Iceland urged to ban ‘blood farms’ that extract hormone from pregnant horses"Iceland is home to about 80,000 Icelandic horses, 5,383 of which are used as “blood mares”. There are 119 blood farms operating in the country. .. In Germany, 6.4m single doses of PMSG (Pregnant Mare Serum Gonadotropin) – the equivalent of about 32,000 litres of blood – were given to sows between 2016 and 2019, according to the federal ministry of food and agriculture.
PMSG can be obtained legally in the UK from a registered vet, with products available including vaginal sponges for sheep, which induce early lambing, with advertised benefits such as producing lambs “at the optimum time for autumn sales”."