Kettunen, Anne, and Esa A. Mäntysaari. “Estimation of Genetic Parameters for Test-Day Milk Production at Different Stages of Lactation of Finnish Ayrshire Heifers”. Agricultural and Food Science 5, no. 2 (March 1, 1996): 185–192. Accessed November 23, 2024. https://journal.fi/afs/article/view/72734.