Blood Python Record Keeping: A Guide for Serious Breeders

Blood python breeding requires a record-keeping approach that accounts for the species' distinct biology, longer development timelines, and the specific information buyers in the blood python community expect. The principles are the same as with any reptile collection, but the details are different.

Collection-Level Records

Blood python collections tend to be smaller than ball python collections, but the animals are individually more valuable and the investment in quality breeders is substantial. A foundation female for a breeding program can represent a significant investment. Documentation protects that investment by maintaining verifiable breeding history, lineage, and health records.

Every animal in a blood python collection should have:

• Unique ID and source documentation
• Subspecies notation: Python brongersmai (Sumatran blood python), P. brongersmai (Malay blood python), or P. curtus (Borneo short-tailed python), depending on your collection
• Locality or captive-bred generational notation
• Weight history from acquisition
• Feeding history
• Breeding history by season

Husbandry Records

Environmental Requirements

Blood pythons require:

• Hot spots: 86-90F (slightly cooler than many sources suggest, and cooler than ball pythons)
• Ambient: 78-82F
• Humidity: 70-80% consistently; higher humidity prevents the skin problems blood pythons are prone to in drier conditions

Document your temperature and humidity settings per enclosure or rack. Note any changes. If an animal develops a skin issue or has a problem shed, your environmental records give you the baseline data to diagnose causes.

Feeding Records

Blood pythons are typically aggressive feeders when well-established. Log every feeding: date, prey type, size, result. Blood pythons in breeding condition eat on a different schedule than non-breeding animals, and feeding log data is part of the breeding record.

Many blood python breeders feed large rats, rabbits, or guinea pigs to adult females. Document prey type specifically, as switching prey types can cause temporary refusals worth noting in the feeding record.

Shed Records

Blood pythons should shed in relatively complete cycles. Problem sheds in blood pythons often indicate a humidity issue. Document every shed with date and quality. A blood python that suddenly shifts to consistently poor sheds needs a husbandry evaluation.

Breeding Season Records

Blood python breeding records follow the same structure as ball python records but with different expected dates and parameters:

• Cycling start: late September to October
• Pairings: October through January
• Ovulation window: variable, often more difficult to observe than in ball pythons due to the heavier body type
• Lay dates: typically February through April
• Hatch dates: July through September at 84-86F incubation

Ovulation Documentation in Blood Pythons

Blood python ovulation can be harder to detect than in ball pythons because the animals are so heavily bodied. Many breeders watch for behavioral changes (increased restlessness, reduced feeding response, changes in posture and position) rather than relying solely on a visible swell. Document whatever observations prompted you to mark an estimated ovulation date, so future seasons provide reference data.

Morph Records

The blood python morph market is much smaller than ball pythons, but it exists and is growing. Morph documentation follows the same principles:

• Document all expressed traits
• Document known het status with confirmed vs. possible designation
• Record parent IDs for self-produced animals
• Note any genetic uncertainty in the record

Blood python morph genetics are less thoroughly characterized than ball python genetics. Some traits have uncertain inheritance patterns. Document what is known and what is uncertain. Honest genetic documentation builds credibility in the smaller, closely-knit blood python community where reputation matters enormously.

HatchLedger supports blood python records with the same tools used for ball pythons: animal profiles, weight and feeding history, breeding season records, and clutch documentation.

Related content: Blood Python Breeding Records | Blood Python Cycling Guide | Blood Python Species Guide

Sources

• Association of Reptilian and Amphibian Veterinarians (ARAV)
• Reptile and Amphibian Ecology International
• Blood python community (MorphMarket, Fauna Classifieds)