Why Inactive Yeast?
The cell wall separated from the cytoplasm is called yeast extract. Almost all of the cell wall is composed of carbohydrates such as glucan and mannan oligosaccharides. That is, glucan + MOS together or separately, are separate yeast extracts.
Inactive Yeast is a yeast whose enzyme system has been completely inactivated by drying at high temperatures, and is used not for fermentation, but rather for the purpose of increasing the nutritional value and regulator in the rumen. Inactive yeasts stimulate the production of fermented sugar and alcohol, enzymes, vitamins and metabolites, and the growth and development of rumen bacteria.
The basic approach in feeding cattle is based on the principle of regulation and protection of the rumen content. Feeding a cattle means regulating the rumen, feeding the bacteria in the rumen. There is a very important balance between the bacteria responsible for the digestion of nutrients and other microfauna elements in the rumen. When this balance in the rumen is disturbed, problems begin in the digestive system and rapidly affect the whole organism and cause problems that will affect fertility, milk and meat yield, such as acidosis, ketosis, fatty liver, metritis cases related to reproductive organs, mastitis and nail problems. many diseases occur.
Inactive yeasts act as a food source for acid-consuming bacteria in the rumen, increasing their number in the rumen and reducing the pH, that is, they play a preventive and regulating role in the event of ACIDOSIS.
The most important element in inactive yeast products is the protein content. The higher the protein ratio, the higher the quality of the product. Excess amount of microbial protein in inactive yeast accelerates the work of yeast in the rumen and ACIDOSIS is prevented.
GENERAL EFFECTS OF ACIDOSIS:
It causes a decrease in milk yield.
There is a decrease in the fat ratio in milk. Digestion is adversely affected in the rumen, volatile fatty acid synthesis is reduced in the rumen, and the use of ammonia decreases.
Negative energy and negative nitrogen balance occur.
Dry matter consumption decreases, yields decrease.
It is cut without eating food and drinking water.
Cellulose digestion decreases, so feed consumption decreases. Anorexia is observed in animals.
Animals’ attitudes and movements change. Appears stagnant and reluctant, constantly wants to lie down, moaning and grinding of teeth are observed.
Weaknesses are also observed in animals. Pregnant animals raise calves with weak viability. Severe diarrhea with yellow-greenish color, watery consistency, foamy and sometimes mixed with blood occurs.
Muscle tremors and groans are observed.
The gaze becomes dull and fixed, with increased salivation and a runny nose in some animals.
Liver abscesses and deaths in brain tissues are observed in animals.
Lameness and nail disorders are observed.
Premature birth, stillbirth and abortion are observed.
Failure in Reproduction is observed.
HOW EFFECTIVE IS INACTIVE YEAST FEED IN CALF FEED? :
Today, it has become necessary to provide high yields from cattle, that is, to increase production, and to protect the trust and quality of the produced product by natural means.
In general, yeasts exist in animal nutrition in two forms, active (live) or inactive (non-living). The activity shown in rumen is much more important than the active or inactive forms of yeast used as a feed supplement in animal nutrition. It is a fact that the rumen is not at all a suitable environment for living yeast cells to live. In an environment where there is no oxygen, live yeasts cannot multiply and produce enough metabolites (minerals, vitamins, enzymes) because a period of 15 hours is required for this to happen fully. However, a period of 3-5 hours in the rumen is not sufficient in this respect. During this period, a live yeast can release very few metabolites into the rumen. Live yeasts are kept in special vacuum packaging. The number of living (cell) colonies per gram and their contents are named. In the experiments, 50% of the live yeasts die at the pelleting temperature.
In inactive yeast, the unit of measure is the amount of protein. The higher the protein value, the higher the quality of the product. Inactive yeasts contain cell wall and cytoplasm composed of mos+beta glucan. They are used in all kinds of livestock farming, as they contain both the benefits of MOS and Beta glucans and the minerals, vitamins and some amino acids in the cytoplasm. Most of the benefits expected from yeast are provided by these two extracts (MOS and Beta Glucans). It is important not how long the inactive yeast stays in the rumen, but how much useful microorganisms it feeds.
Since inactive yeasts are used as an energy source by beneficial microorganisms such as Lactobacilli and Bifido in the rumen, they provide a rapid proliferation opportunity. It is clear that they are not destroyed at pelleting temperatures and in the rumen. In addition, the ability of inactive yeasts to bind toxins within the immune system is one of the most important reasons for preference in animal nutrition.