Composition with immunization-enhancing or prevention effect on white spot syndrome and application thereof
A technology to enhance immunity and syndrome, applied in the direction of application, drug combination, medical preparations containing active ingredients, etc.
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Embodiment 1
[0055] Example 1. Investigation of the Immunological Activity of the Sample (DF) and the Palatability of the Sample
[0056] In order to explore natural substances that have an immune-enhancing effect on white spot syndrome infected with prawns, the effects of extracts of cereals, Chinese herbal medicines, and seaweed on the immune activity against prawns were investigated. In this experiment, prawns with an average weight of 10.49±0.63g and a body length of 110.89±2.99mm were put into a fish tank with a circulation filter, 10 each, and fed with feed added with various medicinal material extracts. After 10 days of breeding, The results of the blood collection and NBT (superoxide production) evaluation method, and grains are shown in figure 1 , Chinese herbal medicines are expressed in figure 2 , algae expressed in image 3 .
[0057] Cereals are provided with 9 kinds of extracts such as coix coix and barley, among which 6 substances with good immune effects are expressed i...
Embodiment 2
[0065] Manufacture of Example 2 sample (DF)
[0066]Collect natural substances, 6 kinds of grains: corn, barley, coix, millet, buckwheat, wheat (Zhaoan, Fujian Province), 25 kinds of Chinese herbal medicines: Divine Comedy, malt, rhubarb, Huoxiang, licorice, perilla, Atractylodes macrocephala, Chuanxiong, Scutellaria baicalensis, three white grass, hawthorn, angelica, red ginseng, medlar, berberine, astragalus, schisandra, cassia, artemisia annua, Poria cocos, Chuanpu, dogwood, woody, akebia, forsythia (Zhaoan, Fujian Province ), 4 kinds of seaweed: kelp, sargassum, pine algae, and seaweed (Zhaoan, Fujian Province) are used as objects. After extraction by hot water extraction and organic solvent extraction such as ethanol, feed is added. In order to eliminate heavy metals, the selected 35 dry samples were immersed in 5% natural calcium water for 20 minutes, washed with purified water, 1L alcohol was added to 100g of each sample, and extracted at a temperature of 70-90°C for 2 ...
Embodiment 3
[0069] Embodiment 3 Adding different concentrations of DF feed to induce feeding effect
[0070] In order to investigate the effect of adding different concentrations of DF feed on inducement intake, add DF 0.2g, 0.4g, 0.8g to 1kg of general feed, and when feeding to prawns, the daily feed intake is as follows: Figure 4 shown.
[0071] Feeding the control group without adding DF, the daily feed intake is 0.16±0.02, and feeding the test group with DF 0.2g / kg, the daily feed intake is 0.25±0.02, which is higher than the daily feed intake of the control group. significantly increased (p<0.05). The daily feed intake of the test group fed with DF 0.4g / kg was 0.28±0.03g, which was significantly higher than the daily feed intake of the control group (p<0.01). In the experimental group, there was some increase, but no significant difference was shown. The daily feed intake of the test group fed with DF 0.8g / kg was 0.30±0.03g, which was slightly higher than that of the test group f...
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