Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 7081 - 7110 of 9753

Full-Text Articles in Entire DC Network

The Impact Of Price And Yield Variability On Southeastern U.S. Catfish Producer Operations (Bulletin #876), Richard F. Kazmierczak Jr., Patricia Soto Sep 2000

The Impact Of Price And Yield Variability On Southeastern U.S. Catfish Producer Operations (Bulletin #876), Richard F. Kazmierczak Jr., Patricia Soto

LSU AgCenter Bulletins

This study empirically assessed the impact of stochastic price and yield variables on catfish producer profits within a risk-evaluation framework.


Louisiana Agriculture Summer, 2000, Lsu Agcenter Jul 2000

Louisiana Agriculture Summer, 2000, Lsu Agcenter

Louisiana Agriculture

No abstract provided.


Polyclonal Antibodies Raised In Chickens Against Four Canine Pathogens, Amanda Kaye Brown May 2000

Polyclonal Antibodies Raised In Chickens Against Four Canine Pathogens, Amanda Kaye Brown

Honors Capstones

No abstract provided.


A Study On The Effects Of Microwave Radiation On Hatching Eggs Contaminated With Feces, Joseph E. Orgeron May 2000

A Study On The Effects Of Microwave Radiation On Hatching Eggs Contaminated With Feces, Joseph E. Orgeron

Honors Capstones

No abstract provided.


Louisiana Agriculture Spring, 2000, Lsu Agcenter Apr 2000

Louisiana Agriculture Spring, 2000, Lsu Agcenter

Louisiana Agriculture

No abstract provided.


Aflatoxin Production In Corn By Aspergillus Flavus Relative To Inoculation, Planting Date, And Harvest Moisture In Louisiana (Research Report #102), K. M. Tubajika, H. J. Mascagni Jr., K. E. Damann, J. S. Russin Mar 2000

Aflatoxin Production In Corn By Aspergillus Flavus Relative To Inoculation, Planting Date, And Harvest Moisture In Louisiana (Research Report #102), K. M. Tubajika, H. J. Mascagni Jr., K. E. Damann, J. S. Russin

LSU AgCenter Research Reports

Contamination of food and feed grains by aflatoxins is a problem throughout the world. Corn produced in the southeastern United States has higher levels of aflatoxin than corn produced in the Corn Belt of the Midwest.


Pilgrimage To Springfield: A British Writer's Look At Lincoln And Modern America, Ian Crowe Mar 2000

Pilgrimage To Springfield: A British Writer's Look At Lincoln And Modern America, Ian Crowe

Civil War Book Review

In war: resolution. In defeat: defiance. In victory: magnanimity. In peace: goodwill." If Jan Morris has captured her subject with any degree of accuracy, those words by Sir Winston Churchill might aptly have draped Lincoln's funeral train as it snaked its way to Springfield, Illinois. Lincoln is th....


Partial Sequence Of The Cdna For The ?-Subunit Of The Inhibin Hormone In Japanese Quail, Tristan Timothy Sands Jan 2000

Partial Sequence Of The Cdna For The ?-Subunit Of The Inhibin Hormone In Japanese Quail, Tristan Timothy Sands

Honors Capstones

No abstract provided.


Functional Microanatomy Of The Feather-Bearing Integument: Implications For The Evolution Of Birds And Avian Flight, Dominique G. Homberger, Kumudini N.D.E. Silva Jan 2000

Functional Microanatomy Of The Feather-Bearing Integument: Implications For The Evolution Of Birds And Avian Flight, Dominique G. Homberger, Kumudini N.D.E. Silva

Faculty Publications

A selective regime favoring a streamlining of body contours and surfaces is proposed as having been instrumental in driving the morphological and functional transformations of an unfeathered reptilian integument into a featherbearing avian one. This hypothesis is consistent with a new, structurally and functionally coherent analysis of the microanatomy of the avian feather-bearing integument as a complex, integrated organ system that includes an intricate, hydraulic skeleto-muscular apparatus of the feathers, a dermo-subcutaneous muscle system of the integument, and a subcutaneous hydraulic skeletal system formed by fat bodies. Key elements of the evidence supporting the new hypothesis are (1) the presence …


Global Change And Biodiversity Linkages Across The Sediment-Water Interface, C. R. Smith, M. C. Austen, G. Boucher, C. Heip, P. A. Hutchings, G. M. King, I. Koike, P. J.D. Lambshead, P. Snelgrove Jan 2000

Global Change And Biodiversity Linkages Across The Sediment-Water Interface, C. R. Smith, M. C. Austen, G. Boucher, C. Heip, P. A. Hutchings, G. M. King, I. Koike, P. J.D. Lambshead, P. Snelgrove

Faculty Publications

No abstract provided.


Linking Biodiversity Above And Below The Marine Sediment-Water Interface, P. V.R. Snelgrove, M. C. Austen, G. Boucher, C. Heip, P. A. Hutchings, G. M. King, I. Koike, P. J.D. Lambshead, C. R. Smith Jan 2000

Linking Biodiversity Above And Below The Marine Sediment-Water Interface, P. V.R. Snelgrove, M. C. Austen, G. Boucher, C. Heip, P. A. Hutchings, G. M. King, I. Koike, P. J.D. Lambshead, C. R. Smith

Faculty Publications

No abstract provided.


Cd8+ Cytotoxic T Lymphocyte Responses To Lytic Proteins Of Human Herpes Virus 8 In Human Immunodeficiency Virus Type 1-Infected And -Uninfected Individuals, Qiong J. Wang, Frank J. Jenkins, Lisa P. Jacobson, Yuan Xiang Meng, Philip E. Pellett, Lawrence A. Kingsley, Konstantin G. Kousoulas, Abolghasem Baghian, Charles R. Rinaldo Jan 2000

Cd8+ Cytotoxic T Lymphocyte Responses To Lytic Proteins Of Human Herpes Virus 8 In Human Immunodeficiency Virus Type 1-Infected And -Uninfected Individuals, Qiong J. Wang, Frank J. Jenkins, Lisa P. Jacobson, Yuan Xiang Meng, Philip E. Pellett, Lawrence A. Kingsley, Konstantin G. Kousoulas, Abolghasem Baghian, Charles R. Rinaldo

Faculty Publications

T cell immunity to lytic proteins of herpesviruses is important in host control of infection. We have characterized the cytotoxic T lymphocyte (CTL) response to 5 human herpesvirus 8 (HHV-8) homologues of lytic proteins in HHV-8-seropositive individuals. HLA class I-restricted, CD8+ CTL responses to ≥1 HHV-8 lytic protein were detected in all 14 HHV-8-seropositive study subjects tested, with or without human immunodeficiency virus type 1 (HIV-1) infection, but not in any of 5 HHV-8-seronegative individuals. Seven of these study subjects with both HHV-8 and HIV-1 infection had greater anti-CTL reactivity to glycoprotein H (open-reading frame 22) than did the 7 …


Safety Of Brucella Abortus Strain Rb51 In Bull Elk, Walter E. Cook, Elizabeth S. Williams, E. Tom Thorne, Terry J. Kreeger, Glenn W. Stout, Gerhardt Schurig, Lesley A. Colby, Fred Enright, Philip H. Elzer Jan 2000

Safety Of Brucella Abortus Strain Rb51 In Bull Elk, Walter E. Cook, Elizabeth S. Williams, E. Tom Thorne, Terry J. Kreeger, Glenn W. Stout, Gerhardt Schurig, Lesley A. Colby, Fred Enright, Philip H. Elzer

Faculty Publications

Some of the elk (Cervus elaphus nelsoni) of the Greater Yellowstone Area (Wyoming, Idaho, Montana; USA) are infected with Brucella abortus, the bacterium that causes bovine brucellosis. Brucella abortus strain RB51 vaccine is being considered as a means to control B. abortus induced abortions in cow elk. However, the most probable vaccination strategies for use in free-ranging elk might also result in some bull elk being inoculated, thus, it is important to insure that the vaccine is safe in these animals. In the winter of 1995, 10 free-ranging bull elk calves were captured, tested for B. abortus antibodies, and intramuscularly …


Coronavirus And Pasteurella Infections In Bovine Shipping Fever Pneumonia And Evans' Criteria For Causation, J. Storz, X. Lin, C. W. Purdy, V. N. Chouljenko, K. G. Kousoulas, F. M. Enright, W. C. Gilmore, R. E. Briggs, R. W. Loan Jan 2000

Coronavirus And Pasteurella Infections In Bovine Shipping Fever Pneumonia And Evans' Criteria For Causation, J. Storz, X. Lin, C. W. Purdy, V. N. Chouljenko, K. G. Kousoulas, F. M. Enright, W. C. Gilmore, R. E. Briggs, R. W. Loan

Faculty Publications

Respiratory tract infections with viruses and Pasteurella spp. were determined sequentially among 26 cattle that died during two severe epizootics of shipping fever pneumonia. Nasal swab and serum samples were collected prior to onset of the epizootics, during disease progression, and after death, when necropsies were performed and lung samples were collected. Eighteen normal control cattle also were sampled at the beginning of the epizootics as well as at weekly intervals for 4 weeks. Respiratory bovine coronaviruses (RBCV) were isolated from nasal secretions of 21 and 25 cattle before and after transport. Two and 17 cattle nasally shed Pasteurella spp. …


Safety Of Brucella Abortus Strain Rb51 In Bull Elk, Walter E. Cook, Elizabeth S. Williams, E. Tom Thorne, Terry J. Kreeger, Glenn W. Stout, Gerhardt Schurig, Lesley A. Colby, Fred Enright, Philip H. Elzer Jan 2000

Safety Of Brucella Abortus Strain Rb51 In Bull Elk, Walter E. Cook, Elizabeth S. Williams, E. Tom Thorne, Terry J. Kreeger, Glenn W. Stout, Gerhardt Schurig, Lesley A. Colby, Fred Enright, Philip H. Elzer

Faculty Publications

Some of the elk (Cervus elaphus nelsoni) of the Greater Yellowstone Area (Wyoming, Idaho, Montana; USA) are infected with Brucella abortus, the bacterium that causes bovine brucellosis. Brucella abortus strain RB51 vaccine is being considered as a means to control B. abortus induced abortions in cow elk. However, the most probable vaccination strategies for use in free-ranging elk might also result in some bull elk being inoculated, thus, it is important to insure that the vaccine is safe in these animals. In the winter of 1995, 10 free-ranging bull elk calves were captured, tested for B. abortus antibodies, and intramuscularly …


Safety And Efficacy Of Brucella Abortus Strain Rb51 Vaccine In Captive Pregnant Elk, Terry J. Kreeger, Michael W. Miller, Margaret A. Wild, Philip H. Elzer, Steven C. Olsen Jan 2000

Safety And Efficacy Of Brucella Abortus Strain Rb51 Vaccine In Captive Pregnant Elk, Terry J. Kreeger, Michael W. Miller, Margaret A. Wild, Philip H. Elzer, Steven C. Olsen

Faculty Publications

Brucella abortus strain RB51 is a laboratory-derived rough mutant of virulent B. abortus strain 2308 used as a vaccine because it induces antibodies that do not react on standard brucellosis serologic tests. Strain RB51 vaccine was evaluated in pregnant captive elk (Cervus elaphus) to determine (1) if it induced abortion and (2) if it protected against abortion following subsequent challenge. The time period of this study (February-June, 1998) was similar to field conditions where elk are vaccinated and possibly exposed to B. abortus. Fourteen elk were randomly and equally divided into vaccinated and control groups. The vaccinated group was vaccinated …


Influence Of Mechanical Processing On Utilization Of Corn Silage By Lactating Dairy Cows, T. R. Dhiman, M. A. Bal, Z. Wu, V. R. Moreira, R. D. Shaver, L. D. Satter, K. J. Shinners, R. P. Walgenbach Jan 2000

Influence Of Mechanical Processing On Utilization Of Corn Silage By Lactating Dairy Cows, T. R. Dhiman, M. A. Bal, Z. Wu, V. R. Moreira, R. D. Shaver, L. D. Satter, K. J. Shinners, R. P. Walgenbach

Faculty Publications

We conducted three experiments to determine the influence of mechanical processing on corn silage utilization by lactating dairy cows. Total mixed rations contained either unprocessed or processed corn silage harvested between 1/4 and 3/4 milk line. In trial 1, 12 multiparous Holstein cows were used in a replicated double switchback design with 21-d periods. Intake of dry matter (DM) was increased 1.2 kg/d by processing, but milk yield was unaffected. Processing did not affect apparent total-tract DM digestibility, but processing tended to lower starch and corn excretion in feces and reduced concentration of sieved corn kernel particles in feces. In …


Differentiation Of Gastrointestinal Diseases Of Calves, C. B. Navarre, E. B. Belknap, S. E. Rowe Jan 2000

Differentiation Of Gastrointestinal Diseases Of Calves, C. B. Navarre, E. B. Belknap, S. E. Rowe

Faculty Publications

With a complete history, careful physical examination, and targeted diagnostics, the practitioner can differentiate the causes of gastrointestinal diseases in calves. The authors hope that this article helps the practitioner in this regard. Armed with a diagnosis, he or she can then proceed with proper treatment and prevention, which is the ultimate goal.


Differentiation Of Gastrointestinal Diseases In Adult Cattle., E. B. Belknap, C. B. Navarre Jan 2000

Differentiation Of Gastrointestinal Diseases In Adult Cattle., E. B. Belknap, C. B. Navarre

Faculty Publications

Many of the common gastrointestinal disorders of adult cattle may be diagnosed by a careful physical examination, whereas other disturbances require the use of diagnostic testing. It is important to differentiate the causes of gastrointestinal disturbances to make better treatment decisions and have a clearer prognosis for the specific animal or herd of cattle.


Differentiation Of Gastrointestinal Diseases In Adult Cattle., E. B. Belknap, C. B. Navarre Jan 2000

Differentiation Of Gastrointestinal Diseases In Adult Cattle., E. B. Belknap, C. B. Navarre

Faculty Publications

Many of the common gastrointestinal disorders of adult cattle may be diagnosed by a careful physical examination, whereas other disturbances require the use of diagnostic testing. It is important to differentiate the causes of gastrointestinal disturbances to make better treatment decisions and have a clearer prognosis for the specific animal or herd of cattle.


Differentiation Of Gastrointestinal Diseases Of Calves, C. B. Navarre, E. B. Belknap, S. E. Rowe Jan 2000

Differentiation Of Gastrointestinal Diseases Of Calves, C. B. Navarre, E. B. Belknap, S. E. Rowe

Faculty Publications

With a complete history, careful physical examination, and targeted diagnostics, the practitioner can differentiate the causes of gastrointestinal diseases in calves. The authors hope that this article helps the practitioner in this regard. Armed with a diagnosis, he or she can then proceed with proper treatment and prevention, which is the ultimate goal.


Validation Of The Fluorescence Polarization Assay And Comparison To Other Serological Assays For The Detection Of Serum Antibodies To Brucella Abortus In Bison, D. Gall, K. Nielsen, L. Forbes, D. Davis, P. Elzer, S. Olsen, S. Balsevicius, L. Kelly, P. Smith, S. Tan, D. Joly Jan 2000

Validation Of The Fluorescence Polarization Assay And Comparison To Other Serological Assays For The Detection Of Serum Antibodies To Brucella Abortus In Bison, D. Gall, K. Nielsen, L. Forbes, D. Davis, P. Elzer, S. Olsen, S. Balsevicius, L. Kelly, P. Smith, S. Tan, D. Joly

Faculty Publications

A number of serological tests were compared for the detection of antibodies to Brucella abortus in bison (Bison bison). The performance of the fluorescence polarization assay (FPA) in both the preliminary evaluation and a subsequent blind validation indicated that this test was the most suitable for serological diagnosis of brucellosis in bison. The sensitivity and specificity in the preliminary evaluation were 92.1% and 99.4%, respectively. The sensitivity and specificity in a subsequent blind study were 96.3% and 97.6%, respectively. In a double blind study conducted on bison vaccinated with B. abortus strain 19, the data suggests that the FPA can …


A Multiplex Approach To Molecular Detection Of Brucella Abortus And/Or Mycobacterium Boris Infection In Cattle, Srinand Sreevatsan, Jack B. Bookout, Fidel Ringpis, Veera S. Perumaalla, Thomas A. Ficht, L. Garry Adams, Sue D. Hagius, Philip H. Elzer, Betsy J. Bricker, Girish K. Kumar, M. Rajasekhar, Srikrishna Isloor, Raj R. Barathur Jan 2000

A Multiplex Approach To Molecular Detection Of Brucella Abortus And/Or Mycobacterium Boris Infection In Cattle, Srinand Sreevatsan, Jack B. Bookout, Fidel Ringpis, Veera S. Perumaalla, Thomas A. Ficht, L. Garry Adams, Sue D. Hagius, Philip H. Elzer, Betsy J. Bricker, Girish K. Kumar, M. Rajasekhar, Srikrishna Isloor, Raj R. Barathur

Faculty Publications

A multiplex amplification and detection platform for the diagnosis of Mycobacterium bovis and Brucella abortus infection simultaneously in bovine milk and nasal secretions was developed. This system (designated the bovine pathogen detection assay [BPDA]-PCR) consists of duplex amplification of species-specific targets (a region of the BCSP31K gene of B. abortus and a repeat-sequence region in the hsp65 gene of M. bovis, respectively). This is followed by a solid-phase probe capture hybridization of amplicons for detection. On the basis of spiking experiments with normal milk, the analytical sensitivity of the assay was 800 CFU equivalents/ml of milk for B. abortus and …


Isolation And Characterization Of Newly Emerging Coronaviruses In Acute Respiratory Tract Diseases Of Cattle., Xiaoqing Lin Jan 2000

Isolation And Characterization Of Newly Emerging Coronaviruses In Acute Respiratory Tract Diseases Of Cattle., Xiaoqing Lin

LSU Historical Dissertations and Theses

A total of 411 G clone cell-dependent virus strains recently were isolated from nasal, trachea and lung samples in etiological investigations of acute respiratory tract diseases of vaccinated cattle, including shipping fever pneumonia. The virus infectivity titers reached up to 1.2 x 10 7 plaque forming units per gram of lung tissues of fatal cases. These viral agents were isolated in the 1st G clone cell passage without trypsin enhancement, and induced cell fusion. They have a restricted hemagglutination pattern, agglutinating only rat and mouse erythrocytes. Majority of them has receptor-destroying enzyme activities. They are round and enveloped with a …


Dietary Betaine For Swine And Poultry., John O'Neal Matthews Jan 2000

Dietary Betaine For Swine And Poultry., John O'Neal Matthews

LSU Historical Dissertations and Theses

The purpose of this research was to determine the effects of dietary betaine in swine and poultry under conditions that may benefit the swine and poultry industries. In finishing pigs, one experiment was conducted to determine the effect of dietary betaine level on growth, carcass traits, and pork quality. Another experiment evaluated the interactive effects of betaine, pen spacing, and slaughter handling method. In weanling pigs, five experiments were conducted to determine the interactive effects of betaine and Zn, or to determine if betaine can replace a portion of the methionine requirement. In poultry, two experiments were conducted to determine …


Rights Of Passage: A Cross -Cultural Study Of Maroon Novels By Black Women., Randi Gray Kristensen Jan 2000

Rights Of Passage: A Cross -Cultural Study Of Maroon Novels By Black Women., Randi Gray Kristensen

LSU Historical Dissertations and Theses

This study investigates the use and implications of the trope of marronage, the African-American practice of self-emancipation to forge alternative New World communities, in selected novels by Black women writers of North America and the Anglophone and Francophone Caribbean. It draws on theories of liminality to posit a theory of liberatory practice that deconstructs hegemonic narratives, both personal and historical. Postmodern approaches are deferred in favor of locating these texts and their concerns as deriving from the epistemological consequences of modernity. Cross-cultural Black women's texts were chosen to illuminate the recognition of shared subjugations across national and linguistic borders, as …


Effects Of Dietary L -Carnitine On Female Retired Breeder Rats Fed High Protein And High Fat., Erika Maria Zablah-Bendeck Jan 2000

Effects Of Dietary L -Carnitine On Female Retired Breeder Rats Fed High Protein And High Fat., Erika Maria Zablah-Bendeck

LSU Historical Dissertations and Theses

Carnitine supplementation has been shown to protect animals from ammonia toxicity following an ammonium acetate infusion and to alter body composition (i.e. increase lean mass and decrease body fat) in younger animals. The aims of this study were to address the questions of whether: (1) carnitine lowers blood ammonia levels of rats fed high protein; (2) carnitine decreases the weight gain and body fat of older animals fed high fat; (3) carnitine decreases glucose-induced insulin secretion; and (4) consumption of a high fat diet increases total serum carnitine content. Sprague Dawley retired female breeder rats (n = 64) were stratified …


Effects Of Dietary Phytase Supplementation On Growth, Nutrient Utilization, And Phytate Degradation In Channel Catfish, Ictalurus Punctatus., Weibing Yan Jan 2000

Effects Of Dietary Phytase Supplementation On Growth, Nutrient Utilization, And Phytate Degradation In Channel Catfish, Ictalurus Punctatus., Weibing Yan

LSU Historical Dissertations and Theses

Phytase supplementation increases the availability of phosphorus in fish diets, and dietary protein utilization might be increased as well by lower phytate concentrations in phytase supplemented diets. Experiments were conducted to determine if weight gain; protein utilization; mineral retention; apparent dry matter, protein and mineral digestibility; and phytate degradation in the stomach of channel catfish fed an all-plant-protein diet could be improved by phytase supplementation. Seven diets were tested: a nutrient complete diet (TC) containing 5% fish meal and six all-plant-protein diets (T1--T6) that contained minimal levels of available phosphorus (0.16%; total P = 0.57%) and zinc (53.37 ppm), but …


Evaluation Of Heterologous Promoter Function In The Eastern Oyster (Crassostrea Virginica)., Ta Philip Chih Cheng Jan 2000

Evaluation Of Heterologous Promoter Function In The Eastern Oyster (Crassostrea Virginica)., Ta Philip Chih Cheng

LSU Historical Dissertations and Theses

The goal of this work was to evaluate the feasibility of using antimicrobial peptide gene transfer to enhance oyster immunity. The specific objectives were to: (1) compare the efficiency of collagenase, pronase, and trypsin to dissociate atrium, ventricle and mantle into individual cells for the initiation of primary cell culture; (2) develop cryopreservation conditions to preserve the dissociated cells; (3) establish a serum-free transfection system; (4) evaluate inducible promoter function using the established serum-free transfection system; (5) evaluate the effects of the transfer of antimicrobial peptide genes on oyster immunity. Pronase was found to be the most effective enzyme for …


Effects Of Cobalt-60 Gamma Irradiation On The Malaysian Prawn Macrobrachium Rosenbergii., Nyanti Lee Jan 2000

Effects Of Cobalt-60 Gamma Irradiation On The Malaysian Prawn Macrobrachium Rosenbergii., Nyanti Lee

LSU Historical Dissertations and Theses

A major obstacle in culture of the Malaysian prawn, Macrobrachium rosenbergii, is the complex social structure whereby a few large males dominate the population and reduce production. The goal of this work was to induce reproductive sterility by use of gamma radiation as a means to increase production. Of the 62 publications related to the use of gamma radiation in aquatic species published between 1938 and 1996, 66% did not indicate performance of dosimetry (dosage verification). Samples were not rotated during irradiation in 98% of these studies, which introduces considerable variation in dose. A dosimetric study in this dissertation found …