- Origin of data. USDA-CDCB = Domestic production proof; USDA/HA = Domestic Type proof; MACE/M = Interbull
- Proof month/year
- Daughters and herd with lactation records that were used in this evaluation. Reliability accuracy increases with more daughters.
- Net Merit (NM$) measures the expected profit that offspring will provide over its lifetime. The higher the number, the more potential profit.
- Dairy Wellness Profit Index® (DWP$®) a multi-trait selection index which includes production, fertility, Type, longevity and wellness traits, including Polled test results. The higher the number, the higher the expected profitability.
- Type (PTAT), UDC (Udder Composite), FLC (Feet & Legs Composite) and BWC (Body Weight Composite). The higher number is better for all traits.
- Total Performance Index® (TPI®) is a multi-trait index calculated combining production, Type, longevity and fertility into a single value. The higher, the better.
- Somatic Cell Score (SCS) provides an indicator of mastitis in a bull's daughters based on the direct measure of somatic cells in milk samples. Lower is better.
- Mastitis (MAS) resistance indicates how resistant a bull’s daughters are to mastitis. Higher values are preferred. Evaluations are expressed in percentage points of resistance different from breed average.
- Productive Life (PL) is the measurement of the number of months a cow is expected to stay in the milking herd. Higher is more favorable.
- Livability (LIV) is an evaluation of the percent of the bull’s daughters that remain alive in the milking herd until they are culled. Higher values are preferred.
- Daughter Pregnancy Rate (DPR) indicates the pregnancy rate difference expected in lactating daughters of a bull. A higher value is preferred.
- Heifer Conception Rate (HCR) is a measure of a daughter’s ability to become pregnant when bred prior to first calving. These evaluations are expressed as percentage points of conception rate and higher values are preferred.
- Cow Conception Rate (CCR) evaluates a lactating daughter’s ability to conceive when bred. Expressed in conception rate percentage points, higher values are better.
- Fertility Index (FI) combines several reproductive components into one overall index: ability to conceive as a maiden heifer (HCR), ability to conceive as a lactating cow (CCR) and a cow's overall ability to start cycling again, show heat, conceive, and maintain a pregnancy (DPR).
- Sire Calving Ease (SCE) measures the tendency of calves to be born more or less easily. Expressed as a percent of difficult births in first-calf heifers, the lower the value, the better.
- Wellness Trait Index® (WT$®) is a combination of the six Zoetis cow wellness traits along with Polled to directly estimate the additional dollars these traits contribute to overall profit. A higher number is desired.
- Daughter Calving Ease (DCE) measures the ability of a cow to deliver a calf easily. Evaluations are expressed as percent difficult births in first calf heifers. The lower the value, the better.
- Daughter Stillbirth (DSB) measures the ability of a bull's daughters to deliver a live calf. Expressed as a percent of still born calves, the lower the value, the better.
- Calf Wellness Index™ (CW$™) combines evaluations for calf livability, respiratory disease and scours to directly estimate the additional dollars these traits contribute to overall profitability. A higher number is preferred.
- Herd Health Profit Dollars® (HHP$®) index is an innovative tool to help herds achieve longer-living cows that return the most profit to the dairy.
- Sire Conception Rate (SCR) is an evaluation of a sire's semen fertility. A higher number is preferred.
Standard Transmitting Ability (STA) block. Displays the STA value for each of the 18 traits. STA is a bull's PTA value on a standardized scale, showing if a bull is more extreme in one trait than another.
