New Zealand Dairy Statistics 2010-11 - LIC

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The Breeding Worth (BW) for cows presented below (Table 4.14 and Graph 4.14) is based on all cows of the users of herd testing services, in herds with at least 80 cows, and signed up for herd testing in the 2010/11 season. Table 4.14 shows that 50% of these cows had a BW of 63 or above and that 25% had a BW of 96 or above. Table 4.14: Cow Breeding Worth in 2010/11 Median Top 5% Top 10% Top 25% Bottom 25% Bottom 10% Bottom 5% Cow BW 63 > 138 > 123 > 96 < 27 < -6 < -29 Graph 4.14: Distribution of Cow Breeding Worth in 2010/11 36 New Zealand Dairy Statistics 2010-11 (Evaluation date: 14 May 2011) (Evaluation date: 14 May 2011) The Production Worth (PW) for cows presented below (Table 4.15 and Graph 4.15) is based on cows of the users of herd testing services, in herds with at least 80 cows, in the 2010/11 season. Table 4.15 shows that 50% of these cows had a PW of 74 or above and that 25% had a PW of 131 or above. Table 4.15: Cow Production Worth in 2010/11 Median Top 5% Top 10% Top 25% Bottom 25% Bottom 10% Bottom 5% Cow PW 74 > 218 > 184 > 131 < 15 < -38 < -74 Graph 4.15: Distribution of Cow Production Worth in 2010/11 Percentage of cows 16 14 15 10 8 6 4 2 0 Percentage of herds < -120 20 15 10 5 0 -120 - -90 < -50 -90 - -60 -50 - -30 -60 - -30 -30 - -10 -30 - 0 -10 - 10 0 - 30 10 - 30 30 - 60 30 - 50 50 - 70 Cow BW ($) 60 - 90 90 - 120 Cow PW ($) 70 - 90 120 - 150 90 - 110 150 - 180 110 - 130 180 - 210 130 - 150 210 - 240 150+ 240 - 270 270 - 300 300+ (Evaluation date: 14 May 2011) (Evaluation date: 14 May 2011)
The genetic trend for cows is based on all cows (alive or dead) recorded on the Livestock Improvement National Database in the 2010/11 season. Also included are the estimated BW and PW for replacement stock (2009 and 2010 born animals). All evaluations can be compared across breeds. The genetic trend for BW by breed is presented in Graph 4.16. The Breeding Worth for all breeds has increased over time. Graph 4.16: Trend in Breeding Worth for all cows Breeding Worth ($) 150 100 50 0 -50 -100 -150 (Evaluation date: 14 May 2011) The trend for PW by breed is presented in Graph 4.17. Holstein-Friesian/Jersey crossbreds have maintained a higher PW over other breeds, caused by the effects of heterosis (hybrid vigour) in the crossbreds. Graph 4.17: Trend in Production Worth for all cows Production Worth ($) 150 100 50 0 -50 -100 -150 1990 1990 1991 1991 1992 1992 1993 1993 1994 1995 1996 1997 1998 1999 2000 Year of Birth Holstein-Friesian Jersey Ayrshire Holstein-Friesian/Jersey 1994 1995 1996 1997 1998 1999 2000 Holstein-Friesian Jersey Year of Birth Ayrshire Holstein-Friesian/Jersey 2001 2001 2002 2002 2003 2003 2004 2004 2005 2005 2006 2006 2007 2007 2008 2008 2009 2009 2010 2010 (Evaluation date: 14 May 2011) New Zealand Dairy Statistics 2010-11 37
Page 1 and 2: New Zealand Dairy Statistics 2010-1
Page 3 and 4: Contents 1. Introduction 4 2. Natio
Page 5 and 6: List of graphs 2.1 Trend in the num
Page 7 and 8: 2. National dairy statistics A. Ind
Page 9 and 10: The total cow population in the 201
Page 11 and 12: i) Production per cow Average milks
Page 13 and 14: ii) Herd size distribution • 9% o
Page 15 and 16: 3. Regional dairy statistics • 36
Page 17 and 18: • Highest average production per
Page 19 and 20: (table 3.3 continued) Region Distri
Page 21 and 22: (table 3.4 continued) Region Distri
Page 23 and 24: The trend in the percentage of tota
Page 25 and 26: Graph 4.2: Average milkfat and prot
Page 27 and 28: Average kg of protein per cow per d
Page 29 and 30: Ayrshire Age Cows tested Days in mi
Page 31 and 32: Yearlings to AB Region 2001/02 2002
Page 33 and 34: Graph 4.7: Crossbreed semen usage (
Page 35 and 36: D. Animal Evaluation The genetic me
Page 37: The Breeding Worth for herds presen
Page 41 and 42: 5. General statistics A. Prices rec
Page 43 and 44: ii) Dairy farm land sale values •
Page 45 and 46: B. Breed breakdown Three dairy bree
Page 47 and 48: Graph 5.5: Trend in planned start o
Page 49 and 50: Herd production in each of the main
Page 51 and 52: Table 5.9 shows the number and perc
Page 53 and 54: B. Tuberculosis (Tb) control Contro

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