Australia's source for
Amireia 200S
NPN supplement.

A complete, efficient and economical Non-Protein Nitrogen (NPN) additive with 200% crude protein equivalent — improving rumen efficiency and animal performance for beef and dairy producers across Australia.

Guaranteed Analysis — Amireia 200S
Product specifications
Crude Protein (NPN)200%
Sulphur3.2%
Safe dose80g / 100kg liveweight
Adaptation period7–10 days
Shelf life2 years
Registered in Australia
Approved for beef & dairy cattle
Adaptable for Increase intake Optimise rumen environment Improve performance Maximise feed utilisation Dry licks Total mixed rations Pelletised feeds
Advantages of use
11 reasons producers
choose Amireia 200S
Every advantage below is sourced directly from Amireia Pajoara's official English product page — backed by field trials and research across 5 continents.
01
More Complete
The only cattle NPN supplement extruded with starch and sulphur, guaranteeing higher production of microbial protein and consequently higher rates of animal weight gain.
02
Controlled NPN Release
12-hour rumen degradation ensures perfect synchronisation between readily available energy (extruded starch) and slow release of nitrogen and sulphur — maximising microbial growth rates.
03
Lower Energy Cost
Avoids excess ruminal ammonia, eliminating the energy cost of metabolisation. That energy is redirected to maintenance, production and reproduction.
04
Excellent Palatability
The starch extrusion process ensures outstanding acceptance by animals even at higher inclusion rates — eliminating rejection common with regular urea products.
05
Reduces Feed Cost
Can replace up to 50% of soybean meal crude protein in dairy rations without affecting milk production or quality. Ideal for replacing protein meals in supplements.
06
Can Be Pelletised
The only protected NPN source on the market that allows pelletisation without nitrogen loss or reduction in protein content — full flexibility for feed manufacturers.
07
Year-Round Use
Safe in both dry and wet seasons. Can get wet without risk of toxicity to animals, even at higher NPN inclusion percentages in feed.
08
Faster Adaptation
Cattle adapt in just 7–10 days — reaching peak production faster and at lower cost compared to conventional products that require 15–30 days.
09
Opens Formula Space
At 200% crude protein concentration, it opens space in feed formulations, allowing greater flexibility to include other raw materials in the ration.
10
Sustainable
Better utilised by ruminal flora for microbial protein production — reducing nitrogen concentration in urine and minimising soil and environmental contamination.
11
More Profit
Allows replacement of up to 50% of soybean meal crude protein in dairy cattle feed — lowering feed production costs without any change in milk production or quality.
About the manufacturer
Brazilian innovation.
Global reach.

Amireia Pajoara is a Brazilian company founded in 1996 in Campo Grande, Mato Grosso do Sul - the heart of Brazil's most productive cattle region. They pioneered the industrial production of extruded starch NPN technology for ruminant nutrition.

Their flagship product Amireia 200S is a complete NPN additive — efficient, economical, and trusted by large feed formulators and livestock producers across the globe. It combines innovation, quality, research and industrial excellence.

Today, Amireia Pajoara supplies producers across more than 25 countries on 5 continents and has recently expanded with a new production facility in Villeta, Paraguay to strengthen global logistics and capacity.

AP Australia Pty Ltd is the official Australian distributor, bringing this proven NPN technology directly to beef and dairy producers across Australia.

Amireia Pajoara was founded in 1996 in Campo Grande, Brazil — pioneering industrial NPN production for ruminants. Over the following decades they expanded to 25+ countries across 5 continents. In 2025 a new production facility opened in Villeta, Paraguay to strengthen global supply.

Research backed
Proven by science.
Tested in the field.
Amireia 200S is supported by multiple published technical studies covering beef cattle, dairy cows, and sheep.
Feedlot finishing steers
In vitro digestibility of diets with different levels of Amireia 200S for confined beef cattle
Dairy cow milk production
Milk production and composition in lactating cows supplemented with Amireia 200S replacing soybean meal — published ABZ
Rumen volatile fatty acids
Synthesis of ruminal volatile fatty acids in beef cattle fed diets containing Amireia 200S
Nitrogen balance
Nitrogen balance in beef cattle fed diets with different levels of Amireia 200S — demonstrating efficient NPN utilisation
Sheep performance
Nutrient intake and productive performance of lambs supplemented with different protein sources including Amireia 200S
Nitrogen release kinetics
Calorimetry, physicochemical characteristics and nitrogen release of extruded NPN — confirming controlled degradation profile
How it works in the rumen
From ingestion to
animal performance.
Step 1 — Cattle consuming Amireia 200S Cattle consuming Amireia 200S in feed Amireia 200S — pellet matrix All 3 ingredients blended throughout Matrix composition Extruded maize starch (base) Nitrogen (NPN) — 200% crude protein Sulphur — 3.2%

Cattle consume Amireia 200S mixed into dry licks, protein supplements, or total mixed rations. The pellet is a uniform extruded matrix — nitrogen (NPN), maize starch, and sulphur are blended throughout — ready to enter the rumen for controlled release.

Step 2 — Product enters the rumen Oesophagus Rumen pH 6.0–7.0 | Temp 38–39°C Billions of active microbes 200S Rumen wall Rumen fluid

The pellet enters the rumen — a large fermentation chamber at 38–39°C with billions of active microbes. Unlike raw urea which dissolves instantly, the extruded NPN matrix of Amireia 200S begins a controlled, measured release of nitrogen and sulphur.

Step 3 — Controlled NPN release vs raw urea Amireia 200S Controlled 12-hour NPN release NPN + S matrix N S N S ✓ No ammonia spike ✓ Energy directed to growth ✓ Safe in wet and dry seasons vs Raw urea Instant release — ammonia spike NH₃ NH₃ NH₃ ✗ Excess ruminal ammonia ✗ Energy wasted on detox ✗ Toxicity risk if wet

The extruded matrix controls how fast nitrogen (NPN) and sulphur are released — spreading it over 12 hours. Raw urea releases instantly, flooding the rumen with ammonia faster than microbes can use it. Amireia 200S times the NPN release to perfectly match microbial demand.

Step 4 — Microbial protein production NPN + S release microbe microbe microbe microbe Microbial protein Extruded starch provides synchronised energy for microbial growth

Rumen microbes use the nitrogen (NPN) and sulphur released by Amireia 200S to build microbial protein — the highest-quality protein source for ruminants. The extruded starch provides synchronised energy, maximising microbial growth rates without ammonia excess.

Step 5 — Animal benefits ↑ Weight gain Higher microbial protein conversion ↑ Milk production Replaces up to 50% soy meal ↑ Feed efficiency More dry matter digested ↓ Feed cost Replaces costly protein meals Sustainable advantage Reduced nitrogen in urine → less soil contamination → better environmental outcomes

The result: higher weight gain, better milk production, improved feed conversion, and lower feed costs. Energy that would have been wasted detoxifying excess ammonia is redirected to growth, milk, and reproduction — with a smaller environmental footprint.

How it works
Simple to order.
Easy to feed.
From your first enquiry to cattle on feed — we make it straightforward.
1
Enquire & get a quote
Tell us your herd size, current supplement program, and location. We'll build a tailored quote and delivery plan.
2
Receive your product
Delivered by pallet to your property or local depot in sealed bags. Store in a dry, ventilated shed on pallets.
3
7–10 day adaptation
Follow our inclusion rate guide. Cattle adapt in 7–10 days — significantly faster than conventional NPN products.
4
See the results
Better rumen efficiency, improved condition scores, and more productive cattle — through wet and dry seasons alike.
Global track record
The numbers speak
for themselves.
Amireia Pajoara has been supplying the world's livestock producers since 1996 — backed by decades of research and real-world results.
30+
Years of commercial production
25+
Countries supplied globally
5
Continents — proven in every climate
200%
Crude protein (NPN) equivalent per kg

✓ Registered in Australia. Amireia 200S is fully approved for sale and use in Australia as a livestock NPN supplement for beef and dairy cattle. Exclusively distributed in Australia by AP Australia Pty Ltd (ABN: 87 698 227 922).

Ready to try Amireia 200S?

Request a free sample or bulk quote — we supply beef and dairy producers across Queensland, NSW, NT and WA.

Contact
Get in touch

Whether you want a free sample, a bulk quote, feeding rate advice, or technical support — we're here to help. Based in Queensland, supplying producers across Australia.

sales.au@amireia.com.br
0425 431 863
Queensland, Australia
ABN: 87 698 227 922