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Chemical composition and instructions for the use of feed yeast for cattle

Chemical composition and instructions for the use of feed yeast for cattle


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The use of fodder yeast in cattle breeding is an important point for farmers who want to fully feed livestock, maintain their health and reduce the cost of keeping. Yeast is not an independent type of food; it is added to the usual compound feed to accelerate weight gain, increase milk yield, and cattle productivity for meat. When choosing, using and storing the additive, it is important to follow the instructions given by the manufacturer.

How feed yeast is made

Fodder yeast is a fungus that has only a positive effect on the organisms of animals and humans, due to which they are used in various spheres of life. The feed products used for feeding cows are brown granules or powder mixture with a pronounced yeast aroma. The biomaterial is produced in specialized workshops, where the optimum temperature and humidity parameters are maintained.

Cultures are grown under conditions of maximum nutrient medium enriched with oxygen. During production, GOST 20083-74 is observed, the finished additive is dried, packaged, then packaged and sent to points of sale.

The composition of the product

A yeast product is made from organic residues:

  • sunflower seed skins;
  • straw, reeds;
  • corn cobs;
  • waste left over from wood production.

The highest quality additives are considered to be made with the addition of alcohol stillage. The composition of feed for cattle contains a small amount of protein compounds, therefore, feed yeast is recommended to be used in cattle nutrition to compensate for the deficiency of minerals and organic substances.

The chemical composition of the product includes:

  • protein - 31-37%;
  • protein - 37-52%;
  • fiber - 1.3-2.8%;
  • fats - 1.8%;
  • dietary fiber - 1.8%;
  • wood ash - 10%.

The product contains vitamins of group B, E, D, K, which support full-fledged digestive function, and substances necessary for assimilation and high absorption of vitamins, microelements, proteins, carbohydrates.

Benefit and harm

It has been established that the norm for cattle is the consumption of 110 grams of protein per unit of feed, and when the cattle are fed with conventional compound feed, only 85 grams of protein is present on the menu. This leads to poor assimilation and digestion of food, a decrease in productivity, weight gain and milk yield.

Benefits of using feed yeast in barns:

  • acceleration of weight gain by young animals;
  • increasing production indicators of cattle - milk yield, increasing the volume of slaughter weight;
  • normalization of digestion processes;
  • a positive effect on the composition of the gastric and intestinal microflora;
  • improving the quality of semen in breeding bulls;
  • strengthening the immunity of livestock and preventing the defeat of infectious diseases;
  • increasing the nutritional value of food;
  • reduction in the consumption of compound feed, which favorably affects the cost of raising cattle.

Protein and protein are vital for cows, but getting enough of them only on plant foods is difficult.

Expert opinion

Zarechny Maxim Valerievich

Agronomist with 12 years of experience. Our best summer cottage expert.

Amino acids such as tryptophan, methionine, lysine contained in yeast are not produced by the animal's body, but their lack negatively affects all vital processes.

There are no disadvantages to additives. But if the farmer consistently exceeds the manufacturer's recommended dosage or uses substandard products, the cows may develop obesity or digestive dysfunction.

Varieties of feed yeast

Products can be divided into three groups, based on the way they are produced:

  1. Hydrolysis - waste from the manufacture of food and wood is used in production. Under intense acid and temperature exposure, mushrooms multiply in the raw material. A ton of hydrolyzed yeast contains 240 to 450 kilograms of protein. The product has a yellowish or brownish tint and is produced in granular or powder form.
  2. Classic - are considered the most useful for animals, since they include a large mass of proteins (about 400 kilograms per ton) and a minimum amount of crude protein. They are produced using vinasse. The product is in the form of a flaky powder, also available in granular form.
  3. Concentrated protein-vitamin (BVK) - fungi colonies are grown on the waste left after the processing of petroleum products, on organic alcohol and natural gases. BVAs include the maximum amount of protein (up to 800 kilograms per ton) and vitamin B.

During manufacture, many manufacturers subject the finished product to ultraviolet treatment. This increases the concentration of vitamin D in it, and the natural value of vitamin B is reduced to nothing. Farmers need to consider this fact when purchasing a product.

Application for cows

It is important for animals to receive the required daily dose of protein, which is why the feed product from yeast should be introduced into the menu:

  • cows with high milk yield (more than 20 liters) during lactation and milk production. The protein contained in the supplement helps to normalize the microflora in the rumen and stabilize its functions, prevent acidosis, and maintain stable lactation. Daily portion - 500-800 grams;
  • cows consuming sour silage, fresh and sour pulp - to preserve the digestive function, protect it from the pathological effects of acid, improve intrauterine calf formation, and increase milk yield. One cow can be given from 500 grams to 1 kilogram of supplements per day;
  • chaff-fed dairy cows - to maintain optimal acidity, improve food digestion and absorption of nutrients. The daily dose of the supplement for a cow is 1 kilogram;
  • bulls-producers - the product begins to be given 2-3 weeks before covering the cows or collecting material for fertilization, 0.5-0.8 kilograms per day and feed them until the end of the mating period;
  • young animals - with inadequate nutrition or feeding with low-quality hay. Calves are given 0.2-0.3 kilograms of yeast per day, as the calves grow up, the dosage increases.

According to the instructions, the yeast must be added to the main grain and combination mixtures.

When stirring, if the yeast was added a little more than necessary, nothing terrible will happen, since its use does not harm the animals.

How to choose and store

Good yeast should have a pleasant yellowish-brownish tinge, pronounced yeast aroma, and be dried. No rot or mold elements allowed.

Yeast storage conditions:

  • temperature - from -30 aboutFrom to +30 aboutFROM;
  • darkened room, without access to moisture;
  • away from chemical compounds, poisons, since yeast is able to absorb pathological evaporation.

If the farmer suspects that the yeast is expired, rotted, or noticed moldy blotches in the bags, it is better not to purchase such a product. It will not benefit livestock, but it can provoke the development of serious diseases of the gastrointestinal tract.

The shelf life of feed yeast is 6 months, after which it is not recommended to give it to cows. Fodder yeast has long won the trust of farmers by increasing livestock productivity and milk yield, improving the quality of meat and milk, and maintaining the health of animals at the proper level. The use of the product in animal husbandry also helps to save finances and increase the profitability of the farm.


Watch the video: When to introduce Hydroponic Fodder to your Livestock? (February 2023).