
Support milk quality, udder health and herd performance with trusted on-farm testing solutions from Millwood Product’s, a valued Genus ABS partner.
From antibiotic residue screening to mastitis monitoring and ketosis detection, reliable testing helps dairy producers make informed management decisions, protect milk quality, and maintain herd health.
Why test milk?
Producing high-quality milk starts with effective monitoring on farm. Regular milk testing can help:
- Protect bulk tank quality
- Detect mastitis earlier
- Monitor somatic cell counts (SCC)
- Identify ketosis in fresh cows
- Support milk quality assurance programmes
- Reduce the risk of costly milk rejections
By incorporating routine testing into herd management protocols, dairy farmers can make timely interventions that support both animal welfare and farm profitability.
Millwood’s comprehensive range of tests help to ensure farmers have the confidence to deliver clean, compliant, and healthy milk every day.
Antibiotic Residue Testing
Protect your tank with antibiotic testing
Antibiotic residues can contaminate the entire bulk tank, resulting in costly milk rejection and processing disruptions. Routine screening ensures treated cows are residue-free before their milk enters the system helping to protect overall farm profitability.
Millwood’s Antibiotic Testing Range
Delvotest® T – Bulk tank and individual cow (3hrs15min)

Designed for testing both individual cow and bulk tank milk, Delvotest T is a widely recognised broad-spectrum screening test capable of detecting major antibiotic groups used in dairy herds.
Delvotest® SP-NT – individual cow confidence (3hrs)
A single-cow testing solution that helps confirm milk is free from antibiotic residues before cows return to the bulk tank.
DipSensor® Rapid Test – results in 10 minutes
Provides results in approximately 10 minutes and can detect β-lactams, tetracyclines and cefalexin in cow, sheep and goat milk without requiring additional equipment.
AuroFlow™ Beta-Lactam
A simple strip test designed for rapid screening of beta-lactam antibiotic residues.
AuroFlow™ PR1ME / BT Combo
Rapid testing solutions used with a heat block to provide broader antibiotic detection within minutes.

Mastitis detection and Somatic Cell Count testing
Mastitis remains one of the most significant health challenges in dairy herds, affecting milk quality, yield and cow welfare.
Regular SCC monitoring can help identify subclinical infections before clinical symptoms appear, supporting earlier intervention and treatment decisions.
Millwood’s Mastitis detection tools
SomaFast® – Rapid Somatic Cell Count test
A practical SCC test that enables rapid assessment of udder health and mastitis risk.
Suitable for:
- Fresh cow monitoring
- Detecting subclinical mastitis
- Quarter-level investigation
- Monitoring treatment response
- High-risk herd surveillance
Ketosis testing for fresh cow management
Ketosis is a common metabolic disorder during early lactation that can negatively impact milk production, fertility and overall health.
Identifying elevated ketone levels early allows producers to intervene before performance and profitability are affected.
Featured solution
Kruuse BHB – Reliable Ketone Strip Test
A simple cow-side test for measuring β-hydroxybutyrate (BHB) levels, supporting the early detection of subclinical ketosis.
Key benefits include:
- Supports proactive herd health management
- Rapid on-farm results
- Easy-to-use strip format
- Suitable for fresh and transition cows
Benefits of on-farm milk testing
- Reliable results from established, industry-recognised testing brands
- Rapid decision-making with tests providing results in minutes
- Practical and easy to use within daily farm routines
- Reduced risk of milk rejections and avoidable losses
- Comprehensive monitoring covering antibiotic residues, udder health and metabolic status
Need help choosing the right test? Contact Millwood’s team for expert support on 01225 460234 or find out more here.
FAQs
How often should I test milk for antibiotics?
Test whenever a cow is being treated or when there is uncertainty about withdrawal periods.
Do I need equipment for these tests?
Delvotest requires an incubator, and AuroFlow™ PR1ME / BT Combo requires a heat block. All other tests require no additional equipment.
Can these tests be used on goat or sheep milk?
Yes—DipSensor® support multiple species.
When should I test for ketosis?
Fresh cows (0–21 days in milk), high-yielding cows, and animals showing reduced appetite or energy.