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Analysis of test day yield data in dairy cattle of Costa Rica
(American Dairy Science Association, 1997-06)General characteristics of milk production in Costa Rica: •Breeding schemes not fully established •Large variation in-Size of Herds -Management practices-Frequency of sampling-Breed types -Breeding schemes not established -
Comparison of the attitudes of adolescents according to sex and school level towards physical education
(Universidad Nacional, Costa Rica, 2019-10-16) -
Event-Time Analysis of Reproductive Traits in Dairy Heifers
(Animal Breeding and Genomics, WIAS, 1998-08)1. Allows the use of reproductive data from cows which have only partial information on a specific trait 2. The outcome variable corresponds to the measure of time elapsed from some starting point until an awaited event ...