Animal Sciences Commons^™

Density, Abundance, And Habitat Associations Of The Inland Swamp Sparrow (Melospiza Georgiana Georgiana) In Iowa, Tyler Harms, Stephen Dinsmore

Tyler Harms

Wetlands continue to decline throughout North America and the Prairie Pothole Region, thus emphasizing the importance of understanding population trends and habitat associations of wetland species to ensure effective conservation and habitat management of those species. We estimated density and abundance and evaluated habitat associations of the Inland Swamp Sparrow (Melospiza georgiana georgiana) in Iowa. We conducted standardized distance sampling surveys for Swamp Sparrows and measured habitat characteristics at 307 wetlands in two regions of Iowa in 2009 and 2010. We used Program Distance to model detection probability and estimate region-specific breeding densities of Swamp Sparrows at Iowa …

Influence Of Season And Time Of Day On Marsh Bird Detections, Tyler Harms, Stephen Dinsmore

Tyler Harms

Call-broadcast surveys are frequently used to elicit responses of secretive marsh birds and produce greater detection rates than passive surveys. However, little is known about how detection rates of birds from these surveys differ by season and time of day. We conducted call-broadcast surveys for eight focal species at 56 wetlands throughout Iowa from 15 May–13 June 2010 (early season) and from 15 June–10 July 2010 (late season). Our focal species were Pied-billed Grebe (Podilymbus podiceps), American Bittern (Botaurus lentiginosus), Least Bittern (Ixobrychus exilis), King Rail (Rallus elegans), Virginia Rail (Rallus …

Density And Abundance Of Secretive Marsh Birds In Iowa, Tyler Harms, Stephen Dinsmore

Tyler Harms

A decrease in wetland habitats throughout North America has caused a decline in populations of marsh birds. The objective of this study was to estimate population densities and abundances of secretive marsh birds in Iowa. Call-broadcast surveys were conducted in conjunction with distance sampling for eight species of marsh birds at wetlands in three regions of Iowa during 2009 and 2010. Regions were defined by observed microhabitat characteristics which also corresponded to physiographic regions. Region-specific density estimates were obtained using Program Distance for four species of marsh birds for which sufficient detections existed (Pied-billed Grebe [Podilymbus podiceps], Least …

New Body Mass Estimates For Canis Dirus, The Extinct Pleistocene Dire Wolf, William Anyonge, Christopher Roman

Christopher Roman

Quantitative study of the body mass of Canis dirus. Results indicate a mean body mass comparable to the extant gray wolf, suggesting larger individual animals probably exceed the body mass range of extant gray wolves.

Body Mass And Feeding Behaviour In The Extinct Pleistocene Dire Wolf, Canis Dirus, Christopher Roman

Christopher Roman

Published abstract of paper presented at the Sixty-Third Annual Meeting Society of Vertebrate Paleontology Science Museum of Minnesota St. Paul, Minnesota October 15-18, 2003.

Variation In Avian Pathogenic Escherichia Coli Colonization Levels In Chickens, Melissa Monson, Michael Kaiser, Susan Lamont

Melissa Monson

Colonization levels in five tissues after avian pathogenic Escherichia coli (APEC) inoculation were investigated in chickens to generate phenotypic data for a genome wide association study (GWAS). Bacterial loads were measured in 370 birds and varied among individuals and tissues. Mean bacterial levels were significantly different between tissues (right lung > spleen > left lung and liver > blood). There were also significant correlations in bacterial load between tissues. These data suggest that colonization levels could be used as phenotypes in GWAS and could help identify markers associated with poultry resistance to APEC infections. After verification, these markers could be used for genetic …

Effect On Gilt Behavior And Postures When Selected For Residual Feed Intake Selection In Response To A Lipopolysaccharide Challenge, Samaneh Azarpajouh, Jessica Colpoys, Nicholas Gabler, Anna Johnson, Jack Dekkers, Anoosh Rakhshandeh, Caitlyn Abell

Samaneh Azarpajouh

The objective of this study was to determine low and high-RFI gilt sickness behavior when challenged with lipopolysaccharide (LPS). This work was conducted with seven low residual feed intake gilts (RFI) and eight high RFI gilts (63±4 kg BW) from the 8th generation of the ISU Yorkshire RFI selection lines. Gilts were challenged intramuscularly with 30 µg/kg BW Escherichia coli O5:B55 LPS at 1000±1 hour. Gilts were video recorded one day before the LPS challenge (baseline) and on the treatment day (LPS challenge). Video was analyzed for lying, sitting, standing, eating and drinking using a 1-minute scan sample at two …

Association Of Different Iowa Livestock Truck Wash Stations Service Levels With Enterobacteriaceae Counts, Amber Danielson, Samaneh Azarpajouh, Anna Johnson, James Dickson, Locke Karriker, Rodney Baker, Christopher Rademacher, Troy Bigelow, Kenneth Stalder

Samaneh Azarpajouh

Data from eighteen different truck washes were used to compare the association of different service levels with Enterobacteriaceae counts. Service levels were classified into three different categories; prewash (n=78), post wash with disinfectant (n=78), and post wash without disinfectant (n=12). A total of 168 drag swabs were used for collection for the purpose of this study. Prewash services were defined as trailers before they were scraped out and washed. Post wash with or without disinfectant services were defined as after the trailers were washed and disinfectant was or was not applied. Prewash trailers tended to have higher Enterobacteriaceae counts of …

Effects Of Feeding Rumen-Degradable Valine On Milk Production In Late-Lactating Dairy Cows, Kayla Hultquist, David Casper

David Casper

The study objective was to determine if feeding the rumen-degradable AA Val can increase milk production comparable to recombinant bovine somatotropin (bST). Eight multiparous late-lactating (255 ± 26.4 d in milk) Holstein dairy cows were blocked by milk yield (34.1 ± 8.25 kg/d) and randomly assigned to 1 of 4 treatments in a replicated 4 × 4 Latin square design with 21-d periods (7 d for dietary adaptation and 14 d for data collection). Treatments were control (CON), a single injection of recombinant bST (rbST), and Val fed at 40 (V40) and 80 g/d (V80). Cows were fed a total …

Development Of Mathematical Models To Predict Volume And Nutrient Composition Of Fresh Manure From Lactating Holstein Cows, J.A.D. Ranga Niroshan Appuhamy, L.E. Moraes, L.E. Moraes, C. Wagner-Riddle, David Casper, J. France, E. Kebreab

David Casper

Organic compounds in dairy manure undergo a series of reactions producing pollutants such as ammonia and methane. Because various organic compounds have different reaction rates, the emissions could be accurately determined if amounts and concentrations of individual nutrients in manure are known. A set of empirical models were developed for predicting faecal and urinary water, carbon (C), nitrogen (N), acid detergent fibre and neutral detergent fibre output (kg/day) from lactating Holstein cows. Dietary nutrient contents, milk yield and composition, bodyweight, age and days in milk were used with or without dry matter intake (DMI) as potential predictor variables. Multi-collinearity, goodness …

Wildlife Of The Gold Coast Wetlands, Shelley Burgin, Daryl Mcphee

Daryl McPhee

Extract: Water in the landscape of the Gold Coast is dominated by marine and marine-influenced systems. The most obvious are the in-shore waters abutting the Gold Coast's world-famous beaches and estuaries. Little more than a glance at a map of the city also reveals the extensive canal estates built to take advantage of the marine waters, and indeed expand them. The waters of the rivers mix with the ocean's waters in the estuaries. These ecosystems are valuable nursery areas for marine wildlife, particularly, but not restricted to, fishes of commercial and recreational value.

Marine Environments Of The Gold Coast: Out With The Old, In With The New, Daryl Mcphee

Daryl McPhee

Extract: The marine environments of the Gold Coast comprise one of the most highly modified and heavily utilised waterways in Australia. Chapters 2 and 3 discussed changes in the historic land use patterns. Just what has this meant to the marine environments of the Gold Coast? In this chapter the contemporary marine h abitats of the Gold Coast are described, along with the fauna that those habitats support. We talk about how the current status of the habitats compares with various historical points in time, and the role of novel habitats. Given the impor tance of recreational fishing to both …

The Evolution Of Environmental Management As A Profession In Australia And New Zealand, E. Anderson, W. Haylock, Tor Hundloe, S. Molesworth, M. Morris, J. Roper-Lindsay, P. Skelton, J. Womersley

Tor Hundloe

Environmental management is a relatively new profession, having evolved since the rapid worldwide rise in environmental consciousness in the 1960s. This article, by past presidents of the Environment Institute of Australia and New Zealand, the inaugural editor of the Australasian Journal of Environmental Management, and collaborators, reflects on the establishment and development of environmental management as a profession, and the parallel development of the Institute as the focus for the profession. It concludes by considering future directions for the profession and Institute.

Increasing The Value Of Wool In Wyoming And Beyond: The Impact Of Uw's Wool Lab And Library, David Kruger

David Delbert Kruger

At the turn of the twentieth century, little more than a decade after Wyoming attained statehood, a young agricultural student at the University of Wyoming saw a pressing need to improve the quality and reputation of Wyoming wool. When John Arthur Hill became a professor in 1907, the Wool Department he created would go on to not only assist Wyoming sheep ranchers in wool production, but provide the sheep industry with a better understanding of how wool fleeces and fibers could be improved across the nation. Under Hill’s leadership and his later protege Robert Homer Burns, the Wool Department developed …

Jcpenney And His Agrarian Animals: The Award-Winning Livestock Of A Department Store Icon, David Kruger

David Delbert Kruger

Widely known for his department store chain, James Cash Penney (1875-1971) greatly contributed to American agriculture through his horse and cattle breeding enterprises. Beginning in 1917, three years after moving to New York City, Penney began using his personal capital to acquire, breed, and sell outstanding animals for agricultural purposes. By the 1920s, his Guernsey dairy herd had earned a worldwide reputation for quality and production, with herd sire Foremost eventually becoming the namesake for one of the largest dairy cooperatives in the United States. By the 1940s, Penney was personally developing award-winning beef cattle herds on the Missouri farm …

Applying Life Cycle Assessment (Lca) To Aquaculture: A Case Study Of The Tasmanian Salmon Industry, A White, Daryl Mcphee, Tor Hundloe

Tor Hundloe

No abstract provided.

Jcpenney As Cattleman, David Kruger

David Delbert Kruger

Though widely known for his department store chain and its Wyoming origins, James Cash Penney also played a prominent role as a cattleman from the 1920s until his death in 1971. This presentation will explore Penney's personal and professional involvement in the cattle industry, including his significant contributions within the Angus, Hereford, and Guernsey breeds.

Pulling The Wool Under Your Eyes: Preserving A Century-Old Wool Lab And Library At The University Of Wyoming, David Kruger

David Delbert Kruger

Sheep and wool have long been integral to the agrarian heritage of Western states, and still play a vital role in the region’s agricultural economy. From 1907-2012, Wyoming’s sole university supported wool research around the world through its Wool Department, complete with its own wool laboratory and library. When the Wool Department was permanently dissolved and its building condemned for demolition in 2012, the University of Wyoming (UW) Libraries partnered with UW Extension and the UW College of Agriculture and Natural Resources to preserve the unusual print and physical artifacts of this unique collection, as well as disseminate the spirit …

University Of Wyoming Wool Laboratory, 1907-2012, David Kruger

David Delbert Kruger

The University of Wyoming Wool Laboratory operated on campus from 1907-2012, in which time the sheep and wool industry experienced great change. For over a century, the faculty of the Wool Lab carefully cataloged research associated with sheep and wool, accumulating a collection of over 1,000 individual titles, 10,000 bound journal articles, correspondence, equipment manuals, and data notebooks, and a set of 872 preserved wool samples dating from 1837. This collection, now housed at the Emmett D. Chisum Special Collections Library at the University of Wyoming, is thought to be one of the most unique and complete collections of sheep …

Maine's Oyster Renaissance, Catherine Schmitt

Catherine Schmitt

This feature article in Maine Food & Lifestyle magazine profiles Eric Horne and Valy Steverlynk, proprietors of Flying Point Oysters in Freeport, Maine.

Prediction Of Total Phenols, Condensed Tannins, And 3-Deoxyanthocyanidins In Sorghum Grain Using Near-Infrared (Nir) Spectroscopy, L. Dykes, L. Hoffmann, O. Portillo-Rodriguez, W.L., Rooney, L.W. Rooney

Elvis A. Heinrichs

The reported high phenolic levels in sorghum have led an interest from sorghum breeding programs in developing and identifying germplasms with high phenolic levels, which require screening a large number of samples to find those with the highest levels. Since wet chemistry screening methods are slow, expensive, and destructive, the use of NIR calibration curves could be an alternative. The objectives of this project were to determine the variation range in total phenols, condensed tannins, and 3-deoxyanthocyanidin levels in a diverse set of sorghum genotypes and to assess the predictive value of NIR curves to estimate these compounds in sorghum. …

Applying Life Cycle Assessment (Lca) To Aquaculture: A Case Study Of The Tasmanian Salmon Industry, A White, Daryl Mcphee, Tor Hundloe

Daryl McPhee

No abstract provided.

Future Management And Governance Of The Queensland East Coast Inshore Finfish Fishery, Daryl Mcphee

Daryl McPhee

No abstract provided.

Marine Park Planning And Fisheries Management In Australia: Understanding The Conflict And Designing A Better Future, Daryl Mcphee

Daryl McPhee

No abstract provided.

Impacts Of The Moreton Bay Marine Park Rezoning On Commercial Fishermen, Casper Van De Greer, Morena Mills, Vanessa Adams, Robert Pressey, Daryl Mcphee

Daryl McPhee

The design of marine protected areas now typically incorporates socioeconomic data to minimize potential negative impacts on stakeholders. However, these data have limitations that are not well understood. Furthermore, whether the application of socioeconomic data in planning actually reduces avoidable negative impacts on stakeholders is rarely evaluated.

This study assessed impacts on commercial fishermen of the rezoning of the Moreton Bay Marine Park, in south eastern Queensland. Specifically, this study (1) compared estimates of opportunity costs of new no-take zones from before and after the rezoning was implemented, and (2) identified impacts of the new zoning scheme on fishing businesses …

Pulling The Wool Under Your Eyes: Preserving A Wool Lab And Library At The University Of Wyoming, David Kruger

David Delbert Kruger

Since 1909, the University of Wyoming boasted a Wool Department and one of the few wool laboratories, libraries, and scouring plants in the United States. With the decommissioning of the wool laboratory and library in 2012, University of Wyoming Libraries is working to preserve its vast contents including wool samples, book and scrapbook collections, and the process of wool research itself. University of Wyoming Libraries has partnered with UW Extension and the College of Agriculture to help preserve the history of wool research.

. Prolonged Pain Research In Mice: Trends In Reference To The 3rs, Jonathan P. Balcombe, Hope Ferdowsian, Lauren Briese

Jonathan Balcombe, Ph.D.

No abstract provided.

Pre-Settlement History May Obscure The Effect Of Forest Fragmentation On Genetic Variation In Eastern Red-Backed Salamanders, Mark Jordan, Douglas Morris, Scott Gibson

Mark A. Jordan

No abstract provided.

The Effects Of Water And Habitat Quality On Amphibian Assemblages In Two Midwest Watersheds, Abel Castaneda, Mark Jordan

Mark A. Jordan

No abstract provided.

Nitrogen Flow Pathways Through An Alpine Lake, David Epstein, Wayne Wurtsbaugh

David Epstein

No abstract provided.