The Poor Mother
First Calf at 2 Years
The dairy cow normally has her first calf at the age of two when she
will be producing around 35 litres of milk a day. In subsequent
lactations this figure rises even higher. She will continue to be
milked for 10 months - but will be made pregnant again in the third
month. Around 60-75% of cows are artificially inseminated.
Calf Removal
According to Professor A.J.F. Webster (Dept of Animal Husbandry) at
Bristol University "The most potentially distressing incident in the
life of the dairy cow is the removal of her calf." He adds that calves
are removed from their mothers as early as possible so the milk can be
used for human consumption. Many welfarists call for calves to remain
with their mothers for longer periods of time. However, if the calf is
removed after weeks or months it will be far worse for both. Mother and
calf will have formed an extremely powerful emotional bond. Separation
would cause profound and prolonged distress to both.
Final Weeks of Pregnancy
For the final few weeks of
pregnancy she will be dried out and her overworked udder given a rest.
The amount of milk produced by the cow in peak lactation is more than
10 times that the calf would have drunk had it been left to suckle.
Grossly Overworked
"The amount of work done by the cow in peak lactation is immense.
The heat produced in metabolism by a 600kg Friesian cow giving 35l
milk/day is about 130 MJ/day (or 2.7 kilowatts). This is over twice her
metabolic rate at maintenance (i.e. when dry and non-pregnant). To
achieve a comparably high work rate a human would have to jog for about
6 hours a day, every day." Professor Webster.
Killed While Still Pregnant
Most cull cows (cows destined to be killed) are sent for slaughter when they
are pregnant and calves have been born in transport on the way to the
slaughterhouse. The Ministry of Agriculture explains "It is normal
husbandry practice to put cows in calf during lactation, even if they
are to be culled. In the normal course of events, therefore, many cows
going for slaughter would be in-calf".
References
1. The Welfare of Dairy Cattle. Professor A.J.F. Webster, Department of Animal Husbandry, University of Bristol
2. MAFF letter to Compassion in World Farming