Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 65 for “"Cow/Calf"”.
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Economic Pasture-Based Cow-Calf Systems for Appalachia
… beef cattle, and economics components within the cow-calf sector of pasture beef production, and presents implications of their interplay for the vitality of the whole system. Samples of forage DM mass and CP, ADF, NDF, and ash contents in each paddock of a rotational stocking system were …
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Financially Optimal Culling Strategies for Western Canadian Cow-Calf Producers
Canadian cow-calf producers often experience slim margins and focus on reducing costs to maximize their economic profit. This study aims to identify financially optimal breeding female culling strategies using production and financial data from 16 ‘typical farms’ in the Canadian Cow-Calf Cost of …
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Analysis of alternative coordination mechanisms for the Saskatchewan cow-calf sector
… beef industry where the focus was on the cow-calf sector. The study was based on primary data collected from 185 cow-calf producers through a mail survey. The results indicate that the Saskatchewan cow-calf sector is characterized by a large number of small producers with a herd size …
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Modifying a Cow-Calf Biophysical Simulation Model for Analyses of Alternative Enterprises
<p>Cow-calf producers in the United States, tasked with providing beef calves for the beef industry, have had a multitude of difficulties to overcome in recent years. Producers in northwest Arkansas were negatively impacted by high hay prices coupled with low beef cattle market prices due to severe …
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Evaluation of Long-Acting Eprinomectin Compared to Conventional Anthelmintics in Cow/Calf Production
… were greater (P0.20) between CON and treated cows. Day 14 BCS tended (P=0.07) to be greater for CON compared to treated cows. Also, BCS was greater (P=0.01) and hair coat score was lower (P</p>
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Economic analyses of the effects of calving season on beef cow-calf-forage systems
Important implications of the study are: beef cow-calf production is competitive over a wide range of beef prices and it may increase farm returns to feed small amounts of corn silage rather than grow additional pasture even when the weaned steer calf-corn ratio is quite low.
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Evaluating Economic and Environmental Impacts of Changing Herd Sire Genetics on Arkansas Cow-Calf Operations
… of changing sires, and thus bull genetics, on cow-calf operations of varying land and herd sizes in the state of Arkansas. A 2012 Across-Breed EPD table, adjusted to the Angus breed, was used to estimate breed sire effects on birth weight and weaning weight of the herd's offspring (Kuehn and …
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Biosecurity and risk analysis for cow-calf enterprises: a simulation model for Bovine Viral Diarrhea Virus
… for Bovine Viral Diarrhea Virus (BVDV) on cow-calf farms. Where possible, risk distributions were defined in the course of a critical literature review covering all publications since 1990 relevant to BVDV on cow-calf farms. The prevalence of persistent infections (PIs) in adult cows was …
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Modeling Greenhouse Gas Emissions and Net Return Implications for Cow-Calf Producers in the Ozark Highlands
<p>Cow-calf producers in the Ozark Highlands region are under continuous pressure to improve economic efficiency. Additionally, estimating greenhouse gas (GHG) emissions from cow-calf and forage production processes may become increasingly important as policy makers seek to mitigate or reduce …
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Financial Structure of Corn -Belt Cow -Calf Enterprises: The Impact of Alliance Participation on Producer Financial Position
… affects the financial position of Corn-belt Cow-Calf producers. The study finds the risk-return theory to be intact as income variability rises with the added expected returns of alliance participation. Additionally, the results suggest that the improved expected return has a strong impact on …
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Evaluation of alternative forage species to reduce risk for cow-calf production systems in the Appalachian region
Optimizing forage productivity is essential to reduce pasture seasonality and ensure available forage to meet the nutritional needs of livestock. This study explores the risk-buffering ability of warm-season forages to fill the summer slump gap in production of cool-season grasses. Small plot …
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Prevalence of antibodies to Bovine Leukemia virus, Neospora caninum and risk factors, and biosecurity practices in beef cow-calf herds in Canada.
A total of 4,778 cows from 179 herds were tested for antibodies to N. caninum using a commercially available ELISA. Neospora caninum herd-level seroprevalence ranged from 25.0% to 75.9% (a herd was considered positive with ≥ 2 cows testing positive). The true cow prevalence was estimated as 5.2% …
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Estimating diagnostic test performance and examining effective testing strategies for the control of Johne's disease in western Canadian cow-calf herds
… disease is of increasing importance to the beef cow-calf sector due to the ongoing consolidation of cow-calf herds in western Canada resulting in greater risk of infectious disease transmission. This thesis aims to address a gap in the current literature related to the performance of diagnostic …
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Effects of housing beef cow-calf pairs on dry lot vs pasture on cow performance as well calf performance and behavior through feedlot receiving
… were to analyze the effects of housing cow-calf pairs in dry lots (DL) or pasture (PAST) on cow performance and reproduction and calf performance and behavior through the receiving phase. Simmental × Angus (n = 108; 87 ± 11.5 d postpartum) spring-calving cows were stratified by age, BW, …
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Profitability Analysis of Forage Based Beef Systems in Appalachia
… is livestock production, particularly beef cow calf operations. However; topography and land holding patterns have resulted in a majority of small farms operating part time on less than 150 acres. These farms, while abundant, are not necessarily profitable. Management intensive grazing has …
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Effects of housing cow-calf pairs on drylot or pasture on cow performance and reproduction as well as calf performance and behavior through feedlot receiving
… were to analyze the effects of housing cow-calf pairs in drylots (DL) or pasture (PAST) on cow performance and reproduction as well as calf performance and behavior through the feedlot receiving. Simmental × Angus (2 yr; 108/yr; 81 ± 15.3 d postpartum) spring-calving cows were stratified …
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Effects of dietary roughage inclusion in limit-fed rations in a confinement cow-calf system on cow performance, hygiene, and behavior as well as calf performance through feedlot receiving
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Comparison of buffered grazing systems for beef cattle
… a buffer grazing system, thirty crossbred beef cows and their calves were randomly assigned to one of two grazing systems replicated twice over three years of the experiment. Each replication of the rotational system was stocked with 8 cow/calf pairs while the continuous system was stocked with …
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