That little trick was developed back in the early 70s by the late Thomas Huff, the pioneer of Epicrates maintenance and breeding. He took non-feeders for car rides back & forth over train tracks. When he got home they would immediately feed.
I'm a firm believer that our captive reptiles, especially snakes, are not provided with enough stimulation in captivity. Sure, they live to record ages and reproduce three times a year but they are not the same snakes that live in the wild. Snakes are far more sophisticated organisms that most keepers give them credit for. I think that they often, no, most of the time suffer from some level of boredom.
Many of us know a particular keeper of montain rattlesnakes. His cages are large, landscaped with soil, leaves and rock formations, several temerature gradients *and* several different humidity spots. He feeds his breeders one or two mice per year. His words. The mice are starved for several days before being given to the snake. I believe an occasional frozen lizard may be thrown in but his success is perhaps as good as it gets. Babies everywhere. The adults are firmly built, beautiful, alert and active. And none of the rattlesnakes or kingsnakes displayed the ugly "cellulite" fatty deposits under the skin.
I'm as guilty as anyone with my Rubbermade trays but as I cut back on my huge collection after all these years, I'm going to begin a new regimen of cage set-ups and husbandry techniques.
Might be something to ponder.
Cheers,
Terry Vandeventer