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Full-Text Articles in Life Sciences

Mitigation Of Bovine Respiratory Disease Complex: Interactions Of Physiology, Immunology, Nutrition And Management, John Thomas Richeson May 2011

Mitigation Of Bovine Respiratory Disease Complex: Interactions Of Physiology, Immunology, Nutrition And Management, John Thomas Richeson

Theses and Dissertations

A series of experiments were conducted to determine the effects of on-arrival vs. delayed respiratory vaccination and exposure to persistently infected bovine viral diarrhea virus challenge on health, gain performance, and physiological and immunological measurements in newly received stocker cattle. Two experiments evaluated timing (d 0 vs. 14) of respiratory, clostridial, or both vaccinations in newly received stocker calves during stress-induced immunosuppression. In Exp. 1, calves receiving 14-d delayed vaccination of a pentavalent modified-live respiratory virus (MLV) vaccine had greater ADG during the 42-d receiving period and antibody titers against infectious bovine rhinotracheitis on d 42; however, morbidity rate did ...


The Effects Of Pre-Exercise Carbohydrate Supplementation On Resistance Training Performance During An Acute Resistance Training Session, Kelly Raposo Jan 2011

The Effects Of Pre-Exercise Carbohydrate Supplementation On Resistance Training Performance During An Acute Resistance Training Session, Kelly Raposo

Graduate Theses and Dissertations

Abstract

It appears that "carbohydrate loading" may enhance the performance of resistance training, but studies on CHO supplementation prior to a resistance-training bout are limited and have resulted in conflicting findings. PURPOSE: To investigate the effects of pre-exercise CHO supplementation on high-intensity (>75% 1RM) resistance training performance for resistance-trained women during an acute bout of resistance exercise. METHODS: Thirteen resistance trained female participants (21.9 ± 4.8 yrs; 64.5 ± 3.0 in; 137.0 ± 14.8 lbs) came to the Exercise and Performance Nutrition Laboratory on three separate occasions; the day of the Familiarization Trial (FT) and the two ...


The Effects Of Seasonal Changes And Turbidity On Swimming Performance In White Crappie Pomoxis Annularis And Black Crappie Pomoxis Nigromaculatus., Caleb Joseph Gaston Jan 2011

The Effects Of Seasonal Changes And Turbidity On Swimming Performance In White Crappie Pomoxis Annularis And Black Crappie Pomoxis Nigromaculatus., Caleb Joseph Gaston

Electronic Theses and Dissertations

Factors that affect swimming performance in fish can also affect fitness. I tested the effects of time of day, season and turbidity on swimming performance in black crappie Pomoxis nigromaculatus and white crappie Pomoxis annularis. These closely related fish co-occur and their relative abundance is thought to be governed by the levels of turbidity in the form of suspended sediments. Black crappie predominate in clear bodies of water and exhibited significantly greater critical swimming speeds in clear water than did white crappie during spring days and winter nights. A significant reduction in critical swimming speed was observed in black crappie ...


Evaluation Of Environmental Effects On Bovine Viral Diarrhea Virus Type 2 (Bvdv2) Antibody Levels And Response To Bvdv2 Vaccinations In Angus Calves, Erika Diane Downey Jan 2011

Evaluation Of Environmental Effects On Bovine Viral Diarrhea Virus Type 2 (Bvdv2) Antibody Levels And Response To Bvdv2 Vaccinations In Angus Calves, Erika Diane Downey

Graduate Theses and Dissertations

Animal health is a major concern in today's livestock industry. Not only is animal illness costly, but it also affects all aspects of the industry from the cow calf producer to the feedlot operator. Bovine respiratory disease (BRD) has large economic ramifications to the beef industry. Bovine respiratory disease has been characterized an interaction between environment, stress, and infectious pathogens. Preventative methods such as vaccination have been used to minimize the repercussions that have been associated with BRD. While vaccination has been used as a preventative method, it is only effective if an immune response is mounted to the ...


The Effect Of Various Carbohydrate Supplements On Postprandial Blood Glucose Response In Female Soccer Players, Nina Pannoni Jan 2011

The Effect Of Various Carbohydrate Supplements On Postprandial Blood Glucose Response In Female Soccer Players, Nina Pannoni

Graduate Theses and Dissertations

PURPOSE: The purpose of this study is to examine the effects of different types of carbohydrates on blood glucose response in collegiate soccer athletes at rest. This will help to determine the effectiveness of a carbohydrate supplement in providing sustained energy and maintained performance if ingested prior to a soccer match. METHODS: In a cross-over design, 10 female collegiate soccer players (n= 10, age 20.10 ± .99 years, height 65.55 ± 2.77 inches, weight 64.12 ± 8.36 kilograms) from the University of South Florida reported to the laboratory on five separate occasions after an overnight fast. Once a ...


Effects Of Functional Oils And Monensin On Cattle Finishing Programs, Tsengeg Purevjav Jan 2011

Effects Of Functional Oils And Monensin On Cattle Finishing Programs, Tsengeg Purevjav

Graduate Theses and Dissertations

The objectives of this experiment were to evaluate the use of functional oils (FO) mixture and EssentialTM, with and without ionophores on feedlot performance, carcass characteristics and economic analysis of cattle drylot finishing programs. The FO, natural products composed of cashew nut shell oil and castor oil, have been introduced into the United States because they are thought to offer similar benefits as ionophores without the drawbacks of being synthetic products. A two-trial study was conducted using 120 (322 y 10 kg) Angus and Angus crossbred steer calves in each trial. Calves were weighed and assigned to five treatment ...


Mouth Rinsing With Branched-Chain Amino Acids And Carbohydrates On Steady-State Metabolism, Exercise Performance, And The Endocrine Responses To Exercise, Zebblin Matthew Sullivan Jan 2011

Mouth Rinsing With Branched-Chain Amino Acids And Carbohydrates On Steady-State Metabolism, Exercise Performance, And The Endocrine Responses To Exercise, Zebblin Matthew Sullivan

Graduate Theses and Dissertations

Previous research suggests that mouth rinsing carbohydrates (CHO) improves exercise performance. The mechanisms for the improvement are not yet known, but may involve maintenance of insulin concentrations during exercise or attenuation of centrally-mediated fatigue from putative, caloric-responsive receptors in the oral cavity. The purpose of this study was to determine the effects of mouth rinsing branched-chain amino acids (BCAA) or CHO on cycle time trial performance, blood markers of central fatigue (prolactin), plasma insulin, glucose, and lactate concentrations, substrate oxidation during steady-state exercise, and the subjective exercise experience. Ten healthy, endurance-trained adult males (23.5 y 3.8 y, 74 ...