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It is known that insulin-like growth-factor I (IGF-I) promotes early embryonic development from the morula to the blastocyst stage in rabbits. Therefore we used autoradiography to investigate whether IGF-I binds to preimplantation embryos and its coats. From Day 3 after mating onwards, a clear binding of IGF-I to the embryos was observed. There was no difference in binding to the embryoblast or...
We studied effects of aging of hens on some physio-chemical parameters of uterine fluid taken at 2 stages of the ovulatory cycle (12 and 18 h after the oviposition) and of uterine fluid properties as a semen diluent in vitro at 41°C. The volume, pH, osmotic pressure, Na+, K+, Ca2+, glucose and total protein concentrations of uterine fluid were measured. The percentage of motile spermatozoa and the...
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