@article{MAKHILLJAVA20087111531,
    title = {Correlation of Breeding Value, Milk Production and Lactation Persistency Traits During Complete and Incomplete Lactation Using Random Regression Model},
    journal = {Journal of Animal and Veterinary Advances},
    volume = {7},
    number = {11},
    pages = {1405-1409},
    year = {2008},
    issn = {1680-5593},
    doi = {javaa.2008.1405.1409},
    url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2008.1405.1409},
    author = {Reza Seyed-Sharifi,Jamal Seif-Davati and},
    keywords = {Milk production and persistency,random regression model,test day records},
    abstract = {In this investigation, 29800 data related to test day of milk production from 2716 Holstein first calving and daughter from 167 sire cows were analyzed based of random regression model (RR/CF) and REML (Restricted Maximum Likelihood). Method incomplete lactating 5-90 and 5-120 days in correlations to complete lactating were 0.67 and 0.72, respectively. With lactation progress, the correlation was increased. The correlation during incomplete lactation period 5-240 days was 0.91. The correlation value for lactating persistency trait for incomplete lactating period 5-150 days were 0.68. By milk production increasement during incomplete production period of 5-240 days this value reached to 0.91. Also, this correlation for 2 month interval (3 month recording) for milk production and lactating persistency was 0.88 and 0.59, respectively. This correlation for milk production and lactating persistency in 1 month interval (2 month recording) was reached to higher than 0.90.}
    }