Average Gain in LPI and Pro$ Reliability Due to Genomics

August 2021

Sub‐Group for the HOLSTEIN Breed Average LPI and Pro$ Reliability (%)
Traditional Genomics Gain
≥50K Young Bulls and Heifers with a Proven Sire 41 78 37
≥50K Young Bulls and Heifers with an Unproven Sire 38 74 36
Heifers with LD Genotype (Born 2019‐2021) 31 74 43
Younger Cows in 1st or 2nd Lactation with LD Genotype 50 78 28
Foreign Cows with MACE in Canada 39 77 38
First Crop Progeny Proven Sires in Canada 83 91 8
Foreign Sires with MACE in Canada 67 86 19
 
Sub‐Group for the JERSEY Breed Average LPI and Pro$ Reliability (%)
Traditional Genomics Gain
≥50K Young Bulls and Heifers with a Proven Sire 33 53 20
Heifers with LD Genotype (Born 2019‐2021) 25 46 21
Younger Cows in 1st or 2nd Lactation with LD Genotype 46 63 17
Foreign Cows with MACE in Canada 33 52 19
First Crop Progeny Proven Sires in Canada 76 81 5
Foreign Sires with MACE in Canada 63 72 9
 
Sub‐Group for the BROWN SWISS Breed Average LPI Reliability (%)
Traditional Genomics Gain
≥50K Young Bulls and Heifers with a Proven Sire 30 53 23
Heifers with LD Genotype (Born 2019‐2021) 26 51 25
Younger Cows in 1st or 2nd Lactation with LD Genotype 45 63 18
Foreign Cows with MACE in Canada 35 55 20
First Crop Progeny Proven Sires in Canada 63 75 12
Foreign Sires with MACE in Canada 61 72 11
 
Sub‐Group for the AYRSHIRE Breed Average LPI Reliability (%)
Traditional Genomics Gain
≥50K Young Bulls and Heifers with a Proven Sire 34 46 12
Heifers with LD Genotype (Born 2019‐2021) 23 38 15
Younger Cows in 1st or 2nd Lactation with LD Genotype 46 55 9
First Crop Progeny Proven Sires in Canada 78 81 3
Foreign Sires with MACE in Canada 66 72 6
 
Sub‐Group for GUERNSEY Breed Average LPI Reliability (%)
Traditional Genomics Gain
Young Bulls and Heifers with a Proven Sire 24 27 3
First Crop Progeny Proven Sires in Canada 60 61 1
Foreign Sires with MACE in Canada 56 58 2

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