Stricture or Atresia of the Teats 



997 



served either at the apex or the base of the teat, the intervening 



portion of the teat is nowhere exempt. 



The prognosis of atresia or stricture of the teat depends 

 largely upon the position of the lesion. The outlook is the more 

 favorable as the lesion is situated nearer to the end of the teat, 

 and becomes more serious as it is nearer the base, or when it 

 involves an extensive area in the cistern or teat canal. 



There is little danger to the life of the animal if the disease is 

 left to itself, especially if the atresia is complete. If .surgical in- 

 terference is undertaken, except under the most rigid precau- 

 tions, there is great danger of mastitis, because the veterinarian 

 cannot certainly prevent the invasion of bacteria. 



Handling. In many cases it is advisable, especially when 



« there is complete atresia at the base of the teat, to allow the 

 gland to atrophy rather than assume the risk of causing infection 

 by an operation, thereby completely destroying the affected 

 quarter, greatly diminishing the milk secretion from all the other 



\ 



a, Pomayer's teat dilator, 

 t). Aluminum dilating sounds, 

 5, 6 and 7 mm. 



c, Teat sounds of Giovanoli. 



d, Concealed teat knife. 



e, Lance-shaped teat knife, with 



probe point. American. 



f , French teat dilator. 



Fig. 143. 



g, Holland teat knife and dilator 



combined, 

 h, Wessel's concealed knife for 



dilating teat canal, 

 i, Fraun's perforator, 

 j , Teat reamer of Hug. 

 k, Teat lancet of Hug. 

 1, Teat dilator of Parmans. (Hauptner. 



