Probiotics, fermentation, molecular testing and lab-based efficacy screening for pet food, treat and supplement brands — and for the ingredient companies that supply them.
Many of the newest pet nutrition products depend on biology: live probiotics, fermented and enzyme-processed ingredients, bioactive peptides and functional actives. Proving these work — that strains survive, actives stay stable and ingredients do what is claimed — needs biological methods beyond routine nutrient testing.
The Pet Bioscience Lab brings fermentation, molecular biology, cell-based screening and protein analysis into one facility. It supports pet food, treat and supplement brands and ingredient companies with strain development, identity and count testing, in vitro efficacy screening and active-ingredient analysis before products move to feeding studies.
Start your project with Guires PNLEach service has its own page with the scope, the scientific challenges, the evidence behind our approach and what you take away.
Strain screening, fermentation from 5 to 100 L, concentration and freeze-drying.
Explore →Strain identity, live counts, rapid pathogen screening and targeted microbiome markers.
Explore →Cell-based screening and simulated digestion that shortlist actives and recipes in the lab.
Explore →Peptide and hydrolysate profiling, protein pattern comparisons and active-ingredient stability.
Explore →Choose a service area to see what we deliver, the equipment behind it and the functional benefits it supports.
From strain to stable powder — grown, concentrated and freeze-dried in-house.
Strain screening, growth optimisation, concentration and freeze-drying — plus heat-treated postbiotics made from the same strains.
Will your strain survive extrusion, drying, shelf life and the dog or cat gut? We test viability under simulated processing and digestion.
Fermented functional ingredients, enzyme-hydrolysed proteins for sensitive-pet diets and palatant digests, developed at lab and pilot scale.
Lab-scale freeze-dried treats, toppers and probiotic powders for prototypes, sampling and early studies.
Knowing exactly which microbes are present — and how many.
Confirm the identity of probiotic strains and isolates, and count live cultures in finished products through shelf life — the evidence behind “contains live cultures” claims.
PCR-based screening for Salmonella, Listeria and STEC E. coli in raw, fresh and freeze-dried products and environmental samples.
Blood biomarkers and immune markers from partner feeding studies, plus faecal DNA extraction and targeted PCR for specific gut bacteria.
Test ideas in the lab before they reach an animal study.
Screen actives in cell models for gut-barrier support, immune response, antioxidant activity and inflammation markers — so only the most promising go forward to feeding studies.
Model dog or cat digestion in the lab to compare protein digestibility and how much of an active is released from a recipe or ingredient.
Characterising the ingredients that make functional claims.
Check how far proteins are broken down in hydrolysed diets, profile collagen and other peptides, and compare protein profiles for novel proteins such as insect.
Measure active levels and track their stability over shelf life — vitamins, taurine, NAD+ precursors and botanical markers — with accelerated storage and oxidation checks.
Live-culture counts, active stability and evidence for functional claims.
Strain development, efficacy screening and characterisation data for new ingredients.
Probiotic delivery, pathogen screening for raw and fresh lines, and digestibility comparisons.
Molecular, cell and protein work as part of joint studies.
Every instrument behind our bioscience services — 52 in all. Filter by lab area.
What you need to prove, for which species, product and market.
Methods, controls, sample numbers and endpoints agreed up front.
Fermentation, cell, molecular or protein work in our bioscience lab.
Statistics and a scientist’s interpretation against your goal.
A clear report you can use for development decisions and claim files.
Scale-up, a feeding study with partner panels, or formulation.
The bioscience lab complements our wider testing network. Routine nutritional and contaminant analysis stays with Guires Analytical Lab and qualified partner laboratories.
Stay ahead with regulation updates, the latest research, ingredient spotlights, recalls and market trends for pet bioscience — written by our formulation, testing and regulatory teams.
Every project at Guires Pet Nutrition Lab runs inside an ISO 9001:2015 certified quality system and FSSAI-licensed operations, with documented methods, calibrated instruments, traceable raw materials and reviewed reports — so the results behind your product can be checked and defended.
Tell us what you need to prove — we will design the bioscience work around it.
Every Guires PNL product is formulated to comply with the FEDIAF Nutritional Guidelines and the AAFCO Dog and Cat Food Nutrient Profiles. Neither body issues certificates to manufacturers, so compliance is verified independently against their published standards — and every product comes with a complete documentation package for regulatory submissions in the EU, US, Australia and Asian markets.
How we verify compliance →