منابع مشابه
Comparison of Ordinary and Restricted Selection Indices on Genetic Gain of Body Weight in Iranian Moghani Sheep
The effect of ordinary and restricted selection indices on body weight at different ages changes in birth weight of Iranian Moghani sheep was studied. Traits in the aggregate genotype were birth weight (BW), body weights at 3 (BW3) and 12 months of age (BW12). Two ordinary selection indices (I1 and I2) and two restricted selection indices (R1 and R2) were constructed. BW and BW3 were included i...
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In addition to learning new knowledge, a system must be able to learn when the knowledge is likely to be applicable. An index is a piece of information which, when identiied in a given situation, triggers the relevant piece of knowledge (or schema) in the system's memory. We discuss the issue of how indices may be learned automatically in the context of a story understanding task, and present a...
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To understand the different selection procedures used in Germany it is necessary to explain the structure of pig breeding and production. The commercial fattening pigs are either produced by traditional herdbook organisations or by commercial breeding companies. While in Bavaria 90 % of all fattening pigs are single crosses with Pietrain as sire and Landrace as dam, in the northern part of Germ...
متن کاملGenetic analysis of absolute growth measurements, relative growth rate and restricted selection indices in red Angus cattle.
Performance records on 41,184 Red Angus cattle were analyzed and estimates of parameters calculated for absolute growth rate, relative growth rate and restricted selection indices. Heritability estimates for birth weight, 205-d weight, 365-d weight and postweaning gain were .46 +/- .02, .39 +/- .02, .40 +/- .02 and .36 +/- .02, respectively. Heritability estimates for preweaning, postweaning an...
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The fault current levels through the electric devices have a significant impact on failure probability. New fault current results in exceeding the rated capacity of circuit breaker and switching equipments and changes operation characteristic of overcurrent relay. In order to solve these problems, SFCL (Superconducting Fault Current Limiter) has rising as one of new alternatives so as to improv...
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ژورنال
عنوان ژورنال: Genetics Selection Evolution
سال: 1997
ISSN: 0999-193X
DOI: 10.1051/gse:19970206