Date of Evaluation	Trait	PTA	Reliability
Sep 2025	Calving Difficulty(Births Requiring Considerable Assistance; % 3 & 4) Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	Low 7.3% 2.7%	98% ( V High) 99% ( V High)
May 2025	Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4) Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	Low 7.4% 2.7%	98% 99%
Sep 2025	Birth Size (Progeny expected to be born large or extra large)	20.6%	97%
May 2025	Birth Size (Progeny expected to be born large or extra large)	20.8%	97%
Sep 2025	Birth Weight (Expected progeny birth weight)	43.6 kg	93%
May 2025	Birth Weight (Expected progeny birth weight)	43.6 kg	93%
Sep 2025	Gestation (Days between conception and birth)	-2.81 days	99%
May 2025	Gestation (Days between conception and birth)	-2.82 days	99%
Sep 2025	Mortality (Calves dead at or soon after birth)	-0.68	99%
May 2025	Mortality (Calves dead at or soon after birth)	-0.69	99%
Sep 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	5.19%	98%
May 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	5.13%	98%

Date of Evaluation	Trait	PTA	Rel. %
Sep 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	Low 7.3% 2.7%	98% ( V High) 99% ( V High)
May 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	Low 7.4% 2.7%	98% 99%
Sep 2025	Birth Size	20.6%	97%
May 2025	Birth Size	20.8%	97%
Sep 2025	Birth Weight	43.6 kg	93%
May 2025	Birth Weight	43.6 kg	93%
Sep 2025	Gest	-2.81 days	99%
May 2025	Gest	-2.82 days	99%
Sep 2025	Mort	-0.68	99%
May 2025	Mort	-0.69	99%
Sep 2025	Maternal Calving Difficulty	5.19%	98%
May 2025	Maternal Calving Difficulty	5.13%	98%

4,574 total progeny records from 999 dairy contemporary groups

( 45,547 herdmate records from 987 dairy contemporary groups)

430 progeny ( 2,019 herdmates) born to heifers
1,130 progeny ( 10,681 herdmates) born to 2nd parity dam
3,014 progeny ( 32,847 herdmates) born to ≥3rd parity dam
48.6% progeny (50.2% herdmates) were males
Dam Info

	Dams	Herdmates of Dams
Breed Fraction	HO: 41.9%, FR: 53.5%, JE: 0.5%, NR: 0.5%, OTHER: 1.2%	HO: 44.8%, FR: 49.3%, JE: 1.2%, NR: 0.6%, OTHER: 1.5%
Average Calving Difficulty PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	6.8% 2.7% 2.7%	6.7% 2.7% 2.7%
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	837 Days 1143 Days 2238 Days	771 Days 1140 Days 2277 Days

214 total progeny records from 53 contemporary groups

( 3,236 herdmate records from 53 contemporary groups)

	Dams	Herdmates of Dams
Breed Fraction	HO: 51.9%, FR: 42.1%, JE: 0.7%, NR: 0.7%, OTHER: 1.3%	HO: 51.6%, FR: 40.4%, JE: 0.6%, NR: 1.6%, OTHER: 2.1%
Average Birth Size PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	18% 20% 19.9%	19.6% 20.4% 20.1%
Average Birth Weight PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	40.2kg 41.2kg 41.3kg	41.5kg 41.4kg 41.4kg
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	845 Days 1120 Days 2351 Days	753 Days 1130 Days 2292 Days

64 total progeny records from 10 contemporary groups

( 510 herdmate records from 10 contemporary groups)