Catgut suture treatment produces roughly twice the stitch-holding time of plain catgut, but greater tissue inflammation occurs. Full tensile strength is extended to 18–21 days. It is brown rather than straw-colored, and has improved smoothness due to the dry presentation of the thread (plain catgut is wet). It is otherwise similar to plain catgut. Fast catgut suture is heat-treated to give even more rapid absorption in the body. The first known absorbable sutures were made of the intestines of sheep. The manufacturing process was similar to that of natural musical strings for violins and guitar, and also of natural strings for tennis
Catgut (horse) in a five furlong Subscription Plate. The race was for two and three-year-olds with the provision that the winner would be available for sale at a price of 350 guineas. Catgut started second favourite in a twelve runner field but finished unplaced behind Soota, a black filly owned by Mr Lake. Catgut was retired from racing to become a broodmare at the Duke of Grafton's stud. She produced five foal by stallions including Election, Partisan and Woful before being sold to Mr S L Fox in 1829. The following pedigree assumes that Catgut was sired by Comus Catgut (horse) Catgut