For estimation of dominance effects and dominance variance, the inverse of a dominance relationship matrix is required. Dominance effects can be partitioned into sire x dam or sire x maternal grandsire subclass effects that are inherited and residuals within subclass that are not inherited. The subclass effects have immediate use in predicting performance of offspring from prospective matings. ...

1.0 Introduction Over the past decade, members of the Information Retrieval Lab have designed, developed, and deployed a variety of information retrieval systems. A central theme for all of our systems was the integration of structured data and text. One of our more recent efforts, SIRE, a Scalable Information Retrieval Engine [Grossman97, Grossman98, Lundquist99] is the focus of this paper. Fo...

Estimates of genetic parameters resulting from various analytical models for birth weight (BWT, n = 4,155), 205-d weight (WWT, n = 3,884), and 365-d weight (YWT, n = 3,476) were compared. Data consisted of records for Line 1 Hereford cattle selected for postweaning growth from 1934 to 1989 at ARS-USDA, Miles City, MT. Twelve models were compared. Model 1 included fixed effects of year, sex, age...

Additive and dominance genetic variances were estimated for milk and fat yield in Canadian Holsteins using deriva-tivefree REML procedures. Traits were analyzed under two sire and dam models differing in assumptions on the data structure. Within herd, dam relationships were first defined to be hierarchical within sire to estimate the two genetic variances, assuming no maternal, epistatic geneti...

________________________________________________________________________________ Abstract The objectives of the study were to estimate genetic parameters for stayability in the South African Angus cattle and to compare the sire and animal threshold models. Data and pedigree information were obtained from the Integrated Registration and Genetic Information System of South Africa. Stayability was...

A Complementary and Alternative Medicine digital library, called SIRE-MED, is now available at the NIH Center for Complementary and Alternative Medicine. This effort supports both novice and advanced users. Queries are issued using either Boolean expressions of Mesh terms or using natural language. Canned queries are also available. We describe the underlying architecture and implementation of ...

Evaluations that analyze first and later parities as correlated traits were developed separately for calving ease (CE) from over 15 million calving records of Holsteins, Brown Swiss, and Holstein-Brown Swiss crossbreds and for stillbirth (SB) from 7.4 million of the Holstein CE records. Calving ease was measured on a scale of 1 (no difficulty) to 5 (difficult birth); SB status was designated as...