The objective of this study was to identify the best random regression model using Legendre orthogonal polynomials to evaluate Alpine goats genetically and to estimate the parameters for test day milk yield. On the test day, we analyzed 20,710 records of milk yield of 667 goats from the Goat Sector of the Universidade Federal de Viçosa. The evaluated models had combinations of distinct fitting ...

BACKGROUND The reported yield of methylene-blue (MB) chromoendoscopy targeted biopsy in detecting specialized intestinal metaplasia (SIM) and, more importantly, dysplasia in patients with Barrett's esophagus (BE) has shown variable results. OBJECTIVE To perform a meta-analysis of published studies for assessment of the diagnostic yield of techniques of chromoendoscopy compared with convention...

Stuart J. Allen Reference: Jones, Philip C., Timothy J. Lowe, Rodney D. Traub, Greg Kegler. 2001. Matching Supply and Demand: The Value of a Second Chance in Producing Hybrid Seed Corn. Manufacturing & Service Operations Management. Vol. 3, No. 2, pp. 122-137. Introduction This is an attempt to fathom the approach of Jones, et al to the problem stated in the title. We assume that the reader has...

This study evaluated different female-selective genotyping strategies to increase the predictive accuracy of genomic breeding values (GBVs) in populations that have a limited number of sires with a large number of progeny. A simulated dairy population was utilized to address the aims of the study. The following selection strategies were used: random selection, two-tailed selection by yield devi...

With the objective of evaluating measures of milk yield persistency, 27,000 test-day milk yield records from 3362 first lactations of Brazilian Gyr cows that calved between 1990 and 2007 were analyzed with a random regression model. Random, additive genetic and permanent environmental effects were modeled using Legendre polynomials of order 4 and 5, respectively. Residual variance was mod...