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2007

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Articles 91 - 120 of 679

Full-Text Articles in Animal Sciences

Industry Response To Beef Sector Policy And Regulation: Case Study Of Beef Sector In California, James Ahern, Robert Delmore, Andy Thulin Sep 2007

Industry Response To Beef Sector Policy And Regulation: Case Study Of Beef Sector In California, James Ahern, Robert Delmore, Andy Thulin

Animal Science

No Abstract.


Annual Report Of Lands Under Control Of The U.S. Fish & Wildlife Service As Of September 30, 2007, U. S. Fish And Wildlife Service Sep 2007

Annual Report Of Lands Under Control Of The U.S. Fish & Wildlife Service As Of September 30, 2007, U. S. Fish And Wildlife Service

United States Fish and Wildlife Service: Publications

Annual Report of Lands Under Control Of the U.S. Fish and Wildlife Service As of September 30, 2007

Message from the Director

Key to Real Property Numbers

Map of National Fish and Wildlife Management Areas

Map of Waterfowl Productions Areas

Significant Land Acquisition Accomplishments in Fiscal Year 2007

Tables
1 Summary by Categories
2 Summary by States, Associated Governments and Possessions
2A FY 2007 Summary by States, Associated Governments and Possessions
3 National Wildlife Refuges
4 Waterfowl Production Areas
5 Coordination Areas
6 Administrative Sites
7 National Fish Hatcheries
8 Wilderness Areas in National Wildlife Refuges and National Fish Hatcheries …


Thalamic Gating Of Auditory Responses In Telencephalic Song Control Nuclei, Melissa J. Coleman, Arani Roy, J. Martin Wild, Richard Mooney Sep 2007

Thalamic Gating Of Auditory Responses In Telencephalic Song Control Nuclei, Melissa J. Coleman, Arani Roy, J. Martin Wild, Richard Mooney

WM Keck Science Faculty Papers

In songbirds, nucleus Uvaeformis (Uva) is the sole thalamic input to the telencephalic nucleus HVC (used as a proper name), a sensorimotor structure essential to learned song production that also exhibits state dependent responses to auditory presentation of the bird’s own song (BOS). The role of Uva in influencing HVC auditory activity is unknown. Using in vivo extracellular and intracellular recordings in urethane-anesthetized zebra finches, we characterized the auditory properties of Uva and examined its influence on auditory activity in HVC and in the telencephalic nucleus interface (NIf), the main auditory afferent of HVC and a corecipient of Uva input. …


Technical Note: Calculation Of Standard Errors Of Estimates Of Genetic Parameters With The Multiple-Trait Derivative-Free Restricted Maximal Likelihood Programs, Stephen D. Kachman, L. Dale Van Vleck Sep 2007

Technical Note: Calculation Of Standard Errors Of Estimates Of Genetic Parameters With The Multiple-Trait Derivative-Free Restricted Maximal Likelihood Programs, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

The multiple-trait derivative-free REML set of programs was written to handle partially missing data for multiple-trait analyses as well as single- trait models. Standard errors of genetic parameters were reported for univariate models and for multiple-trait analyses only when all traits were measured on animals with records. In addition to estimating (co)variance components for multiple-trait models with partially missing data, this paper shows how the multiple-trait derivative-free REML set of programs can also estimate SE by augmenting the data file when not all animals have all traits measured. Although the standard practice has been to eliminate records with partially missing …


Computing Numerator Relationships Between Any Pair Of Animals, L. Dale Van Vleck Sep 2007

Computing Numerator Relationships Between Any Pair Of Animals, L. Dale Van Vleck

Roman L. Hruska U.S. Meat Animal Research Center: Reports

We describe a simple method to compute the numerator relationship between any or all pairs of animals in the numerator relationship matrix. The method depends on output of the MTDFNRM program from the MTDFREML set of programs. An option of the MTDFNRM program creates a file that includes the inbreeding coefficient for each animal. The method also makes use of how the inbreeding coefficient is traditionally calculated: one-half of the relationship between the animal’s parents. To obtain the numerator relationship between any pair of animals, the original pedigree file is augmented with a dummy animal with an identification number (ID) …


A Study Of The Mussels (Mollusca: Bivalvia: Unionidae) Of Symmes Creek And Tributaries In Jackson, Gallia And Lawrence Counties, Ohio, Michael A. Hoggarth, David A. Kimberly, Benjamin G. Van Allen Sep 2007

A Study Of The Mussels (Mollusca: Bivalvia: Unionidae) Of Symmes Creek And Tributaries In Jackson, Gallia And Lawrence Counties, Ohio, Michael A. Hoggarth, David A. Kimberly, Benjamin G. Van Allen

Biology and Earth Science Faculty Scholarship

Freshwater mussels (family Unionidae) are among the most threatened of Ohio's aquatic fauna. Interest in their biogeography has increased as their distribution and abundance has declined. This study was performed to assess the status of the mussels of Symmes Creek and it major tributaries in southern Ohio. Of the 24 species of mussels known to have inhabited this watershed, 16 were found alive in the system in 2004 and 2005 and two others were found as freshly dead shells. These species are thought to represent the extant mussel fauna in the system today. Of the remaining six species collected prior …


Animal Mind: Science, Philosophy, And Ethics, Bernard E. Rollin Sep 2007

Animal Mind: Science, Philosophy, And Ethics, Bernard E. Rollin

Sentience Collection

Although 20th-century empiricists were agnostic about animal mind and consciousness, this was not the case for their historical ancestors – John Locke, David Hume, Jeremy Bentham, John Stuart Mill, and, of course, Charles Darwin and George John Romanes. Given the dominance of the Darwinian paradigm of evolutionary continuity, one would not expect belief in animal mind to disappear. That it did demonstrates that standard accounts of how scientific hypotheses are overturned – i.e., by empirical disconfirmation or by exposure of logical flaws – is inadequate. In fact, it can be demonstrated that belief in animal mind disappeared as a result …


Animal Minds, Cognitive Ethology, And Ethics, Colin Allen, Marc Bekoff Sep 2007

Animal Minds, Cognitive Ethology, And Ethics, Colin Allen, Marc Bekoff

Sentience Collection

Our goal in this paper is to provide enough of an account of the origins of cognitive ethology and the controversy surrounding it to help ethicists to gauge for themselves how to balance skepticism and credulity about animal minds when communicating with scientists. We believe that ethicists’ arguments would benefit from better understanding of the historical roots of ongoing controversies. It is not appropriate to treat some widely reported results in animal cognition as if their interpretations are a matter of scientific consensus. It is especially important to understand why loose references to ‘‘cognitive ethology’’ by philosophers can signal ignorance …


Fisheries Research Report No. 163 - Spatial Scales Of Exploitation Among Populations Of Demersal Scalefish: Implications For Management. Part 1: Stock Status Of The Key Indicator Species For The Demersal Scalefish Fishery In The West Coast Bioregion., Department Of Fisheries, Western Australia Sep 2007

Fisheries Research Report No. 163 - Spatial Scales Of Exploitation Among Populations Of Demersal Scalefish: Implications For Management. Part 1: Stock Status Of The Key Indicator Species For The Demersal Scalefish Fishery In The West Coast Bioregion., Department Of Fisheries, Western Australia

Fisheries Research Reports

Final FRDC report - Project 2003/052

The levels of exploitation on dhufish and pink snapper across the West Coast Bioregion and for baldchin groper at the Abrolhos Islands are above international benchmark standards. This indicates that these stocks are currently being overfished and are therefore likely to be being depleted to levels below those necessary to ensure their long-term sustainability. The current reliance of the dhufish catch on a single recruitment pulse together with the extremely truncated age distribution of pink snapper indicates that both these stocks are particularly vulnerable.

The West Coast Demersal Scalefish Fishery is a multi-species fishery …


Managing The Recreational Catch Of Demersal Scalefish On The West Coast. Future Management Scenarios For Community Consideration, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne) Sep 2007

Managing The Recreational Catch Of Demersal Scalefish On The West Coast. Future Management Scenarios For Community Consideration, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)

Fisheries Management Papers

This paper discusses the major issues around controlling the total recreational catch. It also considers some of the tools available to manage the catch to specific target levels. The sustainability of fish species must be a key driver. However, the impacts on the social amenity of recreational fishing must also be taken into account. Any particular tool, if used on its own and to its full extent, may be rather “blunt” in its application and its impacts unacceptable to large parts of the community. The most effective and acceptable management package will probably be a mix of tools, supported by …


Lpe Center News, September 2007 Sep 2007

Lpe Center News, September 2007

Livestock and Poultry Environmental Learning Center: Newsletters

In this issue:

• Matching Treatment Systems with the Environmental Concern is October’s Webcast Topic

• Help Us Find the “Best of the Best”

• Have You Missed Out on Past Webcasts Because of Technical Difficulties?

• LPE Learning Center Opens Doors for Air Quality Education

• New Webcast Schedule Includes a Wide Variety of Topics


2006 (18th) Report Of The Nou Records Committee, Mark A. Brogie Sep 2007

2006 (18th) Report Of The Nou Records Committee, Mark A. Brogie

Nebraska Bird Review

The functions and methods of the Nebraska Ornithologists' Union (NOU) Records Committee are described in its bylaws (NOU Records Committee 1986). The committee's purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska. The "'Official List of the Birds of Nebraska" was first published in 1988 (NOU Records Committee 1988) and has been updated two times (NOU Records Committee 1997, 2004).

The "Official List" has been appended sixteen times: (Mollhoff 1989; Grenon 1990, 1991; Gubanyi 1996a, 1996b, 1996c; Brogie 1997, 1998, 1999, 2003, 2004, 2005, 2006; Jorgensen 2001, …


2006 (18th) Report Of The Nou Records Committee, Mark A. Brogie Sep 2007

2006 (18th) Report Of The Nou Records Committee, Mark A. Brogie

Nebraska Bird Review

The functions and methods of the Nebraska Ornithologists' Union (NOU) Records Committee are described in its bylaws (NOU Records Committee 1986). The committee's purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska. The "Official List of the Birds of Nebraska" was first published in 1988 (NOU Records Committee 1988) and has been updated two times (NOU Records Committee 1997, 2004).

The "Official List" has been appended sixteen times: (Mollhoff 1989; Grenon 1990, 1991; Gubanyi 1996a, 1996b, 1996c; Brogie 1997, 1998, 1999, 2003, 2004, 2005, 2006; Jorgensen 2001, …


Subscription And Organization Information [September 2007] Sep 2007

Subscription And Organization Information [September 2007]

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): $15 in the United States, $18 in Canada and $30 in all other countries, payable in advance. Single copies are $4 each, postpaid, in the United States, $5 in Canada, and $8 elsewhere. Send orders for back issues to Mary Lou Pritchard, NOU Librarian, c/o University of Nebraska State Museum, W-436 Nebraska Hall, Lincoln, NE 68588-0514.

Memberships in the NOU (on a calendar-year basis only): …


Summer Field Report, June-July 2007, W. Ross Silcock Sep 2007

Summer Field Report, June-July 2007, W. Ross Silcock

Nebraska Bird Review

This summer was a "something for everyone" season. Ecologists, already excited by the apparent ability of Greater Prairie-Chickens to lek in improbable habitats, such as corn fields and dirt edges of Rainwater Basin playas, will welcome the use by Lark Buntings and Vesper Sparrows of wheat stubble fields with a growing corn crop. The Vesper Sparrows of the east, a different subspecies from those in the north and west, have been at the mercy of full-tillage cropping systems, but now have a reprieve and may even be increasing because of no-till and minimum tillage methods currently in vogue due to …


Nebraska Bird Review (September 2007) 75(3), Whole Issue Sep 2007

Nebraska Bird Review (September 2007) 75(3), Whole Issue

Nebraska Bird Review

Summer Field Report, June-July 2007 by W. Ross Silcock ... 70

2006 (18th) Report of the NOU Records Committee compiled by Mark A. Brogie ... 86

Subscription and Organization Information ... 95


"Species Accounts," From Nebraska Bird Review (September 2007) 75(3)., Nebraska Ornithologists' Union Sep 2007

"Species Accounts," From Nebraska Bird Review (September 2007) 75(3)., Nebraska Ornithologists' Union

Nebraska Bird Review

Greater White-fronted Goose: Summer stragglers are rare, but one was in Clay Co 17 Jun (JGJ).

Snow Goose: About 25 stragglers or non-migrants were found; largest group was 20 at Harvard Marsh 2 Jun (PD), and westerly, where rare, was one at LM 10 Jun (SJD).

Ross's Goose: One at LM 9 Jun (SJD) was only the 3rd Jun record.

Canada Goose: Routine reports.

Trumpeter Swan: Routine reports.

Wood Duck: Routine reports.

Gadwall: Routine reports.

American Wigeon: A male at LM 9 Jun (SJD) was likely a late migrant; breeding is not known …


Fruit Quality And Consumption By Songbirds During Autumn Migration, Susan B. Smith, Kathleen H. Mcpherson, Jeffrey M. Backer, Barbara J. Pierce, David W. Podlesak, Scott R. Mcwilliams Sep 2007

Fruit Quality And Consumption By Songbirds During Autumn Migration, Susan B. Smith, Kathleen H. Mcpherson, Jeffrey M. Backer, Barbara J. Pierce, David W. Podlesak, Scott R. Mcwilliams

Biology Faculty Publications

Seasonal fruits are an important food resource for small songbirds during autumn migration in southern New England. Therefore, conservation and management of important stopover sites used by migrating birds requires knowledge about nutritional requirements of songbirds and nutritional composition of commonly consumed fruits. We measured nutrient composition and energy density of nine common fruits on Block Island, Rhode Island, and conducted a field experiment to estimate consumption rates of three of these fruits by birds during autumn migration. Most common fruits on Block Island contained primarily carbohydrates (41.3–91.2% dry weight), and little protein (2.6–8.6%) and fat (0.9–3.7%), although three contained …


Eleutherodactylus Ridens (Pygmy Rainfrog) Predation, Tobias Eisenberg, Twan Leenders Sep 2007

Eleutherodactylus Ridens (Pygmy Rainfrog) Predation, Tobias Eisenberg, Twan Leenders

Biology Faculty Publications

Workers of the large ponerine ant Paraponera clavata typically forage on small to medium-sized arthropods or collect pieces of plants or nectar but have been suspected of predating small vertebrates.


Nociception In Fish: Stimulus–Response Properties Of Receptors On The Head Of Trout Oncorhynchus Mykiss, Paul J. Ashley, Lynne U. Sneddon, Catherine R. Mccrohan Aug 2007

Nociception In Fish: Stimulus–Response Properties Of Receptors On The Head Of Trout Oncorhynchus Mykiss, Paul J. Ashley, Lynne U. Sneddon, Catherine R. Mccrohan

Veterinary Science and Medicine Collection

This study examined stimulus–response properties of somatosensory receptors on the head of rainbow trout, Oncorhynchus mykiss, using extracellular recording from single cells in the trigeminal ganglion. Of 121 receptors recorded from 39 fish, 17 were polymodal nociceptors, 22 were mechanothermal nociceptors, 18 were mechanochemical receptors, 33 were fast adapting mechanical receptors and 31 were slowly adapting mechanical receptors. Mechanical thresholds were higher in polymodal nociceptors than in either slowly adapting or fast adapting mechanical receptors, whereas thermal thresholds of mechanothermal nociceptors were higher than those of polymodal nociceptors. Polymodal nociceptors and mechanochemical receptors gave similar responses to topical applications of …


Subcutaneous Fsh Implants, Colette Floyd Aug 2007

Subcutaneous Fsh Implants, Colette Floyd

All Theses

Superovulation is an assisted reproductive technique used to hyperstimulate the ovaries in an attempt to proliferate desirable genetics by increasing the number of dominant follicles and oocytes available per estrous cycle. Unfortunately, the process is inefficient and costly due to FSH injection protocols, labor requirements, and animal stress. A sustained release implant as a novel FSH delivery mechanism could increase the efficiency and utility while reducing cost and animal stress. The objectives of these experiments were: to design and fabricate a sustained FSH release implant and evaluate the amount of FSH released in-vitro and in-vivo.
Polyethylene glycol diacrylate (PEGDA) was …


Examination Of The Allee Effect On Postlarval Recruitment And Post Settlement Survival In The Caribbean Spiny Lobster Panulirus Argus, Adrianna Zito Aug 2007

Examination Of The Allee Effect On Postlarval Recruitment And Post Settlement Survival In The Caribbean Spiny Lobster Panulirus Argus, Adrianna Zito

All Theses

Positive density dependence (the Allee effect) has been reported in a number of species that are attracted to conspecific cues. This effect has been shown to influence the settlement of many species of marine invertebrates. Caribbean spiny lobsters are gregarious den dwellers attracted to conspecific cues. Previous studies have suggested that the benefit of conspecific attraction is a reduced predation risk by decreasing the time to find crevice shelters (the guide effect) or by cooperative group defense once sharing shelters. I tested a third hypothesis that attraction to conspecific cues increases the settlement of lobster postlarvae into the highest quality …


Thrombocyte Response To Lipopolysaccharide In Stress Induced Broiler Chicks, Farzana Ferdous Aug 2007

Thrombocyte Response To Lipopolysaccharide In Stress Induced Broiler Chicks, Farzana Ferdous

All Theses

The role of thrombocytes, nucleated blood leukocytes, on immune responses in chickens fed diets supplemented with vitamin C has not been studied in the past. This study investigates the effects of three types of diets(control, control with corticosterone, and control with corticosterone and vitamin C) in 14-day old broiler chicks on the expression of pro-inflammatory cytokines IL-1beta, IL-6, and IL-12 in thrombocytes. In addition, the effect of LPS, a microbial component to which broiler chicks can be exposed, on the expression of these pro-inflammatory cytokines was investigated. After two weeks of feeding, blood samples from the chicks were collected and …


Feeding Performance In Hawaiian Stream Goby Fishes: Morphological And Functional Analysis, Takashi Maie Aug 2007

Feeding Performance In Hawaiian Stream Goby Fishes: Morphological And Functional Analysis, Takashi Maie

All Theses

Distributions of Hawaiian stream fishes are typically interrupted by waterfalls that divide streams into lower and upper segments. Larvae hatched upstream are flushed into the ocean, and must climb these waterfalls to reach adult habitats when returning back to freshwater as part of an amphidromous life cycle. Stream surveys and studies of climbing performance show that Lentipes concolor can reach fast-flowing upper stream segments, but that Awaous guamensis reaches only slower, lower stream segments. Gut content analyses for these two species indicate that diet differs between them only by 10% or less dry weight for most major components (mostly green …


Interview With Melissa & Rod Volbeda, Willamette Valley Cheese, 2007 (Audio), Melissa Volbeda, Rod Volbeda Aug 2007

Interview With Melissa & Rod Volbeda, Willamette Valley Cheese, 2007 (Audio), Melissa Volbeda, Rod Volbeda

All Sustainability History Project Oral Histories

Interview of Melissa and Rod Volbeda by Magda Gaytan on August 6th, 2007.

Willamette Valley Cheese Company tour photos available for download.


Effect Of Varying Concentrations Of Dietary Crude Protein And Metabolizable Energy On Laying Performance Of Pearl Grey Guinea Fowl Hens, Samuel N. Nahashon, Nathaniel Adefope, Abravi Amenyenu, D. Wright Aug 2007

Effect Of Varying Concentrations Of Dietary Crude Protein And Metabolizable Energy On Laying Performance Of Pearl Grey Guinea Fowl Hens, Samuel N. Nahashon, Nathaniel Adefope, Abravi Amenyenu, D. Wright

Agricultural and Environmental Sciences Faculty Research

This study was conducted to evaluate optimum dietary concentrations of ME and CP for egg production performance of the Pearl Gray guinea fowl laying hens. In a 2 × 3 factorial arrangement, 360 Pearl Gray guinea fowl replacement pullets (22 wk of age) were randomly assigned to experimental diets with 2,800 and 2,900 kcal of ME/kg of diet, each containing 14, 16, and 18% CP, respectively. Each dietary treatment was replicated 4 times, and feed and water were provided ad libitum. Experimental birds were raised in laying cages and received 16 h of light throughout the study period. The birds …


Kentucky Warbler (Vol. 83, No. 3), Kentucky Library Research Collections Aug 2007

Kentucky Warbler (Vol. 83, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


The Influence Of Early Experience On, And Inheritance Of, Cerebral Lateralization, Culum Brown, Jac Western, Victoria A. Braithwaite Aug 2007

The Influence Of Early Experience On, And Inheritance Of, Cerebral Lateralization, Culum Brown, Jac Western, Victoria A. Braithwaite

Veterinary Science and Medicine Collection

Cerebral lateralization refers to the lateralized partitioning of cognitive function in either hemisphere of the brain. Using a standard detour test, we investigated lateralized behaviour in wild-caught, female poeciliid fish, Brachyraphis (=Brachyrhaphis) episcopi, from high- and low-predation areas. Wild fish were bred and their offspring reared under controlled laboratory conditions. These laboratory-reared fish were screened in the same laterality assays as their parents. We observed differences between wild-caught females and their laboratory-reared female offspring in the pattern of lateralization (tendency to use one hemisphere over the other to process information). Conversely, the strength of lateralization (consistency of hemispherical bias) was …


A Comparison Of Pregnant Mare Serum Gonadotropin And P.G. 600® To Improve Reproductive Efficiency In Sows, Evan Tate Aug 2007

A Comparison Of Pregnant Mare Serum Gonadotropin And P.G. 600® To Improve Reproductive Efficiency In Sows, Evan Tate

Masters Theses & Specialist Projects

Three hundred and nineteen sows were utilized to study the effects of pregnant mare serum and P.G 600 on reproductive efficiency. Sows were randomly allotted to treatments. Sows were evaluated for age (# of parities), breed composition and body condition score. Three sows who shared all three fields in common were randomly treated with one of three treatments the morning after weaning: 1. (S) Controls: 5ml of Sterile Saline Solution 0.9% 2. (M) Treatment (PMSG): 12ml of Pregnant Mare Serum 3. (P) Treatment (PG600)® 5ml of P.G. 600 (Intervet America Inc., Millsboro, DE) No differences were observed for total number …


Landscape Ecology Of Crayfish (Decapoda: Cambaridae) In West-Central Indiana, Jacob L. Burskey Aug 2007

Landscape Ecology Of Crayfish (Decapoda: Cambaridae) In West-Central Indiana, Jacob L. Burskey

All-Inclusive List of Electronic Theses and Dissertations

I investigated the distribution, zoogeography, and habitat associations of crayfish (Decapoda: Cambaridae) in an area of west central Indiana containing glaciated and unglaciated regions. I first sampled 180 streams within Vigo, Clay, Owen, Sullivan, Greene, and Knox counties to establish spatial distributions of crayfish species and gather information on natural history and site specific habitat conditions. Ten species were found; Cambarus (Tubericambarus) polychromatus, Cambarus (Lacunicambarus) sp.A, Cambarus (Erebicambarus) laevis, Fallicambarus (Creaserinus)fodiens, Procambarus (Girardiella) gracilis, Procambarus (Ortmannicus) acutus, Orconectes (Triscellescens) immunis, Orconectes ( Gremicambarus) virilis, Orconectes ( Crockerinus) propinquus, - Orconectes (Faxinous) indianensis. The two rarest species were 0. indianensis (collected …