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cows

&PARASITES

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From 'House Cows' providing the family's milk to rare breed stud bulls, cattle form a key role on the smallholding. But there is a world of parasites in your grazing keen to infect your precious cows.

Good parasite control can increase the quality of cows you sell, improve their growth & feed conversion rate and substantially increase their milk yield. Over-do your wormer use and you'll just breed resistance.

Recommended cow FEC testing frequency: every 3 months

Highest risk periods: after flooding, grazing beside waterways

Cost of WEC test: £12.50 up to 5 samples

This can be a mix&match of species across the farm

ascarids

aka the Roundworms:

Ascaris suum

 

SYMPTOMS

Stunted growth

Coughing

Weight loss

Intestinal obstruction

Jaundice & liver failure

Low kill weight & rejected livers due to 'milk spots' - white scars from larval migration through the liver & the lungs 

WHIPWORM

aka Trichuris suis

SYMPTOMS

Stunting

Bloody, mucoid diarrhoea

Rectal prolapse

Low kill weight, very poor feed conversion rates

Nodular Worm

aka Oesophagostomum dentatum

SYMPTOMS

Nodules in the intestines

Poor body condition

Diarrhoea

Condemnation of the intestines at abattoir

coccidia 

aka Coccidiosis:

Eimeria, Isospora

SYMPTOMS

Mainly affects piglets:

Diarrhoea (often pasty)

Blood & mucus in faeces

Skinny 

Permanent gut damage

Healthy adults will often have coccidia in their faeces - interpret positive samples with care before using a coccidiostat

ROUNDWORMS

aka the Nematodes:

Ostertagia (the brown stomach worm), Trichostrongylus axei (the small stomach worm),  Cooperia, Oesophagostomum (the nodular worm), trichostrongylus colubriformis (hair worm / black scour worm)

SYMPTOMS

Diarrhoea

Lower milk production

Poor condition

Slow growth rate

Midline or jaw oedema

Death

haemonchus

aka Barbers Pole Worm:

Haemonchus contortus

SYMPTOMS

Anaemia

Weight Loss

Lethargy

Sudden death

Normal Poos

tapeworm

aka the Cestodes:

Monezia, Thysanosoma

SYMPTOMS

Look horrible when wriggling out - but surprisingly harmless!

Heavy burdens in calves cause:

Anorexia

Reduced gut motility

Gut rupture & peritonitis

coccidia 

aka Coccidiosis:

Eimeria

SYMPTOMS

Mainly affects calves:

Diarrhoea (often pasty)

Blood & mucus in faeces

Skinny & weak

Abdominal Pain

Permanent gut damage

Healthy adults will often have coccidia in their faeces - interpret positive samples with care before using a coccidiostat

LIVER FLUKE

aka Fasciola:

Fasciola hepatica, Fascioloides magna

SYMPTOMS

Anorexia & depression

Weakness & dry faeces

Increased respiratory rate

Ascites (belly fluid)

Colic

Sudden death

LUNGWORMS

Dictyocaulus viviparus

SYMPTOMS

Young Animals:

Cough, blue membranes (cyanosis), difficulty breathing

Adults:

Cough

Nasal discharge

Increased respiratory rate

Poor condition

Weight loss

whipworm

Trichuris ovis

SYMPTOMS

Mainly asymptomatic

large numbers rarely cause haemorrhage into the caecum:

depression, collapse, aneamia, sudden death

nematodirus

aka Nematodirus battus, Nematodirus filicollis

SYMPTOMS

Mainly a problem in lambs, but cows can be a host and infest grazing intended for sheep

Small Holder's Worm Advice Service

Tomtebo, Nickley Wood Road, Ashford, Kent TN26 1LZ

email: orlestone.farm@outlook.com