Petra?kien?, R., Pe?iulaitien?, N. and Jukna, V. (2011) “Crossbreeding influence on age at first calving and first lactation productivity in Lithuania bred dairy cattle”, Cuban Journal of Agricultural Science, 45(3). Available at: https://cjascience.com/index.php/CJAS/article/view/111 (Accessed: 22 November 2024).