BIOL30001 Lecture Notes - Lecture 28: Controlled Ovarian Hyperstimulation, Estrous Cycle, List Of Domesticated Animals

• School: University of Melbourne
• Department: Biology
• Course: BIOL30001
• Professor: Mark Green

Document Summary

Lecture 28 manipulating domestic animal reproduction 2. Ovulation: facilitate synchronisation of oestrus, multiple embryos for pregnancy recovery, increase twinning/multiple o spring rate, mechanisms stimulation e. g. fsh, gnrh and inhibition = immunisation with androstanedione-7-hsa (fecundin), inhibin etc. Parturition: facilitate tighter calving/lambing interval with the help from dexamethasone administration, increasingly fazed out (due to ethical implications) 4 day step down decreasing doses gnrh/hcg and arti cial insemination embryo recovery and transfer day 7. Common super-ovulation schedule: removal of cidr and adding gnrh suppresses high progestogen environment all follicles ovulate at the same time, typically 8-10 ovulations induced, producing ~5 transferable embryos. How to collect embryos = ushing uid into y- shaped catheter to cow uterus + air pump out of other catheter collection for recipient cows or freezing. Animal ivf: ai (uptake + current use) 1784 dogs, 1950s uptake, et, ivf (f = fertilisation) and ivm (m = maturation) in multiple species 1890s & 1959 rabbit, 1935 100,000s of cattle,