Crypto
(Cryptosporidiosis)

Cryptosporidiosis is one of those things that you hope you never have to deal with in your young stock (not to mention, in your home!). Deadly, fast-acting, and easily transferable to others, this is one disease that can be easy to get and hard to get rid of.  It is transferable to calves, lambs, pigs, goats, mice, rabbits, chickens, cats, dogs, geese, most domesticated animals, and even to humans.  

What exactly is Cryptosporidiosis?

Crypto is a microscopic parasite known as protozoa.  They commonly act together with other enteropathogens to produce intestinal injury and diarrhea. The protozoa first develop in the intestinal tract, and produce oocysts that pass through feces in the bedding pack and/or pasture.  There, they take several days to develop (sporulate), after which they will infect the animals.

Cryptosporidiosis causes diarrhea, inefficient weight gains, and even death.

Who is most susceptible? 

Young stock (5-21 days old), preweaned, recently weaned, or those in unsanitary, stressful, crowded conditions are at the highest risk. Typically the kids are infected in their first week of life (welcome to the world, kids! :( ). By the time they are 4 weeks old, they should be more or less resistant to the disease.

This disease is transferable to humans, particularly children and immunocompromised people.

What does it look like?
How can I find out if we have it?

Symptoms include watery, pale, yellow runny scouring, containing mucus.  The persistent diarrhea can result in dehydration, anorexia, emaciation, apathy, rough hair coat, inappetance, electrolyte imbalance, acidosis, and high morbidity due to dehydration.  

Scouring can last up to 2 weeks and can be continual or intermittent.

For a relatively low cost per test, you can send fecal samples.  It is difficult to diagnose with normal light microscopy, but it can be detected by phase-contrast microscopy. Your vet may or may not know this already.

Treatment

Effective treatments are not available. Usually it just has to run its course and will usually be over within 2 weeks. Supportive care, primarily hydration, is important. Frequent feedings, alternating milk with other fluids (electrolytes and water) may help.  Improve hygiene & sanitation, isolate infected kids, and clean pens daily.  You can also administer medicine to slow the scouring, such as Pepto Bismol.

The primary mode of transmission is by fecal-oral spread.  Cleanliness is imperative here.  So - clean, clean, clean!  Oocysts are resistant to most disinfectants and can survive for several months in cool and moist conditions. 

What type of disinfectant can I use?
Ammonia (5%), Ammonium hydroxide, hydrogen peroxide, chlorine dioxide, 10% formol saline, formalin, freeze-drying, and exposure to temperatures <32F (32C) or >149F (65C).  These are all effective in destroying oocyst infectivity.  

Prevention

  1. Colostrum: First off, ensure adequate quantities of colostrum to your kid goats.  This is a given, because kids are born with no immunoglobulins (antibodies) in their blood.  Colostral antibodies are absorbed and provide the necessary immunity until the kid's own immune system begins to function. The kid's health is dependent on the amount of antibodies it receives through colostrum.  For recommendations on colostrum, click here

  2. Coccidiostats: Provide coccidiostats (such as lasalocid or decoquinate) in the feed or salt.  Another option is paramomycin sulfate (100mg/kg/day, PO, for 11 days from the second day of age).  This proved successful in preventing natural disease in a controlled clinical field trial in goat kids.  That being said, it's not nice to pump your kids full of drugs if you don't have to... but whether or not, you must be sure to keep things as clean as possible. This is SO important to the health of your baby goats.

  3. Eliminate stress and overcrowding.   Crypto thrives in damp and unhygienic conditions.  Clean housing, clean bedding, and proper ventilation all contribute to the ability to fight any infection more quickly.  

References: 

We hope that this article helped you! We'd love to hear feedback, and also learn your tips and hear your stories too!  please write to us in the comments section below!  

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