Field survey on anthelmintic resistance in equine small strongyles in Norway THE possibility of resistance to anthelmintic drugs in equine small strongyles was investigated in 17 stables holding 221 horses, by using a faecal egg count reduction test. Evidence of resistance to fenbendazole was found in 14 of them, and in one of these there was also evidence of resistance to pyrantel pamoate. No signs of resistance to ivermectin were detected. IHLER, C. F. (1995) Acta Veterinaria Scandinavica 36, 135 Portosystemic communications in 32 dogs THIS paper describes the long term progress of 32 dogs which were treated surgically for portosystemic communications, and indicates how many of them required continued dietary and medical management to control gastrointestinal, urinary tract or neurological signs. Twenty-four of the dogs had no recurrence of the clinical signs of the condition. In all but one of the other eight the portosystemic communication had been partially reduced. The site of the communication was the only factor which correlated with the time for which the dogs survived. The quality of life of all the dogs was improved by the operation. SMITH, K. R., BAUER, M. & MONNET, E. (1995) Journal of Small Animal Practice 36, 435 92