Anqirui Yeast Podwer Supplier

Does Yeast Extract Actually Benefit Chickens? Let’s Analyze It In Depth

Fri, 12 Jun 2026 08:45:04 +0800

In my previous articles, I shared detailed content focusing on pig farming. Mass poultry farmers reached out asking for targeted poultry-related content, so here is the full version covering broilers, commercial layers and parent breeder chickens. I bring you real farm data and objective, credible test results today.

First key distinction to clarify: Yeast extract is completely different from live yeast. It refers to hydrolyzed yeast products, loaded with functional nucleotides, β-glucans, mannan oligosaccharides (MOS) and micromolecular small peptides. It has become a mainstream feed additive for modern poultry farms. Is it truly efficient for chicken flocks? Let’s verify with authoritative trial data.

1. Broilers: Accelerated Weight Gain, Optimized Intestine & Improved Carcass Quality

Broiler farming boasts ultra-thin profit margins. Gaining extra body weight without extra feeding costs means direct net income for farms.

a. Faster Weight Gain & Reduced Feed Conversion Ratio

A 2025 official research adopted 200 Ross 308 broilers and divided them into four test groups: basal blank diet, live yeast group, single MOS group, and yeast-MOS compound synbiotic group. The compound additive group obtained remarkably higher feed intake and body weight, alongside the minimum FCR value (P < 0.001), realizing obvious synergistic effects.

Domestic poultry researches also prove yeast additives boost broiler average daily gain and daily feed consumption, and cut down feed-gain ratio. Besides, global cross-regional trials show supplementing yeast-derived nucleotides via drinking water lifts 21-day body weight and mid-term growth performance of broiler chicks.

To sum up, whether mixed into compound feed or dissolved in drinking water, yeast extract stably improves broiler growth performance, which is validated by massive scientific experiments.

b. Optimized Intestinal Tract, Lower Disease Incidence & Mortality Rate

Intestinal disorders including coccidiosis, Escherichia coli and Salmonella infection are core stubborn problems troubling all chicken growers, and yeast extract targets these pain points precisely.

A study published on Animals in August 2025 supplemented Ross 308 broilers with saccharomyces cerevisiae hydrolysate. On the 28th and 42nd feeding day, the intestinal villus height-crypt depth ratio rose significantly (P < 0.05), representing strengthened intestinal mucosal barrier function. Meanwhile, pro-inflammatory factors including TNF-α, IL-1β and IL-6 decreased sharply, while intestinal tight junction protein ZO-1 and occludin content increased greatly. Simply put, it relieves intestinal inflammation, consolidates gut defense barrier and blocks pathogenic invasion.

Another 2025 controlled trial compared sodium butyrate, plant extracts and yeast additives. The yeast supplement group possessed the highest serum total antioxidant capacity, enhancing the body’s ability to eliminate oxidative stress damage.

Additionally, domestic tests on Mahua broilers indicate yeast additives not only accelerate growth, but also strengthen antibody response after vaccination. Optimized immunity eventually lowers flock mortality and cuts farming loss.

c. Meat Quality: Limited Data but Promising Application Prospects

Slaughter indexes such as breast meat color, muscle tenderness and water retention rate directly determine terminal sales prices. Relevant research data is relatively limited at present. Yet for yellow-feather broilers and native local chickens, nucleotides and small peptides inside yeast extract facilitate protein synthesis, which optimizes breast meat quality and improves dressing percentage effectively.

d. Economic Benefit: $0.30 Extra Net Profit Per Chicken

Benefiting from improved growth performance and optimized feed conversion, each broiler in the synbiotic group gains an extra profit of 0.3 US dollars. For a medium-scale farm with 10,000 stocks, total extra revenue reaches $3,000, delivering extremely high input-output ratio.

2. Commercial Layers: Higher Egg Production Rate, Denser Eggshell & Thicker Egg White

Layer breeding focuses on egg commodity value. For aged laying hens with thin eggshells, watery egg white and frequent cracked eggs, improving these flaws brings stable daily economic gains.

a. Improved Laying Performance

A 2025 research from Chinese Academy of Agricultural Sciences selected 288 65-week-old Hy-Line Brown layers, adding 0.3%, 0.5% and 0.8% yeast culture into daily feed for 8 consecutive weeks. Test data shows 0.3% and 0.5% additive groups achieved obviously higher laying rates (P < 0.05), among which 0.5% dosage is the optimal addition amount.

Global trials on Shaver White layers adopting 3g/kg yeast lysate also prove yeast additives lift laying rate and daily total egg output steadily.

b. Upgraded Commercial Egg Quality

The above domestic research manifests the 0.3% yeast additive group owns higher Haugh unit value, the core index measuring egg white consistency. Higher Haugh unit means thicker egg white, better egg appearance and longer shelf life, boosting commodity value.

The 3g/kg yeast lysate trial draws more practical conclusions: egg shell proportion increased from 11.4% to 12.2%, and shell thickness rose from 0.362mm to 0.384mm (P < 0.05). Thicker egg shells sharply reduce cracked egg ratio, especially suitable for late-period aged layer flocks.

Key research result in August 2025 from Feed Research Institute: 10% yeast culture addition boosts egg white height and Haugh units of fresh and stored eggs, and elevates cecal butyrate content. It extends egg shelf life by 3-4 days during supermarket circulation, creating huge commercial value for large-scale layer farms.

c. Prolong Production Cycle of Aged Layers

Layers over 55 weeks old feature declined egg production, weakened immunity and disordered calcium metabolism. A 2025 global study fed 55-week-old brown layers with active dry yeast (ADY) and compound formula of ADY + Bacillus subtilis. The combined additive group optimized laying rate, eggshell hardness and feed-egg conversion ratio greatly (P < 0.05). Besides, avian influenza H5, H9 antibody titers increased significantly (P < 0.01), realizing prominent immune enhancement effects.

3. Parent Breeders: Maternal Nutrition Determines Progeny Growth Performance

Breeder nutritional management is always easily ignored, while it brings multiplied breeding benefits. Reasonable nutritional supplement for parent hens will greatly improve comprehensive performance of offspring chicks.

a. Optimized Offspring Chick Quality

A 2024 research from University of Georgia divided two Ross 708 breeder flocks into control group and 175ppm yeast postbiotic additive group with 3-week feeding cycle. After hatching, offspring broilers were raised to 40 days of age. The progeny from yeast-supplemented parent group showed higher 0-15d feed intake (P=0.08) and 15-day breast muscle weight (P=0.13), as well as higher carcass weight. It fully proves maternal yeast nutrition improves early growth and meat yield of offspring chicks.

b. Maintain High Production Performance of Aged Breeders

The 55-week-old layer test of ADY + Bacillus subtilis compound additives also applies to parent breeder flocks: it optimizes egg commodity traits, eggshell strength and feed-egg ratio, repairs calcium metabolism and oviduct health, and elevates vaccine antibody level. It effectively maintain high productivity of aging breeder flocks.

4. Core Function Summary for Poultry Farming

Broilers: Higher daily feed intake and weight gain, lower FCR; optimized intestinal morphology, relieved intestinal inflammation, reduced flock mortality.

Commercial Layers: Improved peak and late laying rate (0.5% optimal dosage); thicker eggshell and denser egg white, fewer cracked eggs; enhanced immunity for aged hens.

Parent Breeders: Promote offspring early growth, feed intake and breast muscle development; stabilize reproductive performance of aging breeding chickens.

5. Scientific Stage-Based Feeding Scheme for Poultry

Parent Breeders & Replacement Pullets

Add 0.15%-0.2% yeast culture during rearing and pre-laying period to consolidate intestinal health and build sufficient body nutrient reserve.

Peak-Production Layers & Breeders (Late Laying Period Included)

Prioritize egg quality and immune regulation; match yeast postbiotics with organic calcium and Bacillus subtilis compound bacteria. Recommended dosage: 0.5%-1.0%, and 0.5% is the best dosage for eggshell thickness and Haugh unit improvement.

Broiler Finishing Period (Last 4-6 Weeks Before Slaughter)

Add into feed or drinking water. Saccharomyces cerevisiae + MOS synbiotic formula delivers the best weight gain effect, lowest feed ratio and mature intestinal development.

Full-Cycle Intestinal & Immune Protection

Chicks within 60 days old and broilers aged 7-14 days are critical intestinal development stages. Supplement yeast nucleotides or yeast cell wall polysaccharides to accelerate immune system maturation, and cut the occurrence risk of coccidiosis and necrotic enteritis.

Key Farm Reminders

1. Focus on nucleotide and small peptide content when purchasing products; active ingredient content varies hugely among different brands.

2. For first use, adopt small-scale flock trial for 2-3 weeks, and observe feed intake, manure status and chicken uniformity.

3. Do not blindly choose low-price products; low-grade substandard additives cause total input waste.

That’s all for yeast extract application on poultry farming. Which theme do you need next: sheep, goats or aquatic fish? Leave comments or send me private messages!

Functional Mechanisms of Yeast Cell Wall

Tue, 09 Jun 2026 08:35:10 +0800

Polished Rewrite (Professional technical style, same meaning & logic, rephrased sentences & expressions, suitable for technical documents, product manuals & industry promotion)

Action Mechanism of Yeast Cell Wall (Dual Active Core: β-Glucan + Mannan)

This content covers universal fundamental mechanisms and targeted mechanisms for monogastric animals, ruminants and aquatic species.

Main Active Ingredients of Yeast Cell Wall

The yeast cell wall consists of an inner layer of β-glucan and an outer layer of mannan (MOS), plus trace protein and chitin. These two core components work synergistically to deliver multiple benefits.

1. Universal Fundamental Mechanism

1. β-Glucan: Immune Activation, Anti-Stress & Antioxidation

1.Targeted immune activation

β-glucan binds to Dectin-1 receptors on animal immune cells, triggers the NF-κB signaling pathway, and stimulates the secretion of cytokines including IL-2, IL-6 and TNF-α. It elevates the phagocytic capacity of macrophages and the activity of NK cells, reinforces non-specific immunity, and boosts antibody titers after vaccination.

2.Stress alleviation

It lowers cortisol levels triggered by transportation, weaning, herd regrouping, cold and heat stress, so as to mitigate declined feed intake and production performance caused by stress.

3.Antioxidation and organ protection

β-glucan activates the Nrf2 antioxidant pathway, increases the activity of SOD and GSH-Px, and reduces MDA content. It relieves oxidative damage and protects the liver as well as intestinal barrier.

2. Mannan / Mannan Oligosaccharides (MOS): Pathogen Control, Gut/Rumen Regulation & Prebiotic Effect

1.Competitive adsorption against pathogens (physical inhibition, no drug resistance)

MOS matches the type I pili of enteric pathogens such as Escherichia coli, Salmonella and Clostridium perfringens. It competitively binds to these harmful bacteria, blocks their adhesion to intestinal walls, and eliminates them via excretion. This effectively reduces diarrhea and intestinal inflammation.

2.Premium prebiotic

MOS selectively nourishes beneficial microbes including lactic acid bacteria, bifidobacteria and ruminal cellulolytic bacteria, facilitating their proliferation and optimizing the overall microbial flora.

3.Mucosal barrier repair

It increases intestinal villus height, decreases crypt depth and thickens intestinal mucosa. This prevents endotoxin from entering the bloodstream and reduces systemic inflammatory response.

3. Extra Function: Mycotoxin Adsorption

Thanks to its porous network structure, yeast cell wall can physically adsorb mycotoxins like aflatoxin and zearalenone. It alleviates liver and kidney damage as well as production suppression induced by toxins.

2. Mechanisms for Different Livestock & Aquatic Species

Monogastric Animals (Poultry, Swine)

It mainly optimizes intestinal health and systemic immunity: reduces diarrhea incidence, improves survival rate and enhances feed conversion ratio. Since monogastric animals have no rumen degradation, conventional broken-cell yeast cell wall can work effectively.

Ruminants (Dairy Cattle, Beef Cattle, Calves — Key Differences)

1.Stabilize rumen microflora: MOS promotes the growth of propionate-producing bacteria and cellulolytic bacteria, improving the digestibility of crude fiber in silage and straw. It restrains excessive lactic acid accumulation, maintains stable rumen pH, and prevents ruminal acidosis and laminitis.

2.Raise dry matter intake (DMI), enabling more nutrients to be allocated for milk production and weight gain.

3.Special note: Conventional yeast cell wall is easily degraded by rumen microbes. Rumen-protected formulations are required to deliver active ingredients to the intestines for immune protection.

Aquatic Species

It enhances anti-stress ability and disease resistance of fish and shrimp, improves survival rate under aquatic environmental stress, and adsorbs waterborne toxins.

One-Sentence Core Summary

β-glucan exerts powerful immune regulation and anti-stress effects, while mannan suppresses pathogenic bacteria, feeds beneficial flora, protects mucosal tissues and stabilizes rumen environment. The two components work together to cut disease risks, boost feed intake and nutrient digestibility, and ultimately raise breeding productivity. This natural solution causes no drug residues or antibiotic resistance

Brewer’s Yeast for Racehorses: Supporting Digestion, Immunity and Physical Performance

Mon, 08 Jun 2026 13:45:05 +0800

Walk around any racehorse stable, and you’re bound to hear conversations about brewer’s yeast. Though it is merely a byproduct of beer production, its benefits for horses make it a staple worth taking seriously.

Brewer’s yeast, scientifically named Saccharomyces cerevisiae, is processed by drying the residual yeast sediment from grain fermentation for beer into fine powder or flakes. This common byproduct is packed with nutrients that deliver remarkable benefits to equines.

You may wonder why racehorses need an ingredient derived from breweries. The answer lies in its positive effects on the horse’s internal gut health, rather than any connection to beer itself.

Core Benefits Rooted in Gut Health

Horses are classified as hindgut fermenters. Simply put, their overall wellness and energy supply largely rely on the microbial community living in the large intestine. These microorganisms break down fiber from hay and grass into volatile fatty acids, which serve as the horse’s primary energy source.

Racehorses are fed far more grain and concentrated feeds than pastured horses. Excess starch and sugar can disrupt the hindgut ecosystem: intestinal pH drops, beneficial microbes die off, and acid-producing bacteria multiply. This causes digestive discomfort, poor nutrient absorption, and in severe cases, life-threatening issues such as colic and laminitis — major risks ahead of races.

Brewer’s yeast effectively stabilizes the hindgut environment. Research proves it prevents excessive acidification in the gut, especially during stressful events like transportation or sudden feed transitions. Multiple studies also confirm it boosts the digestibility of fiber and dry matter. In short, horses can gain more nutrients from the same quantity of forage.

A domestic research project on Mongolian racehorses further verified its effects. After supplementation with brewer’s yeast, the horses recorded significantly higher levels of SOD, CAT and GSH-Px post-race, indicating stronger resistance to oxidative stress. Meanwhile, elevated glycine in the blood also facilitates muscle repair and recovery.

Powerful Immune Support

Intensive training takes a toll not only on muscles but also on the immune system. It is a common scenario that a horse in peak physical condition falls ill after heavy workouts, resulting in weeks of interrupted training.

Rich in beta-glucans, brewer’s yeast offers reliable immune protection. A 2022 study on Polish sport horses showed that 21 days of beta-glucan supplementation from brewer’s yeast raised blood levels of lysozyme, total protein and gamma-globulins. These improvements emerged on day 7 and reached their peak between day 14 and 21, with 5 to 10 grams per day identified as the optimal dosage.

This means the horse’s innate defense system is strengthened. Horses fed with brewer’s yeast recover more quickly after tough races and are less susceptible to minor illnesses spreading around the stable.

Noticeable Improvements to Coat, Hooves and Muscle Condition

Coat and body changes are usually the first signs horse owners and trainers observe. Within a few weeks of regular use, the horse’s coat becomes sleek and glossy, and hoof condition also gets enhanced.

In a study published in the Journal of Animal Science, 12 performance horses were placed on a restricted-calorie diet, with one group receiving additional brewer’s yeast. Their coat condition score rose from 3.2 to 3.7 on a 5-point rating scale. While the gap is not statistically extreme, the visual difference is obvious to experienced trainers.

The effect comes from the abundant B vitamins in brewer’s yeast — particularly biotin, a well-known nutrient for healthy coats and hooves. Its high-quality protein and amino acids also support muscle repair and regeneration.

Additionally, B vitamins play a key role in energy metabolism, helping the body convert feed into usable energy and improving overall feed efficiency. Many owners also report calmer temperaments in supplemented horses, thanks to vitamin B1 (thiamine), which regulates nervous system function. Horses lacking thiamine tend to be skittish and anxious, and brewer’s yeast naturally maintains healthy thiamine levels.

A Natural Alternative to Synthetic Feed Additives

For a long time, antibiotics and chemical additives were widely used to maintain equine gut health. Yet growing concerns over drug resistance and stricter industry regulations have pushed people to seek natural alternatives — and brewer’s yeast fits the bill perfectly.

Containing mannan-oligosaccharides (MOS), it works by binding to harmful bacteria in the gut and stopping them from attaching to intestinal walls. Pathogens are then excreted with feces. This is especially valuable for racehorses that travel between racetracks and come into contact with new horses and potential pathogens.

It should be noted that brewer’s yeast cannot replace standard stable management or professional veterinary care. It acts as a supplementary nutrient to optimize the horse’s overall physical state.

Practical Feeding Guidelines

Recommended Dosage

For a 500 kg adult horse, the standard daily dosage is around 50 grams. For smaller horses and yearlings, 25 grams per day is sufficient. Dosages vary by product purity, ranging from 12 grams up to 150 grams daily. Always follow product labels and start with a low dose.

Feeding Method

Mix the yeast thoroughly with regular grain, mash or pelleted feed. Note that it has a slight bitter taste, which some horses may dislike initially. Gradually increase the serving over one week to let horses adapt.

Usage Cycle

Brewer’s yeast is safe for long-term continuous use. Visible improvements in gut health, coat quality and recovery ability will not appear overnight; consistent feeding for 2 to 3 months is recommended for optimal results.

Ideal Candidates for Supplementation

It is highly recommended for racehorses under heavy training, as well as hard-to-fatten horses with poor weight gain, and equines with sensitive digestive systems. It also delivers great benefits for horses recovering from feed changes, long-distance transportation or illness.

Final Remarks

Brewer’s yeast is not a miracle product that can turn ordinary horses into champion racers instantly. However, its practical benefits are undeniable: it stabilizes gut function, boosts immunity and elevates feed utilization efficiency. In competitive racing, every small advantage counts. A horse with a healthy gut, shiny coat and faster post-race recovery gains a crucial edge on the track.

As a reliable, low-profile supplement, brewer’s yeast works steadily behind the scenes. This is why it has become an essential part of feeding programs for numerous professional trainers.

Pigeon specific beer yeast, probiotics for pigeons

Fri, 05 Jun 2026 10:13:48 +0800

Specialized brewer’s yeast for pigeons is a mainstream nutritional additive widely applied in pigeon husbandry, refined from the bottom sediment produced amid beer fermentation. It is abundant in crude protein, B-complex vitamins, mineral elements and active probiotics. Below is a sorted overview covering its core functions, applicable feeding scenarios and standardized scientific administration.

1. Core Active Ingredients & Functional Benefits

Optimize Intestinal Health

Probiotic activity: Boost the population of gut beneficial flora including lactic acid bacteria, suppress harmful pathogens like *Escherichia coli* and Salmonella, rebalance intestinal microecology and ease common troubles such as green droppings, loose stool and poor digestion.

Natural dietary fiber: Soaks up surplus intestinal moisture to firm up pigeon feces and cut down unpleasant odors inside lofts.

Substitute for mild antibiotic therapy: Capable of replacing antibiotics for slight enteric inflammation to steer clear of adverse side effects from chemical medication.

Supplement Comprehensive Nutrition

High-protein content (above 50%): Supplies highly digestible premium protein to facilitate muscle growth, ideal for squabs and breeding stock.

B-group vitamins: Speeds up bodily energy metabolism, relieves exhaustion and poor feed intake triggered by intensive training or racing stress, as well as keeps plumage glossy.

Minerals & amino acids: Formulated with more than 14 mineral varieties plus 18 amino acids to bolster immune defense and the body’s anti-stress capability.

Auxiliary Care for Physiological Transition Stages

Moulting phase: Stimulates new feather growth while improving feather elasticity and glossiness.

Post-disease recuperation: Repairs damaged gut flora after antibiotic medication and helps pigeons bounce back to physical condition rapidly.

2. Applicable Circumstances & Standard Feeding Protocol

using objects	Recommended scenarios	Method and frequency	precautions
breeding pigeon	Nurturing period (4-24 days after hatching of young pigeons)	Once every 2 days, mix in feed (5g yeast/500g feed)	Paired with calcium powder to prevent adhesion, the feed should be fed within 30 minutes
Young pigeon	Significant differences in body shape and delayed development	Artificially feeding yeast tablets (2 times a day, 1 tablet each time, continuous feeding for 4-6 days)	Yeast slices are softened by dipping them in water to avoid scratching the esophagus
pigeon	Training/competition period, stress urinary incontinence	Mix tomato sauce and beer yeast 1-2 times a week	Relieve fatigue and maintain peak state
Daily health care	Prevent intestinal problems and enhance immunity	1-2 times a week, 5-10g yeast/1kg slightly moist feed	Avoid co administration with antibiotics, with a minimum interval of 1 day

3. Feeding Restrictions & Critical Guidance

Never dissolve directly in drinking water

Brewer’s yeast tends to ferment quickly in liquid; direct mixing with drinking water easily triggers diarrhea and digestive upset in pigeons. All dosing should be incorporated into compound feed only.

Regulate dosage and feeding frequency rigorously

Daily over-supplementation will lead to calcium depletion and undesired weight loss; weekly usage should not exceed three times.

Prepare damp blended feed right before feeding to prevent feed deterioration.

Optimal ingredient matching options

Garlic: Mix mashed garlic with brewer’s yeast for synergistic antibacterial effects and better colonization of good gut bacteria.

Post-antibiotic recovery: Pair easily digestible grains (barley, sorghum) together with yeast to lower gastrointestinal load.

Product Selection & Storage Guidelines

Premium product traits: Pale yellow fine powder with mild natural aroma, turns slightly sticky when damp and gains great feeding preference from pigeons.

Storage requirement: Keep sealed away from sunlight, dampness and high ambient temperature to preserve active constituent potency.

Proper inclusion of pigeon-specific brewer’s yeast effectively lifts breeding pigeons’ reproductive performance, improves squab survival rate and enhances racing pigeons’ athletic performance. Still, accurate dosage and feeding schedule must be followed strictly; overdosage will result in unbalanced daily nutrition.

What Practical Effects Does Yeast Extract Have on Aquaculture?

Thu, 04 Jun 2026 10:56:21 +0800

I’ve previously shared content covering swine, poultry and ruminant cattle. Lots of shrimp and finfish farmers have reached out requesting dedicated aquaculture-related material, so here’s the exclusive writeup, split neatly between shrimp and fish segments.

To start with a quick overview: Yeast extract is manufactured by enzymatically rupturing yeast cells to isolate soluble active fractions, namely nucleotides, small oligopeptides, β-glucans and mannan-oligosaccharides. Water-soluble and highly appetitive, it perfectly matches aquatic species’ feeding habits, driving rising incorporation into modern aquafeeds. Wondering about its real-world efficacy? Let’s back up claims with verified trial data.

1. Application on Shrimp: Optimize Hepatopancreatic Health, Boost Disease Resistance & Sustain Stable Growth

Shrimp farming is notoriously challenging; issues including poor feed intake, hepatopancreatic lesions and Vibrio outbreaks constantly trouble cultivators, and yeast extract has obtained validated experimental data targeting these pain points.

Nucleotides: Reinforce Intestinal Development

A 2025 feeding trial on Pacific white shrimp supplemented basal feed with nucleotides at inclusion levels of 75 mg/kg, 150 mg/kg and 300 mg/kg over a 60-day feeding cycle. All three treatment groups attained markedly enhanced growth performance and body crude protein concentration versus blank control (p＜0.05), primarily attributed to optimized intestinal morphology: elevated intestinal fold height, villus height and enterocyte size. As all shrimp producers know, robust intestinal development elevates nutrient digestibility and converts feed into body weight more efficiently.

Additional ammonia-nitrite exposure stress testing revealed no notable survival gaps across test cohorts, proving dietary nucleotides impose no extra physiological burden on shrimp. From an economic perspective, per-hectare net profit fell between USD 29,244 and 30,542, with the 150 mg/kg dosage delivering maximum profitability.

Yeast Hydrolysate: Ideal Fishmeal Substitute for Low-Fishmeal Formulas

Another 2025 experiment adopted low-fishmeal feed (10% fishmeal proportion) for white shrimp, supplemented with graded yeast hydrolysate ratios (0%, 0.5%, 1%, 2%, 4%), alongside a positive control group containing 25% fishmeal. Shrimp fed 4% yeast hydrolysate exhibited equivalent growth indices to the high-fishmeal control group with no statistically meaningful discrepancies.

Subsequent Vibrio parahaemolyticus injection challenge showed the 4% supplementation group achieved comparable survival rate to the 25% fishmeal cohort and vastly outperformed low-dosage and blank low-fishmeal groups. Meanwhile, this group boasted longer intestinal villi and thicker muscle tissue relative to other low-fishmeal variants.

Given skyrocketing fishmeal market prices, partial fishmeal replacement via yeast hydrolysate preserves growth performance while strengthening disease resistance, creating an economical feeding solution.

Compound Probiotic Yeast Blends Deliver Synergistic Benefits

A 2025 study isolated three effective probiotic strains from shrimp guts – Bacillus subtilis, Enterococcus faecium, and Saccharomyces cerevisiae – then fermented them together. The combo significantly improved shrimp growth performance, digestive function, and immunity. Single ingredients work, but combinations often give a stronger, more balanced effect.

2. Application on Finfish: Accelerate Weight Gain, Elevate Immunity & Improve Gut Condition

Compared with shrimp trials, fish-related research is more comprehensive, covering tilapia, grouper, sea bass and other mainstream cultured varieties.

Tilapia: 1 g/kg Inclusion Rate Already Produces Noticeable Effects

A 35-day 2025 trial tested autolyzed brewer’s yeast at four additive levels (0, 1, 2, 4 g/kg) on juvenile Nile tilapia. The 1 g/kg dosage brought prominent improvements: boosted weight gain and specific growth rate plus reduced feed conversion ratio. On the molecular level, immune-related genes (*tlr2, il10, il1β, igm*) were upregulated whereas pro-inflammatory *tnfα* expression declined in both 1 g/kg and 2 g/kg groups.

In short, yeast extract facilitates fish growth while mitigating intestinal inflammatory responses for superior digestion and absorption; intestinal histological inspection confirmed intact gut tissue without pathological damage, confirming 1 g/kg is a safe and effective addition.

A separate 8-week trial completed in 2024 supplemented feeds with fermented *Saccharomyces cerevisiae* extract at 0, 1, 2, 3 g/kg. Specimens receiving 2 g/kg outperformed controls in final body weight, weight gain, specific growth rate, feed utilization efficiency and nutrient deposition efficiency. It also raised blood corpuscle and hemoglobin counts, elevated serum total protein, albumin, complement C3, IgM & IgG concentrations, enhanced antioxidant enzyme activity (catalase, GSH-Px, T-SOD) and suppressed lipid peroxidation, alleviating hepatic fat accumulation and stimulating intestinal villus branching. Research concludes 2 g/kg stands as the optimal dose for tilapia growth, immunity, antioxidation and intestinal health.

eawater-Cultured Red Hybrid Tilapia: 1 g/kg Yeast Polysaccharide Suffices

A 2026 seawater tilapia trial evaluated three yeast polysaccharide variants (L6, L9, L10) dosed at 1 g/kg feed. Strain L10 achieved top weight gain and minimal FCR; all three extracts displayed in-vitro antibacterial activity against Vibrio, with L10 showing the strongest inhibitory effect. Fish in L10 treatment had heightened plasma total antioxidant capacity and lysozyme activity alongside reduced malondialdehyde content, suppressed pro-inflammatory intestinal cytokines and elevated anti-inflammatory gene expression. Improved intestinal barrier integrity and optimized gut microbiota were also observed: beneficial *Cetobacterium* proliferated while pathogenic Photobacterium declined.

Selecting proper polysaccharide strain and inclusion level enables concurrent immunity enhancement and gut regulation.A 2026 seawater tilapia trial evaluated three yeast polysaccharide variants (L6, L9, L10) dosed at 1 g/kg feed. Strain L10 achieved top weight gain and minimal FCR; all three extracts displayed in-vitro antibacterial activity against Vibrio, with L10 showing the strongest inhibitory effect. Fish in L10 treatment had heightened plasma total antioxidant capacity and lysozyme activity alongside reduced malondialdehyde content, suppressed pro-inflammatory intestinal cytokines and elevated anti-inflammatory gene expression. Improved intestinal barrier integrity and optimized gut microbiota were also observed: beneficial *Cetobacterium* proliferated while pathogenic *Photobacterium* declined.

Selecting proper polysaccharide strain and inclusion level enables concurrent immunity enhancement and gut regulation.

Grouper: Yeast Nucleotides Enhance Intestinal Antioxidant Properties

Domestic research on pearl gentian grouper verified dietary yeast nucleotides effectively upgrade intestinal antioxidant capacity and immune competence. As high-value farmed fish with strict feed formulation standards, grouper culture represents a promising application direction for yeast-derived products.

3. Four Core Functional Advantages of Yeast Extract in Aquaculture

Synthesizing all experimental findings, yeast extract’s aquaculture value falls into four core categories:

1. Accelerated growth & reduced FCR: 1 g/kg dosage optimizes tilapia growth metrics and feed efficiency; nucleotide additives enlarge shrimp intestinal absorption area to maximize feed utilization, with 150 mg/kg nucleotide supplementation securing peak farming revenue.

2. Strengthened disease resistance: In Vibrio challenge testing, shrimp fed 4% yeast hydrolysate matched the survival performance of high-fishmeal groups. β-glucans from yeast activate aquatic immune cells to boost lysozyme and phenoloxidase activity via well-documented biological pathways.

3. Reinforced intestinal barrier: Multiple trials consistently record elevated villus height and epithelial integrity in yeast extract-fed aquatic animals, blocking pathogen invasion and cutting enteritis incidence. Adding 0.1%~0.3% yeast cell wall increases fish/shrimp leukocyte quantity and lysozyme levels, improving defense against Vibrio and white spot syndrome.

4. Enhanced feed palatability: Natural savory substances within yeast extract boost feed intake and leftover feed waste, especially critical for picky-feeding species like eel and sturgeon.

4. Practical Field Application Guidelines for Aquaculture Yeast Extract

1. Species-specific dosing: 2%~4% yeast hydrolysate partially replaces fishmeal for shrimp postlarvae; 150 mg/kg nucleotides fit adult shrimp; 1~2 g/kg extract is ideal for young tilapia; follow product specification for grouper feeding.

2. Prioritize raw material quality: Baker’s yeast and brewer’s yeast differ greatly in functional outcomes; focus on nucleotide and small-peptide content instead of unit pricing alone.

3. Blended additives perform better: Combinations like yeast hydrolysate + probiotics or yeast cell wall + nucleotides generate synergistic effects more stable than single ingredients; yeast cell wall works excellently as immune booster under poor water quality or intensive stress conditions.

4. Sufficient application cycle: Yeast extract modulates gut flora and immunity progressively rather than delivering instant results; continuous feeding for 2~3 weeks is required to observe tangible benefits.

5. Eco-friendly feeding option: Improved feed digestibility cuts nitrogen and phosphorus excretion, easing ammonia and nitrite management in culture water and complying with sustainable green aquaculture trends.

Allicin

Mon, 09 Feb 2026 15:27:12 +0800

Allicin

Allicin its main effective ingredients for diallyl trisulfide, diallyl disulfide and other volatile sulfur compounds.

White or quasi-white powder with strong garlic smell.

1. Bacteriostasis. This product to escherichia coli, salmonella, staphylococcus aureus, dysentery bacillus, typhoid bacillus, coccus, streptococcus and other harmful bacteria have obvious inhibition and killing effect, beneficial bacteria have no inhibition effect.

Food calling.Allicin has rich natural fragrance, can have stronger food calling effects on animals, to increase the livestock and poultry feed intake of drinks, at the same time, strong smell of garlic can stimulate the secretion of digestive juice, animals accelerate gastrointestinal peristalsis, promote digestion, so as to promote the livestock and poultry body lysozyme release in great quantities, activity markedly increased, hydrolytic bacteria in the wall stick peptides, Causes bacterial cell lysis and death, enhances the body's non-specific immune function plays an anti-infection role. At present, it plays a very important role in humoral immunity, cellular immunity and anti-tumor immunity.

3.Mildew and insect repellent. Effectively kill all kinds of mold, fungus, mildew resistance, inhibit the growth of maggots, reduce the harm of mosquitoes and flies in breeding farms, prolong the shelf life of feed, improve the feeding environment.

Improve the quality of livestock products.After animal ingestion, its meat, eggs and milk quality is significant, the original smell is reduced, its taste becomes more delicious.

5. The treatment of diseases such as rotten gill, red skin, enteritis and bleeding caused by various infections of fish and shrimp.

6. Side effects, no drug residue, no drug resistance, is to replace antibiotics, production of safe and pollution-free products green additives, human health guarantee. Suitable for animals of all ages, fresh water, sea water, shrimp, crab and other special animals. Living environment.

Contact Us

Fri, 06 Feb 2026 16:44:31 +0800

Tianjin Anqirui Technology Co.,Ltd

Tel: +8613661236356

E-mail:sales@yeastpowderco.com

Compound Probiotics for Odour Remove

Fri, 06 Feb 2026 11:00:12 +0800

For Odour Remove

Compound Probiotics for Water Treatment

Fri, 06 Feb 2026 10:51:54 +0800

Active Yeast(Saccharomyces cerevisiae)

Thu, 05 Feb 2026 10:08:35 +0800