Guthrie H D, Polge C
J Reprod Fertil. 1978 Mar;52(2):271-3. doi: 10.1530/jrf.0.0520271.
Oestrus was induced 4-7 days after treatment with Cloprostenol (ICI 80,996) in gilts between 12 and 40 days pregnant. Fertility at this synchronized oestrus was good (85%).