[
    {
        "animalid": 100,
        "eartag_or_id": "ID-100",
        "mutations": []
    },
    {
        "animalid": 101,
        "eartag_or_id": "ID-101",
        "mutations": [
            {
                "animalid": 101,
                "mutation_id": 5,
                "mutationname": "Mut-A",
                "mutationtype": "BAC transgenic",
                "grade_id": 5,
                "mutationgrade": "het"
            }
        ]
    }
]