Calf Serum (CS / BCS) — EU, US & Australian Origin | Most Cost-Effective Bovine Serum
Calf Serum (CS), also known as Bovine Calf Serum (BCS), is collected from healthy bovine calves between 14 days and 6 months of age. At this stage, the calf has developed a functional immune system with progressively increasing IgG levels from colostrum uptake — resulting in a serum with higher total protein content and stronger growth-promoting activity than adult bovine serum, while remaining significantly more cost-effective than FBS or Newborn Calf Serum. Calf Serum is the preferred choice for high-volume routine cell culture applications where maximum cost efficiency is the primary driver. SeamlessBio supplies Calf Serum from EU, US and Australian origin, sterile filtered at 0.2 µm.
Applications
| Application | Protocol | Note |
|---|---|---|
| Large-scale routine cell line maintenance | 5–10% CS in DMEM, RPMI-1640, MEM — direct FBS replacement at same concentration | CHO, HeLa, Vero, HEK293, 3T3, BHK-21, MDCK — most cost-effective option for high-volume culture | Kostenoptimierte Routinekultur |
| Veterinary vaccine production | 5–10% CS in BHK-21, MDCK or Vero production medium | Foot-and-mouth disease, veterinary virus vaccines — CS widely used in agricultural vaccine manufacturing | Veterinärimpfstoffe |
| Agricultural and veterinary research | 5–20% CS in species-appropriate medium | Bovine, ovine, porcine, equine cell lines — CS is species-matched for ruminant systems | Veterinärforschung |
| Cell-based assay development (non-IgG sensitive) | 5–10% CS as standard serum supplement | Cytotoxicity, proliferation, metabolic assays where IgG background is not critical | Zell-basierte Assays |
| Large-scale cell banking | CS in cryopreservation medium for master and working cell banks | Most economical bovine serum for high-volume banking programmes | Großmaßstab-Banking |
| Bioreactor seed train (non-ATMP) | 5–10% CS in expansion medium for N-2 to N-1 seed stages | Cost optimisation at early seed stages before switching to FBS or serum-free at production scale | Seed Train |
Specifications
| Parameter | Specification |
|---|---|
| Species | Bovine (Bos taurus) — calves 14 days to 6 months of age |
| Collection | Pooled healthy calves, sterile bleed under controlled conditions |
| Filtration | 0.2 µm sterile filtered |
| Endotoxin | Tested per lot — LAL method |
| Haemoglobin | ≤20 mg/dL |
| Mycoplasma | Tested — negative |
| BVDV | Tested — negative |
| Origin | EU, US or Australian — specify on order |
| Processing options | Standard | Heat Inactivated (56°C/30 min) | Gamma Irradiated (25–45 kGy) on request |
| Volumes | 100 mL, 500 mL | Bulk on request |
| Storage | −20°C | Batch reservation up to 6 weeks |
| Documentation | CoA, CoO, MSDS included | TSE/BSE statement on request |
Frequently Asked Questions
What is the difference between Calf Serum and Newborn Calf Serum?
Newborn Calf Serum (NCS) comes from calves ≤10 days old, before significant colostrum IgG uptake — resulting in lower IgG and slightly higher growth factor content. Calf Serum (CS) comes from calves up to 6 months old, with progressively higher IgG levels. For most routine cell culture applications, both are equivalent. NCS is preferred when lower IgG background is important.
Can Calf Serum replace FBS in all applications?
For standard immortalised cell lines, high-volume vaccine production, and veterinary research, yes — CS is a direct, cost-effective FBS replacement. For hybridoma culture, sensitive primary cells, iPSC, or ATMP manufacturing where low IgG and maximum growth factor content are critical, FBS is the better choice.
Is Australian origin Calf Serum available?
Yes — SeamlessBio supplies CS from Australian, US and EU origin. Australian origin provides the highest biosafety documentation (negligible BSE/TSE risk, OIE classification) and is permitted for USDA and EU regulatory submissions.
Further Information
Bulk pricing, batch reservation, origin documentation: info@seamlessbio.de | +49 851 37932226
Free test volumes available. No minimum order quantity.
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