Advancing Animal Disease Detection with Integrated Molecular Diagnostics Solution

Animal diseases such as African swine fever (ASF), porcine reproductive and respiratory syndrome (PRRS), classical swine fever (CSF), avian influenza (AI), and foot-and-mouth disease (FMD) continue to pose significant challenges to livestock production, animal health, and international trade.

For veterinary authorities, diagnostic laboratories, and large-scale farms, effective disease control increasingly depends on early detection, reliable laboratory confirmation, and scalable surveillance.

As molecular diagnostics continue to advance, testing has evolved from individual assays toward integrated workflows covering sample collection, nucleic acid extraction, molecular amplification, detection, and data analysis. This article reviews major animal disease testing requirements, compares commonly used diagnostic technologies, and introduces an integrated molecular testing workflow from sample to result.

Global Animal Disease Surveillance: Growing Demand for Reliable Testing

Animal disease control increasingly relies on a combination of routine surveillance, risk-based monitoring, laboratory confirmation, and rapid outbreak response.

International organizations such as the World Organisation for Animal Health (WOAH) emphasize early detection, laboratory diagnosis, and standardized testing as key components of animal disease control.

Different regions have established their own surveillance and laboratory systems:

• United States: USDA APHIS and the National Animal Health Laboratory Network (NAHLN) support standardized testing and coordinated response for high-consequence diseases such as ASF, CSF, and avian influenza.
• European Union: The EU Animal Health Law provides a harmonized framework for disease surveillance, diagnosis, notification, and control.
• China: National animal disease surveillance and prevention programs cover major diseases including ASF, avian influenza, FMD, CSF, and PRRS.

Although regulatory frameworks differ, the overall direction is similar:

Early Detection → Laboratory Confirmation → Rapid Response → Continuous Surveillance

This is driving demand for diagnostic workflows that are sensitive, reliable, scalable, and automation-compatible. 

Major Animal Diseases and Testing Needs

Animal disease testing covers a broad range of pathogens across livestock and poultry.

• Swine Diseases: Key targets include ASFV, PRRSV, CSFV, PEDV, PRV, and FMDV. Molecular testing supports routine surveillance, herd monitoring, and outbreak investigation.
• Poultry Diseases: Key targets include highly pathogenic avian influenza virus (HPAIV), Newcastle disease virus, and infectious bronchitis virus. Rapid molecular testing helps support early detection and outbreak response.
• Other Livestock and Zoonotic Diseases

Molecular diagnostics can also be applied to FMD, brucellosis, bovine respiratory diseases, and other animal or zoonotic pathogens.

Comparing Animal Disease Detection Technologies

Different technologies serve different diagnostic purposes.

Technology	Main Target	Typical Application	Key Advantages
ELISA	Antigen / Antibody	Serological surveillance	High throughput; established workflow
qPCR	DNA	DNA pathogen detection	High sensitivity and specificity
RT-qPCR	RNA	RNA virus detection	Sensitive and widely applicable
LAMP	DNA/RNA	Rapid or decentralized testing	Fast; simple instrumentation
Rapid Tests	Antigen / Antibody	Field screening	Simple and rapid
Direct Amplification	DNA/RNA	Rapid screening	Fewer sample-preparation steps

These technologies are complementary rather than mutually exclusive. For example, ELISA may be suitable for large-scale serological surveillance, while qPCR/RT-qPCR provides direct pathogen detection. LAMP and direct amplification can further support rapid or decentralized testing. For laboratory-based pathogen detection, the overall workflow can be summarized as: Sample → Nucleic Acid Extraction → qPCR/RT-qPCR → Result.

Key Challenges in Animal Disease Molecular Detection

Animal disease molecular testing must address several practical challenges:

• Complex Sample Matrices: Blood, feces, and tissue may contain PCR inhibitors that affect amplification.
• Low-Abundance Targets: Early-stage infections may contain limited pathogen nucleic acids, requiring sensitive detection.
• High Sample Throughput: Surveillance programs may involve hundreds or thousands of samples, requiring scalable workflows.
• Contamination Control: High-volume PCR testing increases the risk of carryover contamination.
• Reagent Stability: Decentralized testing requires reagents that are easier to transport and store.

These challenges make sample preparation, amplification chemistry, workflow design, and reagent stability equally important for reliable testing.

Yeasen Solutions for Animal Disease Molecular Testing

Animal disease testing demands more than a sensitive amplification reaction. Sample type, pathogen abundance, inhibitors, workflow complexity, and testing environment can all affect the final result.

From centralized veterinary laboratories to decentralized and field testing, Yeasen provides molecular solutions covering the key stages of animal disease detection:

Sample Preparation & Nucleic Acid Extraction → qPCR / RT-qPCR

or

Sample Preparation & Nucleic Acid Extraction → Isothermal Amplification → Detection

Designed around different testing needs, Yeasen's portfolio supports routine pathogen detection, rapid field testing, multiplex surveillance, and flexible assay development.

1. Routine Pathogen Detection — qPCR & RT-qPCR

For routine veterinary diagnostics and surveillance, qPCR and RT-qPCR provide a familiar workflow with sensitive and specific nucleic acid detection.

Yeasen offers both ready-to-use pathogen detection kits and flexible amplification mixes, allowing laboratories to choose between standardized testing and in-house assay development.

• For DNA Pathogens — ASFV Detection

African swine fever virus (ASFV) is a key target in swine disease surveillance. Yeasen provides flexible qPCR solutions for different ASFV testing needs, including universal qPCR, fast qPCR, direct qPCR for swab samples, and lyophilization-ready formats.

These formats help laboratories adapt the workflow to different requirements, from routine laboratory testing to simplified sample processing and alternative reagent formats.

Application: ASFV surveillance, herd monitoring, outbreak investigation, and routine veterinary testing.

Performance Data

Sample	Yeasen	Supplier A	Supplier B	Supplier C
Sample 1	36.93	N/D	38.23	N/D
Sample 2	31.67	36.45	32.97	31.97
Sample 3	32.57	38.23	34.07	33.17
Sample 4	27.30	31.20	29.23	27.69
Sample 5	36.80	N/D	38.49	36.97
Sample 6	29.83	35.65	31.21	30.81
Sample 7	36.58	N/D	N/D	N/D
Sample 8	N/D	N/D	N/D	N/D
Sample 9	35.90	N/D	38.24	37.93
Sample 10	37.31	N/D	N/D	41.48
Sample 11	26.92	30.17	28.56	26.67
Sample 12	17.67	24.69	20.12	19.78
Sample 13	18.56	24.52	20.18	20.00
Sample 14	26.18	31.99	29.46	27.26
Sample 15	21.43	29.59	23.66	23.19
Sample 16	25.08	30.98	27.68	27.08
Detection Rate	93.75%	62.50%	81.25%	81.25%

Figure 1. ASFV qPCR master mix comparison on clinical samples.

Conditions: SLAN qPCR system; 25 μL total volume (10 μL template); magnetic‑bead extracted clinical nucleic acids. Thermal profile: 95 °C 3 min, 40 cycles (95 °C 15 s, 60 °C 30 s). N/D = Not Detected.
Result: Among 16 clinical ASFV samples, Yeasen reagent(16961) obtained the highest detection rate of 93.75 %, outperforming Supplier A (62.50 %), Supplier B (81.25 %) and Supplier C (81.25 %). Lower Ct values indicate stronger amplification performance.

Figure 2. Stability evaluation.

After storage at 37°C for 7 days, Yeasen Product showed comparable amplification curves, Ct values, and detection rates to the −20°C control when tested with ASFV positive controls, sensitivity-level samples, and NTCs. No nonspecific amplification was observed in the NTCs.

• For RNA Pathogens — PRRSV, PEDV, Rotavirus & More

Many important veterinary pathogens are RNA viruses, including PRRSV, PEDV, rotavirus, and other swine and poultry viruses. Yeasen provides flexible one-step RT-qPCR solutions that combine reverse transcription and PCR amplification in a single reaction.

Available formats cover universal RT-qPCR, all-in-one premixed, direct RT-qPCR, and other workflow-oriented formats, helping laboratories adapt RNA virus detection to different sample types and testing requirements.

Application: RNA virus surveillance, routine screening, herd monitoring, and outbreak investigation.

Performance Data

Figure 3. Detection performance of Product 16630 for three porcine diarrhea targets.

Nucleic acids extracted from vaccine samples were tested at sensitivity-level concentrations using Product 16630 on the Tianlong real-time PCR system. Product 16630 achieved a 100% detection rate across all tested sensitivity-level samples for the three porcine diarrhea targets.

Figure 4. Amplification performance on serially diluted low‑concentration RNA from real vaccine samples.

Performance comparison of Supplier V* and Yeasen 11896 under 10‑fold, 20‑fold and 40‑fold template dilution (n=8 replicates per condition). Total positive detections: Supplier V 6/24, Yeasen 11896 13/24.
 

2. Rapid & Field Testing — LAMP & RPA

For on-site screening and decentralized testing, isothermal amplification can provide a simpler alternative to conventional PCR workflows. Yeasen offers LAMP and RPA solutions with fluorescence or visual colorimetric detection, including lyophilization-ready formats for selected applications.

These solutions are designed to support testing where equipment, workflow complexity, or reagent storage may be limiting factors.

Application: rapid screening, decentralized testing, field surveillance, and point-of-need testing.

Performance Data

Figure 5. Compatibility and Performance Evaluation of Dye-Based LAMP Reagent with Nucleic Acid Release Reagent

(A) Direct LAMP amplification from oral swab lysates. Oral swabs were processed in Nucleic Acid Release Reagent (Cat#16964) and used directly as templates. Results demonstrate effective amplification when paired with the dye-based LAMP Reagent (Cat#16729ES).

(B) ASFV target detection: Nucleic Acid Release Reagent vs. standard DNA diluent. ASFV targets diluted in Nucleic Acid Release Reagent (Cat#16964) and standard DNA diluent were tested at identical concentrations. Results indicate that the Nucleic Acid Release Reagent does not compromise target detection.

3. Flexible Assay Development — Molecular Enzymes & Custom Solutions

Not every animal pathogen has a standardized commercial detection kit. Laboratories may also need to develop or adapt assays for new targets, sample types, instruments, or testing formats.

Yeasen provides key molecular enzymes and assay components for flexible assay development, including DNA polymerases, reverse transcriptases, RNase inhibitors, UDG, and LAMP/RPA enzymes.

These building blocks support the development and optimization of pathogen-specific molecular assays across different veterinary applications.

Application: new pathogen assays, assay optimization, multiplex panel development, and customized testing workflows.

Build the Right Workflow for Every Testing Need

Animal disease testing can vary widely—from routine herd surveillance and laboratory confirmation to rapid field screening and emerging pathogen detection. The right molecular workflow should therefore be built around the pathogen, sample type, testing environment, and required turnaround time.

With flexible solutions for nucleic acid extraction, qPCR, RT-qPCR, LAMP, RPA, and assay development, Yeasen supports veterinary laboratories across different testing scenarios.

From routine surveillance to rapid field testing, choose the workflow that fits your application and move from sample to reliable results with confidence.

Related Products

Product Category	Product Function	Product Name	Catalog No.
Sample Preparation	Nucleic Acid Release Agent	Nucleic Acid Release Agent V3	16964ES
	Magnetic Universal Viral DNA/RNA Extraction Kit	Hieff™ Magnetic Universal Viral DNA/RNA Kit	18521ES
Routine Pathogen Detection — qPCR & RT-qPCR	ASFV qPCR Detection Kit	African Swine Fever Virus Fluorescent PCR Detection Kit (UDG plus)	16961ES
	Rapid,Universal, qPCR Mix	Hieff Unicon™ HiSens TaqMan Multiplex qPCR Mix (UDG plus)	16967ES
	Direct Swab Amplification, qPCR Mix	Hieff Unicon™ Robust Multiplex qPCR PreMix V1 (UDG Plus)	16945ES
	High Sensitivity, Universal, Lyophilizable	Hieff Unicon™ Universal TaqMan Multiplex qPCR Master Mix (UDG plus)	11893ES
	Universal, RT-qPCR Mix	Hifair™ V2 Multiplex One Step RT-qPCR Probe Kit (UDG Plus, GC enhancer plus)	16630ES
	Direct Swab Amplification, RT-qPCR Mix	Hifair™ Universal Advanced Multiplex One Step RT-qPCR Mix (Swab Direct PCR)	16930ES
	All-in-one tube	Hieff™ Advanced One Step RT-qPCR Probe Mix(UDG Plus, One tube)	16921ES
	Support prime&probe premixing	Hifair™ Superpro Fast One Step RT-qPCR Master Mix (One-tube, 2G)	16913ES
PCR Instrument	Real-Time Fluorescence Quantitative PCR Instrument	Celemetor™ Real-Time Fluorescence Quantitative PCR Analysis System	80521ES
Nucleic Acid Decontamination	Aerosol Decontamination	DNA/RNA Remove Aerosol Decontamination Agent	19702ES
Rapid & Field Testing — LAMP & RPA	Fluorescent Dye Method	RT-LAMP Fluorescent Assay Kit (Bst Plus HSS)	16729ES
	Fluorescent RPA (Exo Probe, Lyophilized)	DNA Lyo Rapid Isothermal Amplification Kit (Fluorescent)	16904ES
	Chromatographic RPA (Nfo Probe, Lyophilized)	DNA Lyo Rapid Isothermal Amplification Kit (Chromatographic)	16906ES
	Electrophoretic RPA (Lyophilized)	DNA Lyo Rapid Isothermal Amplification Kit (Basic)	16908ES