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Worms & Liver Fluke in Cattle & Buffalo
Disease guide CowBuffalo

Worms & Liver Fluke in Cattle & Buffalo

Worms and liver fluke are parasites living in the gut, liver or lungs of cattle and buffaloes that can cause weight loss, anaemia and less milk. Dung tests such as flotation, sedimentation, egg counts and the Baermann test help a vet find them.

Signs owners may notice

  • Weight loss or poor growth despite eating
  • A drop in milk yield
  • Rough, dull coat
  • Diarrhoea or soft dung
  • Pale gums and eyes from anaemia
  • Soft swelling under the jaw (bottle jaw)
  • Pot belly in calves
  • Cough in young stock with lungworm

Signs alone cannot name a disease. If your animal looks unwell, see a veterinarian promptly.

How lab tests help

A flotation test finds roundworm eggs and coccidia in dung, and a sedimentation test finds heavy fluke eggs that do not float. An egg count shows roughly how many eggs are passed, which helps your vet judge the burden. The Baermann test finds lungworm larvae. Blood tests can show anaemia, low protein or liver damage. A registered veterinarian reads the results with the herd's history.

What are worms and liver fluke?

Worms are parasites that live inside the animal. Roundworms in the stomach and gut are the most common. Some, such as the barber's pole worm, suck blood and cause anaemia. Buffalo calves often get a large roundworm called Toxocara, passed on through the mother's milk. Tapeworms may be seen as white segments in the dung. Lungworms live in the airways and cause coughing.

Liver fluke is a flat, leaf-shaped worm that lives in the liver and bile ducts. Its young stages grow inside water snails, so animals that graze near ponds, canals, rice fields or waterlogged land are most at risk. Rumen fluke is another fluke of cattle and buffaloes, and its young stages in the gut can cause diarrhoea. Heavy burdens lower milk yield and growth, even when the animal does not look sick.

Signs to watch for

Common signs include:

  • Weight loss or poor growth
  • A drop in milk
  • A rough, dull coat
  • Diarrhoea or soft dung
  • Pale gums and eyes
  • A soft swelling under the jaw (bottle jaw)
  • A pot belly in calves

Not every animal shows every sign. Many animals with worms look healthy, and a dung test is the way to know.

Which lab tests help

Fresh dung is the main sample. Collect it fresh into a clean, closed container, or ask your vet to take it. A Faecal Flotation Test (Worm Eggs & Oocysts) makes roundworm eggs and coccidia float up so they can be seen under a microscope. Fluke eggs are heavy and do not float well, so a Faecal Sedimentation Test (Fluke Eggs) is used for liver and rumen fluke.

The Fecal Worm Egg Count for Cattle & Buffalo counts the eggs in a weighed amount of dung, which helps your vet judge how heavy the burden is. Your vet may repeat it later to check how well the herd's worm control is working. The Lungworm Larvae Detection (Baermann Test) collects lungworm larvae from fresh dung that has not been kept in a fridge.

Eggs are passed on and off, and young flukes lay no eggs, so one negative test does not rule worms out. Blood tests can add detail: a Complete Blood Count (CBC) shows anaemia, Protein Total, Albumin, Globulin shows protein loss, and GGTP (Gamma Glutamyl Transpeptidase) can show liver damage from flukes.

A registered veterinarian interprets every result together with the herd's signs and history.

When to see your vet

See your vet promptly if animals lose weight, drop in milk, have diarrhoea or show pale gums or bottle jaw. A weak, very pale animal needs a vet the same day. Regular dung tests on a few animals can show when the herd needs attention. Ask your vet about a worm and fluke prevention plan for your herd.

Testing in Bhopal

Pashupatinath Vet Lab is at C-200, C Sector, Shahpura, Bhopal. Dung samples are collected free anywhere in Bhopal. From other districts, samples can be sent by courier, by bus parcel or through your local vet; call or WhatsApp +91 88175 01118 so the lab can coordinate. Reports are shared on WhatsApp, by e-mail and in My Reports on the website.

Lab tests that may help

Packages

A routine health screen for milking cows and buffaloes.

  • CBC
  • Blood Parasite Smear
  • + 4 more tests

Call to confirm

Farm animals

Herd Screening Pack

Screen a dairy herd for brucellosis, FMD, tick fever and worms.

  • Brucellosis Test
  • FMD Test
  • + 2 more tests

Call to confirm

Common questions

How do I know if my cow or buffalo has worms?
A dung test is the usual way to find out if a cow or buffalo has worms, because many animals with worms look healthy. Signs that may point to worms include weight loss, less milk, a dull coat, diarrhoea, pale gums and a swelling under the jaw. Your vet decides which dung tests to use.
Which test shows liver fluke in cattle?
A faecal sedimentation test is used to find liver fluke eggs in cattle and buffalo dung, because fluke eggs are too heavy for a flotation test. Young flukes lay no eggs, so a negative result does not always rule fluke out. Blood tests such as GGT can show liver damage. A registered veterinarian reads the results.
What is a worm egg count in cattle?
A worm egg count is a dung test that counts the worm eggs in a weighed amount of dung. It helps your vet judge how heavy the worm burden is and, when repeated later, how well worm control is working. Eggs are passed on and off, so your vet reads the count with the animal's signs and the herd's history.
Why are animals grazing near ponds more at risk of liver fluke?
Animals grazing near ponds, canals, rice fields or waterlogged land are more at risk of liver fluke because the fluke's young stages grow in water snails and then wait on wet grass. Cattle and buffaloes swallow them while grazing. Ask your vet about fluke prevention if your animals graze such land.

This guide is general information for animal owners. It does not diagnose or treat any animal. A registered veterinarian should examine the animal and read all test results together with its signs and history.

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