Application of Active Dry Yeast in Animal Breeding

      Active Dry Yeast (ADY) is often used as a functional additive in animal husbandry, mainly composed of active brewing yeast (Saccharomyces cerevisiae). Its functions include nutritional supplementation, intestinal health regulation, and immune enhancement. The following are its specific functions and precautions:

1、 Main function

promote digestion and absorption

      Enzyme activity: Yeast secretes amylase, protease, etc., which help break down complex carbohydrates and proteins in feed and improve nutrient utilization.

      Probiotic effects: Yeast cell walls contain β - glucan and oligosaccharides (MOS), which stimulate the proliferation of beneficial bacteria (such as lactic acid bacteria) and inhibit the colonization of pathogenic bacteria (such as Escherichia coli).

Improve intestinal health

      Regulating microbiota balance: As a probiotic, live yeast can stabilize intestinal pH and reduce the risk of diarrhea (especially in young animals and under stress).

      Enhance barrier function: MOS can bind to the flagella of pathogenic bacteria, preventing them from attaching to the intestinal epithelium and reducing the risk of infection.

supplementation

      Active yeast cells and vitamins: Yeast contains high-quality active yeast cells (about 20 billion) and B vitamins (such as B1, B2, niacin), which support metabolism, fur health, and growth performance.

      Minerals and nucleic acids: provide trace elements such as zinc and selenium, as well as nucleotides, to promote the development of immune cells.

Ruminant rumen optimization

      Stable fermentation environment: Yeast consumes oxygen, maintains anaerobic conditions in the rumen, promotes the activity of fiber degrading bacteria (such as white rumen bacteria), and improves the digestibility of roughage.

      Reduce the risk of acidosis: By promoting the growth of lactic acid utilizing bacteria, buffering rumen pH, and preventing subacute acidosis (SARA).

Aquaculture application

      Water quality improvement: yeast decomposes residual feed feces to reduce ammonia nitrogen emissions.

      Enhance disease resistance: β - glucan activates non-specific immunity in fish and shrimp, improving their ability to resist stress.

2、 Suitable for animals and scenes

      Ruminant animals (cattle, sheep): increase milk production, weight gain, and fiber digestibility.

      Monogastric animals (pigs, poultry): reduce diarrhea and improve feed conversion rate.

      Aquatic animals (fish, shrimp): promote growth and reduce the incidence of diseases.

      Pets (dogs, cats): regulate the intestines and alleviate indigestion.

3、 Precautions

Usage control

      Excess may lead to excessive intestinal gas production (such as rumen bloating in ruminants), and it is recommended to add 0.1-0.3% (refer to product instructions for details).

Animal specificity

      The effect is more significant in young, pregnant, or stressed animals, but it should be avoided for immunocompromised individuals.

Storage and activity

      Store in a dark and dry place (temperature ≤ 25 ℃), and use as soon as possible after opening to prevent deactivation.

incompatibility of drugs in a prescription

      Avoid using broad-spectrum antibiotics or antifungal drugs simultaneously to prevent a decrease in yeast activity.

4、 Research support

      Ruminators: Multiple studies have shown that adding live yeast can increase milk production in cows by 5-8% and increase rumen volatile fatty acid (VFA) production.

      Pig: In the experiment, adding 0.2% yeast to the diet reduced diarrhea rate by 30% and improved feed to meat ratio by 7%.

      Poultry: The daily weight gain of broiler chickens increases by 4-6%, and the Salmonella infection rate decreases.

summarize

      Active dry yeast plays an important role in animal nutrition and health management through the dual mechanisms of probiotics and prebiotics, but it requires scientific allocation and attention to individual animal differences. In practical applications, it is recommended to combine veterinary or nutritionist guidance to achieve optimal benefits.