Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TSUTSUI Mariko and TERAI Sadataka and YAMADA Yukari and TAKESHITA Tsuyoshi and MORIYOSHI Masaharu,Measurement of Fecal Levels of Progesterone for Ascertaining the Estrus Cycle of Mexican Hairless Pigs,Nihon Yoton Gakkaishi,0913-882X,The Japanese Society of Swine Science,2007,44,3,141-143,https://cir.nii.ac.jp/crid/1390001204707829376,https://doi.org/10.5938/youton.44.141