The Los Angeles County Board of Supervisors has called for an investigation into the Department of Animal Care and Control's handling of allegations that horses were abused at a ranch in Saugus.
At the urging of Supervisor Mike Antonovich, the board also asked the department to review its procedures for impounding animals.
Antonovich aide Peter Whittingham said the supervisor called for the investigation because the case involved the Castaic Animal Shelter, which was harshly criticized last year by Santa Clarita Valley horse owners for its response to charges of horse neglect at another ranch in Saugus.
A department review of the October case found that two of the shelter's officers were slow to correct unsanitary conditions at the ranch, where 43 horses with untrimmed hoofs were living in manure-filled pens.
George Baca, the department's deputy chief, said one officer was suspended and another reprimanded.
The owner of the horses pleaded guilty to 90 misdemeanor counts of animal cruelty and was placed on two years' probation.