I got this from
http://www.ab1634.com/Should AB 1634 be enacted, the effects will likely be:
* Shelter euthanasia will increase for a few years as people give up their pets they can’t afford to spay or neuter
* Licensing rates and Vaccinations will decrease as people “hide” from the legislation,
* Revenue from licensing and vaccination programs will decline
* Small breeders will vanish from the open market immediately to save their breeds from extinction in California
* Dog and Cat shows and events will fade away, taking with them with the significant tourism revenue generated by these events
* Commercial breeding, puppy smuggling from abroad will increase resulting in unhealthy, poor quality pet populations
* Enforcement of this law is impractical so accidental litter rates will decline only slowly
* Feral cat populations will be largely unaffected
Reasons for Opposition
Health Considerations of Our Animals
AB 1634 does not address the health considerations associated with spaying and neutering animals at an early age, especially affecting the long-term health of working breeds or any dog (purebred or mixed breed) that participates in working or athletic events.
* Orthopedic Considerations: abnormal bone growth due to lack of sex hormones; lower bone density due to lack of sex hormones; increase incidence of CCL rupture; increased incidence of hip
dysplasia
* Cancer Considerations: greater risk for hemangiosarcoma and bone cancers
* Incontinence Considerations: in both sexes due to lack of sex hormones, estrogen and testosterone
* Behavioral Considerations: increased incidence of fearful behavior and phobias; aggressive behavior
* Metabolic Considerations: increased risk of hypothyroidism, acute fatal pancreatitis, diabetes, obesity...
* Infectious Disease considerations: increased incidence of infectious disease
* Surgical Considerations: surgical complications, anesthetic complications pediatrics and geriatrics, cardiac arrhythmias
* Vaccine Considerations: increased incidence of adverse reactions to vaccines