The sheep egg: enzymatic removal of the zona pellucida and culture of eggs in vitro.
D000818:Animals; D001963:Bromelains / Q000494:pharmacology; D002452:Cell Count; D002455:Cell Division; D002918:Chymotrypsin / Q000494:pharmacology; D003470:Culture Media; D046508:Culture Techniques; D010450:Endopeptidases / Q000494:pharmacology*; D005260:Female; D005306:Fertilization; D010060:Ovulation; D010063:Ovum / Q000187:drug effects* / Q000502:physiology / Q000637:transplantation; D010206:Papain / Q000494:pharmacology; D011402:Pronase / Q000494:pharmacology; D012756:Sheep; D014184:Transplantation, Homologous; D014357:Trypsin / Q000494:pharmacology
D003470:Culture Media; D001963:Bromelains; D010450:Endopeptidases; D002918:Chymotrypsin; D014357:Trypsin; D010206:Papain; D011402:Pronase