May 2011

Analysis of variance for occurrence of congenital umbilical hernia in German Fleckvieh calves

Risk factors for congenital umbilical hernias were investigated in German Fleckvieh calves up for sale at livestock markets. Data from 53 105 calves were collected from 77 livestock auctions in 1996 and 1997. The overall incidence of congenital umbilical hernia was 1.8%. A significant influence on incidence was exerted by the sex of the calf, the occurrence of multiple births, the market place/market date, the sire and the sire line.

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A study of heart diseases without clinical signs of heart failure in 47 cattle

In this retrospective study, features of 47 cattle suffering from heart disease (HD) without clinical signs of heart failure (HF) were reviewed. The most common reasons for referral were respiratory problems (n =14), anorexia (n = 13), fever (n = 10), and lameness (n = 9). Thirty-nine animals were tachypneic. In 31 cases, cardiac auscultation revealed abnormalities. The final diagnoses were bacterial endocarditis (BE; n = 19), congenital heart disease (CHD; n = 18), pericarditis (n = 8), cardiomyopathy (n = 1), and lymphoma (n = 1). Echocardiography was performed in 39 cases.

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Predictive Values For Clinical Signs Of Abomasal Ulcer Disease In Adult Dairy Cattle

A 12-month prospective study was performed to determine the predictive values for clinical signs of abomasal ulcer disease in a hospital population of 296 adult dairy cows which were believed to have gastrointestinal dysfunction. There were 26 ulcer-positive cows (prevalence 8.8%). The occult blood test was a more reliable indicator of abomasal ulcer disease than were the abdominal pain or anemia tests. Only three ulcer-positive cows were negative for all three tests.

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Control of Bovine Viral Diarrhea Virus in Ruminants

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Weak Calf Syndrome Or Bvd Fetal Infection

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BOVINE VIRAL DIARRHEA (BVD)

What is Bovine Viral Diarrhea?


Bovine Viral Diarrhea (BVD) is a disease of cattle caused by the Bovine Viral Diarrhea Virus (BVDV). The virus is widespread and most herds are at risk for infection. In the susceptible herd, BVD can be a serious, costly disease.

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MANAGING MYCOPLASMA BOVIS, SALMONELLA, AND BOVINE RESPIRATORY DISEASE IN FEEDLOT HOLSTEIN STEERS

A lot of the questions coming over the phone these days are about prevention and therapy of Mycoplasma bovis infections. They are typically in three contexts…

  • multiple sites of arthritis following a respiratory outbreak,
  • ear infections (usually in small calves), and…
  • isolation of M. bovis from respiratory mortalities.

 

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Ventricular Septal Defects in Cattle: A retrospective study of 25 cases

Clinical and complimentary examination, pathological findings, and outcome were reviewed for 25 heifers diagnosed with ventricular septal defect (VSD). 

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A case of patent ductus arteriosus in a holstein calf

This report describes a case of patent ductus arteriosus (PDA) which was found in a calf during an experiment on an implantable ventricular assist device. This is the first case report of PDA confirmed in the calf in Korea.

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