Chandrasekaran, S. KannanRao, R. GovindaTANUVAS2019-12-242019-12-241992-01http://krishikosh.egranth.ac.in/handle/1/5810138788TNV_IVJ_69_Jan1992_53-56Pregnancy, especially in dairy cattle, can he detected as early as twenty one days after the dog of insemination by the level progesterone present in milk.en-USVeterinary ScienceVeterinary PhysiologyArticle