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	High* 7.0% 2.9%	51% ( Average) 79% ( High)
May 2025	Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4) Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High* 7.0% 2.9%	51% 79%
Sep 2025	Birth Size (Progeny expected to be born large or extra large)	18.7%	74%
May 2025	Birth Size (Progeny expected to be born large or extra large)	18.6%	75%
Sep 2025	Birth Weight (Expected progeny birth weight)	40.6 kg	72%
May 2025	Birth Weight (Expected progeny birth weight)	40.5 kg	73%
Sep 2025	Gestation (Days between conception and birth)	1.60 days	93%
May 2025	Gestation (Days between conception and birth)	1.56 days	93%
Sep 2025	Mortality (Calves dead at or soon after birth)	-0.20	93%
May 2025	Mortality (Calves dead at or soon after birth)	-0.15	93%
Sep 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	5.60%	39%
May 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	5.66%	37%

Date of Evaluation	Trait	PTA	Rel. %
Sep 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High* 7.0% 2.9%	51% ( Average) 79% ( High)
May 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High* 7.0% 2.9%	51% 79%
Sep 2025	Birth Size	18.7%	74%
May 2025	Birth Size	18.6%	75%
Sep 2025	Birth Weight	40.6 kg	72%
May 2025	Birth Weight	40.5 kg	73%
Sep 2025	Gest	1.60 days	93%
May 2025	Gest	1.56 days	93%
Sep 2025	Mort	-0.20	93%
May 2025	Mort	-0.15	93%
Sep 2025	Maternal Calving Difficulty	5.60%	39%
May 2025	Maternal Calving Difficulty	5.66%	37%

164 total progeny records from 70 dairy contemporary groups

( 2,836 herdmate records from 69 dairy contemporary groups)

	Dams	Herdmates of Dams
Breed Fraction	HO: 34.6%, FR: 16.5%, JE: 1.1%, NR: 3.4%, OTHER: 12.3%	HO: 47.8%, FR: 20.8%, JE: 2.0%, NR: 2.7%, OTHER: 14.4%
Average Calving Difficulty PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	7.3% 2.8% 2.9%	8% 2.8% 2.8%
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	769 Days 1176 Days 2202 Days	731 Days 1140 Days 2215 Days

34 total progeny records from 11 contemporary groups

( 835 herdmate records from 11 contemporary groups)

	Dams	Herdmates of Dams
Breed Fraction	HO: 35.9%, FR: 9.3%, JE: 1.8%, NR: 1.1%, OTHER: 30.1%	HO: 36.9%, FR: 8.8%, JE: 0.4%, NR: 1.9%, OTHER: 30.6%
Average Birth Size PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	19.3% 20.6% 19.3%	21.9% 21% 19.5%
Average Birth Weight PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	40.9kg 42.1kg 41kg	41.9kg 41.7kg 41kg
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	697 Days 1241 Days 2383 Days	760 Days 1142 Days 2183 Days

17 total progeny records from 4 contemporary groups

( 547 herdmate records from 4 contemporary groups)