01
Currently commonly used mold agent variety
â–¶ Benzoic acid and sodium benzoate:
Both benzoic acid and sodium benzoate can inhibit the activity of microbial cell respiratory enzymes non-selectively, hinder the metabolism of microorganisms, thereby effectively inhibiting the growth and reproduction of various microorganisms, and have no adverse effects on the growth and reproduction of animals. The use of sodium benzoate in feeds generally does not exceed 0.1%.
â–¶ Propionic acid and its salts:
Propionic acid is a corrosive organic acid that is a colorless, transparent liquid that is readily soluble in water. Propionates include sodium propionate, calcium propionate, potassium propionate, and ammonium propionate. Propionic acid and propionate are all acid antifungal agents, have a broad spectrum of antibacterial activity, have certain inhibitory effects on mold, fungi, yeast, etc., and their toxicity is very low, which is an intermediate product of normal metabolism of animals. It can be used as an animal and is the most commonly used anti-mold agent in feed.
â–¶ Fumaric acid and its esters:
Fumarate esters include dimethyl fumarate, diethyl fumarate and dibutyl fumarate, among which dimethyl fumarate is preferred. Fumaric acid and its esters are also acid antifungal agents, which have a broad antibacterial spectrum and can improve the taste of feed and improve feed utilization. The general use amount is about 0.2%.
â–¶ Dehydroacetic acid:
Dehydroacetic acid is a high-efficiency broad-spectrum antibacterial agent with strong inhibition of bacteria, mold and yeast development, especially for mold, and has certain antibacterial effects under acid and alkali conditions. Dehydroacetic acid is a low-toxic and anti-mold agent, generally has no adverse effects, and the dosage is about 0.05%.
â–¶ Parabens:
It has the strongest effect on mold and yeast. When parabens coexist with starch, their effects will be affected, so be careful when using them.
â–¶ Compound agent:
It refers to the combination of two or more different anti-fungal agents. For example, the anti-mold agent produced in the United States is a mixture of propionic acid, acetic acid, benzoic acid, sorbic acid, and the like. The compound anti-fungal agent has wide antibacterial spectrum, wide application range, good anti-mildew effect, small dosage and convenient use, and is a commonly used anti-mold agent in feed.
02
Reasonable application of mold agent
â–¶ The correct choice of mold agent four principles
The use of anti- agents in feeds must ensure that the animals are not allowed to cause acute or chronic poisoning and excessive drug residues under the premise of effective doses;
Should have no adverse effects such as carcinogenic, teratogenic and mutagenic;
The anti-fungal agent also does not affect the original taste and palatability of the feed. For example, organic acids such as acetic acid and propionic acid are highly volatile and easily affect the taste of the feed. Therefore, the use of salts or esters may be better.
The ideal anti-mold agent should also have the characteristics of wide antibacterial range, strong anti-mildew ability, easy mixing with feed, economical and practical.
Under normal circumstances, propionate and some compound anti-fungal agents are the first considerations, such as Lubao fine salt, Kejiba, Wanxiangbao and other products are economical and practical, quality and effect are guaranteed.
â–¶ Flexible use of mold based on actual conditions such as moisture content.
There are many factors affecting the effect of anti-fungal agents, such as the solubility of anti-fungal agents, the pH of the feed, the moisture content, the temperature, the content of sugar and salt in the feed, the degree of feed pollution, etc., but mainly based on the season and moisture content. Decide whether to use and specific usage.
In the dry and cool seasons such as autumn and winter, the feed moisture is below 11%, generally do not need to use ;
When the moisture content is above 12%, the anti-fungal agent should be used, and the moisture in the feed is high and the amount of the anti-fungal agent should be increased in the high-temperature and high-humidity season, so as to ensure a good anti-mildew effect.
â–¶ Anti- agent and antioxidant combined with
The moldy process of the feed is also accompanied by the oxidation of nutrients in the feed. Generally, the fungicide should be used together with the antioxidant to form a complete anti-mold and anti-oxidation system, so as to effectively ensure the extended storage period.
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