Immunity Is Key To Control Coccidiosis
13 years ago
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Vets at Janssen Animal Health say that the weight of evidence from studies that have taken place over the years shows that the treatment of coccidiosis with diclazuril (Vecoxan® 2.5 mg/ml Oral Suspension) does not interfere with the development of natural immunity.1,2 In lambs, the disease sometimes goes unrecognized at lambing time as scouring can be mild, but reduced weight gain could extend rearing time to slaughter. Subclinical disease is also a concern in calves, leading to significant economic loss.
Immunity
Most animals that survive an infection normally go on to develop a natural immunity that reduces their likelihood of becoming infected by the same organism in the future. Only the development of natural immunity will provide long term protection to lambs and calves against coccidiosis.10146 views
Posted
26th January, 2011 09h39
- Adult animals are usually immune to the effects of the Eimeria parasite that causes coccidiosis, but will continue to excrete oocysts at a low level.
- Young animals that are exposed to low levels of oocysts can go on to develop immunity without developing the disease.
- Young animals that are exposed to very high levels of oocysts, especially if their immune system is compromised due to stress, can develop clinical or subclinical coccidiosis.
- If calves or lambs are not exposed to sufficient oocysts when they are young, they will not develop immunity and so they remain vulnerable to infection in later life.
- Agneessens J, Goossens L, Louineau J, Daugschies A, Veys P, Build up of immunity after a diclazuril (Vecoxan®) treatment in calves , Poster at 24th World Buiatrics Congress, Nice 2006
- Cieslicki M, Diclazuril (Vecoxan®), ein neues produkt zur metaphylaxe und therapie der kokzidiose des schafes, Tierärztl Prax 2001; 29(G): 73-77.
- Taylor MA, Catchpole J, Marshall J, Marshall RN, Hoeben D, Histopathological observations on the activity of diclazuril (Vecoxan®) against the endogenous stages of Eimeria crandallis in sheep. Veterinary Parasitology 116 (2003) 305-314
- Vecoxan® 2.5 mg/ml Oral Suspension contains diclazuril 2.5 mg/ml Legal Category POM-VPS.
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