Experience with a Test-Day Model

Joint Nordic Test Day Model: Evaluation Model

This paper is one of three papers describing the joint Nordic test day model for yield traits. The focus of this paper is on the evaluation models for Red Breeds, Holstein, and Jersey. Environmental effects and adjustment of heterogeneous variance are illustrated.

Genetic Analysis of Milk Yield in Iranian Holstein Cattle by the Test Day Model

Using monthly test day records the genetic parameters of Iranian Holstein cattle in first lactation were studied. Data of 277400 test-day milk records from 65320 cows and 2210 sires were analyzed by an animal random regression model using restricted maximum likelihood methodology. The model included herd-test-date, interaction between year-season of calving, days in milk (linear and quadratic) ...

Experience With Regression Test

Model Based Test Generation: An Industrial Experience

Software testing is a crucial activity to a successful software project that demands a significant effort. Aiming at improving software quality as well as to reduce the costs of testing process, we developed TaRGeT, a ModelBased Testing (MBT) tool that automatically generates test cases from use case scenarios written in natural language. In this paper we present TaRGeT and show quantitative an...

Relationship of test-day somatic cell score with test-day and lactation milk yields.

To determine the relationship of test-day (TD) somatic cell score (SCS) to TD and lactation milk yields, 1,320,590 records from Holstein first and second calvings from 1995 through 2002 were examined. All lactations had recorded yield and SCS for at least the first 4 TD. Least square analyses were conducted for yields on TD 2 through 10 within herd and cow. The model included regressions on cur...