In this snippet from his testimony on February 7 regarding SB 2331, Eric Molvar explains that the breeding population is a function of herd size minus the number of mares that have been treated with fertility control.
Section 4.4.6.3 of the WHB Management Handbook calls for a herd size of 150 to 200 animals to achieve a breeding population of at least 50 but does not mention the fertility control deduction.
The advocates won’t talk about this because they’re driving the breeding populations to zero in their quest to prove that mass sterilization is a practical alternative to motorized removal.
RELATED: What’s the Minimum Herd Size for Genetic Viability?
Western Horse Watchers Association 