CSI-Dairy: Nabbing the culprits behind calfhood pneumonia

Numerous ‘culprits’ exist on dairy farms, robbing herd performance and injuring the dairy’s bottom line. Identifying and arresting the offender isn’t always easy, and often requires a full investigation, gathering and analyzing evidence on the farm and in the lab. Uncovering the source of pneumonia in calves can be a difficult challenge.


By Robert Lynch


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Respiratory Disease of the Bovine Neonate

Respiratory disease is a constant challenge for dairy replacement heifer rearing systems, and is responsible for 21.3% of mortality in preweaned calves and 50.4% of deaths in weaned heifers.1 There are many negative long-term consequences for survivors of subclinical, clinical, and chronic calf pneumonia including poor growth, reproductive performance, milk production, and longevity.2–4 These calves also become sources of infection for other calves, and can cause outbreaks after weaning in group pens.5 Contamination of the environment with bacterial and viral pathogens is the obvio

Bovine Respiratory Disease

Informative Bovine Respiratory Disease video covering how the infection spreads and treatment benefits of RESFLOR GOLD.

Reduced likelihood of bovine coronavirus and bovine respiratory syncytial virus infection on organic compared to conventional dairy farms

The prevalence of antibodies to bovine coronavirus (BCV) and bovine respiratory syncytial virus (BRSV) infections was studied in 20 conventional and 20 organic dairy herds. The organic farms had produced ‘certified’ milk for at least 2 years. On two occasions, with a 1-year interval, 699 serum samples from 624 peri-parturient cows were tested by ELISA for antibodies to BCV and BRSV. Accompanying data relating to the sampled animals were collected in order to identify potential factors associated with increased antibody prevalence.

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Bovine Respiratory Syncytial Virus

This article discusses various aspects of BRSV, its epidemiology, pathogenesis, diagnostic tests, and select topics on immunity and vaccination.

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The Association Between Serological Titers in Infectious Bovine Rhinotracheitis Virus, Bovine Virus Diarrhea Virus, Parainfluenza-3 Virus, Respiratory Syncytial Virus and Treatment for Respiratory Disease in Ontario Feedlot Calves

A seroepidemiological study of the association between antibody titers to infectious bovine rhinotracheitis, parainfluenza-3, bovine virus diarrhea and bovine respiratory syncytial viruses, and treatment for bovine respiratory disease was conducted. A total of 322 calves from five different groups were bled on arrival, then one month later all cases (cattle treated for bovine respiratory disease) were rebled together with an equal number of controls (cattle not treated for any disease).


Herd Health Programs For A Beef Cattle Enterprise

Often, we tend to think of a health program as simply a vaccination schedule. The reality is that vaccinations are important but other management factors will play a larger role in the health status of our herd and the financial success of your beef cattle enterprise. Reproductive management, nutrition, parasite control, and implant protocols are an integral part of our success and have a large impact on the health status of the herd. If we look at total production, we see that integrating management and health increase our financial success.

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