About 50 dogs rescued from puppy mills and sent from a shelter in Missouri arrived on Long Island Friday - just in time for the holidays.

The dogs, ages 4 months to 3 years, will soon be available for adoption at the North Shore Animal League in Port Washington, said Devera Lynn, vice president for communications at North Shore.

The dogs arrived via Pet Airways at Republic Airport in Farmingdale Friday afternoon. They are mostly small breed dogs, such as Yorkies, Brussels griffon mixes, shih tzus, Pomeranians and a variety of terriers, Lynn said.

Click here to see photos of rescued dogs

With assistance from the Best Friends Animal Society, based in Utah, about 20 dogs were rescued from puppy breeding operations and the others taken from a shelter in Joplin, Mo., that did not have enough room to accommodate them.

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The dogs will be evaluated medically and behaviorally and might be ready to go up for adoption sometime next week.

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"They were the cutest little things ever," Lynn said. "They were in good condition."

Lynn said that dogs purchased at pet stores are often the products of puppy mills, where dogs are bred and housed in inhumane conditions. She said that often about 25 percent of the dogs up for adoption at North Shore are purebred.

Earlier this month, about 150 dogs were rescued from Midwest puppy mills and taken to North Shore. Those included some older dogs used for breeding, the shelter said.

Those breeds had included dachshunds, Westies, French bulldogs, poodles, Boston terriers, beagles, Brussels griffons and bichon frises, according to a news release.

Lynn said many of those rescued have already been adopted.