Almost every farmer who walks into our shop knows exactly what the dairy pays per litre. Far fewer can say what it costs them to produce that litre. Those two numbers together are the entire business, and the gap between them is your income.

We have deliberately not put rupee prices in this article. Feed prices move with the season, and a page quoting last year's rates is worse than no page at all. What follows is the method — put your own current numbers into it.

Step 1: Cost per cow per day

List everything a milch cow eats in a day and what each item costs you. A typical ration might look like this — fill in your own quantities and rates:

ItemQuantity per dayYour rateYour cost
Beer Poosa (wet)8 kg₹ ___ /kg₹ ___
Maize / energy feed1 – 2 kg₹ ___ /kg₹ ___
Dry roughage (straw)4 – 5 kg₹ ___ /kg₹ ___
Green fodder15 – 20 kg₹ ___ /kg (or own land)₹ ___
Mineral mixture60 g₹ ___ /kg₹ ___
Total₹ ___ per cow per day

Step 2: Cost per litre

Divide daily feed cost by daily yield for that cow. A cow costing ₹200 a day to feed and giving 10 litres has a feed cost of ₹20 per litre. If the dairy pays ₹35, you have ₹15 per litre before labour, veterinary care, breeding and depreciation.

This is the number to track, and it is where a lot of intuition turns out to be wrong. A cow eating an expensive ration and giving 14 litres is frequently more profitable than a cow on a cheap ration giving 6 — even though the second one "costs less to keep".

Step 3: Check the share

As a rough guide, feed should account for somewhere around 60–70% of your gross milk income in a smallholder dairy. Use that as a diagnostic:

Feed as share of milk incomeWhat it usually means
Under 55%Good — or you are underfeeding and yield could be higher
60 – 70%Normal range for a smallholder herd
70 – 85%Tight. Check yield per cow before cutting feed
Over 85%Losing money. Something is structurally wrong

Where the money actually goes

Feeding low producers the same ration as high producers

A cow giving 4 litres does not need a 10-litre ration, and feeding her one is a pure loss every single day. Group your animals by yield and feed accordingly.

Cutting feed when milk drops

The instinctive response, and usually the wrong one. It lowers today's cost and next week's income, and it takes weeks to recover a lactation that has fallen away. Diagnose the cause first.

Buying on price per kilogram

You are buying nutrients, not weight. Work out cost per kilogram of protein rather than per kilogram of feed — the ranking often reverses.

Skipping the mineral mixture

It costs a few rupees a day and affects yield, fertility and how long a cow stays productive. It is the last thing to cut, not the first.

Feed that spoils

Feed you throw away costs exactly the same as feed you use. With wet feeds, buying three or four days at a time usually beats a bulk price you cannot use through.

A quick worked example

Two cows, same shed, feed rates as at your local market:

Cow ACow B
Daily yield6 litres11 litres
RationStraw + 2 kg concentrateStraw + green + 8 kg Beer Poosa + 1 kg maize + minerals
Feed cost per dayLowerHigher
Feed cost per litreUsually higherUsually lower
Margin per daySmallerLarger

Cow A looks cheaper and is generally the worse animal to keep. Fixed costs — labour, shed, veterinary care, the cow's own maintenance — are spread across far fewer litres. This is the single most common miscalculation we see.

Run the numbers on your own herd

Take one cow, work out her cost per litre for a week, and you will know more about your dairy than most farmers know about theirs. Bring the figures to the shop at Karivedu, Kalavai and we will go through them with you — including telling you if you are already feeding well and the problem lies elsewhere.