New Zealand Dairy Statistics 2010-11 - LIC
New Zealand Dairy Statistics 2010-11 - LIC
New Zealand Dairy Statistics 2010-11 - LIC
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
The genetic trend for cows is based on all cows (alive or dead) recorded on the Livestock Improvement National Database in the <strong>2010</strong>/<strong>11</strong><br />
season. Also included are the estimated BW and PW for replacement stock (2009 and <strong>2010</strong> born animals). All evaluations can be compared<br />
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.<br />
Graph 4.16: Trend in Breeding Worth for all cows<br />
Breeding Worth ($)<br />
150<br />
100<br />
50<br />
0<br />
-50<br />
-100<br />
-150<br />
(Evaluation date: 14 May 20<strong>11</strong>)<br />
The trend for PW by breed is presented in Graph 4.17. Holstein-Friesian/Jersey crossbreds have maintained a higher PW over other breeds,<br />
caused by the effects of heterosis (hybrid vigour) in the crossbreds.<br />
Graph 4.17: Trend in Production Worth for all cows<br />
Production Worth ($)<br />
150<br />
100<br />
50<br />
0<br />
-50<br />
-100<br />
-150<br />
1990<br />
1990<br />
1991<br />
1991<br />
1992<br />
1992<br />
1993<br />
1993<br />
1994<br />
1995<br />
1996<br />
1997<br />
1998<br />
1999<br />
2000<br />
Year of Birth<br />
Holstein-Friesian Jersey Ayrshire Holstein-Friesian/Jersey<br />
1994<br />
1995<br />
1996<br />
1997<br />
1998<br />
1999<br />
2000<br />
Holstein-Friesian Jersey<br />
Year of Birth<br />
Ayrshire Holstein-Friesian/Jersey<br />
2001<br />
2001<br />
2002<br />
2002<br />
2003<br />
2003<br />
2004<br />
2004<br />
2005<br />
2005<br />
2006<br />
2006<br />
2007<br />
2007<br />
2008<br />
2008<br />
2009<br />
2009<br />
<strong>2010</strong><br />
<strong>2010</strong><br />
(Evaluation date: 14 May 20<strong>11</strong>)<br />
<strong>New</strong> <strong>Zealand</strong> <strong>Dairy</strong> <strong>Statistics</strong> <strong>2010</strong>-<strong>11</strong> 37