Chapter X. 

 MATERNAL DYSTOKIA. 



Deformity of the Pelvis. 



Complete deformity of the pelvis is rare in our 

 subjects. It is most frequently observed in the Pig, 

 due, generally, to rachitis. 



Fractures. 



Callosities, resulting from fracture of some of the 

 pelvic bones, may give rise to difficult parturition. 



Exostoses. 



When these occur on the bones of the pelvis, and 

 project so as to cause narrowing of the passage, they 

 may become an obstacle to the delivery of the foetus. 



Treatment. — This will depend upon circumstances, 

 and expediency. If delivery be impossible, without 

 serious injury to the parent, and the latter fit for food, 

 then it may be advisable to call in the butcher. Or, if 

 the animal is in poor condition and unfit for hutching, 

 artificial abortion may be produced while the foetus is 

 .small enough to easily pass through. Should par- 

 Tturition have commenced, it will then be necessary to 

 resort to surgical or obstetrical measures before 

 delivery can be effected. 



The indications are : forcible extraction of the 



foetus through the narrowed passage ; widening of the 



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