
Articles - Pig health
Interest of the serological tests related to PCV2
Given the high prevalence of the infection due to the PCV2 and its presence in healthy and sick animals, the serological tests against this pathogen have been questioned as a diagnostic test.
Salmonella contamination sources
The farms can be free from PRRS, enzootic pneumonia, atrophic rhinitis, pleuropneumonia, scabies, swine dysentery, and so on. However, why is it we are still unable to characterize farms as Salmonella-free?
Clinical case: Ascaris suum infestation in straw bedding systems
75% of slaughtered pigs had their livers discarded due to lesions characteristic of parasitic migration.
Thermographic diagnosis: Practical tools in the farm
The thermographic cameras can measure the temperature in all the image with resolutions that are equivalent to 19,200 infrared thermometers at the same time.
Salmonella contamination of feed (II): control
This chapter is intended as a roadmap for the development of a Salmonella control program for factories, a program whose aim should be to minimize Salmonella contamination, of any and all serotypes.

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African swine fever - Recognizing the disease in field
The clinical profile seen to date of ASF in Russia and neighboring countries is a typical acute disease. The animals die between 7 and 15 days post-infection and the symptoms observed include fever, huddling together due to cold, and injuries described above.
Clinical case: Reproductive failure
There was an increase of repetitions in females (at 17-28 days, cyclic and acyclic, with a repeat rate of 22%) and mucous-like, white to brown (chocolate) vulvovaginal discharge hours after artificial insemination.
Salmonella contamination of feed (I): importance
Feed is one of the risk factors in the epidemiology of salmonellosis and therefore, control of pathogens in the feed should continue to be considered an essential component of any control program for swine salmonellosis.
Vitamin D deficiency syndromes in swine (I)
Vitamin D is normally produced following skin exposure to ultraviolet-B. Since most piglets (and humans too!) are raised in climate controlled housing and born year-round, direct access to sunshine is often limited, even in the summer. Fortunately, vitamin D can be added to diets to meet the animals' need for vitamin D.
Clinical case: Unexpected findings block semen exports
The semen was destined for Japan which requires the donor boar to be tested with negative results within 60 days prior to collection for export for: Vesicular Stomatitis, Aujesky’s disease, PRRS, Brucellosis, Leptospirosis, and Tuberculosis.
ASF: A brief overview of the past, present and ...future?


African Swine Fever
Clinical case: A PRRS Case
This case starts with abortions that occur dramatically in April. They begin on Saturday the 23rd and during the following week continue until reaching 34 abortions.
Odds ratios as a field diagnostic tool
Patterns of association are quite helpful in helping focus resources whether that is time, money, or any intervention we are seeking to implement.
Clinical case: Abortion in young sows
Abortion occurred in 90% of first parity sows and in 10% of second parity sows.
Clinical case: High mortality pneumonia in the finishing phase.
Approximately 15-20 days after entering the growth phase, generalized coughing and weight loss were noted. The morbidity rate was almost 30% and the mortality rate was 4-6 %.
The Danish system adopted for the reduction of antibiotic consumption in pigs
It is not possible to compare the consumption of antimicrobials in Denmark with very many other countries, because almost none have a detailed registration on their use of antibiotics for the treatment of livestock. However, among those who collect such data, Denmark has one of the lowest levels of veterinary antibiotic use.
Filtration systems on commercial sow farms: Technical definitions and application strategies
In high-density swine regions of North America, air filtration is playing an important role in the effort to maintain PRRS free commercial sow herds


Oral fluids - Sampling
Over the last several years, new sampling, monitoring and diagnostic tools for the swine industry that are faster, simpler and more cost effective have been developed and validated. One of these techniques is the sampling and use of oral fluids (saliva) as specimens for diagnostics in swine.
Oral fluid
Oral fluid samples can at times replace traditional blood testing while requiring less labor and technical skill. Also there is clearly reduced stress for people and pigs, which is becoming important in modern food animal production.
Diarrhea in lactating piglets: differential diagnostic
Here we present a table of differential diagnosis of the most common diarrheas during lactation.
Infection in pigs due to Rotavirus
Rotaviruses are important enteric pathogens that affect newborns of several animal species. In swine, they can cause gastroenteritis in piglets.
Coccidiosis
Although pigs can be infected with different species of coccidia, in suckling piglets the most important disease caused by enteric protozoa is coccidiosis due to Isospora suis.
Clostridia
The genus Clostridium includes numerous species of anerobic bacteria with large rod-shaped forms, spore makers, and producers of extremely potent and diverse toxins that are almost always responsible for the diseases they cause.

