Feed-Grade Rosemary Extract: A Natural Antibiotic Alternative Pioneer Empowering Green Livestock Farming

I. What Is Feed-Grade Rosemary Extract?

Feed-grade rosemary extract is a natural feed additive refined from fresh or dried stems and leaves of Rosmarinus officinalis (Lamiaceae family) through processes including supercritical CO₂ extraction, solvent extraction, purification, concentration, and drying. Its core active components are carnosic acid, carnosol, and rosmarinic acid, featuring both liposoluble and water-soluble antioxidant, antibacterial, and anti-inflammatory properties. It is a green functional raw material that fully complies with feed safety standards.

Core Components & Characteristics

Carnosic acid / Carnosol: Highly liposoluble antioxidants with 2–4 times the antioxidant capacity of BHA and BHT. They are heat-resistant (190–240°C) and can block the lipid oxidation chain reaction in feed.

Rosmarinic acid: A water-soluble component with combined antioxidant, anti-inflammatory, and broad-spectrum antibacterial effects, inhibiting harmful bacteria such as Escherichia coli and Staphylococcus aureus.

Product form: Mostly yellowish-brown to yellowish-green powder, soluble in oil or ethanol, with high stability and no risk of synthetic additive residues.

II. Why Add Rosemary Extract to Feed?

• Replace Antibiotics & Align with the "Antibiotic Ban" Trend: Following China’s full implementation of the feed antibiotic ban in 2020, rosemary extract has become a core natural antibiotic alternative. It reduces animal diarrhea and disease incidence by inhibiting the NF-κB inflammatory pathway and regulating intestinal flora, lowering livestock’s reliance on antibiotics and ensuring the safety of animal products.
• Powerful Antioxidation to Extend Shelf Life of Feed & Meat: Scavenge free radicals, prevent oxidation and deterioration of oils, fats and vitamins in feed, and reduce nutrient loss. Enhance the antioxidant capacity of livestock and poultry muscles, reduce lipid oxidation of meat products, delay discoloration and off-flavors, and extend refrigerated/frozen shelf life.
• Improve Animal Health & Production Performance: Boost immunity, improve intestinal health, increase production efficiency (8%–12% daily weight gain in broilers and fattening pigs), enhance laying rate and optimize rumen fermentation.
• Green & Safe, Compliant with International Standards: Derived from pure natural plants with no chemical synthetic residues. Certified by EU FEEDAP and listed in China’s Feed Additive Catalogue, fully meeting global export requirements.

III. How to Use Feed-Grade Rosemary Extract

1. Applicable Animals & Recommended Dosage

Animal Type	Recommended Dosage (mg/kg complete feed)	Core Effects
Broilers / Ducks	100–300	Improve daily weight gain, feed conversion rate and meat quality
Fattening Pigs	150–400	Reduce FCR, lower intestinal diseases and increase lean meat percentage
Laying Hens / Ducks	80–200	Improve laying rate & egg weight, extend egg freshness
Ruminants (Cattle / Sheep)	200–500	Optimize rumen flora and enhance feed digestibility
Aquaculture (Fish / Shrimp)	100–250	Strengthen immunity and reduce oxidative stress

2. Application Methods

Direct addition: Mix evenly with premix, concentrate feed or complete feed.

Oil pre-blending: Pre-mix with feed oil first before blending into main ingredients for better dispersion.

Storage notes: Store in a cool, dry, light-proof and sealed environment; avoid high temperature and humidity. Shelf life: 12–24 months.

IV. Why Choose Xnyeeshin Biotechnology Co., Ltd?