| |
2005 |
2006 |
2007 |
2008 |
2009 |
Total |
| *Voluntary Culling |
315
(0.89%) |
528
(1.35%) |
606
(1.38%) |
546
(1.25%) |
752
(1.58%) |
549.4 ± 70.60b
(1.29%) |
| Involuntary Culling |
6254
(99.11%) |
6413
(98.65%) |
10037
(98.62%) |
7457
(98.75%) |
8230
(98.42%) |
7678.2 ± 690.88a
(98.71%) |
a,bDifferent letters indicate statistical difference within column (P<0.05).
*Voluntary culling including low milk production in the absence of a known disease
problem, old age, body condition, surplus to herd requirements and all other
voluntary culling. |
