Pathogens in livestock operations span viruses, bacteria, and fungi. Each species faces a distinct pathogen spectrum, and mixed infections are the rule rather than the exception — PRRSV frequently co-occurs with Haemophilus parasuis or Streptococcus suis in swine; avian influenza is often complicated by secondary E. coli infection.
ASFV, PRRSV, CSFV, PCV2/3, PEDV, TGEV
AIV, NDV, IBDV, IBV
FMDV, LSDV, BVDV
Streptococcus suis, Actinobacillus pleuropneumoniae, Haemophilus parasuis, E. coli
Salmonella Pullorum, Pasteurella, Riemerella anatipestifer
Mycobacterium bovis, Brucella, Pasteurella multocida
Aspergillus fumigatus, Aspergillus flavus
Candida spp., dermatophytes
Deoxynivalenol-producing Fusarium spp.
⚠️ Fungal cell walls contain chitin and glucan — lysis is significantly harder than bacteria.
From the farm gate to the diagnostic lab, these six challenges define the daily reality of veterinary molecular testing.
Swabs carry mucus proteins, blood contains hemoglobin and clotting factors, feces harbor polysaccharides + bile salts + humic acids, and tissue releases massive host genomic DNA. Each sample type presents a completely different inhibitor profile.
Humic acids, bile salts, and polysaccharides in feces are potent PCR inhibitors. Homogenized tissue releases abundant host DNA and proteins that interfere with amplification. Without rigorous purification, Ct values drift high or fail entirely.
Fibrin and blood clots are common in field collections without timely anticoagulant. Clot fragments clog column filters; fibrin networks wrap around magnetic beads during extraction, causing drastic yield drops or total failure.
Lung, spleen, and lymph node tissues require thorough homogenization to release intracellular pathogen nucleic acids. Fungal cell walls are especially resilient — conventional lysis buffers fail to penetrate, causing fungal pathogens to be missed in mixed-infection samples.
ASFV (DNA virus) + PRRSV/PEDV (RNA virus) co-infections in swine; AIV (RNA) + Salmonella co-infections in poultry. Traditional split-tube extraction doubles hands-on time — processing dozens of samples invites mix-ups and cross-contamination.
County-level veterinary stations and on-farm labs often lack cold storage. Phenol-chloroform methods are too toxic; column-based extraction is low-throughput and manual; enzyme-dependent reagents risk inactivation during transport and storage without refrigeration.
YALEPIC® MagEVO Pathogenic Microbe DNA/RNA Extraction Kit (Cat# YG28001) employs a three-stage strategy — chemical lysis + mechanical disruption + high-affinity silica magnetic bead purification — purpose-built for the diverse sample types and broad pathogen spectrum encountered in livestock operations. Whether samples originate from swine, cattle, sheep, poultry, aquaculture, or companion animals, this kit simultaneously purifies total nucleic acids from viruses (DNA/RNA), bacteria (G+/G−), and fungi in a single-tube workflow.
Simultaneously extracts DNA viruses (ASFV, PCV), RNA viruses (PRRSV, FMDV, AIV), G+/G− bacteria, and fungi from a single sample — no pathogen missed in mixed infections. Ideal for multi-pathogen panel testing.
Swabs (nasal/pharyngeal/cloacal), anticoagulated whole blood, blood clots, feces, tissue homogenates (lung/spleen/lymph node/liver), and bacterial/fungal culture — a single reagent solves the full spectrum of livestock sample matrices.
Optimized wash system effectively removes hemoglobin, humic acids, mucus proteins, and other PCR inhibitors. A260/A280 consistently 1.8–2.0. Trace pathogen detection rate improved by over 30%.
Magnetic bead-based workflow compatible with both magnetic-rod and pipetting-type automated nucleic acid extractors. Standardized 96 samples per batch processing — dramatically reduces manual error and cross-contamination risk.
All components stable at 10–30°C for 12 months. Ambient shipping, ambient storage — no refrigerator or freezer needed. Exceptionally practical for on-farm labs and county veterinary stations with limited infrastructure.
100% nano magnetic bead purification — no toxic organic solvents. Protects laboratory personnel and complies with green laboratory standards. Safe for use even in basic lab settings.
⚡ Pro Tip: For tissue samples, pre-treat by grinding/homogenization. For blood clots, the kit’s lysis buffer contains active proteinase K to digest fibrin networks — preventing bead fouling and yield loss. Mince the clot or vortex-disaggregate before adding lysis buffer, then incubate at 56°C for 15 min.
Six sample categories covering the most common veterinary diagnostic specimens.
The purified DNA/RNA is nuclease-free and inhibitor-free, directly compatible with qPCR, RT-qPCR, mNGS, and microarray platforms.
A chemical lysis + mechanical bead-beating dual strategy. The lysis buffer simultaneously penetrates viral envelopes/capsids, bacterial cell walls (including the thick peptidoglycan layer of G+ bacteria), and fungal cell walls (chitin-rich). Combined with grinding beads, even hard-to-lyse fungi like Candida and A. fumigatus, and thick-walled bacteria like S. suis and M. bovis, release their nucleic acids efficiently.
Surface-modified silica magnetic beads exhibit high affinity for both DNA and RNA under optimized binding conditions. Beads preferentially capture nucleic acid molecules while leaving PCR inhibitors — fecal humic acids, blood hemoglobin, tissue collagen, mucus polysaccharides — in the liquid phase. A single magnetic separation step achieves efficient purification. This is the key reason the kit excels with feces (humic acid interference) and tissue (high host gDNA background).
Sequential optimized wash buffers remove proteins, lipids, and residual salts. Final elution uses pre-warmed, low-salt elution buffer under mild conditions to maximize nucleic acid integrity. The product consistently yields A260/A280 1.8–2.0, free of nucleases and inhibitors — ready for qPCR, RT-qPCR, microarrays, and mNGS library preparation.
A: Absolutely. This is one of the kit’s core strengths. In routine swine farm screening, the same nasal swab or blood sample frequently requires simultaneous ASFV and PRRSV testing. The kit co-binds DNA and RNA in a single lysis reaction; the final eluate contains both nucleic acid templates, ready for downstream PCR and RT-PCR.
A: The kit’s wash system has been specifically optimized for fecal inhibitors — humic acids, bile salts, and polysaccharides. After multi-step magnetic bead washing, humic acid removal efficiency significantly surpasses traditional column-based methods. When processed on an automated workstation, A260/A280 consistency is excellent and qPCR Ct deviation is controlled within 1 cycle.
A: Yes. The lysis buffer contains active proteinase K that effectively digests the fibrin network in blood clots. We recommend mincing or vortex-disaggregating the clot before adding lysis buffer, followed by 56°C incubation for 15 minutes. This is especially practical for field blood collections where timely anticoagulant addition is not feasible.
A: Weigh 10–30 mg of tissue, add PBS or saline, and homogenize thoroughly using a tissue homogenizer. Take 200 μL of homogenate supernatant for the standard extraction protocol. For fibrous lung tissue, briefly centrifuge the homogenate (800g, 2 min) and use the supernatant. For nucleic acid-rich tissues like spleen, control the sample input to avoid magnetic bead binding saturation.
A: This is precisely why YALEPIC® MagEVO is especially friendly for basic laboratories — all components are stable at 10–30°C for 12 months. Ambient shipping, ambient storage — no refrigerator or freezer required. Ideal for on-farm testing rooms, county veterinary stations, and other settings with limited cold-chain infrastructure.
A: Yes. The magnetic bead-based workflow is compatible with major magnetic-rod extractors (e.g., Thermo Fisher KingFisher series, Allsheng Auto-Pure series) and pipetting-type automated workstations (e.g., Hamilton, Beckman Coulter). Simply arrange the lysis/binding plate, wash plates, and elution plate according to your instrument’s preset program.
🏷 Tags:
Livestock Pathogen Detection | Animal Disease Nucleic Acid Extraction | Veterinary Pathogen DNA/RNA Extraction | Magnetic Bead Nucleic Acid Extraction | Swine Disease Testing | Poultry Disease Testing | ASFV Nucleic Acid Extraction | FMDV Detection | Avian Influenza Testing | Swab/Blood/Clot/Feces/Tissue Nucleic Acid Extraction | Bacteria-Fungi-Virus Co-Extraction | Swine Farm Pathogen Screening | Ranch Biosecurity | Veterinary PCR Testing | Veterinary Diagnostic Reagents | Automated Nucleic Acid Extraction | YALI BIOTECH YalePic MagEVO
Our team is ready to support your livestock pathogen detection workflow — from on-farm screening to centralized diagnostic labs.
This article is contributed by the YALI BIOTECH technical team for veterinary professional reference. Always follow the product instructions for use.
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