New Zealand Dairy Statistics 2010-11 - LIC

In 2010/11 the average number of inseminations per cow (1.34) (recorded on the LIC National Database) has increased compared with the
previous season (1.32).
Graph 4.5: Average number of inseminations per cow for the last 20 seasons
The use of Ayrshire, Holstein-Friesian and Jersey semen over different cow breeds for the past fi ve seasons is shown in the graphs below.
Ayrshire semen use over Ayrshire cows is 26.7% (Graph 4.6). Crossbreed semen is used predominantly over Friesian/Jersey crosses (Graph 4.7).
The use of Jersey semen over other breeds is illustrated in Graph 4.8. The percentage of Holstein-Friesian semen over Holstein-Friesian cows
continues to decrease (Graph 4.9).
Graph 4.6: Ayrshire semen usage (%) over cow breed for the last fi ve seasons
30
Number of inseminations
1.36
1.34
1.32
1.30
1.28
1.26
1.24
1.22
1.20
Season
1.27
1991/92
2010/11
2009/10
2008/09
2007/08
2006/07
0%
1.33
1992/93
1.29 1.29
1993/94
1994/95
New Zealand Dairy Statistics 2010-11
1.29
1995/96
26.7 6.2 10.0 16.5 20.4 20.1
28.3 6.7 10.7 14.6 21.4 18.3
27.4 6.0 12.0 15.4 21.3 18.0
28.3 6.6 11.9 14.7 21.4 17.2
27.3 6.4 12.8 15.1 21.8 16.6
20%
1.28
1996/97
1.25
1997/98
1.27 1.27
1998/99
1999/00
1.30 1.30
40% 60% 80% 100%
Ayrshire Jersey Holstein-Friesian Holstein-Friesian/Jersey Ayrshire crossbreed Other
2000/01
2001/02
Season
1.31
2002/03
1.30
2003/04
1.30 1.30
2004/05
2005/06
1.32
2006/07
1.35
2007/08
1.34
2008/09
1.32
2009/10
1.34
2010/11