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Articles 871 - 900 of 2638
Full-Text Articles in Poultry or Avian Science
In Memory Of William F. Rapp, Jr.
In Memory Of William F. Rapp, Jr.
Nebraska Bird Review
Former NOU president and Nebraska Bird Review editor William F. Rapp, Jr., passed away on March 13, 2013, in Rochester, New York. Rapp was born in 1918 in Newark, New Jersey, and his interest in birds began during his junior high years. He attended Rutgers University and graduated in 1944 with a degree in entomology and geology. He was on the faculty of Doane College in Crete, Nebraska, where he taught various biology courses and ornithology for nonscience students. He attended his first Nebraska Ornithologists’ Union meeting in 1947. By the next year, he was the editor of the Nebraska …
2014–2015 Christmas Bird Counts, Don Paseka
2014–2015 Christmas Bird Counts, Don Paseka
Nebraska Bird Review
Fourteen counts were held during the 2014–15 Christmas Bird Count season, which is one less than last season. Although the Beaver Valley and Harrison counts were not done this season, the Harlan County count was resumed after a twelve-year hiatus and produced several noteworthy species counts. It also should be noted that the Grand Island count was held on December 13, which is one day before the official Audubon sanctioned count period begins, but its results are included in this discussion.
Following a very mild first week of November, the second week started with a sudden cold snap which persisted …
Winter Field Report, December 2014 To February 2015, W. Ross Silcock
Winter Field Report, December 2014 To February 2015, W. Ross Silcock
Nebraska Bird Review
As with last winter, this was a rather ordinary winter ornithologically speaking, if indeed there is such a thing. There were a couple of genuine rarities to spice it up, but most of the interest was in unusual phenomena shown by a range of species. Ducks and swans and native sparrows seem to be more in evidence in mid-winter than in previous years, but it is difficult to relate winter occurrence to weather in any given year, except for isolated extreme events. There are, however, some trends showing up, as suggested by the ducks, swans, native sparrows, and a few …
A Hybrid Cliff × Barn Swallow From Western Nebraska, Charles R. Brown, Catherine E. Page
A Hybrid Cliff × Barn Swallow From Western Nebraska, Charles R. Brown, Catherine E. Page
Nebraska Bird Review
The Cliff Swallow (Petrochelidon pyrrhonota) and the Barn Swallow (Hirundo rustica) occupy sympatric breeding ranges across much of North America, often nesting at colony sites that contain both species. Mixed-species nesting aggregations typically occur in box-shaped concrete culverts underneath roads or railways. Cliff Swallows’ enclosed mud nests can be as close as 1 m to Barn Swallows’ open mud nests, and at such sites Cliff Swallows regularly usurp both inactive and active Barn Swallow nests. The close proximity of these two ecologically similar species leads to at least occasional social interaction among them, such as during …
Nebraska Ornithologists’ Union Treasurer’S Report, December 31, 2014
Nebraska Ornithologists’ Union Treasurer’S Report, December 31, 2014
Nebraska Bird Review
One-page spreadsheet constituting the Nebraska Ornithologists' Union treasurer's report at year end (December 31) of 2014. The grand total is $59,882.03.
Birds In Flight, Color Photo Section [March 2015, Pp. 23–30]
Birds In Flight, Color Photo Section [March 2015, Pp. 23–30]
Nebraska Bird Review
Photographs of Ring-billed Gull with fish, Arctic Tern, Bonaparte’s Gull, and Least Tern (p. 23); American Golden-Plovers, Great Blue Heron, Lesser Yellowlegs, Dunlin and Stilt Sandpiper (p. 24); Great Egret, Sandhill Cranes, White-faced Ibis, and Glossy Ibis (p. 25); immature Bald Eagle with Snow Goose, Turkey Vulture, Common Goldeneye, Mute Swan and cygnet, and Red-tailed Hawk (p. 26); Upland Sandpiper, Northern Bobwhite, Eastern Meadowlark, female Dickcissel, and Grasshopper Sparrow (p. 27); Barn Owl chicks, adult Barn Owl, Short-eared Owl, and Northern Saw-whet Owl in nest box with eggs, chicks, deer mice, and voles (p. 28); adult Bald Eagle, Snow Geese, …
Subscription And Organization Information [March 2015]
Subscription And Organization Information [March 2015]
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 …
Ectoparasitism Shortens The Breeding Season In A Colonial Bird, Charles R. Brown, Mary Bomberger Brown
Ectoparasitism Shortens The Breeding Season In A Colonial Bird, Charles R. Brown, Mary Bomberger Brown
School of Natural Resources: Faculty Publications
When blood-feeding parasites increase seasonally, their deleterious effects may prevent some host species, especially those living in large groups where parasites are numerous, from reproducing later in the summer. Yet the role of parasites in regulating the length of a host’s breeding season—and thus the host’s opportunity for multiple brooding—has not been systematically investigated. The highly colonial cliff swallow (Petrochelidon pyrrhonota), a temperate-latitude migratory songbird in the western Great Plains, USA, typically has a relatively short (eight to nine week) breeding season, with birds rarely nesting late in the summer. Colonies at which ectoparasitic swallow bugs (Oeciacus vicarius) were experimentally …
The Effects Of Actomyosin Disruptors On The Mechanical Integrity Of The Avian Crystalline Lens, Gah-Jone Won, Douglas S. Fudge, Vivian Choh
The Effects Of Actomyosin Disruptors On The Mechanical Integrity Of The Avian Crystalline Lens, Gah-Jone Won, Douglas S. Fudge, Vivian Choh
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Purpose: Actin and myosin within the crystalline lens maintain the structural integrity of lens fiber cells and form a hexagonal lattice cradling the posterior surface of the lens. The actomyosin network was pharmacologically disrupted to examine the effects on lenticular biomechanics and optical quality. Methods: One lens of 7-day-old White Leghorn chickens was treated with 10 μM of a disruptor and the other with 0.01% dimethyl sulfoxide (vehicle). Actin, myosin, and myosin light chain kinase (MLCK) disruptors were used. The stiffness and the optical quality of the control and treated lenses were measured. Western blotting and confocal imaging …
Postnatal Growth Rates Covary Weakly With Embryonic Development Rates And Do Not Explain Adult Mortality Probability Among Songbirds On Four Continents, Thomas E. Martin, Oteyza C. Oteyza, Adam E. Mitchell, Ahva L. Potticary, Penn Lloyd
Postnatal Growth Rates Covary Weakly With Embryonic Development Rates And Do Not Explain Adult Mortality Probability Among Songbirds On Four Continents, Thomas E. Martin, Oteyza C. Oteyza, Adam E. Mitchell, Ahva L. Potticary, Penn Lloyd
Wildlife Biology Faculty Publications
Growth and development rates may result from genetic programming of intrinsic processes that yield correlated rates between life stages. These intrinsic rates are thought to affect adult mortality probability and longevity. However, if proximate extrinsic factors (e.g., temperature, food) influence development rates differently between stages and yield low covariance between stages, then development rates may not explain adult morality probability. We examined these issues based on study of 90 songbird species on four continents to capture the diverse life-history strategies observed across geographic space. The length of the embryonic period explained little variation (ca. 13%) in nestling periods and growth …
Effects Of Post-Hatch Holding Time And Early Nutrition Strategies On Growth Performance, Carcass And Skeletal Characteristics Of Young Chickens, Marquisha A. Paul
Effects Of Post-Hatch Holding Time And Early Nutrition Strategies On Growth Performance, Carcass And Skeletal Characteristics Of Young Chickens, Marquisha A. Paul
Theses and Dissertations--Animal and Food Sciences
The study objectives of this thesis were to evaluate the effects of delayed feeding and specific aspects of the Programmed Nutrition (PN) feeding strategy (Alltech, Inc.) on growth performance, carcass characteristics, and skeletal characteristics of commercial broiler chicks through market age, as well as investigate the effects of breed and the PN feeding strategy on early growth and development. When commercial broiler chicks were fed reduced nutrient diets, delayed feeding decreased early growth performance and carcass yield (P<0.05), whereas post-hatch PN conditioning for 72 hours improved early growth performance and alleviated the negative effects of delayed feeding on carcass yield (P<0.05). Through market age, delayed feeding improved Gain: Feed (P<0.05), while PN had the opposite effect. Interactive effects and main effects of delayed feeding and PN were observed for tissue mineral concentration (P<0.05). PN lowered bone ash % (P<0.05) and increased meat oxidation of broiler chicks during storage (P<0.05). PN also had negative effects on early growth performance and bone breaking strength (P<0.05) of various meat-type breeds, but especially for non-commercial, moderate-growing or fast-growing breeds. In conclusion, PN may be suitable for commercial broiler chicks that experience delayed feeding and are fed reduced nutrient diets.
Interaction Of Dietary Supplements Of Organic Trace Minerals And Phytase On Growth Performance And Mineral Metabolism Of Replacement Pullets, Alfredo Mañón
Theses and Dissertations--Animal and Food Sciences
Effects of dietary supplementation with low levels of organic sources of trace minerals in place of normal levels of their inorganic salts and phytase on growth performance and mineral metabolism were evaluated in two studies using pullets of white and brown shell laying strains. The organic sources were proteinates of copper, iron, manganese and zinc and selenium yeast. A corn-soybean meal diet was fed alone, plus inorganic minerals or plus organic minerals, and with or without phytase in a 3 x 2 factorial arrangement. Twelve groups of 16 pullets, 2 weeks old, were used per treatment. Compared with inorganic minerals, …
Energetic Costs Of Aggression In The Northern Cardinal, Sarah K. Wright
Energetic Costs Of Aggression In The Northern Cardinal, Sarah K. Wright
Honors Program Theses
Territorial aggression during the nonbreeding season has not been sufficiently studied, especially in a natural system. There has been some evidence to suggest that the steroid hormone precursor, dehydroepiandrosterone (DHEA) may regulate male aggression during the nonbreeding season, rather than testosterone. This study aimed to investigate the effects of energy status (through food supplementation) on nonbreeding aggression in the Northern Cardinal and add to the pre-existing evidence of a DHEA-mediated mechanism of aggression. It was hypothesized that if aggression was maintained for an extended period of time, metabolite levels would favor energy usage (more glycerol and less triglycerides) compared to …
Effect Of Lysozyme Or Antibiotics On Faecal Zoonotic Pathogens In Nursery Pigs, J E. Wells, E. D. Berry, N Kalchayanand, L A. Rampel, M Kim, W. T. Oliver
Effect Of Lysozyme Or Antibiotics On Faecal Zoonotic Pathogens In Nursery Pigs, J E. Wells, E. D. Berry, N Kalchayanand, L A. Rampel, M Kim, W. T. Oliver
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Aims: The objective of this study was to determine the effect of lysozyme and antibiotics on zoonotic pathogen shedding in faeces from nursery pigs housed without and with an indirect disease challenge. Methods and Results: Two replicates of approximately 650 pigs each were weaned and randomly assigned to one of 24 pens in either a nursery room that had been fully disinfected or a nursery room left unclean. Pigs were randomly assigned to control diet (Control), control diet + antibiotics (Antibiotic; chlortetracycline and tiamulin), or control diet + lysozyme (Lysozyme; 100 mg kg ^-1 diet). Rectal swab samples were collected …
Soap Box Reprioritizing Avian Conservation Efforts, Travis L. Devault
Soap Box Reprioritizing Avian Conservation Efforts, Travis L. Devault
Human–Wildlife Interactions
No abstract provided.
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 …
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
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 …
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.
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 …
Central Administration Of Neuropeptide Y (Npy) And Vasotocin 4 Receptor (Vt4r/V1ar) Antagonists On Food Intake And A Stress Response In Chicks, Megan Ann Hancock
Central Administration Of Neuropeptide Y (Npy) And Vasotocin 4 Receptor (Vt4r/V1ar) Antagonists On Food Intake And A Stress Response In Chicks, Megan Ann Hancock
Graduate Theses and Dissertations
The objective of this study was to determine the central effect of the VT4R antagonists (SR-49059 and H-5350 (Manning compound)) on corticosterone (CORT) levels during stress and food intake. A 22-gauge stainless steel guide cannula was surgically implanted into the lateral ventricle of the birds. A preliminary study was done to test the antagonists and their role on food intake. Birds were injected with saline, NPY (4µg), NPY (4µg)+SR-49059 (250ng), or NPY (4µg)+Manning compound (250ng). Birds injected with saline had the lowest 1h food intake (17.7g1.6). Birds injected with NPY+saline had a significantly higher intake (27.1g 1.0), which was enhanced …
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 …
Identification And The Significance Of Selective Proteins In Bile And Plasma Of Normal And Health-Compromised Chickens, Balamurugan Packialakshmi
Identification And The Significance Of Selective Proteins In Bile And Plasma Of Normal And Health-Compromised Chickens, Balamurugan Packialakshmi
Graduate Theses and Dissertations
During the last 50 years, animal breeding programs in commercial poultry have made significant progress in the bodyweight gain of broilers but led to several metabolic and skeletal disorders. Lameness associated with proximal femur known as femoral head separation (FHS) or femoral head necrosis (FHN) is one of the major metabolic disorders in poultry industry. In order to select for healthy chickens, markers that can distinguish between healthy and affected birds are required. Biomarkers from blood represent an ideal and rich source of markers which can be obtained using minimally invasive methods. The biomarkers were explored in an experimental model …
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 …
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 …
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 …
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
Evaluation Of Low-Tannin Grain Sorghum In Broiler Chicken Diets, Samantha Aniecia Shelton
Evaluation Of Low-Tannin Grain Sorghum In Broiler Chicken Diets, Samantha Aniecia Shelton
Graduate Theses and Dissertations
Research trials were conducted to evaluate the effects of different levels of dietary grain sorghum on broiler live performance, carcass yield and shank (leg) and breast skin coloring. Iso-caloric diets were formulated where sorghum replaced corn at rates of 0% (control), 20, 40, 60, 80 and 100% for a total of 6 diets. For each of the two trials, 1500 Cobb 500 male broiler chicks were randomly allocated to 60 pens with 25 birds per pen (10 pens/diet) and grown to 46 days for the first research trial and 41 days for the second. There were no differences (P>.05) …
Evaluation Of Betaine And Methionine Replacement For Improving Performance And Meat Quality For Broilers Reared Under Higher Temperature Conditions, Malea Graham Frank
Evaluation Of Betaine And Methionine Replacement For Improving Performance And Meat Quality For Broilers Reared Under Higher Temperature Conditions, Malea Graham Frank
Graduate Theses and Dissertations
4,096 broiler chicks were randomly allocated to 128 floor pens (32 birds/pen). 2,048 day-old male broilers were placed in the east end of a barn, and the following week 2,048 day-old male broilers were placed in the west end. At each placement day, half of the chicks were Cobb 500 and half were Ross 708, and each pen contained only one breed source. East end birds received coccidiostat in the feed, west end received coccidial vaccine, and each end was under separate environmental control. Eight diets contained two levels of coccidiostat (0, 1 lb./ton), methionine (deficient, adequate), and betaine (0, …
Protein Turnover In Broiler, Layers, And Broiler Breeders, Karen Vignale Lake
Protein Turnover In Broiler, Layers, And Broiler Breeders, Karen Vignale Lake
Graduate Theses and Dissertations
Protein turnover in skeletal tissue for broiler breeders has shown to increase at sexual maturity and then decline with increased egg production. Regarding broiler chickens the industry is facing two situations that need to be clarified: the appearance of white stripes in birds over 56 days of age and the positive effect in breast meat yield that supplementation of 25OH-D3 is causing. A series of studies were conducted to determine the effect of sexual maturity in protein turnover in broiler breeders and laying hens and to understand the effect of 25OHD3 in breast meat yield in broiler chickens and why …