Effects of time of insemination relative to ovulation on pregnancy rate and embryonic‐loss rate in mares
作者： JEANINE WOODS , D. R. BERGFELT , O. J. GINTHER
DOI: 10.1111/J.2042-3306.1990.TB04306.X
关键词: Artificial insemination 、 Embryonic Loss 、 Pregnancy rate 、 Follicle 、 Andrology 、 Human fertilization 、 Pregnancy 、 Gynecology 、 Ovulation 、 Medicine 、 Insemination
摘要: The effects of pre-ovulatory and post ovulatory insemination on pregnancy rate embryonic-loss were studied in 268 mares two experiments. Within each experiment randomised within replicates as follows: to be inseminated the day follicle reached 35 mm (pre-ovulatory group), ovulation (Day 0 after 1 group). Ultrasonic diagnoses performed Days 11, 12, 13 14 (Experiment 1) 13, 14, 15, 20 40 2). Combined for experiments, rates different (P less than 0.01) among three groups. For Experiment 2, group was lower 0.05) 4 days or more before up 3 ovulation. Pregnancy Day In detected by examinations every 6 h; greater h at 18 24 h. No pregnancies occurred when 30 mean first detection embryonic vesicle 0.0001) Diameter averaged over 11 15 also differed groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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