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 13.9% 5.5%	52% ( Average) 76% ( High)
May 2025	Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4) Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High 13.8% 5.5%	52% 76%
Sep 2025	Birth Size (Progeny expected to be born large or extra large)	29.6%	84%
May 2025	Birth Size (Progeny expected to be born large or extra large)	29.6%	83%
Sep 2025	Birth Weight (Expected progeny birth weight)	44.6 kg	78%
May 2025	Birth Weight (Expected progeny birth weight)	44.6 kg	78%
Sep 2025	Gestation (Days between conception and birth)	0.57 days	91%
May 2025	Gestation (Days between conception and birth)	0.60 days	91%
Sep 2025	Mortality (Calves dead at or soon after birth)	-0.35	91%
May 2025	Mortality (Calves dead at or soon after birth)	-0.38	91%
Sep 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	3.64%	65%
May 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	3.67%	64%

Date of Evaluation	Trait	PTA	Rel. %
Sep 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High 13.9% 5.5%	52% ( Average) 76% ( High)
May 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High 13.8% 5.5%	52% 76%
Sep 2025	Birth Size	29.6%	84%
May 2025	Birth Size	29.6%	83%
Sep 2025	Birth Weight	44.6 kg	78%
May 2025	Birth Weight	44.6 kg	78%
Sep 2025	Gest	0.57 days	91%
May 2025	Gest	0.60 days	91%
Sep 2025	Mort	-0.35	91%
May 2025	Mort	-0.38	91%
Sep 2025	Maternal Calving Difficulty	3.64%	65%
May 2025	Maternal Calving Difficulty	3.67%	64%

86 total progeny records from 32 dairy contemporary groups

( 1,680 herdmate records from 32 dairy contemporary groups)

	Dams	Herdmates of Dams
Breed Fraction	HO: 41.4%, FR: 14.8%, JE: 3.7%, NR: 5.3%, OTHER: 18.8%	HO: 50.7%, FR: 18.6%, JE: 7.6%, NR: 1.6%, OTHER: 12.5%
Average Calving Difficulty PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	7.6% 3% 2.9%	7.9% 2.9% 2.8%
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	738 Days 1135 Days 2036 Days	784 Days 1120 Days 2103 Days

21 total progeny records from 5 contemporary groups

( 383 herdmate records from 5 contemporary groups)

	Dams	Herdmates of Dams
Breed Fraction	HO: 42.0%, FR: 24.3%, JE: 3.6%, NR: 12.1%, OTHER: 13.2%	HO: 49.9%, FR: 28.0%, JE: 7.5%, NR: 3.9%, OTHER: 7.5%
Average Birth Size PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	0% 20.5% 21.1%	0% 19.9% 19.8%
Average Birth Weight PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	0kg 41.3kg 41.9kg	0kg 41.8kg 41.6kg
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	0 Days 1122 Days 1681 Days	0 Days 1112 Days 2007 Days

17 total progeny records from 3 contemporary groups

( 170 herdmate records from 3 contemporary groups)