Animal Sciences Commons^™

Objective Development Of Grazing Strategies, Patrick E. Reese

Range Beef Cow Symposium

A grazing strategy is a plan for accomplishing a set of objectives based on comprehensive knowledge of available resources, and the production and marketing environment. Management can be greatly simplified when grazing strategies are based on clearly stated and prioritized resource-management and livestock-production objectives (Fig. I ). Decisions on when and how to use plant resources have profound effects on the success of grazing strategies. Plant resources can be used for livestock production or wildlife cover and ecosystem functions such as hydrologic condition and site stability.

While many rangelands in the central and northern Great Plains are dominated by grasses …

A Systems Approach To Production From Weaning To Harvest, Terry J. Klopfenstein, D. J. Jordon, Galen E. Erickson

Range Beef Cow Symposium

Although some summer and fall calving occurs, the majority of calves in the Northern States are born in the spring. Therefore, to have a consistent supply of feeders entering feedlots, a variety of stocker programs are used. About 30% of calves produced in the U. S. enter the feedlot as calf-feds. Some of these calf-feds are weaned and enter the feedlot 30 to 40 days later. It is also common for calves to be backgrounded two to six months before entering the feedlot.

Many calves enter yearling programs. These cattle are nutritionally restricted to varying degrees and for various times. …

Considerations When Selecting A Calving Season, Connie R. Quinn

Range Beef Cow Symposium

Every ranch is backed by a unique set of resources. The resources are used to cost effectively produce a consumer acceptable product. Ranch resources can be simply categorized into forage base, genetics base and the commitment to good management practices. Range cattle management must be based on relating forage quality and quantity to the nutrient requirements of the animal for a given level of production. In order to be cost effective it is important that the forage base optimally express the genetic potential of the cowherd, with little or no supplemental feed.

Today’s rancher, according to Jim Gosey of the …

A Cowboy’S Guide To Building Teams, Tom G. Field, Michael G. Hays

Range Beef Cow Symposium

One of the daunting challenges facing the cattle industry in the near term is the ability to attract and retain skilled and effective human resources to the ranching business. We currently have at our disposal vast amounts of information about marketing, health, reproduction, nutrition, genetics, forage management, and financial decision-making to create and sustain a viable cow-calf, stocker, or feedlot business. In fact, any of the existing enterprise managers in the industry likely excel in a majority of the aforementioned topics. However, one of the major obstacles to success in agriculture is a failure to recognize that human beings are …

Yellowtail Flounder (Limanda Ferruginea) Bycatch During The 1999 Commercial Sea Scallop Opening Of Georges Bank Area Ii, William D. Dupaul, David Rudders, Todd Gedamke

Reports

No abstract provided.

Tb181: 2000 Milk Processing Costs In Maine, Timothy J. Dalton, George K. Criner, John Halloran

Technical Bulletins

The objective of this study is to provide an estimate of the theoretically lowest achievable costs of processing and distributing milk in Maine. This processing and distribution margin (referred hence as "margin") is estimated for a state-of-the-art processing plant assumed to be located in the Portland, Maine, area. The plant is assumed to produce and distribute a line of products including white milk, chocolate milk, orange juice, and other fruit drinks, and to distribute additional purchased products such as cheeses and yogurts. This report will present information for four plants to better study the impact of plant size and production …

Protective Killed Leptospira Borgpetersenii Vaccine Induces Potent Th1 Immunity Comprising Responses By Cd4 And Gammadelta T Lymphocytes, B. M. Naiman, D. Alt, C. A. Bolin, R. Zuerner, Cynthia Baldwin

Cynthia Baldwin

Leptospira borgpetersenii serovar hardjo is the most common cause of bovine leptospirosis and also causes zoonotic infections of humans. A protective killed vaccine against serovar hardjo was shown to induce strong antigen-specific proliferative responses by peripheral blood mononuclear cells (PBMC) from vaccinated cattle by 2 months after the first dose of vaccine. This response was absent from nonvaccinated control cattle. The mean response peaked by 2 months after completion of the two-dose vaccination regimen, and substantial proliferation was measured in in vitro cultures throughout the 7 months of the study period. Variations in magnitude of the response occurred among the …

Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis

Bulletins

No abstract provided.

Index From Nebraska Bird Review December 2001 Volume 69 Number 4

Nebraska Bird Review

INDEX (12 pages) A-Z

Adams, Betty 23

Alexander, Irene 23

Allen, Elizabeth 3, 47,159

Allison, Mary 22

American, Redstart 184

Amiotte, Sue 48

Andrews, Ron 5

Anhinga 161

Arizona 96

Avocet, American 37, 57, 94, 116, 140, 169, 204

Babbitt, Charles E. 133

Bachel, Elaine 47

Badura, Laurel 47, 160

Barth, Roland 48

Bedows, Elliott 23, 107, 159

Beede, Dillon 22

Benson, Joan 18

Bielenburg, Warren 23

Yellowlegs
Greater 37, 46, 57, 116, 142, 146,148,169
Lesser 38,46, 57, 116, 133, 136-137,140,142,147,169
sp. 204

Yellowthroat, Common 40, 73, 128, 151,158,185

Young, Kay 23

Masthead From Nebraska Bird Review December 2001 Volume 69 Number 4

Nebraska Bird Review

The Nebraska Bird Review (http://rip.physics.unk.eduINOU/) 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): $14.00 in the United States; $18.00 for all foreign countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, and $5.00 elsewhere. Send orders for back issues to Mary Prichard, NOU Librarian, University of Nebraska State Museum, Lincoln, NE 68588-0514.

Memberships in NOU (on a calendar year basis only): Active, $15.00; Sustaining, $25.00; Student, $10.00; Family Active, $20.00; Family Sustaining, …

Fall Field Report, August-November 2001, W. Ross Silcock

Nebraska Bird Review

This Fall Report offers something for everybody. Leading off are significant breeding reports of Ruddy Duck in the Rainwater Basin and Snowy Plover at Lake McConaughy. As observers bird more regularly in late July to early August we are finding that many species begin to move earlier than often realized. There were many reports of birds such as failed breeders, molt migrants, and early-fledged juveniles wandering about. Some of these prove tough identification challenges, too. Early birds were mostly water-related; Eared Grebe, Red-necked Grebe, Double-crested Cormorant, and Osprey, but also Prairie Falcon in the east, and Rusty Blackbird too. Some …

Nebraska Bird Review- Whole Issue December 2001 Volume 69 Number 4

Nebraska Bird Review

Table of Contents

Fall Field Report, August-November 2001 Compiled
by W. Ross Silcock ..........................158

Species Accounts.......................... 160

Bird Records of Sporting Editor Sandy Griswold on Fowl
Hunting Trips in the Sand Hills from 1887 to 1928
by J. E. Ducey ..........................190

Index for Volume 69, 1-4 ..........................212

A Cladistic Analysis And Taxonomic Revision Of The Plesiosauria (Reptilia: Sauropterygia), F. Robin O’Keefe

Biological Sciences Faculty Research

The Plesiosauria (Reptilia: Sauropterygia) is a group of Mesozoic marine reptiles known from abundant material, with specimens described from all continents. The group originated very near the Triassic–Jurassic boundary and persisted to the end- Cretaceous mass extinction. This study describes the results of a specimen-based cladistic study of the Plesiosauria, based on examination of 34 taxa scored for 166 morphological characters. The Pliosauroidea is found to by polyphyletic due to the inclusion of the Polycotylidae; this second clade is instead a member of the Plesiosauroidea, and thus more closely related to elasmosaurs than to other ‘pliosaurs’. Characters of body proportion …

The History Of Life In Nebraska: A Time-Travel Adventure, Paul A. Johnsgard

Papers in Ornithology

It is difficult for humans, whose lives are measured in years and decades, to fathom the age of the Earth, whose history is patiently but inexorably written on thin pages of landscape, each lasting millions of years or more. As an exercise in Earth-time, let a single mile represent a million years. Thus .5 mile would represent 500,000 years, .10 mile equals 100,000 years, .01 mile (52 feet) equals 10,000 years; .001 mile (5.2 feet) equals 1,000 years, and about 6 inches equal 100 years. A decade would equal about half an inch. It is 450 miles from the 60th …

Effects Of An Increasing Harbor Seal Population On Changes In Sites Used For Pupping, Nikolina Guldager

Electronic Theses and Dissertations

Aerial survey data from 198 1 to 1997 of an increasing harbor seal (Phoca vitulina concolor) population in Penobscot and Blue Hill bays, Maine, were used to evaluate spatial and temporal patterns of use of pupping sites by mother-pup pairs. Pupping sites refer to haul-out sites where pups were observed during surveys, and are assumed to be used consistently from birth to weaning. Sites with pups were spatially clustered to remove spatial auto-correlation, reduce temporal variability and provide biologically cohesive and independent sample units. Spatial, temporal and habitat analyses were completed for 2 spatial scales: individual sites and …

Genomic Organization Of Infectious Salmon Anemia Virus, Trent Rector

Electronic Theses and Dissertations

Infectious salmon anemia virus (ISAV) is an emerging pathogen of farmed Atlantic salmon (Salmo salar). The development of an effective ISA virus vaccine is a high priority for salmon producers in the U.S. and elsewhere. The process of developing a recombinant vaccine requires complete genetic characterization of the virus. Toward this end we have cloned, sequenced and determined the organization of the eight segments of single-stranded RNA from ISA virus isolate CCBB. The virus was grown in cell culture and purified by density gradient ultracentrifugation. Viral RNA was isolated from purified ISAV and used in the construction of two different …

Variables Influencing Nest Success Of Eastern Wild Turkeys In Connecticut: Nesting Habitat, Home Range-Scale Fragmentation, And Nest Attentiveness, Shelley M. Spohr

Electronic Theses and Dissertations

Nest success is the most important demographic parameter influencing rates of population change of eastern wild turkeys (Meleagris gallopavo si1vestris) and many variables operating at multiple spatial and temporal scales may influence whether a nest is successful. Most studies of nest success and survival of turkeys have occurred in forested or agricultural landscapes; variables influencing nest success have not been studied in suburban landscapes. My objectives were to: 1 ) quantify survival and reproductive parameters of eastern wild turkey hens in the suburban environment of southeastern Connecticut and compare results to studies conducted in other northeastern states; 2) …

Gametogenic Cycles Of Marine Mussels, Mytilus Edulis And Mytilus Trossulus, In Cobscook Bay, Maine, Aaron P. Maloy

Electronic Theses and Dissertations

The Mytilus edulis species complex includes three smooth-shelled blue mussels, M. edulis (Linnaeus 1 75 8), M trossulus (Gould 1 850), and M galloprovincialis (Lamarck 18 19). When any two of theses species occur sympatrically, hybridization and backcrossing of hybrid and parental genotypes is evident. Despite introgression of genes between taxa their genetic integrity is maintained. To test the hypothesis that a temporal variation in species-specific spawning times is the mechanism limiting hybridization and maintaining genetic integrity in a M edulis and M. trossulus hybrid zone in eastern Maine, mussels were sampled on monthly to semi-monthly intervals throughout 2000 from …

Comparative Anatomy Of The Lower Respiratory Tract Of The Gray Short-Tailed Opossum (Monodelphis Domestica) And North American Opossum (Didelphis Virginiana), Lee Anne Cope

Doctoral Dissertations

The present study describes the lower respiratory tract anatomy of the gray short-tailed opossum (Monodelphis domestica) and North American opossum (Didelphis virginiana). The trachea of the gray short-tailed opossum consists of 25 c-shaped tracheal cartilages. The trachea of the North American opossum consists of 28 c-shaped cartilages. The right lung of both species is separated into cranial, middle, caudal and accessory lobes by interlobar fissures. The left lung consists of unseparated cranial and caudal lobes. The right and left pulmonary arteries of the gray short-tailed and North American opossums divide into pulmonary lobar arteries. The pulmonary lobar veins join to …

Statement On The Use Of Crassostrea Ariakensis In Chesapeake Bay, Virginia Institute Of Marine Science

Reports

In 1995 the Virginia General Assembly, through House Joint Resolution 450, directed the Virginia Institute of Marine Science (VIMS) to begin research on non-native oyster species for possible use in Chesapeake Bay. VIMS proceeded in a responsible manner by using sterile triploid oysters to prevent an unintended introduction. One of the results of our research has been the identification of an oyster species, Crassostrea ariakensis, that grows well in the Chesapeake Bay, is tolerant of local diseases, and has been well received in marketing trials. Recognizing that there is widespread commercial interest in this species, we are providing this statement …

Red Drum Tag Return Data Overview Virginia Game Fish Tagging Program 1995-2000, Jon Lucy

Reports

No abstract provided.

Shark Attack In Virginia: A Report To The Governor's Task Force, J. A. Musick

Reports

No abstract provided.

Sp592-Site Selection Factors For New Poultry Facilities, The University Of Tennessee Agricultural Extension Service

Animals/Livestock

Proper siting of new poultry facilities is extremely important. Problems can result if facilities are built in unfavorable locations. The best time to handle potential problems is BEFORE they occur. Proper planning will help prevent environmental problems from occurring, and will save time, money and headaches in the long run.

Kentucky Warbler (Vol. 77, No. 4), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.

High Frequency Of Extra-Pair Paternity In Eastern Kingbirds, Michael T. Murphy, Diane L. Rowe, Robert C. Fleischer, Paul G. Wolf

Biology Faculty Publications

Genetic parentage in the socially monogamous and territorial Eastern Kingbird( Tyrannust tyrannus) was examined in a central New York population by multilocus DNA fingerprinting. Extra-pair young were identified in 60% (12 of 20) of nests. Of the 64 nestlings profiled, 42% were sired by extra-pair males, but no cases of conspecific brood parasitism were detected. These results are markedly different from a previous electrophoretic study of the same species in a Michigan population, which reported 39% of nestlings were unrelated to one (typically the mother, quasiparasitismo)r both (conspecificb roodp arasitism) of the putative parents. In the New York population, extra-pairp …

High Frequency Of Extra-Pair Paternity In Eastern Kingbirds, Diane L. Rowe, Michael T. Murphy, Robert C. Fleischer, Paul G. Wolf

Biology Faculty Publications and Presentations

Genetic parentage in the socially monogamous and territorial Eastern Kingbird( Tyrannust tyrannus) was examined in a central New York population by multilocus DNA fingerprinting. Extra-pair young were identified in 60% (12 of 20) of nests. Of the 64 nestlings profiled, 42% were sired by extra-pair males, but no cases of conspecific brood parasitism were detected. These results are markedly different from a previous electrophoretic study of the same species in a Michigan population, which reported 39% of nestlings were unrelated to one (typically the mother, quasiparasitismo)r both (conspecificb roodp arasitism) of the putative parents. In the New York population, extra-pairp …

Cheese Making With Bacteriophage Resistant Bacteria, Clair D. Hicks

Animal and Food Sciences Faculty Patents

A method is provided for reducing or preventing bacteriophage attack on bacteria used in a cheese making process. The method includes (a) treating a blocker peptide precursor with a protease enzyme that hydrolyzes the precursor to produce blocker peptides; (b) collecting the blocker peptides so produced; (c) formulating a starter media with the blocker peptides; (d) growing bulk cultures of cheese making bacteria in the inoculated starter media; and (e) adding bacteria grown in the inoculated starter media to a fermentation medium for producing cheese. The present invention also includes a method of making cheese and cheese produced by the …

Nebraska And South Dakota 2000 Missouri River Recreational Use Survey: Supplement Ii, Nebraska And South Dakota 2000 Missouri River Recreational Use Survey, Fort Randall Tailwater To Big Sioux River, Gerald Mestl, Gerald Wickstrom, Clifton Stone

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The 2000 Missouri River recreational use survey ran 1 April 2000 through 31 December 2000 and covered the Fort Randall Dam to Big Sioux River reach. Recreational user data was collected from postage paid post cards left on vehicles and through personal interviews. Pressure data was collected during a roving survey from ground counts of vehicles, boat trailers, recreational users. Aerial counts were made to compare angling and recreational boating data with ground count data. Recreational users spent an estimated 745,303 hours on the Missouri River survey reach during 2000. Fishing accounted for an estimated 458,749 hours, or 62% of …

Guidelines For The Establishment Of A Fish Habitat Protection Area., Fisheries Western Australia

Fisheries management papers

These guidelines are designed to guide the Department of Fisheries staff and community groups (the proponent) on the process for developing a proposal for a Fish Habitat Protection Area (FHPA). The guidelines: 1. Describe the role and function of Fish Habitat Protection Areas; 2. Guide proponents in selecting a suitable site for an FHPA; 3. Describe the process to be used to develop a proposal for an FHPA; 4. Describe the methodology to be used to develop a management plan for an FHPA; 5. Ensure consistency between applications.

Recreational Fishing Management Strategy For The West Coast. Minister's Initial Responses To Final Report Of The West Coast Recreational Fishing Working Group (Fisheries Management Paper No. 153), Kim Chance

Fisheries management papers

To ensure recreational fishing in WA has a bright futre, a series of regional management stategies are being developed with have the following objectives: 1. Review the appropriateness of current controls, given the significant growth in recreational fishing. 2. Ensure that effective management is in place for the recreational fishing sector that contributes to the sustainability of WA's fish stocks. 3. Position recreational fishing so it can be incorporated into tan integrated management framework in which resource sharing issues can be addressed.