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Articles 1 - 30 of 36
Full-Text Articles in Life Sciences
Effect Of Surfactants On The Pretreatment Of Sugarcane Bagasse With Dilute Ammonia, Shuo Cao
Effect Of Surfactants On The Pretreatment Of Sugarcane Bagasse With Dilute Ammonia, Shuo Cao
LSU Master's Theses
Lignocellulosic biomass is composed of cellulose, hemicellulose and lignin which are not readily available for conversion in their native form. It is widely accepted that lignin acts as the “glue” that binds cellulose and hemicellulose, giving rigidity and resistance to lignocellulose. The use of non-ionic surfactants during pretreatment can help alter the structure of lignocellulosic biomass to improve cellulose digestibility and ethanol yields. Tween 80, Tween 20, PEG 4000, or PEG 6000 was used with ammonium hydroxide for the pretreatment of sugarcane bagasse. The pretreatment was carried out by mixing sugarcane bagasse, ammonium hydroxide (28% v/v) and water at a …
Comparative Genomics, Transcriptome Analysis And Characterization Of Selected Regulatory Genes Of Burkholderia Glumae, Felix Francis
Comparative Genomics, Transcriptome Analysis And Characterization Of Selected Regulatory Genes Of Burkholderia Glumae, Felix Francis
LSU Master's Theses
Burkholderia glumae is the primary causal agent of bacterial panicle blight of rice, which is becoming a major threat to global rice production. The genome of a highly virulent B. glumae strain, 336gr-1 that was isolated from rice in Louisiana, was sequenced to better understand the genome-scale characteristics, particularly that of its pathogenicity. Comparative genomic analyses with another strain, BGR1 that was isolated from Korea, revealed several unique regions present in the genomes of these two geographically separated phytopathogenic bacteria. Genome plasticity, primarily caused by a horizontal gene transfer, was observed in these closely related strains of Burkholderia that are …
Economic And Attitudinal Perspectives Of The Recreational For-Hire Fishing Industry In The U.S. Gulf Of Mexico, Michelle Savolainen
Economic And Attitudinal Perspectives Of The Recreational For-Hire Fishing Industry In The U.S. Gulf Of Mexico, Michelle Savolainen
LSU Master's Theses
Socioeconomic and policy information is important to fisheries management in order to assess potential social and economic impacts of proposed fishing regulations. Previous surveys which collect this type of data for the recreational for-hire (RFH) fishing industry in the U.S. Gulf of Mexico were conducted in 1987 and 1997. The third Gulf-wide survey was conducted in 2010 to update the socioeconomic and policy data available on the RFH industry. More specifically, the survey collected captain, vessel, and trip characteristics, firm and trip financial data, targeted species, and opinions on policy issues and hurricane impacts. State license information indicated that 3,315 …
Insulin Dose Response Curves And Factors Affecting Insulin Sensitivity In Horses, Jeanne D. Lestelle
Insulin Dose Response Curves And Factors Affecting Insulin Sensitivity In Horses, Jeanne D. Lestelle
LSU Master's Theses
Three experiments were conducted to further study the use of intravenous insulin injection to measure insulin sensitivity in horses. In the first experiment, glucose responses to multiple doses of recombinant human insulin were compared in insulin sensitive and insensitive mares. Regression lines describing the responses in insensitive mares had less (P = 0.003) steep slopes and greater (P = 0.006) effective doses at 50% response (ED50) compared to sensitive mares. Curvilinear regression models provided a good fit (R2 = 0.95) for the prediction of ED50 from the individual responses to 50 mU/kg BW insulin. The second experiment estimated the repeatability …
Evaluation Of Bacillus Thuringiensis Corn Containing Pyramided Traits For Management Of Sugarcane Borer, Diatraea Saccharalis (F.), David Sindani Wangila
Evaluation Of Bacillus Thuringiensis Corn Containing Pyramided Traits For Management Of Sugarcane Borer, Diatraea Saccharalis (F.), David Sindani Wangila
LSU Master's Theses
The sugarcane borer, Diatraea saccharalis (F.), is a major target of Bacillus thuringiensis (Bt) corn in the U.S. mid southern region. Corn expressing pyramided Bt proteins has recently become commercially available in the U.S. The objectives of this study were 1) to determine survival and plant injury of Cry1Ab-susceptible (Cry1Ab-SS), -resistant (Cry1Ab-RR), and –heterozygous (Cry1Ab-RS) genotypes of D. saccharalis on Bt corn containing single and pyramided Bt genes and 2) to assess larval movement of D. saccharalis in different planting patterns of non-Bt and Bt corn. One laboratory leaf tissue bioassay and two independent greenhouse trials were conducted to evaluate …
Training, Nutrition, Injury And Lifestyle Characteristics Of Shorter Distance Triathletes, Loren Elizabeth Johnson
Training, Nutrition, Injury And Lifestyle Characteristics Of Shorter Distance Triathletes, Loren Elizabeth Johnson
LSU Master's Theses
Triathlon is an increasingly popular sport in which an athlete competes in swimming, biking and running in a single competitive bout. Today there are more than 140,000 members in the sanctioning body for triathlon. However, there is little descriptive data about this group of athletes. PURPOSE: The primary purpose of this exploratory study was to describe the demographics, training habits, nutritional practices, injury occurrence and overall health status of triathletes and identify any differences between two studies that collected this information. The secondary purpose was to examine any significant correlations among the major outcome variables in the LSU study. METHODS: …
Evaluating The Efficacy Of Methoxyfenozide On Louisiana, Texas And The Mid-Southern Soybean Looper Populations, Sebe Anthony Brown
Evaluating The Efficacy Of Methoxyfenozide On Louisiana, Texas And The Mid-Southern Soybean Looper Populations, Sebe Anthony Brown
LSU Master's Theses
The soybean looper, Chrysodeixis includens (Walker), is a defoliating insect pest of soybean in the Mid-South and Texas. In 2008, Louisiana producers reported unsatisfactory control of soybean loopers in soybean with methoxyfenozide. In 2009 and 2010, field collections from Louisiana, Missouri, Mississippi and Texas were exposed to discriminating concentrations (0.020 to 5.000 ai ìg/ml) of methoxyfenozide in diet incorporation bioassays. All field colonies were compared to a reference strain LC50 of 0.007 ìg/ml for 2009 and 0.008 ìg/ml for 2010. Louisiana populations exhibited LC50’s of 0.079 ìg/ml and 0.122 ìg/ml for 2009 and 2010, respectively, which were the highest values …
Autonomic Nervous System Response To Repeated Cold Exposure, Jonathan A. Simmons
Autonomic Nervous System Response To Repeated Cold Exposure, Jonathan A. Simmons
LSU Master's Theses
Recent work suggests repeated cold exposure raises energy expenditure, partly due to sympathetic nervous system stimulation, which indicates repeated cold exposure as a possible strategy to combat obesity without significant behavioral changes. PURPOSE: (1) To examine the acute resting metabolic rate (RMR) response to mild cold exposure of 16° C and the acute autonomic nervous system (ANS) response to two cold exposures of 16° C and 4° C through heart rate variability (HRV) indices; and (2) to examine whether 4 weeks of daily cold exposure would result in adaptations in the metabolic and autonomic responses to acute cold exposure. METHODS: …
Vacuum Tumbling For The Incorporation Of Phosphates In Gulf Shrimp., Matthew Daryl Cael
Vacuum Tumbling For The Incorporation Of Phosphates In Gulf Shrimp., Matthew Daryl Cael
LSU Master's Theses
A processing method for shrimp in the Gulf of Mexico region is to place mechanically peeled shrimp in plastic bags in a retail box and add a mixture of water, sodium chloride, and sodium tripolyphosphate (STPP). The box is then placed in frozen storage. As the shrimp and solution freeze, there is a potential for the shrimp to absorb solution inconsistently. When used properly, phosphates help to retain natural moisture, and protect the product through freezing and thawing. However, excessive absorption of phosphate solution can lead to a loss of functional benefits in the finished product. When thawed, the over-treated …
A Survey Of Ballistosporic Phylloplane Yeasts In Baton Rouge, Louisiana, Sebastian Albu
A Survey Of Ballistosporic Phylloplane Yeasts In Baton Rouge, Louisiana, Sebastian Albu
LSU Master's Theses
A study documenting basidiomycete yeast biodiversity was conducted in Baton Rouge, Louisiana during 2010 and 2011. Using the spore-fall method, the leaf surfaces of seven ferns were sampled at biweekly intervals. Maximum likelihood phylogenetic analyses of the internal transcribed spacer (ITS) region and the D1/D2 domain of the large subunit (LSU) of nuclear ribosomal DNA were used to identify 463 isolates representing 81 species spanning 12 orders within six classes in Basidiomycota. Nearly 30 of these isolates appear to be species new to science. Data indicate fern leaf developmental stage has an effect on the number of yeasts present. A …
Commuting Patterns And Labor Markets: A New Regional Classification For Louisiana, Deepa Acharya
Commuting Patterns And Labor Markets: A New Regional Classification For Louisiana, Deepa Acharya
LSU Master's Theses
Regional classification and labor market study form an important part of any regional development efforts. Successful formation and implementation of developmental policies for a region requires a sound knowledge of the labor market situation and socioeconomic background of the region, which in turn leads ultimately to regional welfare. We find literature in the area of regional classification to be very inadequate. This study classifies Louisiana using a clustering approach in two different ways. First of all, Ward’s method has been used to classify Louisiana into labor markets based on two-way commuting flow between the parishes. Eight geographical clusters are formed …
The Effect Of Frozen Storage On The Survival Of Probiotic Microorganisms Found In Traditional And Commercial Kefir, Keely Virginia O'Brien
The Effect Of Frozen Storage On The Survival Of Probiotic Microorganisms Found In Traditional And Commercial Kefir, Keely Virginia O'Brien
LSU Master's Theses
Kefir is a fermented milk traditionally made from a unique starter culture, which consists of numerous bacteria and yeast species bound together in an exopolysaccharide matrix produced by certain lactic acid bacteria. Many health benefits are associated with traditionally produced kefir; however, bulging and leaking packaging, caused by secondary yeast fermentation during storage, has limited large scale manufacture traditionally produced kefir. Commercial kefir products have been designed to reduce these effects by using a pure starter culture consisting of a mixture of bacteria and yeast species that give a flavor similar to traditional kefir, but some health benefits may be …
Evaluation Of Methods For Suppressing Estrus And Ovulation In Mares: Sustained Release Injections Of Altrenogest Versus Deslorelin Acetate, Thomas J. Stevens
Evaluation Of Methods For Suppressing Estrus And Ovulation In Mares: Sustained Release Injections Of Altrenogest Versus Deslorelin Acetate, Thomas J. Stevens
LSU Master's Theses
Two experiments assessed the potential of altrenogest, an artificial progestogen, and deslorelin acetate, a gonadotropin-releasing hormone (GnRH) agonist, for suppressing estrus and ovulation in cyclic mares. In the first experiment, mares were administered a luteolytic dose of prostaglandin-F2á on d 6 of diestrus, and were then treated with 1 of 3 formulations of altrenogest in slow-release vehicle (6 mares/group): 1) Biorelease altrenogest LA150 (225 mg total as a 1.5 mL injection); 2) Biorelease altrenogest LA225 (225 mg total as a 1.0 mL injection); or 3) Biorelease altrenogest LA225 (450 mg total as a 2.0 mL injection). Six control mares received …
The Acute Effects Of Stretching On Pennation Angle And Force Production, Ryan William-Ignatius Miskowiec
The Acute Effects Of Stretching On Pennation Angle And Force Production, Ryan William-Ignatius Miskowiec
LSU Master's Theses
PURPOSE: This study was designed to investigate the acute effects of stretching on pennation angle of the Medial Gastrocnemius and maximal voluntary isotonic plantar flexion. METHODS: 24 healthy college age subjects (14 female, 10 male, age 19-30) completed four trials using a randomized crossover design. Trials consisted of assessing the maximal voluntary isotonic contraction (MVC) and pennation angle (PA) before and after each treatment. Treatments consisted of either stretching (S) or mock stretching (MS). The S treatment involved four 30 second periods of stretching with 15 seconds of rest in between. During the MS treatment subjects were maintained in the …
The Use Of Ionic Liquid For The Pretreatment Of Energy Cane Bagasse, Zenghui Qiu
The Use Of Ionic Liquid For The Pretreatment Of Energy Cane Bagasse, Zenghui Qiu
LSU Master's Theses
Lignocellulosic biomass appears to be a prospective renewable resource that can be used for the generation of biofuels and bioproducts. The major concern in lignocellulose conversion is overcoming biomass recalcitrance through pretreatment while still maintaining a green, energy efficient and cost-effective process. Energy cane is a promising energy crop with high fiber content, cold tolerance, and less fertilizer and water input requirements as compared to conventional sugarcane. Ionic liquids (ILs) are promising solvents for the pretreatment of lignocellulose as they are thermally stable, environmentally friendly, recyclable, and have low volatility. This study assessed the use of ionic liquid 1-ethyl-3-methylimidazolium acetate …
The Effects Of Spinosad On Culex Quinquefasciatus (Diptera: Culicidae) And Non-Target Insect Species, Owen Mcbride Jones
The Effects Of Spinosad On Culex Quinquefasciatus (Diptera: Culicidae) And Non-Target Insect Species, Owen Mcbride Jones
LSU Master's Theses
Spinosad is a relatively new insecticide with a unique mode of action that is being evaluated for control of larval mosquitoes. Whereas a number of toxicological studies have measured effects of spinosad on various mammals, fish, birds, and terrestrial arthropods, fewer studies have been conducted on the effects of spinosad on non-target aquatic insect species. Such studies are important as these species might be found in the same environments as mosquito larvae targeted for control. A neighborhood pond was surveyed to find a representative species of mosquito as well as other common aquatic insects with which to examine susceptibility to …
Reduced Protein For Late-Lactation Dairy Cows, Andre De Barros Duarte Pereira
Reduced Protein For Late-Lactation Dairy Cows, Andre De Barros Duarte Pereira
LSU Master's Theses
Excess protein in dairy cattle diets unnecessarily increases the cost of production and may contribute to environmental pollution. The objective of this research was to evaluate the effect of feeding dairy cows with two levels of dietary protein on animal performance and manure characteristics. Two experiments were carried out with 24 lactating dairy cows each. Experiment 1 was corn silage based and had a control TMR (HP1) estimated to contain 16.5% CP with SBM and treatment TMR (LP1; 13.5% CP) using DDGS and rumen protected Lys and Met. Experiment 2 was ryegrass haylage based and had a control TMR (HP2) …
Assessment Of Stink Bug Feeding Damage In Louisiana Soybean: Use Of A No-Choice Feeding Field Protocol, Jessica Leigh Parker
Assessment Of Stink Bug Feeding Damage In Louisiana Soybean: Use Of A No-Choice Feeding Field Protocol, Jessica Leigh Parker
LSU Master's Theses
Numerous arthropods are pests of soybean in the subtropical environment of Louisiana. The most important pod-feeding guild includes a complex of stink bugs (Hemiptera: Pentatomidae). One of these species, redbanded stink bug (Piezodorus guildinii [Westwood]), has emerged as a significant pest in Louisiana soybean. Currently, limited information is available describing soybean plant injury from this pest in the United States or compares injury relative to native stink bugs. Therefore, a field protocol was modified to assess injury to soybean seeds. Studies conducted in Louisiana during 2009-2011 used procedures to isolate the effects of infestation duration (24-96 h after infestation [HAI]) …
Repeatability Of Prolactin Responses To Sulpiride In Mares And Geldings And The Effect Of Pergolide And Cabergoline, Rebekah C. Hebert
Repeatability Of Prolactin Responses To Sulpiride In Mares And Geldings And The Effect Of Pergolide And Cabergoline, Rebekah C. Hebert
LSU Master's Theses
Four experiments were conducted in an effort to develop a method, based on prolactin secretion, for assessing the efficacy and duration of activity of dopaminergic agonists for the treatment of pituitary pars intermedia dysfunction (PPID) in horses. In the first experiment, prolactin response to a low dose of the dopamine antagonist, sulpiride, was generally repeatable in estrogen-primed geldings in winter over 8 every-other-day challenges. It was concluded that estrogen-primed, sulpiride-challenged geldings in winter could serve as a model for the study of potential dopaminergic drugs for the treatment of PPID in horses. The second experiment was performed in the summer …
Does Endurance Training Alter Energy Balance?, Brittany Inlow
Does Endurance Training Alter Energy Balance?, Brittany Inlow
LSU Master's Theses
An examination of the effects of a structured activity program on resting metabolic rate (RMR), physical activity, and dietary behavior is essential in gaining a better understanding of potential strategies that may be used in future exercise training programs. PURPOSE: To explore whether endurance training alters energy balance via changes in resting metabolic rate (RMR), daily energy expenditure (EE) and energy intake (EI). METHODS: Twenty-four subjects (17 females, 7 males; 21 + 0.3 years old) were assigned to one of two groups: 1) endurance (E; n = 12), or 2) active control (AC; n = 12). The E group completed …
Economic Assessment Of Rapid Land-Building Technologies For Coastal Restoration, Hua Wang
Economic Assessment Of Rapid Land-Building Technologies For Coastal Restoration, Hua Wang
LSU Master's Theses
In the wake of recent hurricanes, coastal managers in Louisiana have begun integrating infrastructure protection and habitat restoration. Concurrent with this change, emphasis has been placed on marsh creation (MC) techniques that rely on mechanical dredges and sediment conveyance pipelines to rapidly build new land. The costs and benefits of this approach are increasingly compared to more natural and slower methods using fresh water diversions (FWD), yet such comparisons are not typically inclusive of time and risk considerations. Data for more than 300 coastal wetland restoration projects were evaluated for the statistical development of generic acreage trajectories and restoration cost …
Consumer And Processor Methods To Control Salmonella And Listeria In Shrimp, Genevieve Anne Edwards
Consumer And Processor Methods To Control Salmonella And Listeria In Shrimp, Genevieve Anne Edwards
LSU Master's Theses
A common method used by consumers to determine if shrimp are thoroughly cooked when boiling, is to wait until the shrimp float to the top of the water and are pink in color. The purpose of this study was to determine whether the current floating and color cooking method is adequate to ensure the elimination of Listeria and Salmonella species. Furthermore, to determine if processing and storage methods reduce the effectiveness of this method. Shrimp samples were submerged into bacterial suspensions for 30 min then allowed to air dry for 1 hr and color parameters were measured using a colorimeter. …
Evaluation Of Single Nucleotide Polymorphisms Associated With Fertility And Production Traits In Holstein And Multi-Generational Angus Females, Rebecca Ann Hill
Evaluation Of Single Nucleotide Polymorphisms Associated With Fertility And Production Traits In Holstein And Multi-Generational Angus Females, Rebecca Ann Hill
LSU Master's Theses
The objective of this study was to test the association of single nucleotide polymorphisms (SNPs) with fertility in two populations consisting of Holstein cows and multi-generational Angus cows. The candidate gene approach was utilized and previously described SNPs were tested for possible associations with fertility. Single nucleotide polymorphisms on three genes were evaluated including leptin receptor LEPR, calpastatin CAST, and DGAT1. Fertility traits were evaluated in conjunction with production traits for Holstein females and growth traits for Angus females. One SNP was significantly associated with birth weight (P < 0.05) in Angus females while a trend (P < 0.10) was observed for two markers influencing birth weight performance and three markers influencing weaning weight performance. An association of two SNP for birth weight and back fat thickness in Angus females was identified.!A trend (P < 0.10) was observed for one marker within LEPR influencing average services to conception, two markers within CAST influencing average days open, two markers within CAST and one marker within DGAT1 influencing average protein production, and one marker within CAST and one marker within DGAT1 influencing average milk production. One SNP within LEPR was significantly associated with average milk production (P < 0.05) in Holstein females. An association of one SNP within CAST and one SNP within DGAT1 for average protein production and average milk production in Holstein females was identified. An association of one SNP within CAST for average days open and average protein production in Holstein females was also identified. The association of these markers indicates that the evaluated quantitative trait loci (QTL) region may harbor causative mutations responsible for the variation observed in fertility and production traits. Further evaluation of SNP in these regions is necessary in order to identify mutations accounting for the largest degree of variation for fertility and production traits.
Identification Of Algal Strains By Pcr Amplification And Evaluation Of Their Fatty Acid Profiles For Biodiesel Production, Reynaldo Moreno
Identification Of Algal Strains By Pcr Amplification And Evaluation Of Their Fatty Acid Profiles For Biodiesel Production, Reynaldo Moreno
LSU Master's Theses
Four microalgae, obtained from different brackish and fresh water sources within the state of Louisiana’s Southeast region, were evaluated for their potential use in the production of biodiesel. The microorganisms were isolated and identified using genomic DNA, and 16S rRNA or 18S rRNA gene amplification followed by sequencing. The resultant sequences were compared with those available on the NCBI website database through the BLAST bioinformatic tool. The results showed high correlation with known nucleotide sequence identities at 99 % with Synechococcus sp., 98 % with Sellaphora pupula, 99 % with Chlorella sorokiniana, 99 % with Scenedesmus abundans, and 99 % …
Searching For Alternative Hosts And Determining The Variation In The Internal Transcribed Spacer (Its) Region Of Phakopsora Pachyrhizi And The Implications For Currently Used Molecular Diagnostic Assays: Subtitle, Tomas Allen Rush
LSU Master's Theses
Phakopsora pachyrhizi, the causal agent of soybean rust (SBR), is a serious disease on soybeans.The objectives of this project were to identify additional alternative and possible overwintering hosts of the SBR pathogen and to validate the current detection assays for SBR. For the first objective, we attempted to identify naturalized Louisiana legume(s) that can serve as hosts and overwintering sites for P. pachyrhizi. It was theorized that New Iberia and Iberville Parishes in south Louisiana are usually the first locations of soybean infection in the spring. This suggests that there may be alternative leguminous hosts located in these parishes that …
Oil-Mediated Mortality And Induced Behavioral Modifications Of Coastal Insects, Benjamin Jacob Adams
Oil-Mediated Mortality And Induced Behavioral Modifications Of Coastal Insects, Benjamin Jacob Adams
LSU Master's Theses
The Deepwater Horizon oil spill affected over one thousand kilometers of the southeastern United States’ coast in the Gulf of Mexico especially Louisiana’s salt marshes. These marshes are a vital part of the state’s economy and coastal ecology; however, the insects residing in this area remain largely unstudied. The goal of my project was to answer specific questions arising from two ongoing investigations of the insects in the oiled marshes. I sampled insects using sweep nets and insect vacuums to determine the most efficient technique to use in the marsh, compared insects collected in oiled and non-oiled marshes, and completed …
Yogurt Cultures Survive Upon Exposure To Two Antimicrobials And Streptococcus Thermophilus St-M5 Acquired Resistance To Both Antimicrobials, Maria Carolina Vives Habeych
Yogurt Cultures Survive Upon Exposure To Two Antimicrobials And Streptococcus Thermophilus St-M5 Acquired Resistance To Both Antimicrobials, Maria Carolina Vives Habeych
LSU Master's Theses
Different antimicrobials are added in the manufacturing of dairy products such as flavored yogurts and processed cheese. Potassium Metabisulfite (PM) and Potassium Nitrite (PN) have been reported to have antimicrobial effect on pathogenic microorganisms such as Clostridium botulinum and Listeria monocytogenes. Yogurt is known for its health benefits, due to the presence of cultured bacteria. PM and PN are not commonly used in the dairy industry hence it would be interesting to study their influence in yogurt culture bacteria. The objectives of this study were: 1. to elucidate the influence of PM and PN at various concentrations, on the growth …
Factors Influencing Price Volatility On Soybeans Futures Prices, Diego J. Gavilanez Hernandez
Factors Influencing Price Volatility On Soybeans Futures Prices, Diego J. Gavilanez Hernandez
LSU Master's Theses
Recent unexpected changes (mid-2007- Aug 2011) in agricultural commodity markets have led stakeholders to ask if the volatility of futures prices currently observed are still the result of traditional fundamentals. Consequently, the purpose of this research was to identify those factors that affect monthly soybeans futures price volatility. To accomplish this study, four relevant factors are explored. First, the integration between energy and agricultural markets is accounted for via oil spot prices, as well as a dummy variable to account for the shift in the U.S renewable fuel policy since 2007. Second, the increasing consumption of commodities from China is …
Vitamin D Status, Adiposity, And Athletic Performance Measures In College-Aged Students, Laura Forney
Vitamin D Status, Adiposity, And Athletic Performance Measures In College-Aged Students, Laura Forney
LSU Master's Theses
Research suggests that elevated serum concentrations of 25-hydroxyvitamin D (25OHD) are associated with slowing the development of many age-related chronic diseases. Recent reports also show a positive relationship between 25OHD and muscle synthesis, strength, power and decreased body fat in elderly individuals. However, these findings have not been consistently reported in younger, healthy populations. PURPOSE: To investigate the relationship between 25OHD levels, body composition, measures of aerobic fitness and muscular strength and power in a young, physically active population. METHODS: Thirty-nine active subjects (20 males, 19 females; 23 ± 0.7 years old) reported to the lab six times for testing. …
Forage Systems For Finishing Steers In South Louisiana, Jose M. Rodriguez
Forage Systems For Finishing Steers In South Louisiana, Jose M. Rodriguez
LSU Master's Theses
Research has found conflicting results on animal performance and carcass traits associated with the use of forage as the primary feed source for finishing cattle. Consumer interest in forage-fed products has grown and little research has been done comparing performance of forage-fed animals and beef finished on different forages. Spring weaned calves (n=54; 257 ± 2.5 kg; 3/8 Gelbvieh, 3/8 Red Angus, and 1/4 Brahman) were used in the evaluation of three forage systems (S1, S2, and S3) on a 100% forage diet in two consecutive years (June 2009 and 2010). Steers were divided into 9 groups based on initial …