Mineral Mixture and Salt for Dairy Animals: Small Cost, Big Returns

Minerals make up a tiny part of a dairy animal's diet, yet shortages cause some of the most expensive problems on a farm: animals that do not come into heat, repeat breeding, weak calves, retained placenta and lower milk. Most Pakistani fodders and straws do not supply enough of several key minerals, so supplementation is usually needed.

What minerals do

• Calcium and phosphorus — bones, milk production and muscle function (including around calving).
• Trace minerals such as copper, zinc, manganese and selenium — fertility, immunity and hoof health.
• Salt (sodium chloride) — appetite, digestion and water balance.

Signs of mineral deficiency

• Animals not showing heat or repeat breeding.
• Licking walls, soil or eating unusual objects (pica).
• Rough coat and poor growth in young stock.
• More retained placenta and weak calves.
• Weak hooves and lameness.

These signs have other causes too, so ask a veterinarian before blaming minerals alone.

How to feed minerals

1. Use a good-quality mineral mixture formulated for dairy animals. Check the label for calcium, phosphorus and trace minerals.
2. Mix the recommended daily amount into the concentrate, or follow the product instructions. More is not better — excess can cause problems.
3. Provide salt separately or as a salt lick so animals can take what they need.
4. Continue during the dry period with a dry-cow mineral as your vet or nutritionist advises — this is important for preventing milk fever.

Mineral blocks vs mixture

Mineral or salt blocks let animals help themselves, which is convenient, but intake varies a lot between animals — some lick too much and some too little. Mixing a measured amount of mineral mixture into each animal's concentrate gives more reliable intake, with a salt lick available as well. For high-yielding animals and dry cows, measured feeding is usually the better choice.

Water quality matters too

In some areas groundwater is very salty or contains high levels of certain minerals. If animals drink poorly or show unusual problems, have the water tested.

Track breeding outcomes after starting a mineral programme: fewer repeat breedings and shorter calving intervals are the clearest sign it is working.