Animal Husbandry And Hygiene Behaviors Associated With Calf Rearing

1805 Words8 Pages
Calf diarrhea or ‘scours’ is a commonly reported disease and a significant cause of economic losses and decreasing productivity of dairy producers. Disease prevention and management is important from both a calf and public health perspective due to positive association between exposure to domestic animals and human diarrheal disease. The aim of the community report and scientific review is to identify the zoonotic enteric diseases of neonatal calves and identify animal husbandry and hygiene behaviors associated with calf rearing linked to infection and outline recommended interventions to mitigate the transmission to people working in the dairy industry. This topic is relevant as it’s extremely important farmers know that some types of…show more content…
Cryptosporidium is wide spread in Australian dairy calves with prevalence as high as 100% in some herds. Infected calves can be asymptomatic, however, typical clinical signs include: 
loose, watery diarrhea, straining, anorexia, 
weight loss, 
depression, 
dehydration. Humans can be infected either directly or indirectly by consuming food or water contaminated with ooysts or by inadequate hand washing practices after exposure to infective feces or animals. Many people do not develop illness after exposure. Individuals with the greatest susceptibility to cryptosporidiosis include the young childeren, elderly, malnourished, disease impaired (i.e. those with diabetes, or chronic disease), and a broad group of immunocompromised individuals (i.e. AIDS patients, transplant recipients, and those receiving chemotherapy) who may become infected with lower number oocysts. For those individuals that show clinical signs, explosive watery diarrhea and abdominal pain are common. Vomiting, nausea, fever, and muscle cramps can also occur. The symptoms usually resolve in 7 to 14 days in an immunocompetent host. Oocyte excretion may continue to occur for up to an additional 1 to 4 weeks post resolution of clinical signs. Cryptosporidium are able to survive for prolonged periods in the environment under favorable conditions (temperatures from 0°C to 65°C) and are resistant to most common disinfectants (including chlorine bleaches and alcohol). Cryptosporidium loses its infectivity by
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