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[Bovine tuberculosis control in Lódź Province and its results]
Abstract:
In the years 1964--1969 the Lódź Voivodeship has been involved in the fight against the cattle tuberculosis in result of which all socialized farms have been liberated from this disease. Also, a percentage of cattle specific tuberculin reactions in individual farms has been diminished to 0.20% and the cases of tuberculosis after slaughter to 0.83%. The action had also some influence on the increase of the cattle stock. The loss has been diminished because of the sequesters of internal organs and the loss of the meat value of the animals submitted to slaughter. The fight against the tuberculosis had also an influence on the diminution of the number of the pigs and sheep infected with this disease. The course of the fight against the cattle tuberculosis conducted on the territory of the Lódź Voivodeship was dependent in some degree on its geographical place. In the administrative districts adjacent to the areas on which a great percentage of the tuberculosis was stated the course of the liquidation of this disease was slower than on the remaining terrains. Also, the action ran slower in the regions characterized by the majority of the ploughland in relation to the meadows and pastures and there where an intensive cow-shed rearing was carried out. The Lódź Voivodeship rivers, being many a time sewer ditches, did not cause the increase of the cattle morbidity. It was stated, that in the administrative districts, where the average of the animals condensation was small, the percentage of the infections with the tuberculosis at the beginning of the fighting against it was also low, however at a greater condensation of cow-shed rooms the number of infected head increased respectively. A considerable expansion of tuberculosis over the hens and also a frequent amounting to about 71% use of the cow-sheds as common rooms for the cattle, pigs and poultry caused the occurrence of cattle unspecific tuberculin reactions and led to the infections of the pigs with this disease.