Cryptosporidium parvum: Determination of ID50 and the dose–response relationship in experimentally challenged dairy calves
نویسندگان
چکیده
منابع مشابه
Strategies for the control of Cryptosporidium parvum infection in calves.
Cryptosporidium parvum is a protozoan parasite that is now recognized as one of the leading causes of diarrhea in young calves. To date, there are no drugs or preventive measures available for the control of this disease. We have developed an oral vaccine that, when given to calves at birth, protects against experimental challenge with C. parvum. However, when field tested on a large dairy oper...
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a study of oocyst shedding pattern and weight changes in neonatal calves experimentally infected with cryptosporidium parvum
background: cryptosporidium parvum is a protozoan parasite which belongs to apicomplexa phylum. the parasite infects both wild and domesticated animals and human beings as well. objectives: the purpose of the present study was to detect oocyst shedding and diarrhea pattern in experimental cryptosporidiosis and their correlation with weight loss in neonatal calves. methods: twelve holstein calve...
متن کاملEffect of nutritional plane on health and performance in dairy calves after experimental infection with Cryptosporidium parvum.
OBJECTIVE To evaluate the effect of nutritional plane on health and performance of dairy calves after infection with Cryptosporidium parvum. DESIGN Randomized, controlled trial. ANIMALS 20 Holstein bull calves. PROCEDURES Calves were assigned to a higher plane of nutrition (HPN; 0.30 Mcal intake energy/kg of metabolic body weight using a 28% protein-20% fat milk replacer) or conventional ...
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ژورنال
عنوان ژورنال: Veterinary Parasitology
سال: 2013
ISSN: 0304-4017
DOI: 10.1016/j.vetpar.2013.04.022