Kaewlamun W, Chayaratanasin R, Virakul P, Ponter AA, Humblot P, Suadsong S, Tummaruk P, Techakumphu M. Differences of Periods of Calving on Days Open of Dairy Cows in Different Regions and Months of Thailand. TJVM [Internet]. 2013 Jun. 26 [cited 2024 May 19];41(3):315-20. Available from: https://he01.tci-thaijo.org/index.php/tjvm/article/view/9558