Feed additive for resisting viral diseases of pigs, preparation method and application

Abstract

The invention discloses a feed additive for resisting viral diseases of pigs, a preparation method and application. The feed additive comprises the following components in parts by weight: 2-5 parts of freeze-dried powder of yolk antibodies for resisting the viral diseases of pigs, 5-10 parts of astragalus membranaceus polysaccharides, 5-10 parts of Chinses angelica polysaccharides, 10-20 parts of Chinese wolfberry polysaccharides, and 9-31 parts of licorice root polysaccharides. The feed additive for resisting the viral diseases of the pigs, disclosed by the invention, is compounded by the freeze-dried powder of the yolk antibodies for resisting the viral diseases of the pigs and composite polysaccharides consisting of the astragalus membranaceus polysaccharides, the chinses angelica polysaccharides, the Chinese wolfberry polysaccharides and the licorice root polysaccharides, and the feed additive is added to daily feeds, so that the organism immunity and the disease resistance can be improved. Experimental results indicate that after the feed additive disclosed by the invention is added, the effect of preventing the viral diseases of the pigs is obviously improved, and is obviously better than the effect of individually adding the freeze-dried powder of the yolk antibodies or the composite polysaccharide.

Description

technical field [0001] The invention relates to a feed additive for resisting porcine viral diseases, and also relates to a preparation method and application of the feed additive, belonging to the field of feed. Background technique [0002] With the development of society and the improvement of people's living standards, more and more people are turning their attention to food safety issues. Pork is the main meat product eaten by Chinese residents, and the amount of pork raised in our country is relatively large. However, due to various conditions, the spread of porcine viral diseases is more common. [0003] At present, there are many ways to prevent and treat porcine viral diseases, mainly using western medicine, vaccination and Chinese herbal medicine. Among them, the excessive use of western medicine has brought great dietary hazards to the consumption of pig products, and drug residues have become one of the main factors affecting the safety of pig products. The ea...

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Problems solved by technology

Among them, the excessive use of western medicine has brought great dietary hazards to the consumption of pig products, and drug residues have become one of the main factors affecting the safety of pig products

The early effect of vaccination is better, but multiple vaccinations are required, the operation is troublesome, the cost is high, and it is easy to cause stress reactions in weaned pigs; moreover, the vaccine has high requirements for storage conditions, and it needs to be refrigerated at 2-8°C and kept at room temperature. It will lose its effect after a while

Chinese herbal medicine feed additives are also one of the current research directions, but because there are many types of Chinese herbal medicines, the effects of the same Chinese herbal medicines on different poultry diseases are very different, and the immune effects of Chinese herbal medicines on diseases are extremely limited, so its application also has great potential. certain limitations

Injection of egg yolk antibody is also a relatively common method, but the immune effect of a single injection of egg yolk antibody sometimes cannot meet the actual needs

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