[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.

[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.

[Clinical, cytological and microbiological studies of the MMA syndrome].

Clinical, cytological, and microbiological investigations were carried out of a total of 793 sows in the course of 10 days after farrowing. It was found that the MMA syndrome was manifested in the first days following farrowing with higher temperature, changes in the genital organs with a purulent discharge from the first to the third day, and lesions in the mammary gland with inflammatory processes or decrease in the milk secretion. The cell content of milk of the diseased sows was higher.

[Clinical aspects and therapy of anaphrodisia in cows].

Clinical investigations were carried out of a total of 1675 cows to elucidate the reason for anaphrodisia. The functional activity of the ovaries was determined by the use of cytovaginal smears stained after Chamov. Animals with anaphrodisia on the base of ovarian hypofunction were treated with hormonal preparations of gonadotropic action, while those with persisting periodic corpora lutea--with prostanglandin or the yellow bodies were manually removed.