Diagnostics of tuberculosis and differentiation of nonspecific tuberculin reactions in animals

Abstract

Tuberculosis is a serious disease of humans and animals, caused by bacteria of the Mycobacterium genus. This leads to complications in the life of the sick person, and subsequently to death. The cattle, who have been diagnosed with this bacterium, are usually sent to the slaughter, with the result that their livestock is reduced. Mycobacteriosis is also a disease, after determining which cattle are most often sent to slaughter. Such a reduction in livestock numbers has a negative effect on the economy. Of the 300 samples from the animals, 25 cultures of atypical bacteria responding to tuberculin were isolated. A series of tests – intravenous tuberculin test, ophthalmic test, palpebral test, “ZhAT” test, showed that most of the tuberculosis changes in cattle were found in regional lymph nodes more often than in internal organs. In healthy for tuberculosis cows, at the age of 4–9 years, seasonal nonspecific sensitivity to tuberculin is observed. Implementation of the developed express method of glutaraldehyde test on farms in healthy tuberculosis will speed up the diagnosis of tuberculosis and mycobacteriosis in animals that reacted to tuberculin and will exclude short-term nonspecific sensitization of their organism to tuberculin. The introduction of this methodology can be used to diagnose and clearly differentiate the diagnoses of “tuberculosis” and “mycobacteriosis” in cattle. This will cure part of the livestock and reduce the amount of slaughter.

Multidrug-resistant strains of Mycobacterium complex species in Egyptian farm animals, veterinarians, and farm and abattoir workers

“…Culture of isolates from lymph nodes of tuberculin positive animals was superior to direct microscopic examination. This observation is consistent with other studies that attributed results to the numbers of bacilli in examined samples [15,16].…”

Determination of the causes of allergic reactions to tuberculin in cattle

“…У подальшому цей феномен спостерігався у багатьох країнах світу. Проведеними дослідженнями з вивчення таксономії мікобактерій, ізольованих у різних країнах світу та на різних континентах, міжнародною робочою групою було встановлено, що збудники туберкульозу відрізняються від інших видів мікобактерій за вірулентністю, а деякі з них мають загальні антигени з атиповими мікобактеріями, незалежно на якому континенті їх було виділено [5][6][7][8].…”

Linebreeding as a system of stock breeding to improve the productive qualities of horses of the Kushum breed

“…These data indicate the potential for further improvement of the breed on such an economically useful trait as live “weight”, which gives breeders the opportunity to further increase live weight, carcass weight and slaughter yield of meat (Mylostyvyi et al, 2021). In order to meet the ever‐increasing ecological, social and market requirements, the Kushum horse must constantly improve in the direction of increasing its massiveness, improving its performance, improving breeding, productive and adaptive qualities, which, when crossed with local horse breeds, provide animals with high productivity and adaptability to the harsh grazing conditions (Basybekov et al, 2018). In this regard, the development of breeding methods for the further improvement of the breeding and productive qualities of the Kushum breed in conditions of year‐round grazing is of scientific and practical importance (Putnová & Štohl, 2019).…”