Shiraz University Iran Agricultural Research 1013-9885 01 1 1971 09 23 response of lactating karakul ewes to two levels of exogenous estradiol 17.B along with progesterone and pregnant mare serum for induction of fertile estrus at early postpartum response of lactating karakul ewes to two levels of exogenous estradiol 17.B along with progesterone and pregnant mare serum for induction of fertile estrus at early postpartum 21 26 4699 10.22099/iar.1971.4699 EN N. Sefidbakht M. Mokarechian K. Ghorban Journal Article 2018 01 08 https://iar.shirazu.ac.ir/article_4699_bf6ea2c8cda1b2e8e08c12f60c379e76.pdf