The Donkey and Equine Haven Rescue in Celina had a busy end-of-year season, taking in 65 donkeys and mules last month alone.

With 30 acres, the Celina property holds over 90 animals now.

Founder of Donkey and Equine Haven Rescue, Karla Vargas, told NBC that she feels like donkeys are “the most abandoned, forgotten animals.”

“It should be part of your family, not just dumping them to the slaughter,” she said. “I’ve always had a heart for them.”

The rescue organization has been in operation for 14 years, but last year saw the highest number of donkeys taken in, according to Vargas.

People often abandon these animals because the cost of maintaining them is deemed too high. Vargas has been no stranger to this cost, running a nonprofit. The price of hay, for example, has more than doubled since she started her business.

“Hay is $185 a round bale. It used to be $70,” she said.

The nonprofit is struggling to maintain 90 animals, as they usually are responsible for only around 30 at a time.

“The number of rescues we’ve had — we’re overwhelmed this month … I’ve never had this issue before,” Vargas said. “It’s heartbreaking.”

The end goal of the haven is the adoption of all the donkeys and mules they take in. To that end, Vargas explained why they make great companions for cattle ranches, for instance.

“I promise you they’re the best Ninja kickers.” They also work as good protection against coyotes or bobcats.

Interested in adopting a donkey or mule? Visit the haven’s adoption page here.

If you are looking for another way to help, you can buy a bale of hay for the donkeys. To do so, you can call or visit your local D&L Farm and Home and purchase a bale of hay to be delivered to the rescue center.