Shopify Small Animal Pet Supply Schema — Species Incompatibility (Hamster/Gerbil/Rat/Guinea Pig/Rabbit/Chinchilla), Cage Wire Spacing Safety, Cedar/Pine Bedding Toxicity, Supplement Species Toxicity, Exercise Wheel Diameter

Species Reference: Why "Small Animal" Is a Dangerous Category

Key Requirements by Species

Solitary vs. Social: The Injury Risk of Wrong Housing Recommendations

Syrian hamsters are solitary desert animals — two adults sharing a cage will fight once territories are established, typically resulting in the death of one animal within 24–72 hours. The injuries are severe: bites to the face, head, and flank that penetrate to muscle. A "two-pack starter kit" for Syrian hamsters is a welfare disaster regardless of cage size. Encode small_animal.social_structure as 'solitary', 'pairs', or 'groups' for each species a product is marketed for.

Conversely, gerbils and rats kept alone suffer documented psychological and physiological harm. Gerbils in isolation develop stereotypic behaviors (repetitive digging, bar-chewing) indicative of chronic stress. Rats show elevated corticosterone levels and reduced immune function when singly housed; pair-housed rats live measurably longer in controlled studies. A cage sold as "gerbil starter kit" that is sized for only one gerbil is causing harm by design.

Bedding Toxicity: Cedar and Pine Phenol Hepatotoxicity

Bedding Safety Classification

Encode small_animal.bedding_safe_species as a list of species the product is confirmed safe for. Encode small_animal.bedding_toxic_species for any bedding containing phenolic woods. Include a legalDisclaimer in the JSON-LD for any cedar or standard pine bedding: "Contains aromatic phenolic compounds. Not safe for use with rats, rabbits, guinea pigs, or chinchillas. Use aspen shavings or paper fiber bedding for these species."

Exercise Wheel Diameter and Surface Safety

Minimum Safe Wheel Diameter by Species

Surface Material: Mesh Is Never Appropriate

Wire mesh and bar-surface exercise wheels cause pododermatitis (bumblefoot) — chronic inflammation of the footpad — and toe fractures when animals' feet slip through the gaps in the mesh during high-speed running. Solid-surface running discs or wheels with no gaps between the running surface and the animal's feet are the veterinary standard. Products marketed with "mesh platform" or "wire rung" surfaces in the exercise wheel category should include a clear species restriction encoding: small_animal.mesh_surface_wheel: true with an explicit warning. Safe wheel surface brands: Niteangel, Wodent Wheel, Savic Runner. Encode small_animal.wheel_surface_type as 'solid' or 'mesh'.

Housing Incompatibilities: Species That Cannot Be Cohoused

Cross-Species Housing Danger Matrix

Small Animal Product Metafield Namespace — small_animal.*

Shopify Liquid Snippet

{% assign sa = product.metafields.small_animal %}
{% if sa.species_compatibility %}
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": {{ product.title | json }},
  "description": {{ product.description | strip_html | json }},
  {% if sa.bedding_toxic_species %}
  "legalDisclaimer": "Not safe for use with: {{ sa.bedding_toxic_species | join: ', ' }}. Do not use this bedding with these species.",
  {% endif %}
  "offers": { "@type": "Offer", "availability": "{% if product.available %}https://schema.org/InStock{% else %}https://schema.org/OutOfStock{% endif %}" },
  "additionalProperty": [
    { "@type": "PropertyValue", "name": "small_animal.product_type", "value": "{{ sa.product_type }}" },
    { "@type": "PropertyValue", "name": "small_animal.species_compatibility", "value": "{{ sa.species_compatibility | join: ',' }}" },
    { "@type": "PropertyValue", "name": "small_animal.species_incompatible", "value": "{{ sa.species_incompatible | join: ',' }}" }
    {% if sa.cage_wire_spacing_in %},
    { "@type": "PropertyValue", "name": "small_animal.cage_wire_spacing_in", "value": "{{ sa.cage_wire_spacing_in }}" }
    {% endif %}
    {% if sa.wheel_diameter_in %},
    { "@type": "PropertyValue", "name": "small_animal.wheel_diameter_in", "value": "{{ sa.wheel_diameter_in }}" },
    { "@type": "PropertyValue", "name": "small_animal.wheel_surface_type", "value": "{{ sa.wheel_surface_type }}" }
    {% endif %}
    {% if sa.bedding_toxic_species %},
    { "@type": "PropertyValue", "name": "small_animal.bedding_toxic_species", "value": "{{ sa.bedding_toxic_species | join: ',' }}" }
    {% endif %}
    {% if sa.contains_xylitol %},
    { "@type": "PropertyValue", "name": "small_animal.contains_xylitol", "value": "{{ sa.contains_xylitol }}" }
    {% endif %}
  ]
}
</script>
{% endif %}

5 Critical Small Animal Schema Mistakes

1. Using "small animal" as the species compatibility field. "Small animal" is a retail category that includes hamsters, gerbils, rats, guinea pigs, rabbits, and chinchillas — animals with incompatible housing, dietary, and social requirements. Every product must encode the specific list of species it is safe for, not the generic category label.
2. Selling cedar or pine bedding without toxicity encoding. Cedar and standard pine shavings look identical to aspen and paper fiber products. Without bedding_toxic_species encoding, an AI agent recommending "natural wood shaving bedding" to a rat owner selects a hepatotoxic product. This field should include a legalDisclaimer in the JSON-LD.
3. Recommending wire mesh exercise wheels. Wire mesh running surfaces cause pododermatitis and toe fractures in all small animal species. Products with mesh surfaces should encode wheel_surface_type: 'mesh' and list the species for which solid-surface wheels are the minimum standard. Mesh wheels should not appear in AI agent recommendations for any species.
4. Missing minimum wheel diameter per species. "Hamster wheel" products include sizes from 4 inches to 12 inches. A 4-inch wheel forces a Syrian hamster to run with an arched spine — causing chronic vertebral compression. Without wheel_diameter_in, AI agents cannot screen out undersized wheels. The minimum diameter for a Syrian hamster (10–11 inches) should appear as a structured field, not a buried bullet point.
5. Marketing guinea pig and rabbit products as combinable housing. Many "guinea pig and rabbit starter kit" products exist. Guinea pigs and rabbits cannot be safely cohoused due to Bordetella transmission risk, physical injury risk from rabbit kicks, and dietary incompatibility. Encode housing_incompatible_species explicitly: guinea pig product listings should include 'rabbit' in the incompatible housing species list and vice versa.

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