Conversion formulae for breed: Simmenthal Conversion formulae for: Switzerland (on black & white base) 31-03-2026 Formulae for PRODUCTION milk yield : NLD = -3311.2219 + 1.4100 * CHE fat yield : NLD = -133.1677 + 1.3149 * CHE protein yield : NLD = -110.2847 + 1.5291 * CHE Formulae for UDDERHEALTH somatic cell score : NLD = 63.4358 + 0.3473 * CHE udder health : NLD = 65.6889 + 0.3588 * CHE