{"topic_id":"exotic_breeding_hamster","category":"exotic-breeding","context":"---\ntopic_id: exotic_breeding_hamster\ncategory: exotic-breeding\ntitle: \"Hamster — breeding (owner-practical care, Merck Veterinary Manual pet-owner)\"\nlang: en\nsource: \"Merck Veterinary Manual pet-owner version (merckvetmanual.com/all-other-pets), first-hand consumer care text saved to source_file; C1 byte-substring verified. Pulled 2026-08-01.\"\nsource_file: pdf-raw/owner-care/merck_hamster.txt\ndate_parsed: 2026-08-01\ntokens_estimated: 840\nverification:\n  method: substring_match\n  claims: 12\n  passed: 12\n  date: 2026-08-01\nrecovered: false\npath: exotic-breeding/exotic_breeding_hamster/01_exotic_breeding_hamster.md\nsource_document: \"Merck Veterinary Manual — pet owner version (all-other-pets)\"\ncitation:\n  authority: \"Merck Veterinary Manual (merckvetmanual.com), pet owner version\"\n  title: \"Hamster — breeding (owner-practical care, Merck Veterinary Manual pet-owner)\"\n  url: \"https://www.merckvetmanual.com/all-other-pets\"\n  retrieved: \"2026-08-01\"\n  ref: \"Merck Veterinary Manual pet-owner version — hamster care\"\n  doc_type: \"professional veterinary manual (consumer version)\"\n  needs_review: false\n---\n\n# Hamster — breeding (owner-practical care, Merck Veterinary Manual pet-owner)\n\nSource: first-hand Merck Veterinary Manual pet-owner text, saved to `source_file`; every claim below is a C1 byte-substring of it.\n\n## Claims\n\n- `Hamsters are normally housed singly except during breeding periods.`\n- `Except during breeding, it is safest to house hamsters singly.`\n- `Donnelly , BVSc, DVP, DACLAM, DABVP(ECM) , Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA Last updated: Sept 2024 v3227763 Multimedia | The best time for hamsters to have offspring is when they are between 10 weeks and 15 months old.`\n- `Breeders use pairs with 1 male and 1 female, as well as groups of hamsters with 1 male and multiple females.`\n- `Breeding of hamsters is best left to experienced breeders because hamsters (particularly females) can become aggressive during mating.`\n- `Also, a number of genetic defects are associated with various types of hamsters, so breeding hamsters without having knowledge of their genetic heritage is not recommended.`\n- `Breeding females are larger than mature males and the female hamster’s aggressiveness often means that a male hamster will be injured by a female cage mate.`\n- `As pregnant hamsters approach the time to deliver the litter, they may become restless and active and may have vaginal bleeding.`\n- `This helps them feel secure and lowers the chance that new mothers will abandon or eat their offspring.`\n- `Mothers and litters should not be disturbed for at least 7 days after the offspring are born, especially if the mother has never given birth before.`\n- `Fostering abandoned offspring onto a different mother is rarely successful.`\n- `Normal litters contain 6 to 8 pups, and offspring are weaned after about 21 to 28 days.`\n\n---\n\n**Source:** `pdf-raw/owner-care/merck_hamster.txt` · https://www.merckvetmanual.com/all-other-pets\n","sources":["exotic-breeding — Hamster — breeding (owner-practical care, Merck Veterinary Manual pet-owner) (retrieved 2026-08-01)"],"source":{"authority":"exotic-breeding","title":"Hamster — breeding (owner-practical care, Merck Veterinary Manual pet-owner)","url":"https://www.merckvetmanual.com/all-other-pets","retrieved":"2026-08-01","ref":"","doc_type":"official PDF","source_document":"Merck Veterinary Manual — pet owner version (all-other-pets)","verification_file":"pdf-raw/owner-care/merck_hamster.txt"},"source_document":"Merck Veterinary Manual — pet owner version (all-other-pets)","source_file":"pdf-raw/owner-care/merck_hamster.txt","tokens_estimated":518,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}