Immunization timelines and serum titres are influenced by antigen immunogenicity and individual animal variation.

Animal immunization is the second step of antibody development: with antigen in hand, a standardized immunization programme raises a high-titre immune response and builds a high-quality immune repertoire for screening. SanjingBio keeps its own alpaca and rabbit herds — immunization is never outsourced — and the entire process is operated by a technical team with over 15 years of industry experience; alpaca finishes in 35 days and rabbit in 28, feeding straight into phage display, yeast display and other downstream screening.

SanjingBio provides alpaca and rabbit immunization services under standardized protocols and strict quality control, run end to end by specialists with 15+ years of experience so every batch yields a high-quality antibody repertoire.
Alpaca immunization links seamlessly into our VHH screening (phage or yeast display), recombinant expression and functional characterisation — an integrated immunize–screen–validate route that shortens timelines and raises the yield of highly specific nanobodies.
The service accommodates targets across oncology, infectious disease, neurodegeneration and other active fields.

Mesothelin, long underestimated, has moved from the lab to the clinical frontier across CAR-T, ADCs and bispecifics. With our cellular EC50 and internalisation data.
May 27, 2026

Both formats drop parts of the native immunoglobulin. We compare structure, solubility, stability, size and production cost, then their therapeutic use.
Jul 15, 2026

Heavy-chain-only antibodies, found in camelids and cartilaginous fish in the 1990s, lose the CH1 domain and pair no light chain — leaving a single variable domain of roughly 15 kDa, nanometre-scale.
Jun 10, 2026
Housing, immunization and bleeds all happen at our own facility — never outsourced. Immunization schedules, titre curves and animal health records are delivered with each batch, and progress is visible at any time.
Share the intended application and what you already have in hand. A scientist — not a sales rep — will scope feasibility, suggest the right route and send a quote, usually within one business day.