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You searched for +publisher:"Virginia Tech" +contributor:("Hodgson, Jennifer L."). Showing records 1 – 3 of 3 total matches.

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Virginia Tech

1. Ketusing, Naree. Assessment of Foot and Mouth Disease (FMD) Control Policies and Their Implementation in the Proposed FMD-Free Zone in Thailand.

Degree: PhD, Biomedical and Veterinary Sciences, 2020, Virginia Tech

Foot and Mouth Disease is a highly contagious and the most economically important infectious viral disease of livestock. The disease exists in Thailand and interrupts livestock trade through the loss of access to international markets. The Department of Livestock Development (DLD) within the government of Thailand has proposed to make the eastern region of Thailand an officially recognized FMD-free zone with vaccination in order to advance market access and trade facilitation. In order to be an official FMD-free zone, the proposed FMD-free zone (eastern region of Thailand) needs to be evaluated by experts within the World Organization for Animal Health (OIE) and must meet all requirements of the OIE standard for this certification. Since 2015, there has not been an evaluation to determine the effectiveness and appropriateness of the current FMD control program in the eastern region of Thailand. This study aims to evaluate the design and implementation of the current FMD control program in the eastern region of Thailand. This study, first, developed an evaluation framework and assessment tools for use in the evaluation of the FMD control policies and their implementation in the eastern region of Thailand. Then, the design of the current FMD control policies and their implementation were evaluated. The assessment found that the design of the current FMD control system is appropriate and meets the OIE's requirements. However, the current implementation of the FMD control program needs further improvement. This study also proposes recommendations to the DLD in order to enhance and improve the FMD control system in the eastern region of Thailand to be recognized as an FMD-free zone by the OIE. Advisors/Committee Members: Ragan, Valerie E. (committeechair), Hodgson, Jennifer L. (committeechair), Premashthira, Sith (committee member), Hult, Karen M. (committee member).

Subjects/Keywords: Foot and Mouth Disease; FMD-free zone; assessment; policy design; implementation; Thailand

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Ketusing, N. (2020). Assessment of Foot and Mouth Disease (FMD) Control Policies and Their Implementation in the Proposed FMD-Free Zone in Thailand. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/97581

Chicago Manual of Style (16th Edition):

Ketusing, Naree. “Assessment of Foot and Mouth Disease (FMD) Control Policies and Their Implementation in the Proposed FMD-Free Zone in Thailand.” 2020. Doctoral Dissertation, Virginia Tech. Accessed September 27, 2020. http://hdl.handle.net/10919/97581.

MLA Handbook (7th Edition):

Ketusing, Naree. “Assessment of Foot and Mouth Disease (FMD) Control Policies and Their Implementation in the Proposed FMD-Free Zone in Thailand.” 2020. Web. 27 Sep 2020.

Vancouver:

Ketusing N. Assessment of Foot and Mouth Disease (FMD) Control Policies and Their Implementation in the Proposed FMD-Free Zone in Thailand. [Internet] [Doctoral dissertation]. Virginia Tech; 2020. [cited 2020 Sep 27]. Available from: http://hdl.handle.net/10919/97581.

Council of Science Editors:

Ketusing N. Assessment of Foot and Mouth Disease (FMD) Control Policies and Their Implementation in the Proposed FMD-Free Zone in Thailand. [Doctoral Dissertation]. Virginia Tech; 2020. Available from: http://hdl.handle.net/10919/97581


Virginia Tech

2. Blumerich, Celeste Ann. Comparison of Airway Response in Recurrent Airway Obstruction-Affected Horses Fed Steamed Versus Non-steamed Hay.

Degree: MS, Veterinary Medical Sciences, 2012, Virginia Tech

Recurrent Airway Obstruction (RAO)-affected horses experience bronchoconstriction and airway inflammation in response to inhalation of irritants including hay molds. Steaming hay reduces fungal content, but the effect on the antigenic potential has not been investigated. We tested the hypothesis that RAO-affected horses develop less severe clinical disease when fed steamed versus non-steamed hay and this reduction coincides with decreased hay fungal content. Six RAO-affected horses in clinical remission were divided in two groups and fed steamed or non-steamed hay for 10 days using a two-way cross-over design. Hay was steamed using a commercial hay-steamer. Clinical assessment was performed daily. Full assessment, including airway endoscopy, tracheal mucous scores and maximal change in pleural pressure, was performed on days 1, 5, and 10. Bronchial fluid sampling and cytology were performed on days 1 and 10. Hay core samples were collected pre- and post-steaming and cultured to determine fungal and bacterial concentrations. Statistical analysis was based on data distribution and quantity and performed using SAS®. P-value <0.05 was significant. Steaming significantly decreased the number of bacterial and fungal colony-forming-units in hay. Horses fed non-steamed hay experienced a significant increase in clinical score and a trend towards airway neutrophilia, while parameters were unchanged in horses fed steamed hay. Only horses fed non-steamed hay experienced a significant increase in tracheal mucous score. Horses fed steamed hay gained significantly more weight compared to horses fed non-steamed hay, even though the amount of hay consumed not greater on a dry matter basis. These results indicate that steaming reduces the RAO-affected horseâ s response to hay which coincides with a reduction in viable fungal content of hay. Advisors/Committee Members: Buechner-Maxwell, Virginia A. (committeechair), Pereira, Carolina Ricco (committee member), Hodgson, Jennifer L. (committee member), Scarratt, W. Kent (committee member), Wilson, Katherine E. (committee member).

Subjects/Keywords: Recurrent Airway Obstruction; Hay; Steaming; Fungus; Horses

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Blumerich, C. A. (2012). Comparison of Airway Response in Recurrent Airway Obstruction-Affected Horses Fed Steamed Versus Non-steamed Hay. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/43534

Chicago Manual of Style (16th Edition):

Blumerich, Celeste Ann. “Comparison of Airway Response in Recurrent Airway Obstruction-Affected Horses Fed Steamed Versus Non-steamed Hay.” 2012. Masters Thesis, Virginia Tech. Accessed September 27, 2020. http://hdl.handle.net/10919/43534.

MLA Handbook (7th Edition):

Blumerich, Celeste Ann. “Comparison of Airway Response in Recurrent Airway Obstruction-Affected Horses Fed Steamed Versus Non-steamed Hay.” 2012. Web. 27 Sep 2020.

Vancouver:

Blumerich CA. Comparison of Airway Response in Recurrent Airway Obstruction-Affected Horses Fed Steamed Versus Non-steamed Hay. [Internet] [Masters thesis]. Virginia Tech; 2012. [cited 2020 Sep 27]. Available from: http://hdl.handle.net/10919/43534.

Council of Science Editors:

Blumerich CA. Comparison of Airway Response in Recurrent Airway Obstruction-Affected Horses Fed Steamed Versus Non-steamed Hay. [Masters Thesis]. Virginia Tech; 2012. Available from: http://hdl.handle.net/10919/43534


Virginia Tech

3. Larson, Jennifer Lynn. The Comparison of Airway Responses of Normal Horses Fed Round Bale versus Square Bale Hay.

Degree: MS, Biomedical and Veterinary Sciences, 2012, Virginia Tech

Background – Feeding horses round bale hay (RBH) has been associated with airway inflammation. The purpose of this study was to determine if horses fed RBH for a 6-week period demonstrated more evidence of airway inflammation than horses fed square bale hay (SBH) of comparable quality. Hypothesis - The respiratory health of horses fed RBH will not differ from horses fed SBH of comparable quality. Animals – Two feeding groups of 15 healthy horses (mixed ages, breeds) from the University riding program. Methods – This was a prospective study performed during fall of 2009. At the beginning and end of a 6- week feeding trial, horses were examined (physical, upper airway endoscopic) and samples (tracheal aspirate (TA), bronchoalveolar lavage (BAL)) collected for cytology and/or bacterial/fungal culture. Hay was analyzed for nutritional value and bacterial/fungal content. Results – Horses fed RBH demonstrated an increase in pharyngeal lymphoid hyperplasia (p=0.0143) and percentage neutrophils (p=0.0078) in the TA samples post-feeding as compared to pre-feeding values. Nutritional analysis of hay and measurements of bacterial/fungal load did not differ over time and/or between hay types. Conclusions and clinical importance – The identification of airway inflammation in the horses fed RBH indicates that factors associated with the manner in which the hay is fed and consumed contribute to the development of subclinical airway inflammation. RBH affords horses continuous daily exposure to hay and as horses bury their muzzles in the bale, exposure to particulate matter is likely increased. These factors may partially explain the response in horses fed RBH. Further studies are required to confirm these predictions. Advisors/Committee Members: Buechner-Maxwell, Virginia A. (committeechair), Pleasant, Robert Scott (committee member), Hodgson, Jennifer L. (committee member), Dascanio, John J. (committee member), Witonsky, Sharon G. (committeecochair).

Subjects/Keywords: botulism; farmer's lung disease; inflammatoroy airway disease; recurrent airway obstruction; airway neutrophilia; airway inflammation; tracheal aspirate fluid; bronchoalveolar lavage fluid; fungal growth; Round bale hay; square bale hay

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Larson, J. L. (2012). The Comparison of Airway Responses of Normal Horses Fed Round Bale versus Square Bale Hay. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/43464

Chicago Manual of Style (16th Edition):

Larson, Jennifer Lynn. “The Comparison of Airway Responses of Normal Horses Fed Round Bale versus Square Bale Hay.” 2012. Masters Thesis, Virginia Tech. Accessed September 27, 2020. http://hdl.handle.net/10919/43464.

MLA Handbook (7th Edition):

Larson, Jennifer Lynn. “The Comparison of Airway Responses of Normal Horses Fed Round Bale versus Square Bale Hay.” 2012. Web. 27 Sep 2020.

Vancouver:

Larson JL. The Comparison of Airway Responses of Normal Horses Fed Round Bale versus Square Bale Hay. [Internet] [Masters thesis]. Virginia Tech; 2012. [cited 2020 Sep 27]. Available from: http://hdl.handle.net/10919/43464.

Council of Science Editors:

Larson JL. The Comparison of Airway Responses of Normal Horses Fed Round Bale versus Square Bale Hay. [Masters Thesis]. Virginia Tech; 2012. Available from: http://hdl.handle.net/10919/43464

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