Regulation of the use of live animals for experimental or other scientific purposes is covered by the Animals (Scientific Procedures) Act 1986.  The law regulating the use of viable tissues or organs of animals for transplantation into humans is dealt with elsewhere and is also reserved - see Section J2 (Xenotransplantation).
Matters relating to animal health and welfare generally are the subject of separate legislation, such as, the Animal Health Act 1981.  These matters are not reserved.
TABLE OF RESERVED MATTERS Head B - Home Affairs General