DENVER -- A former Denver animal shelter volunteer worker has been sentenced to two years supervised probation and ordered to stay away from animals after pleading guilty to having sex with a dog.

Gustavo Castanon, 34, was sentenced Tuesday in Denver District Court following his September arrest at Denver's Municipal Animal Shelter, according to Lynn Kimbrough, Denver District Attorney's Office spokeswoman.

Castanon will remain in jail for 10 days on an Immigrations and Customs Enforcement immigration hold. If he is not picked up by ICE within that period, he will be released on probation.

Castanon was accused of coaxing a basset hound at the shelter to perform oral sex on him.

Kimbrough said he pleaded guilty to a misdemeanor animal-cruelty charge and that an indecent-exposure charge was dropped as part of a plea bargain.

A probation officer will make surprise visits to his home during his probation to make sure no animals are present.