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Articles 1 - 30 of 46
Full-Text Articles in Entire DC Network
The Effects Of Limestone Particle Size On Bone Health And Performance Of Pullets And Hens In Conventional Cage And Alternative Housing Systems, Pamela E. Eusebio Balcazar
The Effects Of Limestone Particle Size On Bone Health And Performance Of Pullets And Hens In Conventional Cage And Alternative Housing Systems, Pamela E. Eusebio Balcazar
Department of Animal Science: Dissertations, Theses, and Student Research
One of the major welfare issues in cage-free housing systems is bone fracture. The goal of this research was to improve bone health in layers by building better pullet skeletons and to investigate limestone particle size (LPS) effects on bone health in conventional cages and cage-free housing systems. Study 1 was a preliminary study that compared conventional cages with litter floor pens in terms of performance, bone health, and eggshell quality from 33 to 47 wk of age. Caged hens had higher egg production and eggshell strength, and improved feed efficiency, but lower tibia bone mineral content compared to floor …
Comparative Genomics Reveals Insights Into Avian Genome Evolution And Adaptation, Guojie Zhang, Cai Li, Qiye Li, Bo Li, Dennis M. Larkin, Chul Lee, Jay F. Storz, Agostinho Antunes, Matthew J. Greenwold, Robert W. Meredith, Anders Ödeen, Jie Cui, Qi Zhou, Luohao Xu, Hailin Pan, Zongji Wang, Lijun Jin, Pei Zhang, Haofu Hu, Wei Yang, Jiang Hu, Jin Xiao, Zhikai Yang, Yang Liu, Qiaolin Xie, Hao Yu, Jinmin Lian, Ping Wen, Fang Zhang, Hui Li, Yongli Zeng, Zijun Xiong, Shiping Liu, Long Zhou, Zhiyong Huang, Na An, Jie Wang, Quimei Zheng, Yingqi Xiong, Guangbiao Wang, Bo Wang, Jingjing Wang, Yu Fan, Rute R. Da Fonseca, Alonzo Alfaro-Núñez, Mikkel Schubert, Ludovic Orlando, Tobias Mourier, Jason T. Howard, Ganeshkumar Ganapathy, Andreas Pfenning, Osceola Whitney, Miriam V. Rivas, Erina Hara, Julia Smith, Marta Farré, Jitendra Narayan, Gancho Slavov, Michael N. Romanov, Rui Borges, João Paulo Machado, Imran Khan, Mark S. Springer, John Gatesy, Federico G. Hoffmann, Juan C. Opazo, Olle Håstad, Roger H. Sawyer, Heebal Kim, Kyu-Won Kim, Hyeon Jeong Kim, Seoae Cho, Ning Li, Yinhua Huang, Michael W. Bruford, Xiangjiang Zhan, Andrew Dixon, Mads F. Bertelsen, Elizabeth Derryberry, Wesley Warren, Richard K. Wilson, Shengbin Li, David A. Ray, Richard E. Green, Stephen J. O'Brien, Darren Griffin, Warren E. Johnson, David Haussler, Oliver A. Ryder, Eske Willerslev, Gary R. Graves, Per Alström, Jon Fjeldså, David P. Mindell, Scott V. Edwards, Edward L. Braun, Carsten Rahbek, David W. Burt, Peter Houde, Yong Zhang, Huanming Yang, Jian Wang, Avian Genome Consortium, Erich D. Jarvis, M. Thomas P. Gilbert, Jun Wang
Comparative Genomics Reveals Insights Into Avian Genome Evolution And Adaptation, Guojie Zhang, Cai Li, Qiye Li, Bo Li, Dennis M. Larkin, Chul Lee, Jay F. Storz, Agostinho Antunes, Matthew J. Greenwold, Robert W. Meredith, Anders Ödeen, Jie Cui, Qi Zhou, Luohao Xu, Hailin Pan, Zongji Wang, Lijun Jin, Pei Zhang, Haofu Hu, Wei Yang, Jiang Hu, Jin Xiao, Zhikai Yang, Yang Liu, Qiaolin Xie, Hao Yu, Jinmin Lian, Ping Wen, Fang Zhang, Hui Li, Yongli Zeng, Zijun Xiong, Shiping Liu, Long Zhou, Zhiyong Huang, Na An, Jie Wang, Quimei Zheng, Yingqi Xiong, Guangbiao Wang, Bo Wang, Jingjing Wang, Yu Fan, Rute R. Da Fonseca, Alonzo Alfaro-Núñez, Mikkel Schubert, Ludovic Orlando, Tobias Mourier, Jason T. Howard, Ganeshkumar Ganapathy, Andreas Pfenning, Osceola Whitney, Miriam V. Rivas, Erina Hara, Julia Smith, Marta Farré, Jitendra Narayan, Gancho Slavov, Michael N. Romanov, Rui Borges, João Paulo Machado, Imran Khan, Mark S. Springer, John Gatesy, Federico G. Hoffmann, Juan C. Opazo, Olle Håstad, Roger H. Sawyer, Heebal Kim, Kyu-Won Kim, Hyeon Jeong Kim, Seoae Cho, Ning Li, Yinhua Huang, Michael W. Bruford, Xiangjiang Zhan, Andrew Dixon, Mads F. Bertelsen, Elizabeth Derryberry, Wesley Warren, Richard K. Wilson, Shengbin Li, David A. Ray, Richard E. Green, Stephen J. O'Brien, Darren Griffin, Warren E. Johnson, David Haussler, Oliver A. Ryder, Eske Willerslev, Gary R. Graves, Per Alström, Jon Fjeldså, David P. Mindell, Scott V. Edwards, Edward L. Braun, Carsten Rahbek, David W. Burt, Peter Houde, Yong Zhang, Huanming Yang, Jian Wang, Avian Genome Consortium, Erich D. Jarvis, M. Thomas P. Gilbert, Jun Wang
Jay F. Storz Publications
Birds are the most species-rich class of tetrapod vertebrates and have wide relevance across many research fields. We explored bird macroevolution using full genomes from 48 avian species representing all major extant clades. The avian genome is principally characterized by its constrained size, which predominantly arose because of lineage-specific erosion of repetitive elements, large segmental deletions, and gene loss. Avian genomes furthermore show a remarkably high degree of evolutionary stasis at the levels of nucleotide sequence, gene synteny, and chromosomal structure. Despite this pattern of conservation, we detected many non-neutral evolutionary changes in protein-coding genes and noncoding regions. These analyses …
Holdrege Fall Field Days, Janis Paseka
Holdrege Fall Field Days, Janis Paseka
Nebraska Bird Review
The 2014 NOU Fall Field Days took place in Holdrege at the Super 8 Motel on Sept. 19–21. There were about 35 in attendance at the meeting, which was organized by Dave Heidt and Betty Grenon.
On Friday evening Dave Heidt led a humor-filled discussion on bird songs and calls and ways to remember them, as audience members suggested their own mnemonic devices. On Saturday evening, T. J. Walker gave a presentation on the Nebraska Game and Parks' program of habitat rehabilitation to benefit Ring-necked Pheasants and other species. Field trip destinations on Saturday and on Sunday morning included Harlan …
Fall Field Report, August–November 2014, W. Ross Silcock
Fall Field Report, August–November 2014, W. Ross Silcock
Nebraska Bird Review
My first paragraph from last year's fall report read as follows: "In most ways, this was a routine fall season. Most interesting from an ongoing point of view were quite a large number of sightings of passerines at rather late dates, notably among Empidonax flycatchers, wood warblers, native sparrows, tanagers, towhees, grosbeaks, and buntings." This fall was no different; the trend seems to be that final sighting dates for many species are pushing against their latest expected dates.
There were several tidbits of interest, more or less unrelated, but perhaps most notable takeaways for the season were the number of …
Subscription And Organization Information [December 2014]
Subscription And Organization Information [December 2014]
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): $25 in the United States and $35 in all other countries, payable in advance. Single copies are $7 each, postpaid, in the United States and $9 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 (one or more people) $25; Sustaining …
Index To Volume 82
Nebraska Bird Review
Abegglen, Jeff 192
Abraham, K. F. 85
Aderman, T. 80
Addy, Darren 47
Adrian, Brad 47
Ahlschwede, Carla 40
Akers, Danny 100
Alberts: Byron 143; Deb 143
Alisaukis, R. T. 85
Allen: Edward 3, 48, 143, 153; Jan 48
Allison, Scott 49
American Ornithologists' Union 192
. . .
Wright, Rick 49
Wylie, Bruce 41
Yantachka, Jennifer 143
Yellowlegs: Greater 55, 88, 108, 160, 183; Lesser 56, 88, 108, 160, 183
Yellowtbroat, Common 26, 67, 91, 117, 175, 184
Zahurones, Penny 41
Ziolkowski, D. J. 80
First Documented Nest Of Northern Saw-Whet Owl In Nebraska, Wayne J. Mollhoff
First Documented Nest Of Northern Saw-Whet Owl In Nebraska, Wayne J. Mollhoff
Nebraska Bird Review
Northern Saw-whet Owl was added to our avifauna with a list prepared by Taylor and Van Vleet (1889). The first suggestion of breeding was a second-hand report included in a paper presented at the first meeting of the Nebraska Ornithologists' Union in 1899 by M. A. Carriker, Jr., who "was told of a set of five eggs collected near Nebraska City about seven years ago" (1900), but which included no other details. At the next meeting, Bruner (1901) cited that report to include the species on a list of birds that breed in the state. Bruner, Swenk, and Walcott later …
Nebraska Bird Review (December 2014) 82(4), Whole Issue
Nebraska Bird Review (December 2014) 82(4), Whole Issue
Nebraska Bird Review
Fall Field Report, August–November 2014 ... 150
Holdrege Fall Field Days … 181
Summary of Raptor Banding Efforts at Hitchcock Nature Center, Fall 2014 ... 186
First Documented Nest of Northern Saw-whet Owl in Nebraska ... 189
In Memory of Margaret Triplett … 194
Index to Volume 82 … 195
Subscription and Organization Information ... 207
Summary Of Raptor Banding Efforts At Hitchcock Nature Center, Fall 2014, Jerry Toll
Summary Of Raptor Banding Efforts At Hitchcock Nature Center, Fall 2014, Jerry Toll
Nebraska Bird Review
The 2014 season was by far the most unusual and frustrating season since the inception of raptor banding and hawk watch at the Hitchcock Nature Center in Pottawatomie County, Iowa, just north of Crescent. Banding diurnal raptors commenced on September 7th on schedule. The month of September was typical as far as capture rates and weather systems, although we were stymied somewhat by the lack of availability of European Starlings for lure birds. House Sparrows proved a nearly adequate substitute.
During the peak period of October, weather systems that drive diurnal raptor migration worked against monitoring efforts by forcing migration …
In Memory Of Margaret Triplett
In Memory Of Margaret Triplett
Nebraska Bird Review
The NOU lost a longtime member in Kearney on August 7, 2014, when Margaret Sealing Triplett died.
Contact Zone Of The Eastern And Western Marsh Wrens In Nebraska Revisited, Mark B. Robbins
Contact Zone Of The Eastern And Western Marsh Wrens In Nebraska Revisited, Mark B. Robbins
Nebraska Bird Review
Across the northern and coastal United States and southern central Canada the Marsh Wren (Cistothorus palustris) is a widespread breeder in cattail-dominated marshes. Although it has long been considered to be polytypic based on subtle plumage characters (Parkes 1959; Phillips 1986), it was not until Kroodsma (1989, 2005) demonstrated that there was a dramatic break in the primary (song) vocalization in the northern Great Plains that anyone suggested more than one species was involved. In 1986, as part of the delineation of the breeding distribution of both vocal types, Kroodsma (1988; see map therein) audio recorded wrens at …
Stomach Content Analysis Of Recent Snowy Owl (Bubo Scandiacus) Specimens From Nebraska, Rachel L. Valenziano, Thomas E. Labedz
Stomach Content Analysis Of Recent Snowy Owl (Bubo Scandiacus) Specimens From Nebraska, Rachel L. Valenziano, Thomas E. Labedz
Nebraska Bird Review
The Snowy Owl (Bubo scandiacus) is a circumpolar bird of prey that breeds in extreme northern latitudes, including Canadian and Alaskan tundra. During winter months, some immature and non-breeding birds disperse south. North American birds may travel to southern Canada and northern parts of the United States, and in some extreme cases as far south as Oklahoma and Texas (Parmelee 1992). Although not fully understood, these irruptive events may be caused by the abundance of prey in northern Canada and Alaska (Parmelee 1992).
Prey typical of Snowy Owls are small mammals (e.g., lemmings and hares) of their home range and …
Subscription And Organization Information [September 2014]
Subscription And Organization Information [September 2014]
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): $25 in the United States and $35 in all other countries, payable in advance. Single copies are $7 each, postpaid, in the United States and $9 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 (one or more people) $25; Sustaining …
Nebraska Bird Review (September 2014) 82(3), Whole Issue
Nebraska Bird Review (September 2014) 82(3), Whole Issue
Nebraska Bird Review
Summer Field Report, June–July 2014 ... 98
Stomach Content Analysis of Recent Snowy Owl (Bubo scandiacus) Specimens from Nebraska … 122
Contact Zone of the Eastern and Western Marsh Wrens in Nebraska Revisited ... 128
2013 (25th) Report of the NOU Records Committee ... 131
Subscription and Organization Information ... 147
Summer Field Report, June–July 2014, W. Ross Silcock
Summer Field Report, June–July 2014, W. Ross Silcock
Nebraska Bird Review
This summer was marked by the "unremarkability," if there is such a thing, of the status of almost all species, especially passerines. A stark exception, however, was the pair of summering hummingbirds in a yard a few miles southeast of Chadron: Juanita Whittecar sent a collection of very good photos of these birds, detailed enough to determine that the pair of supposed Ruby-throated Hummingbirds actually consisted of a female Ruby-throated and a hybrid Ruby-throated x Broad-tailed male. Another odd phenomenon was the number of shorebird species with late Jun records, usually the brief window within which these species are absent …
2013 (25th) Report Of The Nou Records Committee, Mark A. Brogie
2013 (25th) Report Of The Nou Records Committee, Mark A. Brogie
Nebraska Bird Review
The "Official List of the Birds of Nebraska" was first published in 1988 (NOU 1988) and has been updated three times (NOURC 1997, 2004, 2009). The "Official List" has been appended twenty-three times: (Mollhoff 1989; Grenon 1990, 1991; Gubanyi 1996a, 1996b, 1996c; Brogie 1997, 1998, 1999, 2003, 2004, 2005, 2006, 2007, 2008, 2009a, 2009b, 2011, 2012, 2013; Jorgensen 2001, 2002, 2003).
The American Ornithologists' Union Checklist of North American Birds, Seventh Edition (1998) and its following supplements: (AOU: 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013) contain many taxonomic changes affecting North American birds.
The …
Game Birds Of The World: A Catalog Of The Madson Collection, Paul A. Johnsgard, Eric Fowler, Michael Forsberg, Mary Bomberger Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman
Game Birds Of The World: A Catalog Of The Madson Collection, Paul A. Johnsgard, Eric Fowler, Michael Forsberg, Mary Bomberger Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman
Paul Johnsgard Collection
This remarkable collection of ornithological specimens is a gift of Everett C. Madson, M.D., a graduate of the University of Nebraska-Lincoln, to the University of Nebraska State Museum in honor of Paul Johnsgard, Ph.D., Professor Emeritus of the School of Biological Sciences.
Contents:
Foreword
Introduction
Biography - Paul A. Johnsgard
Biography - Everett C. Madson
Species Profiles and Photographs
Tinamous (Order Tinamiformes, Family Tinamidae)
Spotted Tinamou (Nothura maculosa)
Waterfowl (Order Anseriformes)
Ducks, Geese and Swans (Family Anatidae)
Whistling Ducks (Tribe Dendrocygnini)
White-faced Whistling Duck (Dendrocygna vidu
Geese and Swans (Tribe Anserini)
Black Swan (Cygnus atratus).
Tundra [Whistling] Swan (Cygnus columbianus) …
A Review On Effects Of Aloe Vera As A Feed Additive In Broiler Chicken Diets, Darabighane Babak, Samuel N. Nahashon
A Review On Effects Of Aloe Vera As A Feed Additive In Broiler Chicken Diets, Darabighane Babak, Samuel N. Nahashon
Agricultural and Environmental Sciences Faculty Research
Prohibition of application of antibiotic growth promoters in broiler chicken diets has resulted in increased use of herbs as natural additives in broiler feeds over the recent years. Researchers particularly look for herbs that can affect such parameters as growth performance, immune response, or treatment of certain diseases. Aloe vera is a well-known herb characterized by properties such as anti-bacterial, anti-viral, anti-fungal, anti-tumor, anti-inflammatory, immunomodulatory, wound-healing, anti-oxidant, and anti-diabetic effects. During the past years, attention has shifted toward Aloe vera as a natural additive to broiler diets, and studies have shown that Aloe vera can improve immune response and growth …
Across-Year Social Stability Shapes Network Structure In Wintering Migrant Sparrows, Daizaburo Shizuka, Alexis S. Chaine, Jennifer Anderson, Oscar Johnson, Inger Marie Laursen, Bruce E. Lyon
Across-Year Social Stability Shapes Network Structure In Wintering Migrant Sparrows, Daizaburo Shizuka, Alexis S. Chaine, Jennifer Anderson, Oscar Johnson, Inger Marie Laursen, Bruce E. Lyon
School of Biological Sciences: Faculty Publications
Migratory birds often form flocks on their wintering grounds, but important details of social structure such as the patterns of association between individuals are virtually unknown. We analysed networks of co-membership in short-term flocks for wintering golden-crowned sparrows (Zonotrichia atricapilla) across three years and discovered social complexity unsuspected for migratory songbirds. The population was consistently clustered into distinct social communities within a relatively small area (~ 7 ha). Birds returned to the same community across years, with mortality and recruitment leading to some degree of turnover in membership. These spatiotemporal patterns were explained by the combination of space …
Assessing Landscape Constraints On Species Abundance: Does The Neighborhood Limit Species Response To Local Habitat Conservation Programs?, Christopher F. Jorgensen, Larkin A. Powell, Jeffrey J. Lusk, Andrew A. Bishop, Joseph J. Fontaine
Assessing Landscape Constraints On Species Abundance: Does The Neighborhood Limit Species Response To Local Habitat Conservation Programs?, Christopher F. Jorgensen, Larkin A. Powell, Jeffrey J. Lusk, Andrew A. Bishop, Joseph J. Fontaine
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Landscapes in agricultural systems continue to undergo significant change, and the loss of biodiversity is an ever-increasing threat. Although habitat restoration is beneficial, management actions do not always result in the desired outcome. Managers must understand why management actions fail; yet, past studies have focused on assessing habitat attributes at a single spatial scale, and often fail to consider the importance of ecological mechanisms that act across spatial scales. We located survey sites across southern Nebraska, USA and conducted point counts to estimate Ring-necked Pheasant abundance, an economically important species to the region, while simultaneously quantifying landscape effects using a …
Subscription And Organization Information [June 2014]
Subscription And Organization Information [June 2014]
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): $25 in the United States and $35 in all other countries, payable in advance. Single copies are $7 each, postpaid, in the United States and $9 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 (one or more people) $25; Sustaining …
2014 Nou/Iou Joint Meeting In Bellevue, Clem Klaphake
2014 Nou/Iou Joint Meeting In Bellevue, Clem Klaphake
Nebraska Bird Review
The May 16–18 combined meeting of the Nebraska Ornithologists' Union and the Iowa Ornithologists' Union at Fontenelle Forest Nature Center in Bellevue, Nebraska, was a gigantic success. Over 160 birders from Nebraska, Iowa, and 6 other states attended the 3 day event. Everyone I talked to, from novice to expert, was more than delighted with all of the activities scheduled for this event.
Our Friday evening speaker, Ty Smedes, had some wonderful photos, especially of warblers, and I heard nothing but positive comments about his program from the attendees. On Saturday afternoon Jerry Toll talked about his experiences banding Red-tailed …
Spring Field Report, March 2014 To May 2014, W. Ross Silcock
Spring Field Report, March 2014 To May 2014, W. Ross Silcock
Nebraska Bird Review
This spring period was generally uneventful for most species groups, but there were two major influxes in the east that were likely unprecedented in the memories of most Nebraska ornithologists. First was a major influx of gulls of 10 species at Carter Lake and N.P. Dodge Park in Omaha, including good numbers of California and Thayer's Gulls, as well as Iceland, and most surprisingly, a Glaucous-winged Gull. A bit later in the season was a strong influx of the rarer migrant warblers, such as Golden-winged, Blue-winged, Hooded, Cape May, Bay-breasted, and Black-throated Blue. For spice there was a Worm-eating Warbler …
What Are Blue Ross's Geese?, Paul A. Johnsgard
What Are Blue Ross's Geese?, Paul A. Johnsgard
Nebraska Bird Review
The existence of blue morph ("phase") Ross's Geese (Chen rossii) was first well documented by McLandress & McLandress (1979). They reported on several blue-morph birds seen and collected in California and Canada that morphologically appeared to be pure Ross's Geese and on others with intermediate traits that appeared to be hybrids with Lesser Snow Geese (Chen caerulescens caerulescens). They also noted that in the California wintering grounds counts held during 1976–77 there were only 3 blue morphs (0.008 percent) among the 38,825 Ross's Geese counted. At that time, only 0.02 percent of the Lesser Snow Geese …
Nebraska Bird Review (June 2014) 82(2), Whole Issue
Nebraska Bird Review (June 2014) 82(2), Whole Issue
Nebraska Bird Review
Spring Field Report, March–May 2014 ... 46
Double-crested Cormorant and American White Pelican Abundance at Sandhills Lakes during Fall Migration … 73
What Are Blue Ross’s Geese? ... 81
2014 NOU/IOU Joint Meeting in Bellevue ... 86
In Memoriam: Alice Rushton, Gertrude Wood, and Mitzi Fox … 93
Subscription and Organization Information ... 95
In Memoriam [June 2014]
Nebraska Bird Review
In memoriam: Alice Rushton, Gertrude Wood, and Mitzi Fox
Double-Crested Cormorant And American White Pelican Abundance At Sandhills Lakes During Fall Migration, Lauren R. Dinan, Joel G. Jorgensen
Double-Crested Cormorant And American White Pelican Abundance At Sandhills Lakes During Fall Migration, Lauren R. Dinan, Joel G. Jorgensen
Nebraska Bird Review
Double-crested Cormorants (DCCO, Phalacrocorax auritus) and American White Pelicans (AWPE, Pelecanus erythrorhynchos) are migratory piscivorous birds that breed in North America. Both species are abundant spring and fall migrants in Nebraska. DCCOs are also common, albeit local, breeders in northwestern Nebraska (Sharpe et al. 2001 ). DCCO and AWPE numbers have increased throughout their range in recent decades (U.S. Fish and Wildlife Service [USFWS] 2003, Sauer et al. 2013). Both species, but primarily DCCOs, have become increasingly controversial because of increased numbers and also because their principal food source is fish, a resource humans value. Concentrations of DCCOs, and to …
New Species Records And Changes In Abundance Of Waterfowl In Northwest Greenland, K. K. Burnham, D. R. Sinnett, J. A. Johnson, J. L. Burnham, J. A. Baroch
New Species Records And Changes In Abundance Of Waterfowl In Northwest Greenland, K. K. Burnham, D. R. Sinnett, J. A. Johnson, J. L. Burnham, J. A. Baroch
United States Department of Agriculture Wildlife Services: Staff Publications
Breeding populations of Nearctic and Palearctic waterfowl have undergone significant changes in abundance and distribution over the past 50 years. The Avanersuaq District in northwest Greenland is home to an assemblage of waterfowl from both geographic areas; however, minimal historic or current information is available on species abundance. In 2008 and 2009, we conducted field surveys in Greenland from 76.00_ to 77.35_N for breeding and non-breeding waterfowl and have collected anecdotal field notes of avian observations over a 20-year period (1993–2012). During these periods, we documented the first observation of a Ross’s goose (Chen rossii) and the first confirmed breeding …
The Effects Of Feed Additives, Housing Systems, And Stress On Salmonella Shedding In Single Comb White And Brown Laying Hens, Dana L. Hahn
The Effects Of Feed Additives, Housing Systems, And Stress On Salmonella Shedding In Single Comb White And Brown Laying Hens, Dana L. Hahn
Department of Animal Science: Dissertations, Theses, and Student Research
A series of studies were conducted examining feed additives, housing systems and stress on Salmonella shedding. Alternative feed additives such as prebiotics, probiotics and essential oils have been shown to reduce pathogenic bacteria colonization. Furthermore, stressors such as movement have been shown to increase Salmonella shedding. The goal of the studies was to examine if alternative ingredients reduce Salmonella shedding in alternative housing systems and through movement stress. Study 1 examined cage and cage-free housing with mannan oligosaccharide (MOS) supplementation. Treatments were arranged in a 2x2 factorial design: cage or cage free; MOS (0% or 0.08%). There was no effect …
Effects Of Conventional And Alternative Curing Methods On Processed Turkey Quality Traits, Amy Lynn Redfield
Effects Of Conventional And Alternative Curing Methods On Processed Turkey Quality Traits, Amy Lynn Redfield
Department of Animal Science: Dissertations, Theses, and Student Research
This study compared physicochemical and sensory qualities of deli-style turkey breast produced pre-converted celery juice powder (CP; for alternative curing) or sodium nitrite (SN; for conventional curing). Formulas were designed to include 0, 50, 100, 150, and 200 ppm ingoing sodium nitrite or the equivalent from CP or SN, and 3 replicates of products were manufactured. Turkey and curing brines were tumbled, stuffed, and cooked to an internal temperature of 73.9oC. Products were stabilized and sliced into 12 mm slices (physicochemical trait analysis) and 2 mm slices (sensory trait analysis). Physicochemical traits measured only on d 0 were …