New Zealand Dairy Statistics 2010-11 - LIC

Table 4.16 shows the average BVs and BW by breed, of all 2008 born cows. The Jersey cows had the highest average BW at 85.9. Holstein
Friesian cows had the highest milkfat, protein, and milk volume BVs. All evaluations are comparable across breeds.
Table 4.16: Average Breeding Worth and Breeding Values of all cows by breed born in 2008
Breed BW
$
38
Milkfat BV
(kg)
New Zealand Dairy Statistics 2010-11
Protein BV
(kg)
Milk Volume
BV (l)
Liveweight
BV (kg)
Somatic Cell
BV (score)
Fertility BV
(%)
Residual Survival
BV (days)
Cow
Numbers
Holstein-Friesian 72.3 15 16.8 513 32.4 0.05 0.8 -33 426,523
Jersey 85.9 4.5 -5.8 -525 -52 -0.01 2.4 -20 125,037
Ayrshire -14.4 -6.4 -0.2 19 2.2 -0.23 -3.2 125 8,163
Holstein-Friesian /Jersey 82 10.7 6.8 36 -5.2 0.01 1.7 -30 452,893
Guernsey -209 -27 -18 -477 18.9 0.25 -5.5 -118 77
Milking Shorthorn -116 -22 -11 -249 7.1 -0.13 -2.2 106 392
Brown Swiss -132 -21 -7.2 -221 30.6 -0.22 -10 285 89
Other 56.8 6 5.0 24 -4 -0.06 0.2 4 61,524
Weighted Average 76.3 11.3 9.1 159 4.5 0.02 1.3 -27 1,074,698
(Evaluation date: 14 May 2011)
Survivability is measured by the percentage of cows that have a lactation recorded for consecutive years. In the 2010/11 season, the value in
the “2-3 years” column is the percentage of cows that were milking as two-year-olds in the 2009/10 season and are now milking as
three-year-olds in the 2010/11 season. Table 4.17 shows that for the 2010/11 season the highest percentage of survival is in animals aged 3-4
years (87.2%), followed by animals aged 2-3 years (86.2%) and 4-5 years (86.0%).
Table 4.17: Survivability percentages since 1996/97
Percentage (%) of age group surviving to next lactation
Season 2-3 years 3-4 years 4-5 years 5-6 years 6-7 years 7-8 years 8-9 years
1996/97 84.9 85.1 84.8 81.6 78.2 74.2 69.0
1997/98 85.9 86.7 85.6 81.9 77.7 73.9 68.3
1998/99 84.5 86.1 85.8 83.0 80.0 75.5 70.5
1999/00 84.1 86.2 85.8 82.8 80.7 76.3 70.8
2000/01 85.3 86.7 86.5 83.2 80.1 76.5 71.7
2001/02 85.6 88.4 86.8 84.3 80.8 77.1 73.5
2002/03 85.7 85.9 86.6 83.8 80.8 76.0 71.2
2003/04 85.2 86.9 86.0 83.0 78.7 74.8 69.4
2004/05 85.7 87.3 86.7 82.7 79.7 74.6 69.6
2005/06 85.0 87.5 87.6 84.2 79.7 76.7 70.6
2006/07 84.8 87.8 88.2 84.7 79.5 74.9 71.2
2007/08 84.0 87.6 87.2 84.1 80.0 74.9 69.5
2008/09 86.8 87.7 87.5 83.4 80.2 76.1 70.7
2009/10 87.0 87.2 86.3 82.2 77.6 72.9 67.3
2010/11 86.2 87.2 86.0 81.1 76.8 71.2 65.7