Thanh, N. V., Hang, P. T. ., Gioi, P. V. ., Toan, N. C. ., & Long, S. T. (2023). The Relationship Between Plasma Progesterone Concentration on Day 6 After Artificial Insemination and Pregnancy Rate of Dairy Cows in Vietnam. Tropical Animal Science Journal, 46(2), 146-150. https://doi.org/10.5398/tasj.2023.46.2.146