Effect Of Earthworm Powder On Production Performance And Biochemistry Indexes Of Growing Pig

To relieve the environmental pollution by the faeces of swine, we used the faeces to fe ed earthworm. If we did like this, not only realize the high utilization of swine faeces, but a lso can collect earthworm, which is a kind of protein feed to realize the cyclic utilization of swine-faeces-earthworm meal-swine. The objective of this experiment was to study the eff ects of soy-bean meal replaced by earthworm meal on production performance and blood b iochemical indexes of pigs. One hundred and twenty Landrace× Large White pigs with sim ilar source and health were divided into 4 groups. The pigs of control group(group I) were fed the basal diet of core-soybean meal, and the pigs of groups II to IV were fed the basal d iet which 1 %,3 % and 5 % crude protein was replaced by earthworm meal, respectively. T he feed intake and residual feed were record every day, then calculated the daily gain(DG)and economic benefit. The blood samples were collected from auricular vein of 6 pigs chos en randomly in each group, and then the serum samples were collected to measure blood bi ochemical indexes and immunity indexes. The resulted were showed as follow:1 Effects of soy-bean meal replaced by earthworm meal on production performanceCompared with the control group, the DG of pigs in groups III and IV were increased by 1.12 % and 14.61 %(P<0.05), respectively; the feed to gain ratio and economic benefit of group IV was increased by 12.15 %(P<0.05) and 17.91 %, respectively.2 Effects of soy-bean meal replaced by earthworm meal on blood biochemical indexesCompared with the control group, the concentration of total protein and globulin of bl ood in other group were no significant; the concentration of albumin of blood in groups II t o IV were increased by 7.71 %,10.88 % and 12.19 %, respectively. The increasing extent o f urea nitrogen concentration of blood in other groups were lower than that in control grou p.3 Effects of soy-bean meal replaced by earthworm meal on enzymatic activity of bloodThe cholinesterase activity of group IV was higher and the decreasing extent of gluta mic-pyruvic transaminase activity in other groups were lower than that in control group. T he glutamic oxalacetic transaminase activity of groups III and IV were lower and the glutat hion peroxidase activity of group IV was higher than that in control group.Compared with the control group, the catalase activity in groups II to IV were increased by 2.56 %, 85.44% and 10.88 %, respectively. Compared with the first day, the alkaline phosphatase activity in groups I to IV were decreased by 55.01 %, 48.66 %,44.57 % and 43.86 %; the superoxi de dismutase activity in groups I and II were decline, but the superoxide dismutase activity in groups III and IV were increased by 8.08 % and 10.61 %.In conclusion, the feed of soy-bean meal replaced by earthworm could enhance produ ction performance of pigs and economic benefit. It could improve the immune function and disease resistance of pigs by decreasing the urea nitrogen concentration, glutamic-pyruvic transaminase activity and glutamic oxalacetic transaminase activity.