New Zealand Dairy Statistics 2010-11 - LIC

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Table 4.10: Average Breeding Values and Breeding Worth of 2006 born bulls (reliability of 75% or greater) Breed Milkfat BV 34 Breeding Worth ($) 200 175 150 125 100 75 50 25 0 -25 -50 -100 1996 1997 New Zealand Dairy Statistics 2010-11 1998 Protein BV Milk Volume BV 1999 2000 Liveweight BV Holstein-Friesian Jersey Year of birth Ayrshire Crossbreed 2001 Somatic Cell BV 2002 Fertility BV 2003 Residual Survival BV 2004 2005 BW Number of Bulls Ayrshire 7.5 11.5 413.0 3.3 -0.3 -4.4 132.4 66.3 8 Holstein Friesian 19.1 26.8 837.6 45.3 -0.1 -0.3 -33.9 115.1 204 Jersey 9.7 -0.9 -416.1 -53.3 0.0 2.7 -30.5 127.5 134 Holstein Friesian Jersey Cross 17.9 12.6 123.2 -8.5 -0.1 1.7 -25.8 143.2 79 The genetic trend of proven dairy bulls is shown in Graph 4.11. Bulls born in 2006 are first proven in the 2010/11 season. Graph 4.11: Genetic trend of proven dairy bulls by year of birth (reliability of 75% or greater) (Evaluation date: 14 May 2011) 2006 (Evaluation date: 14 May 2011) Young bulls are initially selected for use in Artificial Breeding based on the genetic merit of their sire and dam. These young sires are then progeny tested to estimate their Breeding Worth more accurately, via the performance of their daughters. Each year some progeny tested bulls are returned to service for use as proven sires. Table 4.11 shows the number of sires, by birth year and breed, for which the Reliability of the BW was at least 75%. The information in this table is updated every year for all age groups to include older bulls that have now been proven in New Zealand. Table 4.11: Number of Sires by birth year and breed (reliability of BW 75% or greater, includes overseas bulls) Year of Birth Number of Sires Holstein-Friesian Jersey Holstein Friesian Jersey Cross Ayrshire Other Breeds 1996 444 249 148 2 38 7 1997 448 281 130 3 29 5 1998 466 272 154 6 30 4 1999 465 251 143 23 41 7 2000 528 279 134 69 39 7 2001 521 250 156 74 33 8 2002 518 262 158 73 22 3 2003 495 249 142 69 34 1 2004 496 241 142 91 21 1 2005 464 212 145 93 13 1 2006 427 204 134 79 8 2 (Evaluation date: 14 May 2011)
The Breeding Worth for herds presented below (Table 4.12 and Graph 4.12) is based on cows of the users of herd testing services, in herds with at least 80 cows, in the 2010/11 season. Table 4.12 shows that 50% of these herds had a BW of 64 or above and 25% had a BW of 75 or above. Table 4.12: Herd Breeding Worth in 2010/11 Median Top 5% Top 10% Top 25% Bottom 25% Bottom 10% Bottom 5% Herd BW 64 > 101 > 93 > 75 < 46 < 25 < 10 Graph 4.12: Distribution of Herd Breeding Worth in 2010/11 < -40 -40 - -30 -30 - -20 (Evaluation date: 14 May 2011) (Evaluation date: 14 May 2011) The Production Worth (PW) for herds presented below (Table 4.13 and Graph 4.13) is based on cows of the users of herd testing services, in herds with at least 80 cows, in the 2010/11 season. Table 4.13 shows that 50% of these herds had a PW of 76 or above and 25% had a PW of 95 or above. Table 4.13: Herd Production Worth in 2010/11 Median Top 5% Top 10% Top 25% Bottom 25% Bottom 10% Bottom 5% Herd PW 76 > 124 > 113 > 95 < 55 < 35 < 19 Graph 4.13: Distribution of Herd Production Worth in 2010/11 Percentage of herds Percentage of herds 16 12 8 4 0 20 15 10 5 0 < -30 -30 - -20 -20 - -10 -10 - 0 -20 - -10 0 - 10 -10 - 0 10 - 20 0 - 10 20 - 30 10 - 20 30 - 40 20 - 30 40 - 50 30 - 40 40 - 50 50 - 60 Herd BW ($) 50 - 60 60 - 70 Herd PW ($) 70 - 80 60 - 70 80 - 90 70 - 80 90 - 100 80 - 90 100 - 110 90 - 100 110 - 120 100 - 110 120 - 130 110 - 120 130 - 140 120 - 130 140 - 150 >130 (Evaluation date: 14 May 2011) > 150 (Evaluation date: 14 May 2011) New Zealand Dairy Statistics 2010-11 35
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: D. Animal Evaluation The genetic me
Page 39 and 40: The genetic trend for cows is based
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

New Zealand Dairy Statistics 2010-11 - LIC

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