animal Science Alumni Newsletter, Winter 2000

Department of Animal Science: Departmental News

Contents:

From the Department Head's Desk
Irv Omtvedt Retires After Many Years of Service With the University of Nebraska
New Faculty
Faculty Retirements
Graduate Program
Undergraduate Program
Judging Pavilion Fades From UNL Campus
Bud Britton Animal Science Golf Classic
Alumni Newsletter Receives Award
Earl Ellington Pleased With New College in Costa Rica
Deaths
Emeriti Update
Faculty Leave
Officers for Fall 2000
Recent Department Awards and Recognitions
Animal Science Leadership
Alumni News
Your Newsletter Committee
Call for Information for the Year 2001 Issue of the Animal Science Alumni Newsletter