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why must they receive a low calcium diet pre-calving?
to improve the efficiency of absorption of dietary calcium
it stimulates increased mobilisation from bones
how can milk production be maximised?
extra vitamin D close to calving
commercial mineral supplements containing a balance of anionic salts and additional Ca during peak lactation
what are some common health problems?
poor fertility
mastitis
lameness
nutritional problems
how long is a cows oestrus cycle?
18-24 days
how long is the calving to conception period?
80-150 days