Home
http://www.virbac.fr/ http://www.boehringer-ingelheim.com/ http://www.novartis.com/ http://www.animalhealth.bayerhealthcare.com/
vetcontact
Vetrinär
Tiermedizin
  WELCOME  
vetcontact
Vetrinär
Tiermedizin
  Home  
  Login / Newsletter  
vetcontact
Vetrinär
Tiermedizin
  CONTACTS  
vetcontact
Vetrinär
Tiermedizin
  Classifieds  
  New Products  
  VetCompanies  
  VetSchools  
vetcontact
Vetrinär
Tiermedizin
  PROFESSION  
vetcontact
Vetrinär
Tiermedizin
  Edutainment  
  VetAgenda  
  Presentations  
  Posters  
  ESAVS  
  Specialisation  
vetcontact
Vetrinär
Tiermedizin
  INSIGHT  
vetcontact
Vetrinär
Tiermedizin
  Congress News  
  Picture Galleries  
vetcontact
Vetrinär
Tiermedizin
  PRODUCTS  
vetcontact
Vetrinär
Tiermedizin
  Bayer  
  Boehringer Ing.  
  Novartis  
  Virbac

 
  Simply book for less...  
    

Bovine    Equine    Small Animal Practice    Swine Practice    Articles    Vetjournal    
deutsch english español polski francais
Home / WELCOME / Archiv / Bovine /     
 
Prevalence and risk factors for Giardia and Cryptosporidium in calves and cows
Giardia and Cryptosporidium Spp. are well-known to cause mild to severe gastrointestinal problems. Especially in calves these infections can become life-threatening. This brandnew study evaluates risk factors for shedding of Cryptosporidium spp. and Giardia spp. and the pravelnce of these organisms in cows and calves from western Canadian cow-calf herds. Very interesting - not only for Canada!


The primary objectives of this study were to describe the prevalence and risk factors for Cryptosporidium spp. and Giardia spp. infection in cows and calves during the calving season in western Canadian cow-calf herds.

Through the calving season of 2002, fresh fecal samples were collected from 560 beef cows and 605 calves in western Canada.

Feces were examined for the presence of Cryptosporidium spp. and Giardia spp. using a quantitative sucrose gradient immunoflourescent antibody test.

Samples were collected from mature cows on 59 farms and from calves on 100 farms.

Only 1.1% (5/560) of the cows were positive for Cryptosporidium spp. whereas 3.1% (19/605) of the calves were positive.

Prevalence for Giardia spp. was much higher; Giardia spp. was detected in 17.0% (95/560) of the cow and 22.6% (137/605) of calf fecal samples.

Data describing herd management practices, treatment and disease history, age, gender, breed and fecal consistency were gathered to assess potential risk factors associated with shedding.

The association between the risk of shedding and average precipitation from December to June and ecological region were also evaluated.

Risk factors for infection with Cryptosporidium spp. in either cows or calves could not be evaluated because the multilevel model would not converge due to the relatively low prevalence of the organism in this sample.

The prevalence for Giardia spp. was sufficient to explore potential risk factors in both cows and calves.
No risk factors were identified for Giardia spp. in beef cows following calving.

After the construction of a multivariable model, the only significant predictors for Giardia spp. presence in beef calves was dam age and calf age.

Calves born to 2-year-old heifers were 2.3 (95% CI, 1.09-5.06; P = 0.031) times more likely to be shedding Giardia spp. then calves born to cows that were 4-10 years of age.

Calves that were 9-18 days of age and calves that were > 18 days of age were 22.4 (95% CI, 5.88-88.18; P < 0.001) and 150 (95% CI, 39.72-603.19; P < 0.001) times more likely, respectively, to be shedding Giardia spp. than calves < or = 4 days of age.




Source: Gow S, Waldner C. (2006): An examination of the prevalence of and risk factors for shedding of Cryptosporidium spp. and Giardia spp. in cows and calves from western Canadian cow-calf herds. In: Vet Parasitol. 2006 Apr 15;137(1-2):50-61.



Tell a friend   |   Print version   |   Send this article

BOVINE

Subclinical ketosis in dairy cows: prevalence and risk factorsmembers
Subclinical ketosis is commonly seen especially in dairy cows and grazing systems aand can become a serious and sometimes life threatening metabolic problem. The purpose of this study was to estimate the prevalence of Subclinical ketosis (SCK) between 4 and 19 days in milk (DIM) in a grazing production system and investigate the importance of potential risk factors for SCK.

  • Metabolic profiles of cow`s bloodmembers
  • A novel ovine astrovirus associated with encephalitis and ganglionitismembers
  • Pharmacokinetics of an injectable long-acting praziquantel suspension in cattlemembers
  • Tulathromycin versus tildipirosin in experimental Mycoplasma bovis infection in calvesmembers
  • Tulathromycin versus tildipirosin in experimental Mycoplasma bovis infection in calvesmembers
  • Antibodies to bovine viral diarrhoea virus (BVDV) in water buffalo and cattle in Australiamembers
  • Postpartum anoestrus in seasonally-calving dairy farms members
  • Long-term Effects of Pyrethrin and Cyfluthrin on Bull Reproductive Parametersmembers
  • Arthroscopy of the bovine antebrachiocarpal and middle carpal jointmembers
  • Degree of corneal anaesthesia after topical application of various drugsmembers
  • Improvement of the outcome in recumbent dairy cattlemembers
  • Secondary damage in downer cows - an underestimated problemmembers


  • [ Home ] [ About ] [ Contact / Request ][ Disclaimer ]

    Copyright © 2001-2016 VetContact GmbH
    All rights reserved