Pruteen,a new source of protein for growing pigs. II. Feeding trial: Growth rate,feed utilization and carcass and meat quality

Pruteen, a bacterial protein (Imperial Chemical Industries, Billingham, Cleveland, Great Britain) was tested as a sole protein supplement in diets for growing pigs based on barley and fine wheat offal replacing white fish meal.The protein supplements were tested at a ‘standard’ and a ‘marginal’ level of supplementation, fed throughout the growing periods of either pork pigs (20–58 kg live weight) or bacon pigs (20–87 kg live weight).The growth rate and the feed:gain ratio were similar in pigs which received either the Pruteen or the white fish meal diets.Carcass dissection and extensive meat quality studies (raw and cooked) revealed no differences between pigs fed Pruteen or white fish meal.