Microzyme is fragmentary path of bowel of consist in animal is microbial in community, good oxygen, contain a lot ofprotein and a variety of B a group of things with common features vitamin, not heat-resisting. The microzyme that our country allows to regard feed as additive has yeast of silk of holiday yield protein and brew yeast (announcement of Ministry of Agriculture the 318th, 2006) .
Light adds up to a bacterium to basically be used in aquiculture, use as feed additive or water quality clarifier. The light that our country allows to regard feed as additive adds up to a bacterium to have marsh bacterium of red false single born of the same parents (announcement of Ministry of Agriculture the 318th, 2006) .
The gemma lever fungus that the bacterium individual plant that onefold bacterium belongs to microbial additive to include distinct effect adopts different scale and combines is microbial grow accelerant, and the fungus of lactic acid lever of similar combination is microbial additive. In producing application actually, serving as additive by onefold bacterium individual plant truly is scarcer, use with the form of compound bacterium more. Compound bacterium belongs to microbial additive to combine composition or lactic acid bacili to belong to by gemma bacili and lactic acid bacili normally combine composition with yeast, have very good synergism and better use the effect.
Mechanism of microbial additive action
The small ecological balance of the action of microbial additive and enteron is concerned, its action mechanism basically reflects in the following respects:
Maintain enteron bacterium group normalization
In small ecosystem, advantage bacterium group to whole bacterium group have decision effect, once lose an advantage to plant group, criterion this are small ecological balance is maladjusted. Use microbial additive to pass compensatory some specific microbial, bacterium of bacterium of dimension hold beneficial group advantage position, carry bacterium group normal. Microbial additive adding in feed is to pass the following 4 kinds of means maintain the dominant position of beneficial bacterium: ① enrichs beneficial advantage bacterium directly group, make in establish of alvine path decided at the higher level but not officially announced; ② and nutrient of harmful bacterium competition or competition adhere to place, form action of biology protective screen; ③ and nurture of competition of bacterium of cause of disease are qualitative, consume the oxygen inside enteron, create the environment of adverse and harmful bacterium; ④ produces the product of adverse and harmful bacterium, produce lactic acid for example, oxidize too hydrogen, bacteriolysis is enzymatic wait with the material that fight bacterium.
Adjust the animal digests metabolization
Basis already some studies achievement thinks: ① is beneficial microbial can produce all sorts of assimilation enzymatic (for example microzyme and gemma bacili can produce enzymatic) of lipase, amylase and albumen, digest feed nutrition composition directly, a bit biology still can arise decompose complex carbohydrate enzymatic or establish acid is enzymatic, improve enteron to feed rotten physics characteristic or eliminate ration to defy nutrient factor mediumly, raise feed to change directly rate, the growth of stimulative animal and production. ② beneficial bacterium can produce vitamin of B a group of things with common features, for example biology element, provide nutrient material. In addition, microbial additive can raise level of the antibody inside animal body or the active that increase huge bite cell, enhance airframe immunity function.
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