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Showing 1 to 20 of 94 for “"Dairy farms"”.
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Moving Virginia Dairy Farms Toward Phosphorus Balance
Sustainability for Virginia dairy farms requires balancing phosphorus (P) imports and exports at the farm-gate level. Balancing P helps prevent further accumulation of P in farm soils through routine applications of manure, which over time contributes to surface water quality issues. The objectives …
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Forage Yield Variability on New York Dairy Farms
Dairy farms can improve their environmental footprint by feeding more homegrown forage. As a consequence higher yields will reduce feed imports and enhance nutrient use efficiency. To improve forage production, limitations to production need to be identified. While yield records can provide …
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Milking anomie: experiencing food safety on Canadian dairy farms
… structural perspective. Analyzing the Canadian dairy industry, this project seeks to answer how the legal definition of food safety impacts the production practices of farmers, and where farmers place the burden of food safety responsibility, while partially testing institutional anomie theory. …
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Labor study on Virginia dairy farms employing full time workers
Data on 376 farms were acquired from a direct mail questionnaire containing 31 questions. These farms were on a production testing program and employed one or more full time workers who spent 50% or more of their time with the herd. Characteristics on workers, farms, and working conditions were …
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Factors influencing agro-environmental regulatory compliance behaviour on Canterbury dairy farms
The Canterbury dairy industry has grown significantly in the past several decades in both the number of cows being milked and effective farming area. The industry has seen substantial growth in farm size, productivity and intensity. These increases have the potential to significantly impact the …
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Social ecological determinants of occupational zoonotic disease exposure on Colorado dairy farms
The presence of zoonotic pathogens in dairy farms is a known risk for people that work and live in these settings. People who work or live on a farm, farm visitors, service providers, and veterinarians are the most at risks of zoonotic infections. Dairy cattle operations represent a working …
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Relationship of management factors to differences in profitability among Virginia dairy farms
… personally surveyed for management information. Dairymen were questioned for 1.5 hours about milking systems and practices, feeding, reproductive and genetic aspects of breeding, calf raising and finances. Seventeen non-DHI herds were included. Objectives of the study were to assemble data that …
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Nutritional and Management Practices to Reduce Excessive Nutrient Excretion on Dairy Farms
… to reduce nutrient losses from Virginia dairy farms through nutritional and herd management practices. Ten collaborator herds were identified, all at state DHIA average or better for milk yield and days open. Baseline feed samples and ration information were collected for 2 mo and …
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Financing Low Equity Dairy Farms: An Application of Multi-Period Linear Programming Methods
Made available in DSpace on 2014-12-08T23:37:49Z (GMT). No. of bitstreams: 1 6901471.pdf: 6078979 bytes, checksum: 58b2522a974310da17654e8e4965e21d (MD5) Previous issue date: 1968
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Holstein heifer behaviors and lactating cow nutritional management for improved reproductive performance on dairy farms
… productive cows, the reproductive performance on farms declines. Poor reproductive management on farms can be costly due to decreased milk production in late lactation, higher feed costs from a longer calving interval, and more labor and supplies from multiple breedings. To investigate techniques …
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The Impact of Feed Management Software on Whole-Farm Nutrient Balance on Virginia Dairy Farms
… on agriculture production facilities, such as dairy farms. The impact of feed management software on whole-farm nutrient balance was studied on 18 dairy farms located in Virginia from 2006 to 2010. Nine farms began using the TMR Tracker feed management software in 2006 and were compared to 9 …
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A Hybrid Modeling Approach to Assess the Efficacy of Control Measures on Paratuberculosis on U.S. Dairy Farms
… losses to the industry. Each year, the U.S. dairy industry loses over 200 million dollars due to the infection. Using the cattle movement data of six California dairy farms and Johne's disease transmission data, a mathematical model was developed to determine control policies that can …
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Evaluation of best practices associated with enhanced performance in Illinois dairy farms: a dairy focus team approach
… improve efficiency and milk production, the U.S. dairy industry has faced several changes over the last years. During the last three decades milk production increased 59.4% and the total number of dairy cows and operations decreased 17% and 74%, respectively. Improvements in genetic selection and …
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From Prototype to Production: Product Development of a Modular Automated Milk Sampling Device for Conventional Dairy Farms
Milk sampling and testing is critical in the dairy industry as it provides farmers information to make accurate decisions about nutrition or medication on their cattle. Currently, the milk sampling process is both costly and labor intensive. Therefore, an automated milk sampler is developed to …
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Development of an expert system for the evaluation of reproductive performance and management of Virginia dairy farms
An expert system for dairy herd reproductive management for microcomputer was developed using an expert system shell and Turbo Pascal. A dairy extension reproductive specialist provided information for the system and empirical support was provided by research. The expert system initially examines …
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Food safety through fungal disease and mycotoxin mitigation on dairy farms: From field to feed and the rumen
Dairy producers are faced with a multitude of challenges regarding dairy cattle production. One such challenge common for cows fed whole-plant corn silage (WPCS) is the often negative effect of fungi. Fungi affect WPCS both in the field and post-harvest; and can cause serious issues for cows that …
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A Five State Survey of Heifer Management Practices on Dairy Farms and Virginia Custom Dairy Heifer Growing Operations
… surveys evaluated heifer management practices in dairy herds and custom grower operations. The NC-119 Heifer Management Survey conducted through the North Central Regional Research Project 119 included 226 Holstein and 67 Jersey herds from MN, MO, PA, VA, and WA. Mean rolling herd average for milk …
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Response of Stomoxys calcitrans and Musca domestica (Diptera: Muscidae) to Volatile Organic Compound Profiles from Ontario, Canada Dairy Farms
Stomoxys calcitrans are significant pests of dairy and beef cattle livestock facilities. Their seasonal abundance causes damage to the industry in the United States. While similar damage has been documented in Canada, the majority of the research explores population dynamics of stable flies with …
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