[Drug resistance of bacterial strains isolated from sows with the clinical picture of mastitis-metritis-agalactia].

The disk method with Ericson and Bauer's solid nutrient media were employed to ascertain the drug resistance of a total of 54 strains of Escherichia coli, 25 strains of Staphylococcus aureus, 11 strains of Streptococcus pyogenes, 7 strains of Corynebacterium pyogenes, 7 strains of Streptococcus uberis, 2 strains of Streptococcus agalactiae, and 1 strain of Streptococcus disgalactiae isolated from utero-cervical exudate and milk samples of sows with clinical symptoms of mastitis-metritis-agalactia (MMA). It was found that gentamycin only suppressed 100 per cent of the strains. So far as the other chemotherapeutic agents were concerned the organisms showed a varying extent of resistance.

[Microbial etiology of the MMA syndrome (mastitis-metritis-agalactia) in swine raised commercially].

A total of 147 uterine-cervical exudates and milk samples from 165 lobes of the mammary gland of sows with clinical symptoms of mastitis-metritis-agalactia (MMA) were studied microbiologically. It was found that greatest was the share of Escherichia coli and Staphylococcus aureus organisms taking part in the microbial etiology of the syndrome. Second ranked Staphylococcus epidermidis, Streptococcus pyogenes, and Corynebacterium pyogenes along with some aerobic sporulating bacilli.

[Effect of low vacuum on the health status of the udder in the machine milking of cows].

Investigations were carried out with two groups of cows at first lactation to elucidate the effect of low rate vacuum on the health status of the mammary gland. The clinical, cytologic, and microbiologic studies were performed in dynamic. It was found that the milking of cows with the use of 39.

[Cefacetril in treatment of clinical bovine mastitis].

The dynamic of the reconvalescence process was followed up in the udder of cows treated with the intramammary preparation Cefacetril. Complete therapeutic effect was recorded with 93.10 per cent of the cases, elimination of the infection -- with 86 per cent, and normalization of the cell content -- with 37.

[Pathohistological changes in the mammae and sex organs of sows with the MMA syndrome].

Studied were morphologically the udder and genitalia of 13 sows with the mastitis-metritis-agalactia syndrome (MMA) and of 3 normal sows from the first to the third day after farrowing. In 53.80 per cent of the cases there were histological changes of acute catarrhal and purulent mastitis, and in 23.