1. Abe H, Masuda Y, Suzuki M. 2009. Relationships between reproductive traits of heifers and cows and yield traits for Holsteins in Japan. Journal of Dairy Science 92, 4055-4062.
2. De Vries MJ, Veerkamp RF. 2000. Energy balance of dairy cattle in relation to milk production variables and fertility. Journal of Dairy Science 83, 62-69.
3. Hagiya K, Hayasaka K, Yamazaki T, Shirai T, Osawa T, Terawaki Y, Nagamine Y, Masuda Y, Suzuki M. 2017. Effect of heat stress on production, somatic cell score and conception rate in Holsteins. Animal Science Journal 88, 3-10.
4. Pereira JAC, Suzuki M, Hagiya K. 2001. Prediction of 305 days milk production from early records in dairy cattle using an empirical Bayes method. Asian-Australasian Journal of Animal Science 14, 1511-1515.
5. R Core Team. 2017. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria; [cited 23 February 2017].Available from URL https://www.R-project.org/