Survival estimates (± se) for doe breeds using alternative culling protocol of removal after first reproductive failure. Boer differ (P < 0.001) from Kiko and Spanish for the survival curve over 6 years of production and for the stayability rate at each year of possible presence in the herd. Does in Year 1 were approximately 2–3 years of age. Does reaching Year 6 would have been approximately 7–8 years of age.
Pellerin and Browning BMC Veterinary Research 2012 8:136 doi:10.1186/1746-6148-8-136