Method for detecting number and quality of ewe embryos

The invention relates to a method for detecting the number and quality of ewe embryos. The method comprises the following steps: collecting and separating ewe blood on the sixteenth day after ewe hybridization; the method comprises the following steps: inserting sheep interferon anti-luteolytic factor IFN-t and follicle stimulating hormone FSH detection test paper into serum for 5-10 seconds, and 15-18 minutes later, if the test paper control line C does not develop color, the detection line T1 or/and T2 develop color, and the detection is invalid; the quality control line C develops color, the detection line T1 or T2 does not develop color, and detection is carried out every other day; the quality control line C and the detection lines T1 and T2 have the following color development comparison; when IFN-t is less than 1ng/ml and FSH is greater than or equal to 5mIU/ml, empty pregnancy is carried out; the IFN-t is greater than or equal to 10ng/ml, and the FSHlt is 5 mIU/ml of hypogalactia; the IFN-t is greater