Application of yeast cell wall extract in ruminant animal feed

Application of yeast cell wall extract in ruminant animal feed

Improvement of rumen function

Microbial community regulation: The rumen of ruminants is a complex microbial ecosystem. The components such as mannan in yeast cell wall extract are prebiotics that can selectively promote the growth of beneficial microorganisms in the rumen. For example, it can provide nutrition for fiber degrading bacteria such as rumen bacteria and succinic acid producing filamentous bacteria, and an increase in the number of these bacteria can help improve the efficiency of ruminants in decomposing cellulose and hemicellulose in roughage such as silage and hay. Research has shown that adding yeast cell wall extract can increase the digestibility of roughage in ruminants by 10% -15%.

Stable rumen pH: During rumen fermentation, it is easy to experience a decrease in pH. Yeast cell wall extract can maintain the stability of the rumen environment by regulating the metabolic activity of rumen microorganisms. For example, it can inhibit the excessive growth of acid producing bacteria (such as lactobacilli), reduce the excessive production of lactic acid, and maintain the rumen pH value within an appropriate range (6.0-7.0), effectively preventing problems such as rumen acidosis.

Immune enhancement effect

Activate immune cells: Yeast cell wall extract contains β - glucan, which is a powerful immune stimulant. After ingestion by ruminants, β - glucan can activate immune cells such as macrophages and neutrophils. Macrophages can engulf and eliminate foreign pathogens such as bacteria, viruses, and fungi, while neutrophils play a crucial role in inflammatory responses and resistance to pathogen invasion. This immune activation effect can enhance the resistance of ruminants to various diseases such as mastitis and hoof disease.

Regulating immune balance: β - glucan can also regulate humoral and cellular immunity in ruminants. It can promote the function of T lymphocytes and B lymphocytes, enabling the immune system of ruminants to produce an appropriate level of immune response in response to pathogens. This helps to reduce health problems caused by strong immune responses (such as allergic reactions) or weak immune responses (such as immunosuppression).

Adsorption of fungal toxins

Reduce the harm of mycotoxins: Ruminant animal feed (such as silage) is prone to contamination by mycotoxins. The mannan and β - glucan in yeast cell wall extracts have the ability to adsorb mycotoxins, which can reduce the harm of mycotoxins (such as aflatoxin and zearalenone) in feed to ruminants. For example, it can form complexes with mycotoxins, reducing their absorption in the rumen and alleviating their damage to organs such as the liver, kidneys, and reproductive system in ruminants.

Improve production performance

Improved growth performance: For meat ruminant animals such as beef cattle and sheep, yeast cell wall extract improves rumen function, enhances immune function, and reduces the harm of mycotoxins, resulting in increased daily weight gain and feed conversion rate for these animals. For example, adding yeast cell wall extract to feed may increase the daily weight gain of beef cattle by 8% -12%, while also improving feed conversion rate, shortening the fattening cycle, and improving breeding efficiency.

Optimization of milk production performance: For dairy cows, yeast cell wall extract can improve milk production and quality. It increases the intake and conversion of nutrients by cows by optimizing the fermentation environment in the rumen. Research has found that adding yeast cell wall extract can increase milk production in cows by 5% -10%, and the content of milk protein and fat in milk will also increase.