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SM ISO690:2012 BOZKURT, Yalcn, VARBAN, Stepan, DOGAN, Cihan. A model validation for prediction of LW of Brown Swiss cattle to determine the most accurate prediction range. In: Știința zootehnică – factor important pentru o agricultură de tip european, 29 septembrie - 1 octombrie 2015, Maximovca. Maximovca: "Print-Caro" SRL, 2016, pp. 39-42. ISBN 978-9975-56-367-3.. |
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Știința zootehnică – factor important pentru o agricultură de tip european 2016 | ||||||
Simpozionul "Știința zootehnică – factor important pentru o agricultură de tip european" Maximovca, Moldova, 29 septembrie - 1 octombrie 2015 | ||||||
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Pag. 39-42 | ||||||
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In this study, it was aimed to evaluate a regression model developed for prediction of liveweight (LW) to determine the best possible prediction range. The data used for validation was obtained from Brown Swiss cattle grown under feedlot conditions and included the weights of animals ranging from 150 to 600 kg and were divided into 8 different weight classes at 50 kg intervals. The model used for evaluation was developed previously and based on regression of heart girth measurement with a determination coefficient of approximately R2=90%. The model generally overpredicted LW values in all weight ranges. Discrepancies were high and significant (P <0.05) at low weight ranges. However, beginning from the range 350-399 kg, discrepancies started to decrease as the weight of animals increased. The most accurate results were obtained from the range between 500-600 kg. According to the results, it can be concluded that the model does not provide very close predictions with reality when BWs of cattle were lower than 350 kg while the accuracy of the model improves as the BW increases. |
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Cuvinte-cheie Body weight, Beef cattle, model, prediction, Brown Swiss |
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<meta name="citation_title" content="A model validation for prediction of LW of Brown Swiss cattle to determine the most accurate prediction range"> <meta name="citation_author" content="Bozkurt Yalcn"> <meta name="citation_author" content="Varban Stepan"> <meta name="citation_author" content="Dogan Cihan"> <meta name="citation_publication_date" content="2016"> <meta name="citation_collection_title" content="Știința zootehnică – factor important pentru o agricultură de tip european"> <meta name="citation_firstpage" content="39"> <meta name="citation_lastpage" content="42"> <meta name="citation_pdf_url" content="https://ibn.idsi.md/sites/default/files/imag_file/39-42_51.pdf">