10 research outputs found

    Structural Relationships for National and Regional Production of Beef Calves

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    Notable changes have occurred in recent years that have produced basic changes in the beef industry. Structural relationships that existed for the producer-feeder are not necessarily significant in the operation of the cow-calf operator or the feed-lot operator. Structural economic models, which also can be used for forecasting, will be developed for the number of beef calves born in the United States and by specific homogeneous regions of production. The economic models will be tested for their ability to forecast the number of beef calves born during specific time periods. There has been a steady upward trend in both beef production and consumption from 1923 to 1963.The price of beef has risen relative to the general price level. The specific objectives of this study are: to determine the beef calf production in the United States by specific homogeneous geographical regions, to develop structural economic models for the number of beef calves born in the United States. The data will be taken from published reports by the United States Department of Agriculture. No accepted criteria were available for the breakdown of geographic areas for the production of beef calves. Therefore, the procedure was largely arbitrary

    Structural Relationships for National and regional Beef Cattle Production

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    Changes have occurred in recent years which have produced changes in the beef industry. Structural relationships that existed for the producer-feeder are not necessarily important in the operation of the cow-calf operator or the feed-lot operator. Because of these changes, a more thorough knowledge of the supply response of a small regional breakdown of the beef cattle industry should be available to farmers, econmists, outlook workers and policy makers in the agricultural industry. The study examines cow-calf operations and feed-lot operations to investigate U.S. beef calf production and develop an economic model for number of beef calves produced by region in the U.S

    Orderly Production and Marketing in the Beef-Pork Sector

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    This study will present economic models for analyzing temporal equilibrium positions for the beef-pork sector. The issues of spatial distribution, storage, and meat forms will not be directly analyzed. Grade and yield changes for various carcass classes will, however, be implied in the carrying costs of the animal. The models will be designed such that a number of different factors that affect the production and marketing of beef and pork can be analyzed simultaneously

    Orderly Production and Marketing in the Beef-Pork Sector

    Get PDF
    This study will present economic models for analyzing temporal equilibrium positions for the beef-pork sector. The issues of spatial distribution, storage, and meat forms will not be directly analyzed. Grade and yield changes for various carcass classes will, however, be implied in the carrying costs of the animal. The models will be designed such that a number of different factors that affect the production and marketing of beef and pork can be analyzed simultaneously

    An examination of polygenic score risk prediction in individuals with first-episode psychosis

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    Background Polygenic risk scores (PRSs) have successfully summarized genome-wide effects of genetic variants in schizophrenia with significant predictive power. In a clinical sample of first-episode psychosis (FEP) patients, we estimated the ability of PRSs to discriminate case-control status and to predict the development of schizophrenia as opposed to other psychoses. Methods The sample (445 case and 265 control subjects) was genotyped on the Illumina HumanCore Exome BeadChip with an additional 828 control subjects of African ancestry genotyped on the Illumina Multi-Ethnic Genotyping Array. To calculate PRSs, we used the results from the latest Psychiatric Genomics Consortium schizophrenia meta-analysis. We examined the association of PRSs with case-control status and with schizophrenia versus other psychoses in European and African ancestry FEP patients and in a second sample of 248 case subjects with chronic psychosis. Results PRS had good discriminative ability of case-control status in FEP European ancestry individuals (9.4% of the variance explained, p < 10−6), but lower in individuals of African ancestry (R2 = 1.1%, p = .004). Furthermore, PRS distinguished European ancestry case subjects who went on to acquire a schizophrenia diagnosis from those who developed other psychotic disorders (R2 = 9.2%, p = .002). Conclusions PRS was a powerful predictor of case-control status in a European sample of patients with FEP, even though a large proportion did not have an established diagnosis of schizophrenia at the time of assessment. PRS was significantly different between those case subjects who developed schizophrenia from those who did not, although the discriminative accuracy may not yet be sufficient for clinical utility in FEP

    Measuring Efficiency in the Beef-Pork Sector by Price Analysis

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    The price structure of the beef-pork sector from the retail level back to the primary production level is evaluated in order to identify areas of inefficient performance. Results indicated efficient pricing performance between the slaughter and the retail levels. Results between the ranch and feedlot levels indicated a weak and distorted price structure. This appeared to be due to the inability of the price system to serve both as a mechanism of trade and as a signal for the organization and timing of future production

    Let's take a Look at Organic Gardening

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    Zinc

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