|
Population trends of the Holstein-Friesian dairy cattle
Year |
No of herds |
Milking
cows |
Pregnant
Heifers |
Total
cattle |
|
|
|
|
|
1990 |
535 |
22411 |
5582 |
54032 |
1991 |
479 |
23120 |
5715 |
54681 |
1992 |
445 |
23897 |
6116 |
55613 |
1993 |
386 |
25646 |
6266 |
60954 |
1994 |
306 |
27574 |
6508 |
64214 |
1995 |
290 |
29481 |
6799 |
67949 |
1996 |
263 |
27319 |
7358 |
69918 |
1997 |
251 |
25491 |
7437 |
62276 |
1998 |
249 |
23822 |
6888 |
55741 |
1999 |
249 |
24052 |
6534 |
54023 |
2000 |
249 |
23511 |
5984 |
53979 |
2001 |
242 |
24365 |
6521 |
53434 |
2002 |
241 |
26232 |
6574 |
58156 |
2003 |
240 |
26612 |
6662 |
58513 |
2004 |
241 |
26078 |
6620 |
58234 |
2005 |
240 |
24585 |
6542 |
56513 |
2006 |
230 |
23940 |
6456 |
55234 |
The National Dairy Herd Improvement Program
1. All cows under recording |
Year |
No of herds |
No of
cows |
Days milked |
305-day yield |
Fat
(%) |
Prot
(%) |
1990 |
59 |
2791 |
285 |
5341 |
3.1 |
3.2 |
1991 |
52 |
2913 |
285 |
5501 |
2.9 |
3.1 |
1992 |
44 |
2537 |
282 |
5286 |
2.8 |
3.2 |
1993 |
40 |
2584 |
282 |
5314 |
3.0 |
3.0 |
1994 |
38 |
2729 |
280 |
5411 |
3.0 |
3.3 |
1995 |
35 |
2956 |
282 |
5347 |
3.0 |
3.3 |
1996 |
33 |
2727 |
275 |
5582 |
3.0 |
3.4 |
1997 |
31 |
2606 |
278 |
5741 |
3.0 |
3.2 |
1998 |
32 |
2549 |
282 |
6092 |
2.8 |
3.2 |
1999 |
30 |
2544 |
287 |
6396 |
2.9 |
3.2 |
2000 |
55 |
3098 |
286 |
6230 |
3.2 |
3.2 |
2001 |
62 |
4880 |
290 |
6594 |
3.2 |
3.2 |
2002 |
60 |
5278 |
292 |
6855 |
3.3 |
3.2 |
2003 |
60 |
5936 |
292 |
7130 |
3.3 |
3.2 |
2004 |
58 |
5489 |
291 |
7145 |
3.4 |
3.2 |
mean |
|
|
285 |
5998 |
3.1 |
3.2 |
2. Association cows |
Year |
No of herds |
No of
cows |
Days milked |
305-day yield |
Fat
(%) |
Prot
(%) |
2002 |
14 |
896 |
292 |
7431 |
3.51 |
3.32 |
2003 |
14 |
1392 |
291 |
7686 |
3.34 |
3.28 |
2004 |
14 |
1187 |
292 |
7388 |
3.50 |
3.32 |
2005 |
18 |
1896 |
293 |
7587 |
3.47 |
3.36 |
2006 |
21 |
2569 |
290 |
7756 |
3.44 |
3.42 |
mean |
|
|
|
7570 |
3.45 |
3.34 |
|
