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Full-Text Articles in Agriculture
Life Cycle Assessment Of Alternative Swine Management Practices, Prathamesh Avadhut Bandekar
Life Cycle Assessment Of Alternative Swine Management Practices, Prathamesh Avadhut Bandekar
Graduate Theses and Dissertations
Life Cycle Assessments (LCAs) are quantitative analyses of complex systems for evaluation of impacts and risk associated with management decisions. LCAs can be effective tools for determining comparative advantages of management strategies across specific impact concern. In this study, life cycle assessments of pork production management alternatives was performed. The alternative management practices included in this study were production of entire males (boars), use of pens for gestation housing, immunocastration, production without growth promoting antimicrobials, production without growth promoting and preventive antimicrobials, and production without ractopamine. These LCAs evaluated the impact of each management strategy on greenhouse gas emission (GHG), …
Poultry Production Messaging: A Content Analysis Of Three National Newspapers From 1994 To 2014, Stuart Estes
Poultry Production Messaging: A Content Analysis Of Three National Newspapers From 1994 To 2014, Stuart Estes
Graduate Theses and Dissertations
Consumers are increasingly concerned with the use of antibiotics and hormones in poultry production, and the news media is the primary way consumers gain knowledge about this subject. This study assessed articles about antibiotic and hormone use in poultry production from the New York Times, USA Today, and the Wall Street Journal from 1994 to 2014. This study employed a content analysis methodology to assess selected articles (n = 139) for key messaging about antibiotic and hormone use in poultry production, article tone, article framing, and article journalistic quality. Data gathered from key messages were assessed for emergent themes that …
Use Of Endocrine And Immune Responses As Predictors Of Bull Sperm Motility, Lydia Mitchener
Use Of Endocrine And Immune Responses As Predictors Of Bull Sperm Motility, Lydia Mitchener
Animal Science Undergraduate Honors Theses
Research has shown that immune cells increased from an immune response, and endocrine concentrations directly affect sperm characteristics (Jones and Mann, 1976; Hansson et al., 1989; Grattan et al., 2007). Previous findings show a negative relationship between leukocytes and sperm function (Jones and Mann, 1976) and prolactin and fertility (Grattan et al., 2007). On the other hand, research has shown a positive relationship between insulin-like growth factor (IGF) and sperm characteristics (Hansson et al., 1989). The objective of this study is to identify biomarkers for yearling bull sperm associated with endocrine response and activation of the immune system. Seventeen Brahman-influenced …