"There has been a history of animal welfare violations" at the Texas Biomedical Research Institute, the Humane Society's Kathleen Conlee said.
The administration withdrew a rule that would require poultry to be housed in spaces large enough to move freely, fully stretch their wings and have some access to outdoor space.
Some scientists are questioning the rationale behind the ban.
The corporation sells dead cats, pigeons and sharks.
Public schools purchase the animals for dissection.
Some US states forbid filming in slaughterhouses. England mandates it.
Animal abusers are much more likely to hurt and kill other humans.
This bill is part of an ongoing effort to encourage pet adoptions and curb shelter killing.
Security measures adopted to stop pets being used for smuggling as owners raise concerns over radiation threat.
Rhinos were declared extinct in Zambia in 1998, ravaged by poachers. Today they are back and living in the wild once again.