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 10.3% 3.9%	62% ( High) 87% ( V High)
May 2025	Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4) Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High 10.2% 3.9%	63% 87%
Sep 2025	Birth Size (Progeny expected to be born large or extra large)	31.1%	67%
May 2025	Birth Size (Progeny expected to be born large or extra large)	31.0%	67%
Sep 2025	Birth Weight (Expected progeny birth weight)	43.3 kg	62%
May 2025	Birth Weight (Expected progeny birth weight)	43.3 kg	62%
Sep 2025	Gestation (Days between conception and birth)	5.05 days	97%
May 2025	Gestation (Days between conception and birth)	5.07 days	97%
Sep 2025	Mortality (Calves dead at or soon after birth)	-0.50	97%
May 2025	Mortality (Calves dead at or soon after birth)	-0.52	97%
Sep 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	2.95%	50%
May 2025	Maternal Calving Difficulty (Births Requiring Considerable Assistance; % 3 & 4)	2.93%	50%

Date of Evaluation	Trait	PTA	Rel. %
Sep 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High 10.3% 3.9%	62% ( High) 87% ( V High)
May 2025	Calving Difficulty Risk of Dairy Calving Difficulty: Dairy Heifers Dairy Cows	High 10.2% 3.9%	63% 87%
Sep 2025	Birth Size	31.1%	67%
May 2025	Birth Size	31.0%	67%
Sep 2025	Birth Weight	43.3 kg	62%
May 2025	Birth Weight	43.3 kg	62%
Sep 2025	Gest	5.05 days	97%
May 2025	Gest	5.07 days	97%
Sep 2025	Mort	-0.50	97%
May 2025	Mort	-0.52	97%
Sep 2025	Maternal Calving Difficulty	2.95%	50%
May 2025	Maternal Calving Difficulty	2.93%	50%

291 total progeny records from 77 dairy contemporary groups

( 3,836 herdmate records from 76 dairy contemporary groups)

	Dams	Herdmates of Dams
Breed Fraction	HO: 59.2%, FR: 13.8%, JE: 3.7%, NR: 1.2%, OTHER: 4.5%	HO: 64.8%, FR: 15.1%, JE: 1.8%, NR: 1.0%, OTHER: 7.0%
Average Calving Difficulty PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	8.4% 3.2% 2.8%	8.4% 2.9% 2.8%
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	765 Days 1129 Days 2129 Days	739 Days 1121 Days 2171 Days

21 total progeny records from 7 contemporary groups

( 339 herdmate records from 7 contemporary groups)

	Dams	Herdmates of Dams
Breed Fraction	HO: 65.4%, FR: 13.1%, JE: 0.1%, NR: 0.0%, OTHER: 5.6%	HO: 63.8%, FR: 19.5%, JE: 0.2%, NR: 0.1%, OTHER: 8.8%
Average Birth Size PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	23% 22.3% 22.4%	20.2% 19.1% 20.1%
Average Birth Weight PTA 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	0kg 0kg 41.7kg	0kg 0kg 41.8kg
Average Age at Calving 1st Parity Dam 2nd Parity Dam 3rd Parity Dam	707 Days 1111 Days 2218 Days	755 Days 1104 Days 2271 Days

11 total progeny records from 4 contemporary groups

( 118 herdmate records from 4 contemporary groups)