. Fia. 132—Cystic Corpora Lutea. /, 2, Twin corpora lutea of pregnancy ; j, ?a, 4, 5, cystic corpora lutea. chronic salpingitis. In fact a large percentage of cows and heifers persistently sterile because of salpingitis suffer sim- ultaneously from cystic degeneration of the corpus luteum. When the ovary becomes adherent within the pavilion of the tube, cystic degeneration of the corpus luteum is essentially constant. The bacteriology of the cystic degeneration of the corpus luteum has been but scantily studied. Thus far the studies have revealed chiefly the presence of a streptococcus of the


. Fia. 132—Cystic Corpora Lutea. /, 2, Twin corpora lutea of pregnancy ; j, ?a, 4, 5, cystic corpora lutea. chronic salpingitis. In fact a large percentage of cows and heifers persistently sterile because of salpingitis suffer sim- ultaneously from cystic degeneration of the corpus luteum. When the ovary becomes adherent within the pavilion of the tube, cystic degeneration of the corpus luteum is essentially constant. The bacteriology of the cystic degeneration of the corpus luteum has been but scantily studied. Thus far the studies have revealed chiefly the presence of a streptococcus of the viridans group. In many sterile animals, the cystic degeneration of the corpus luteum advances somewhat rapidlj% causing no ma- terial enlargement of the corpus luteum but gradually de- stroying the lutein tissue, until finally it no longer inhibits


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectveterin, bookyear1921