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Postweaning records were collected on 7,428 bulls completing gain tests from 1981 to 1994 at Oklahoma BEEF, Inc. Central Bull Test Station. A total of 3085 bulls (A=806 Angus, B=497 Brangus, H=533 Hereford, P=601 Polled Hereford, C=399 Charolais and L=249 Limousin) completed the 140-day test from 1981 to 1986. From 1987 to 1994, performance data were collected on 4343 bulls (A=2384 Angus, B=487...
In this paper the taxonomy of some previously reported taxa as Cercospora apii s.lat. in Iran, is discussed and some new records are listed. Cercospora species on Abelia grandiflora (C. deutziae), Erythrina crista-galli (C. erythrinicola), Euphorbia heterophylla (C. pulcherrimae) and Zanthedeschia aethiopica (C. richardiicola) are new for mycobiota of Iran. Cercospora iridis which was previousl...
learning-oriented assessment seeks to emphasise that a fundamental purpose of assessment should be to promote learning. it mirrors formative assessment and assessment for learning processes. it can be defined as actions undertaken by teachers and / or students, which provide feedback for the improvement of teaching and learning. it also contrasts with equally important measurement-focused appro...
the objective of this study was to analyze the association of somatic cell score (scs) with milk, fat and protein yields across parities. records of production traits and somatic cell counts (scc) from first, second and third parity that were collected by the animal breeding center of iran from 1993 to 2010 were used.all animals were grouped into six classes according to scc and production trai...
Bivariate random regression models were used to estimate variance components of test-day milk yields (TDMY) in the first and second lactations of Iranian buffaloes. Data included 10,133 TDMY records from 862 Iranian buffaloes for first lactation and 786 for second lactation which were collected from 1993 to 2011 by the animal breeding centre of Iran. The models of analysis included the fixed ef...
there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...
The effect of reducing the frequency of offi cial milk recording and the number of recorded samples per test-day on the accuracy of predicting daily yield and cumulative 305-day yield was investigated. A control data set consisting of 58 210 primiparous cows with milk test-day records every 4 weeks was used to investigate the infl uence of reduced milk recording frequencies. The accuracy of pre...
Introduction: Quality of patients care is directly linked with medical documentation quality, because in all medical professions related to patient care, quality of decisions depends on information quality. Thus, in this study two main populations that offer medical care in country, Ministry of Health (MoH) and Social security Organization, were selected to measure access rate, and level of med...
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