2007 Volume 44 Issue 2 Pages 31-39
Fermented liquid feed (FLF), which was designed for growing-finishing pigs based on nutritional requirements, was prepared using by-products of food processing such as bread crusts, potato peelings, potato chip crumbs, jam residue, green-tea sullage, bean curd refuse, and other ingredients. FLF was fermented for 20hr at 33°C using Lactobacillus plantarum A305 as a starter. After fermentation, the concentration of lactic acid bacteria in the FLF reached 109 cfu/g and the pH value of the FLF decreased to 4.2.
A feeding experiment was carried out to examine the difference in growth effects between formula feed (FF) and FLF. In the experiment, 11 pigs were used. They were divided into two groups based on weight. A control group was fed FF and an experimental group was fed FLF, ad libitum for 16 days. The average daily weight gain (DG) for the control group and the experimental group was 965g/d and 1,207g/d respectively (P<0.05). The growth performance of pigs fed FLF increased in proportion to nutritional intake, and the feed conversion ratio calculated based on the total dry matter intake of the experimental group fed FLF (2.96) was superior to that of the control group fed FF (3.16) in the experiment.
