Browsing by Author "Keefe, Thomas, committee member"
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Item Open Access Assessment of the introduction and spread of highly pathogenic avian influenza (H5N1) in Thailand: application of market chain analysis of poultry and the use of community-based disease prevention strategies(Colorado State University. Libraries, 2013) Limhapirom, Patchara, author; Salman, Mo, advisor; Keefe, Thomas, committee member; Wongsathapornchai, Kachen, committee memberAn analysis of the market chain and trade pathway for the small poultry production system was conducted in Ban Klang Subdistrict, Nakhon Phanom Mueang District, Nakhon Phanom Province, Thailand. The aim of the study was to determine the risk of highly pathogenic avian influenza (HPAI/H5N1) introduction and transmission along the poultry market chain, and then apply a community-based approach to prevent the introduction and spread of H5N1 along the identified chain. The focus was on the layer market chain because an outbreak of HPAI was reported 24 July 2006 at a layer farm in Banklang Subdistrict. Six human patients were suspected to be infected with Avian Influenza virus (AI), but no cases were reported after the surveillance was initiated (MOPH 2006). A cross-sectional analysis method was used to identify the poultry market chain and assess the risk of introduction and transmission of AI along that chain. For linking actors along the poultry market chain, the snowball sampling method was used. The data were collected by using a structured questionnaire and applying focus discussion group activity (FDG), which is part of the community-based approach, to the high-risk actors in the poultry market chain. Participants' level of knowledge, attitude and practice behaviors (KAP) regarding AI was assessed, as well as the risk of AI in the poultry market chain. From three layer product pathways—eggs, spent hens and disposal of layer manure—the findings demonstrated that the spent hens and disposal of layer manure are higher-risk pathways for the introduction and transmission of HPAI than the egg products pathway. The farmers (producers) have the highest risk of contracting the AI virus because of their constant proximity to poultry, while traders have the highest risk of transmitting the AI virus along the layer market chain as their business requires moving from farm to farm. A survey of KAP regarding AI showed that the majority of farmers had a high level of knowledge and positive practice behaviors. This was compared to traders where more than half had only moderate to low knowledge, and positive practice behaviors. The majority of farmers and traders, however, had a positive attitude toward policies of prevention and control of HPAI through a surveillance system in their community. The FDG demonstrated that other actors expected an efficient HPAI prevention system at the producer level. The results of this study showed that community involvement in an HPAI surveillance system should be considered for all related actors in the poultry market chain. In order to be effective, the policies should be followed and periodically monitored for compliance.Item Open Access Evaluation of strategies for eradication of Aujeszky's disease (Pseudorabies) in commercial swine farms in Chiang-Mai and Lampoon provinces, Thailand(Colorado State University. Libraries, 2010) Ketusing, Naree, author; Salman, Mo, advisor; Olea-Popelka, Francisco, advisor; Keefe, Thomas, committee memberSeveral strategies for eradicating Aujeszky's disease (Pseudorabies) in Chiang-Mai and Lampoon Provinces, Thailand, were compared using a computer simulation model, the North American Animal Disease Spread Model (NAADSM). The duration of the outbreak, the number of infected herdss and the number destroyed herds were compared during these simulated outbreaks. Destruction, zoning for restricted movement and improved detection and vaccination strategies were studied. Destruction was found to be the most effective method to eradicate Pseudorabies. Although zoning and ring vaccination did not influence this model, the recommendations from this study are to apply both destruction and three zone (3, 8 and 16 kilometers) restricted movements along with enhanced detection and a 16 vaccination ring.Item Open Access Increasing fruit and vegetable consumption in grade-school children(Colorado State University. Libraries, 1997) Ryan, Linda DeBell, author; Jennifer Anderson, advisor; Bechtel, Peter J., advisor; Kendall, Patricia, committee member; Keefe, Thomas, committee member; Jansen, Duane, committee memberDiets rich in fruits and vegetables have many health benefits. Nutrients in fruits and vegetables such as vitamins, minerals, and fiber help protect individuals from certain cancers and cardiovascular disease. Children in our nation are not meeting the national health objectives or recommendations to eat plenty of fruits and vegetables. This research assessed whether the provision of classroom nutrition education on the benefits of eating fruits and vegetables and providing more fresh fruits and fresh vegetables in the school lunch program increased consumption by grade-school children. This research was completed in three parts. The purpose of part one (The Nutrition Education Intervention Study) was to determine if providing nutrition education to grade-school children and the community increased fruit and vegetable consumption. In this study a nutrition education program was given to the grade-school children and community of Holyoke (experimental group). The effects of the nutrition education intervention were compared to the control group (i.e., the grade-school children and community of Haxtun), which received no intervention. A nutrition education program was developed and designed as a hands-on education program for the children and for the community. The intervention included nutrition education materials, demonstrations, and activities on increasing the consumption of fruits and vegetables and good nutrition. Fruit and vegetable consumption was measured by a 24-hour food recall (children only) and a pre- and post-questionnaire for the children and community. The results showed mean fruit and vegetable consumption increased by 1.37 servings per day (from 2.45 to 3.82) among the grade-school children using the 24-hour food recall assessment method and 0.93 (3.93 to 4.86) using a pre/post self-reported questionnaire (both at p[less than or equal to]0.05 ). The community's mean fruit and vegetable intake increased by 0.66 servings per day (3.28 to 3.94) from the pre to post questionnaire (p[less than or equal to]0.05 ). The purpose of part two (The Fresh Fruit and Vegetable Intervention Study) was to determine if providing quality fresh fruits and fresh vegetables increased consumption by grade-school children. In this study the Department of Defense (DOD) provided fresh fruits and vegetables to schools within Colorado. The schools receiving the fresh fruits and vegetables (experimental group) were compared to schools not receiving fresh produce (control group). The children in the experimental group were offered a variety of high quality of fresh fruits and vegetables in the school cafeteria with their school lunches. Fruit and vegetable consumption was measured by subtracting plate waste from the beginning weight for each fruit and vegetable served. The results were as follows: 1. The experimental group took on an average 2. 70 ounces combined fruits and vegetables per child, the control group took 3.14 ounces per child (p[greater than or equal to]0.05). 2. The children in the experimental group consumed a greater percentage (73%) of fruits and vegetables than the control group (61 %) (p[less than or equal to]0.05). 3. The children in both groups consumed more fruits than vegetables. In part three, the results of the two studies were completed. The results showed that there was no difference in the two approaches, both interventions increased consumption of fruits and vegetables in the grade-school children.