| Two experiments are include in the thesis. The first experiment is screening the immunity through the white mouse experiment to select the best group, simultaneously, Carries on the toxicology examination. The second experiment discussed the effects of the Chinese herbal feedstuff additive feeds finishing pigs to substitute antibiotic use. Experiments 1 Through rearing mice from two groups of Chinese herbal feedstuff additive select a better growth-promoting effect of the immune group, simultaneously,Carries on the toxicology examination.Experiments 2 Discussed the effects of the Chinese herbal feedstuff additive feeds finishing pigs, pigs were investigates 90 seghers pigs(50kg of body weight) were randomly assigned five treatments. Each treatment included 15 pigs that were subdivided equally to three pens. Treatments consisted of Antibiotic Group (AG),Non-antibiotic Group (NAG), Chinese herbal medicine 0.5% group(CHM0.5),Chinese herbal medicine 1.0% group (CHM1.0),Chinese herbal medicine 1.5% group(CHM1.5). Experiments were carried out feeding, slaughtering and meat quality analysis. Results were as reported below:(1)Feeding trial: Average daily gains, Chinese herbal medicine 1.0% group(CHM1.0) were increased 11.03% than non-antibiotic group (P<0.05), Compared with NAG, Chinese herbal medicine 0.5% and 1.5% have not significant differences (P>0.05); Average daily intake, Compare with antibiotic group and non-antibiotic group, Chinese herbal groups have the trend of rising; Feed / Gain, There are no significant differences in each group, but the lowest feed / gain is Chinese herbal medicine 1.0%group; Compared with antibiotic group and non-antibiotic group, there are significant differences in scouring and mortality rates(P<0.05).(2)Digestion trial: Compare with non-antibiotic group, Chinese herbal medicine 0.5% and 1.0% group have significant difference on crude protein digestion (P<0.05); the test group of fat digestibility was no significant difference (P>0.05); Ca digestibility of Chinese herbal medicine1.0%group and antibiotic group were extremely significant difference with non-antibiotic group(P<0.01); P digestibility of Chinese herbal medicine 0.5% and 1.0% group and antibiotic group has increased 29.80%,30.16% and 29.87% than non-antibiotic group(P<0.01).(3)Blood index: Serum total protein (TP), Chinese herbal medicine 0.5% group was significant differences with non-antibiotic group(P<0.05); Serum albumin(ALB) of antibiotic group,Chinese herbal medicine 1.0% and 1.5% group has increased 10.17%,20.28% and 15.55% than non-antibiotic group (P<0.05); Urea nitrogen (BUN) content of Chinese herbal medicine 0.5%,1.0% and 1.5% group has decreased 36.15%,26.42%,48.41%,40.55%,25.80% and 14.50% than non-antibiotic group and antibiotic group (P<0.05);Serum AKP activity of 0.5%,1.0% and 1.5% Chinese herbal groups has increased 50.4%,32.89%,50.23%,32.71%,25.25% and 10.65% than non-antibiotic group and antibiotic group (P<0.05).(4)Blood immune indicators: IgA of 0.5%,1.0% and 1.5% Chinese herbal groups and antibiotic group were significantly higher than non-antibiotic group (P <0.01).In Serum IgM, 1.0% and 1.5% of Chinese herbal medicine group were increased 50.0% and 54.54% over non-antibiotic group(P<0.05).(5)Carcass indicators: The test group in the carcass weight of finishing pigs, Carcass length, back fat thickness and the rate of slaughter there is no significant difference (P> 0.05); Lion-eye area, compare with antibiotic group and non-antibiotic group, Chinese herbal groups have the trend of rising; In carcass lean, 0.5%,1.0% and 1.5% of Chinese herbal medicine group were increased 3.0%,4.73% and 3.46% over non-antibiotic group (P<0.05);Fat were lower 4.62%, 7.51% and 4.20% than non-antibiotic group (P<0.05).(6)Pork Quality indicators: Compared with antibiotic group and non-antibiotic group, Intramuscular fat of the Chinese herbal feedstuff addictive group were increased by 44.17%(P<0.01),41.56%(P<0.01),69.33%(P<0.01),66.26%(P<0.01),38.04%(P<0.01),35.54%(P<0.01);In L flesh, there is significant difference between 0.5%,1.0% of Chinese herbal group and non-antibiotic group (P<0.05);In a flesh, There are significant difference between 0.5% Chinese herbal group and other test group(P<0.05).From the above analysis the following conclusions:1. Through the feeding trial in mice , Chinese herbal medicine group 1 is better Chinese herbal medicine group 2 on growth-promoting effects.2. Toxicological experiments in mice proved that the safety of Chinese herbal medicine group 1 is no toxic.3. In this study, Chinese herbal medicines additives in finishing pigs improved growth rate and feed conversion.4. Chinese herbal additives can significantly improve finishing pig carcass lean meat percentage,intramuscular fat content, reducing the rate of carcass fat to improve the pork flavor, to improve the quality of the pork carcass.5. Chinese herbal additives to enhance the effect of fattening pigs and the immunity level of resistance, so that more healthy pigs.6. In this study, Chinese herbal medicine group and the effect of a considerable group of antibiotics is basically an alternative to antibiotics, green pollution-free pork production is feasible, the volume of Chinese herbal medicine in the additives, of which 1.0% of the volume of the best additive.
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