322 



BOVINE OBSTETRICS 



■ Trusses are variously shaped. They mostly consist of 

 ropes lying on either side of the vulva and pressing against it, 

 secured to a siircingle. The adjoining drawings show some of 

 those employed (figs. 75, 77). 



Lund constructed a very practical truss (fig. 76). Brauer's 

 truss is used in cows where the vulva and anus lie deeply 

 between the ischial tuberosities. The instrument for this 

 purpose is well concaved. Although these trusses are com- 

 monly used in practice, I prefer to suture the vulva. The latter 

 is more likely to prevent a prolapsus, when the stitches are 



Fig. 77. — Truss commonly used in Holland. 



inserted sufficiently far from the free border of the vulva, than 

 trusses which are easily displaced and get loose when the cow 

 strains, and it happens that a portion of the inverted uterus 

 passes by the truss. Another great disadvantage of trusses is 

 the fact that they must remain for several days, eventually 

 becoming a mass of manure. 



AMPUTATION OP THE UTERUS (aMPUTATIO UTEEI). 



Indications. — 1. Gangrene of the uterus. Previous to this 

 it was pointed out that not every black spot upon the uterine 



