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Louisiana Agriculture Magazine, Fall 1988, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Louisiana Agriculture Magazine, Summer 1988, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

The Systematics Of Nerodia Clarkii And Nerodia Fasciata, Patrick Allan Myer

LSU Historical Dissertations and Theses

The systematic relationship between the Gulf saltmarsh snake, Nerodia fasciata clarkii. and the freshwater subspecies, N. f. confluens. N. f. fasciata, and N. f. pictiventris, is re—evaluated using morphological characters that reflect head shape. Changes in character-states are analyzed from areas of contact into the populations of the freshwater forms. Beyond the narrow zones where intermediates are found there is no morphological evidence suggesting genetic introgression of clarkii genes into the freshwater populations. Discriminant analysis of the head scale measurements also suggests the significant division of the saltmarsh and freshwater forms. Ecological analysis reveals that interbreeding between the forms is …

Louisiana Agriculture Magazine, Spring 1988, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Marsh Management Plans In Practice: Do They Work In Coastal Louisiana, Usa?, James H. Cowan Jr., R. Eugene Turner, Donald R. Cahoon

Faculty Publications

Louisiana's coastal wetlands represent about 41% of the nation's total and are extensively managed for fish, fur, and waterfowl. Marsh management plans (MMPs) are currently used to avoid potential user conflicts and are believed to be a best management practice for specific management goals. In this article, we define MMPs and examine their variety, history, impacts, and future.

A MMP is an organized written plan submitted to state and federal permitting agencies for approval and whose purpose is to regulate wetland habitat quantity and quality (control land loss and enhance productivity). MMPs are usually implemented by making structural modifications in …

A Behavioral Test Of The Affinity-Seeking Model: Nonverbal Tactics Among Strangers And Acquaintances., Dominique Marie Gendrin

LSU Historical Dissertations and Theses

This research examined the Affinity-Seeking model devised by Bell and Daly (1984). Two components of the model were considered: preinteraction expectancies constraining a social encounter and the competency of the individual as an affinity-seeker. It was hypothesized that strangers would approach a friendly target through the reciprocity strategy and an unfriendly target through the compensatory strategy by increasing behavioral cues of immediacy (e.g., eye-gaze, smiling/laughter, verbalizations, and proximity). It was hypothesized, on the other hand, that acquaintances would not increase their behavioral involvement in view of a friendly expectancy while they would compensate for an unfriendly one. The findings revealed …

Characterization And Application Of Monoclonal Antibody And Bovine Neutrophil Reactivity To Pasteurella Haemolytica Antigens., Frank William Austin

LSU Historical Dissertations and Theses

Monoclonal antibodies (McAbs) were prepared against Pasteurella haemolytica serotype 1 (Ph-1) capsular material to identify, quantitate and purify antigens. McAbs were selected by ELISA and characterized according to their isotype, cross-reactivity with P. haemolytica and P. multocida serotypes in ELISA, antigen formalin sensitivity and ability to cause bacterial agglutination. Four groups of McAbs were established each recognizing a different epitope. Various P. haemolytica and P. multocida serotypes were found to share several epitopes demonstrating their antigenic relatedness. A colorimetric assay, based on tetrazolium dye reduction by bovine neutrophils, was adapted for the measurement and characterization of Ph-1 cytotoxin activity. Using …

Cenobium 1988, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, Rosmarie Eger

Cenobium Yearbook

Cenobium began publication in 1977 and continued through 1990. Produced by students, the yearbooks are a chronicle of the daily life and the special events experienced by veterinary students at the LSU School of Veterinary Medicine.

Soils Of The Mississippi River Alluvial Plain In Louisiana, B A. Schumacher

LSU Agricultural Experiment Station Reports

No abstract provided.

Dehalogenation In Marine Sediments Containing Natural Sources Of Halophenols., G. M. King

Faculty Publications

Halophenols such as 2,4-dibromophenol (DBP) occur naturally in some marine sediments, as a consequence of various animal and algal activities. In an earlier study, DBP was observed in the burrow microenvironment of the hemichordate Saccoglossus kowalewskii. At the concentrations found in the burrow lining, aerobic respiration appeared to be inhibited significantly relative to anaerobic catabolism. This effect, as well as factors contributing to the degradation of DBP, has been documented further here. Results from the addition of radiolabeled DBP to oxic and anoxic sediment slurries and growth experiments with aerobic and anaerobic enrichments suggested that aerobes did not significantly metabolize …

Louisiana Agriculture Magazine, Winter 1988-1989, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Lsu General Catalog 1988-1989, Louisiana State University And Agricultural And Mechanical College

LSU General Catalog

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students.

Semen Quality Characteristics Of Dairy Goats, J. E. Chandler, C. L. Painter, R. W. Adkison, M. A. Memon, P. G. Hoyt

Faculty Publications

Semen was collected, processed, and frozen from five dairy bucks for 2 successive yr for use in quality classification and evaluation for inclusion in artificial insemination programs. Semen was evaluated for volume, initial, postthaw and 37°C incubated percent progressive motility, percent postthaw 3-h 37°C incubated intact acrosomes, autoagglurination, whey-induced agglutination, and percent primary, secondary, and tertiary abnormalities. Significant high correlations were found between: percent progressive motility and percent intact acrosomes, percent intact acrosomes and percent autoagglutination, and percent autoagglutination and percent whey agglutination. Means of the postthaw quality parameters, percent progressive motility, precent intact acrosomes, and percent primary and secondary …

Protein Solubility, In Vitro Ammonia Concentration, And In Situ Disappearance Of Extruded Whole Cottonseed And Other Protein Sources, J. A. Stutts, W. A. Nipper, R. W. Adkinson, J. E. Chandler, A. S. Achacoso

Faculty Publications

Whole cottonseed extruded at temperatures (°C) and rates (kg/h) of 131, 314; 135, 182; 146, 195; and 156, 286 was evaluated by protein solubility, in vitro ammonia concentration, and in situ disappearance techniques. These techniques were used to estimate potential of extruded whole cottonseed for protein escape from the rumen. In addition, raw whole cottonseed, soybean meal, corn gluten meal, and whole cottonseed and soybean meal heated for 4 h at 127, 138, and 149°C were used for comparison. Solubility was by three methods: cold water mixed for 30 min, cold water homogenized for 5 s, and hot water refluxed …

An Analysis Of Rice Import Demand In Selected Asian Economies., Wijepala Rupasinghe Jayawardana

LSU Historical Dissertations and Theses

The primary purpose of this study was to analyze the rice import demand behavior in seven Asian countries namely, India, Indonesia, the Republic of Korea, Malaysia, the Philippines, Sri Lanka and Bangladesh. Three rice import demand models were estimated, the direct demand model which treats imports as a function of border prices and income, the residual import demand model where the imports are the excess of consumption over domestic production, and the reduced form model which incorporates both domestic demand and supply variables. Import demand functions were estimated by the ordinary least squares (OLS) method. Seemingly unrelated regression (SUR) was …

The Relationship Between Learned Sexual Values And Adjustment In A Prison Setting., James William Robinson

LSU Historical Dissertations and Theses

The degree of environmental control exerted by female inmates was examined as a function of gender role identity. The sample was obtained at the Louisiana Correctional Institute for Women, the only female prison in the state. The prison environment was assumed to offer very few control options. The options studied were those under the direct authorization of the social services division of the prison, and from individuals external to the prison. It was assumed that the flexibility found in androgynous individuals would allow for a greater level of perceived control than with either the masculine or feminine gender role identity …

Lessons Of The Masters: Social Tension As A Creative Necessity In The Fiction Of Hawthorne, James, And Joyce., Craig Arthur Milliman

LSU Historical Dissertations and Theses

A study of talented characters reveals that three of the most influential novelists in English dealt with the often disabling image of the artist they had inherited from their Romantic forebears by insisting on dialectical tension between the artist and society as essential to the creation of literary art. The various talented characters in Hawthorne's short fiction, such as Aylmer, Rappaccini, Oberon, the Canterbury poet, the portrait painter of "The Prophetic Pictures," the woodcarver Drowne, and Owen Warland, fail to create art unless they retain certain links with their societies of origin. This tension between artist and society appears as …

A Community Sample's Knowledge Of, Judgment Of, And Attitudes Toward Childrearing And Child Abuse., Harriet Schoenberg Williams

LSU Historical Dissertations and Theses

The present study addressed an important void in the literature of child abuse prevention. The challenge in empirical development of preventive education in child abuse to the public lies in the identification of specific target behaviors which are (1) related to potential child abuse, and (2) amenable to education. This investigation examined individual's expectations, attitudes and beliefs toward childrearing, as well as individual's knowledge of childrearing and behavioral child management techniques. Data generated in this study also evaluated the presence of differential judgments of child abuse in a community sample. Two hundred and eighty-two community volunteers participated in this study. …

Laboratory Investigation Of The Pathogenesis And Vector Ecology Of Canine Infection With Ehrlichia Platys., Robert Mark Simpson

LSU Historical Dissertations and Theses

Dogs were inoculated with Ehrlichia platys and either examined morphologically or infested with Rhipicephalus sanguineus (Acari: Ixodidae) ticks for studies of disease pathogenesis and vector transmission. Dogs inoculated with Ehrlichia platys were sequentially necropsied at 1 week intervals from 7 to 35 days post inoculation. Ehrlichia platys-infected dogs had generalized lymphadenomegaly and histopathologic evidence of lymphoid hyperplasia and proliferation of resident tissue macrophages in lymph nodes, liver, and spleen. Most dogs had mild hemorrhage or edema in multiple organs, including splenic intrafollicular hemorrhages in all dogs except one. Livers had hepatocellular vacuolation in addition to portal lymphangiectasia and Kupffer cell …

Physicochemical Properties Of Brown Rice As Influenced By Gamma-Irradiation, Variety And Storage., Veronica Castro Sabularse

LSU Historical Dissertations and Theses

Effects of gamma-irradiation, variety and storage on physicochemical properties of brown rice from three Louisiana rice varieties: Mars, a medium grain variety, Lemont and Tebonnet, long grain varieties, were determined. Cooking time was significantly reduced in Mars and Lemont at doses of 200 and 300 Krads. Irradiation increased cooking rate, water uptake at 80$\sp\circ$C, water uptake ratios, total solids content in residual cooking liquid and starch damage from 100 to 300 Krad samples. Water uptake at 96$\sp\circ$C generally decreased with increasing dose levels. Evidence indicated alterations in the rice grain structure and composition. The component drastically affected by gamma-irradiation was …

Mastitis In Single And Multiple Trait Holstein Lines., Ricardo J. Vaamonde

LSU Historical Dissertations and Theses

Cows diagnosed as having clinical mastitis and from two sire selection lines were compared to assess differences in somatic cell count scores, duration of clinical episode and number of antibiotic treatments applied. The effect of various environmental factors and type traits on somatic cell count score (SCCS) and on duration of episode was investigated and amount and cost of discarded milk was calculated. Data consisted of multiple observations on cows diagnosed as clinically infected at least once during a lactation. Single trait (ST) cows were daughters of sires selected based on predicted differences for milk. Multiple trait (MT) cows were …

The Dark Side Of Paradise: Race And Ethnicity In The Novels Of F. Scott Fitzgerald., Felipe Smith

LSU Historical Dissertations and Theses

According to author and scholar Ralph Ellison, the writers of the early twentieth century (with the exception of Faulkner) adopted Mark Twain's stylistic innovations in pursuit of their personal myth instead of "recreating and extending the national myth" by continuing Twain's development of "the Negro as the symbol of man." To Ellison, these writers had capitulated to a strong current prevalent in American thought: American self-definition in racially exclusive terms. They presented as reality stereotyped portrayals of blacks and other ethnic minorities which served as "key figure (s) in a magic rite by which the white American seeks to resolve …

Epidemiology Of Campylobacter Jejuni., Kanagasundaram Yogasundram

LSU Historical Dissertations and Theses

A study was conducted to determine the prevalence of Campylobacter jejuni in various avian species and humans. Cloacal swabs derived from birds submitted to the Louisiana Veterinary Medical Diagnostic Laboratory for necropsy examination during the period February 1987 through July 1988 were routinely cultured for C. jejuni using Butzler's selective medium. Campylobacter jejuni was isolated from 10.1% of the cases examined. The isolation rate was 25.2% in Galliformes, 12.9% in Anseriformes, 8.3% in Columbiformes, 7.7% in Falconiformes, and 0.6% in Psittaciformes. None of the other orders of birds examined yielded C. jejuni. Prevalence data demonstrated that Galliformes are important reservoirs …

The Effects Of Marginal And Severe Dietary Magnesium And Copper Deficiencies On Immune Function., Marlene Marie Most Windhauser

LSU Historical Dissertations and Theses

Throughout history, people speculated that an association existed between nutrition and disease prevention. Recently, studies have examined the influence of single nutrients on immunological mechanisms, but with limited focus on marginal deficiencies. This project investigated the effects of severe, marginal, and adequate levels of dietary magnesium and copper on immune function. Three experiments were conducted, with 100 gm male rats consuming one treatment diet for three, four or eight weeks. Mineral levels used were: (1) magnesium--50 ug/gm, 160 ug/gm, 280 ug/gm, 400 ug/gm; (2) copper--0.5 ug/gm, 2.0 ug/gm, 3.5 ug/gm, 5.0 ug/gm; or (3) a combination of the severely deficient …

Natural And Artificial Regeneration Of Baldcypress (Taxodium Distichum (L.) Rich.) In The Barataria And Lake Verret Basins Of Louisiana., William Henry Conner

LSU Historical Dissertations and Theses

Louisiana contains the largest volume of baldcypress (Taxodium distichum (L.) Rich.) timber in the United States, with 70% of the volume located in the south central part of the state. Baldcypress regeneration was studied in the Barataria and Verret Basins during 1982-1987. Overall, natural regeneration was poor in both basins. There was some recruitment during the dry years 1984 and 1986 but these seedlings did not grow tall enough to survive subsequent flooding. Coppice regeneration in logged areas was excellent after logging, but a majority of the sprouts died in succeeding years. In three projects where baldcypress seedlings were planted …

The Effects Of Linguistic And Non-Linguistic Context On The Deictic Interpretation Of Noun Phrases., Daniel George Foster

LSU Historical Dissertations and Theses

Definite noun phrases (NP's), proper names, and third person pronouns are not consistently interpreted deictically. Furthermore, these three types and first and second person pronouns, or potentially deictic NP's, whether deictic or not, may be interpreted as pertaining to the universe of discourse that each text creates, the situation of writing in which the text is created, or the attitudes of the writer towards the referent of a particular NP. Universe of discourse NP's include generic and descriptive NP's and those deictic in the most basic sense (i.e. those that point within the spatio-temporal field of the world external to …

Antigenic Analysis Of Equine Infectious Anemia Virus Using Monoclonal Antibodies., Khalid Abdullah Hussain

LSU Historical Dissertations and Theses

Monoclonal antibodies (MCAbs) produced against the prototype cell-adapted Wyoming strain of equine infectious anemia virus (EIAV), a lentivirus, were studied for reactivity with the homologous prototype and 16 heterologous isolates. Eighteen hybridomas producing MCAbs were isolated. Western blot (immunoblot) analyses indicated that 10 were specific for the major envelope glycoprotein (gp90) and 8 for the transmembrane glycoprotein (gp45). Four MCAbs specific to epitopes of gp90 neutralized prototype EIAV infectivity. These neutralizing MCAbs apparently reacted with variable regions of the envelope gp90, as evidenced by their unique reactivity with the panel of isolates, suggesting recognition of at least three different neutralization …

A Study On The Toxicity Of Sesbania Drummondii In Chickens And Rats., Marie-Lorraine Marceau-Day

LSU Historical Dissertations and Theses

A comparative study of two susceptible species, the chicken and the rat, to crude and partially purified extracts of the plant Sesbania drummondii was undertaken. Partial physical and chemical characterization of crude sesbania extracts has been accomplished including temperature and pH stability, molecular weight fractionation and high pressure liquid chromatography and thin layer chromatography retention times. The toxicity of these different fractions could be differentiated with respect to weight loss, mortality, morbidity, serum protein changes and effect on PChE (Pseudocholinesterase) activities. The results indicated that more than one toxin exists in crude extracts of this plant. The pathophysiological findings could …

Xenobiotic Residues In Louisiana Crayfish Tissues And Their Environs., Jerome D. Madden

LSU Historical Dissertations and Theses

Two commercially important species of Louisiana crayfish, Procambarus clarkii (Girard) and P. acutus acutus (Girard), from the Atchafalaya River Basin and from open ponds, as well as sediment and water from these environs, were sampled at three times during two consecutive fishing (production) seasons. The abdominal muscle and hepatopancreatic tissue were digested with nitric acid; the sediment was dried prior to digestion with hydrofluoric acid and aqua regia; and the water was filtered prior to analysis by inductively coupled plasma emission spectrometry (ICP) for As, Cd, Cu, Cr, Hg, Pb, and Ni. Pb, Hg, and Cd, if present, were in …

Processing And Freezing Methods Influencing The Consistency And Quality Of Fresh And Frozen Peeled Crawfish (Procambarus Sp.) Meat., Gail Anne Marshall

LSU Historical Dissertations and Theses

The production and processing of freshwater crawfish (Procambarus sp.) is an important seafood industry in Louisiana. Year round availability of a consistently high quality product will help maximize marketability of peeled crawfish meat. This study addressed several quality problems associated with fresh and frozen crawfish meat. Fresh, peeled crawfish meat is frequently packaged with hepatopancreas for added flavor in prepared dishes. Sporadic development of mushiness in crawfish meat packed with hepatopancreas was an unpredictable problem for crawfish processors. Hepatopancreatic enzymes were thought to be causing proteoloysis of ice-stored meat. Study results showed significant effects (p $<$ 0.01) of cooking time on the texture of ice-stored meat. Gelatin degradation by hepatopancreas proved to be a good indicator of enzyme activity and adequacy of blanch treatment. A popular preference for red swamp crawfish (P. clarkii) over white river crawfish (P. acutus acutus) is maintained by many processors and consumers. Both species are harvested simultaneously in mixed proportions. Easily recognizable exterior physical characteristics distinguish the two species. Sensory differences of processed tail meat had not been determined. Results showed insignificant differences (p $>$ 0.05) in texture …