Roughly 500 samples were taken at the San Angelo Coliseum where authorities have been holding the children. The state attorney general's office sent 10 technicians on Monday to begin taking court-ordered samples as child welfare officials try to sort out the complicated family relationships at the compound.
Spokeswoman Janece Rolfe said the testing at the coliseum was completed late Tuesday, but technicians are still taking samples from parents in Eldorado.
Child Protective Services moved 114 children from the coliseum on Tuesday to foster care. Eight buses with the children on board rolled out bound for facilities throughout the state, reports CBS News correspondent Randall Pinkston. Boys were on the first bus, then girls; some waved and even smiled.
Child Protective Services declined to say when the other children might be moved, but a half dozen buses arrived at the coliseum on Wednesday morning.
The children eagerly waved and smiled at television cameras, even as attorneys for the children complained they were not warned their clients would be moved so quickly.
A hearing was scheduled for Wednesday afternoon for lawyers representing the children to air concerns about how the children will be cared for in foster homes.
The remaining 300 children were expected to be moved on Thursday, said Guy Choate, a state bar official who has been coordinating the attorneys brought from all over the state to represent them.
Judge Barbara Walther signed the order Tuesday allowing the state to begin moving the children into temporary foster care while the state completes DNA testing and develops individual custody and treatment plans.
Technicians began testing children on Monday. The state added a testing site closer to the ranch, in the Eldorado courthouse square, on Tuesday.
Women in prairie dresses and men with shirts buttoned to their necks trickled into a stone building flanked by deputies to offer DNA samples. Results will likely take a month or more.
Arriving in pickup trucks and sport utility vehicles a few at a time, the parents came to allow technicians in lab coats to swab inside their mouths as they fight to regain custody of their children.
Their lawyers said many believe the testing is invasive and unnecessary.
"We've told them to cooperate, but there are a lot of people who are reluctant," said Cynthia Martinez, a spokeswoman for the Legal Aid attorneys who represent dozens of mothers. "There's a perception there that the state will be using it to separate them" rather than reunite them with their children.
David Williams, a former member of the Fundamentalist Church of Jesus Christ of Latter Day Saints, arrived from Nevada to give a DNA sample.
Clutching photos of his boys, ages 5, 7 and 9, Williams looked at his feet as he said his children were "taken hostage by the state."
"I have been an honorable American and father and I have carefully sheltered my children from the sins of this generation," Williams said. He denied the children living at the ranch were abused.
Susan Hays, an attorney for a toddler in state custody, said many of the fathers are reluctant and some may have left the state, fearing that the tests are really designed to help prosecutors make criminal abuse cases.
The state won the right to put the children in foster care on suspicion that FLDS members pushed underage girls into marriage and sex and that all the children raised in the church are in danger of being victims or becoming predators.
The children have been removed from the Yearning For Zion Ranch, the renegade Mormon sect's compound in Eldorado; they stayed at historic Fort Concho in San Angelo before being moved to the larger coliseum last week.
CPS spokesman Darrell Azar said child welfare officials want to move the children to a more homelike setting.
"They need to be out of the limelight," he said. "Children can't get into a normal routine in a shelter."
CPS said in its placement plan - attached to Walther's order - that it will try to place mothers under 18 with their children and to keep sibling groups together. Some of the families may have dozens of siblings.
Walther ordered that the children taken from the compound be given DNA tests after child welfare officials complained they couldn't identify the children and parents. The judge ordered any known or suspected parents to also get tested.
All the children are supposed to get individual hearings before June 5 to help determine whether their parents may be able to take steps to regain custody or they'll stay in state custody.
FLDS spokesman Rod Parker said at a news conference Tuesday in Salt Lake City that Texas doesn't know how to handle sect children, and that efforts to keep them from being moved have been ignored.