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Birds that sit down, walk on their hocks, lay thin-shelled or shell-less eggs, or simply lag behind the rest of the flock: weak legs and weak shells are among the most common reasons farmers look for a calcium tonic. Calcium and phosphorus build bone, shell and muscle, and the B vitamins and trace minerals help the bird use them. This guide explains the common causes of leg weakness and shell trouble, what to correct in feed first, and where Pyrocal B, a liquid calcium, phosphorus, trace mineral and B complex tonic from IMN Pyrophos, fits in. If you are searching for a calcium tonic for poultry, read the section on what to check first, because more calcium is not always the answer.

Why calcium and phosphorus matter in poultry

  • Bones and legs: fast-growing broilers add weight quickly, and bones must keep up.
  • Eggshell: a layer uses a large share of her calcium for every shell, so a small gap shows up as thin shells and breakage.
  • Muscle and nerve function: calcium and phosphorus, together with B vitamins, support muscle strength and energy use.

Signs your flock may need mineral support

  • Lameness, weak legs or birds sitting down in broilers.
  • Uneven flock growth, with a tail of small birds.
  • Dull, tired birds with low appetite, or weight loss after a viral disease.
  • In layers, a drop in production, thin or shell-less eggs, and more breakage. Our guide on egg production drop in layers in winter shows how to check light, feed and water first.

What to check before adding any calcium

  1. The ration. Ask your nutritionist to check calcium, phosphorus, vitamin D3 and their balance against age and production. More calcium than the bird needs can harm young chicks and the kidney.
  2. Feed intake and water. Low intake in winter or heat lowers mineral intake, however good the ration is.
  3. Disease. Lameness can also come from infection of joints or tendons, and from viral disease. A post-mortem shows which.
  4. Management. Slippery floors, overcrowding and fast early growth all stress the legs. See our winter broiler management guide.
  5. Kidney health. Do not add extra calcium to a flock with gout or swollen kidneys. Read gout treatment in poultry first.

What is Pyrocal B?

Pyrocal B is a liquid tonic that puts calcium, phosphorus, B complex vitamins, iron, trace minerals and an appetite stimulant in one product. The product page lists calcium, phosphorus, chromium, zinc, copper, iodine, selenium, manganese, iron, vitamin B1, vitamin B3 and folic acid. It is meant for problems such as lameness, weak legs, dull birds, uneven flock growth, low appetite, weight loss after viral disease, low egg production, shell-less eggs and lethargy. It is a supplement, not a medicine for infection.

What does Pyrocal B do? (product page)

What the product page saysWhat it means in the shed
Provides supplemental ionic calcium and phosphorusMineral support in liquid form that birds can take in water
Reduces chances of lamenessFewer birds sitting down on weak legs
Improves egg productionSupport for shell and laying percentage
Useful during weakness, increases muscle strengthHelp for tired, dull birds
B complex vitamins and minerals improve metabolism and weight gainBetter use of feed
Helps bring uniformity in the flockSmaller gap between the biggest and smallest birds
Works as an appetite stimulantBirds eat better after stress or disease

Pyrocal B supports the bird while the real cause is corrected. It does not replace a balanced ration or treatment of disease.

Pyrocal B dose

How to giveDose (product page)
In drinking water3 ml per litre of water
Per flock size40 ml per 100 birds

Cost example (calculated from the 1 L price of ₹468, about ₹0.47 per ml). At 3 ml per litre, each litre of medicated water costs about ₹1.40. For 1,000 birds at 40 ml per 100 birds you need 400 ml, about ₹187 for that dose. The product page does not state how many days to give it, so confirm the course length with your vet or on WhatsApp.

How to give Pyrocal B, step by step

  1. Decide the goal: weak legs, uneven growth, low appetite, or shell and egg support.
  2. Measure the liquid with a syringe or measuring cup at 3 ml per litre, or 40 ml per 100 birds.
  3. Mix it into the drinking water that the birds will finish, and keep drinkers clean.
  4. Keep the ration right. A tonic does not make up for a poor ration.
  5. Record lameness count, egg shell quality and feed intake, so you can judge the change.
Pyrocal B calcium tonic for poultry by IMN Pyrophos

Calcium tonic

Pyrocal B

Liquid calcium, phosphorus, trace minerals and B complex for poultry. Provides ionic calcium and phosphorus, reduces chances of lameness, improves egg production and helps bring uniformity in the flock.

Dose: 3 ml per litre of water or 40 ml per 100 birds.

1 L ₹468MRP ₹680   5 L ₹2,070MRP ₹2,745

Product guide by problem

Calcium tonic ka sahi istemal: pehle ration aur kidney check, phir Pyrocal B 3 ml per litre ya 40 ml per 100 pakshi

Where Pyrocal B fits in your plan

  • Broilers with weak legs: along with a corrected ration and good litter, and a balanced start in brooding.
  • After a viral disease: when birds have lost weight and appetite.
  • Layers with thin shells or a production dip: together with Egg Up, as in our layer guide.
  • Uneven flocks: to help bring uniformity.

What not to do

  • Do not add calcium to a flock with gout, white pasty droppings or swollen kidneys.
  • Do not use a tonic to cover for a poor ration.
  • Do not guess the dose. Measure it.
  • Do not ignore infection. A limping bird may need your vet.

Common mistakes

  • Giving extra calcium to young chicks without checking the ration.
  • Blaming calcium for every limp. Joint infection and management cause many cases.
  • Stopping early or giving it without end. Plan the course with your vet or our team.
  • No records. Without notes it is hard to see if the flock is improving.

Frequently asked questions

What is the best calcium tonic for poultry? There is no single bottle. A balanced ration comes first, and a liquid tonic such as Pyrocal B supports birds with weak legs, shell problems or low appetite.

What is Pyrocal B used for? Lameness, weak legs, dull birds, uneven flock growth, low appetite, weight loss after viral disease, low egg production and shell-less eggs.

What does Pyrocal B contain? Calcium, phosphorus, chromium, zinc, copper, iodine, selenium, manganese, iron, vitamin B1, vitamin B3 and folic acid.

What is the Pyrocal B dose? 3 ml per litre of water or 40 ml per 100 birds.

What is the price of Pyrocal B? 1 L is ₹468 (MRP ₹680) and 5 L is ₹2,070 (MRP ₹2,745). Prices may change, so confirm on WhatsApp.

Can I give Pyrocal B to broilers and layers? The product page lists lameness, weak legs and uneven growth, as well as low egg production and shell-less eggs. Ask on WhatsApp for the plan that fits your age and flock.

Is it safe if birds have gout? Avoid adding calcium to a flock with gout or swollen kidneys and ask your vet first.

Where can I see all IMN products? The IMN product guide lists each product by problem and stage.

Weak legs, thin shells or an uneven flock? Send the age, breed, number of birds, ration details and a short video on WhatsApp +91 98715 84101. Dr. Ibne Ali’s team will help you plan the care and the Pyrocal B dose. Ask on WhatsApp

Also read: Pyrocal B · Egg production drop in layers · Winter broiler management guide · Gout treatment in poultry · IMN product guide

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