| 2005 |
2006 |
2007 |
2008 |
2009 |
| Number of Dairy cows |
| 35379 |
39153 |
43945 |
43663 |
47627 |
| Mean of milk production per cow (kg/year) |
| 7078 |
7122 |
6927 |
7197 |
7364 |
| Mean of fat percentage |
| 3.48 |
3.47 |
3.42 |
3.48 |
3.48 |
| Mean of protein percentage |
| 3.07 |
3.30 |
3.28 |
3.31 |
3.21 |
| Culling rate in percentage* |
| 19 |
18 |
25 |
18 |
17 |
| Culling percentage due to diseases |
| 9.98 |
9.35 |
15.01 |
9.33 |
8.00 |
| Culling percentage due to non-productivity |
| 3.7 |
2.46 |
3.04 |
3.20 |
4.60 |
| Culling percentage due to less production |
| 0.4 |
0.6 |
0.63 |
0.40 |
0.72 |
| Culling percentage due to ageing |
| 0.20 |
0.53 |
0.54 |
0.62 |
0.65 |
| Culling percentage due to abnormal teats |
| 0.29 |
0.22 |
0.21 |
0.23 |
0.21 |
| Culling percentage due to dystocia |
| 0.23 |
0.26 |
0.28 |
0.25 |
0.33 |
| Culling percentage due to lameness |
| 1.80 |
2.10 |
1.79 |
1.57 |
2.14 |
| Culling percentage due to mastitis |
| 1.33 |
1.51 |
1.70 |
1.78 |
1.53 |
| Culling percentage due to genetic disorders |
| 0.64 |
0.70 |
1.02 |
0.95 |
0.68 |
*Culling rate in percentage=Total number cows culled/Total number of cows×100