Showing posts with label Veterinary News. Show all posts
Showing posts with label Veterinary News. Show all posts

Wednesday, October 6, 2021

The smarter the bird, the more mental stimulation it needs in captivity, a study has found

African grey parrot Photo by Magda Ehlers from Pexels
Researchers have discovered that intelligent birds have unique welfare needs in captivity.

These findings may apply to other brainy captive creatures including great apes, elephants and whales, said the head of the research group, Dr. Georgia Mason, Director of the University of Guelph’s Campbell Centre for the Study of Animal Welfare.

“This study provides the first empirical evidence that intelligent animals can struggle in captivity,” said Dr Mason, a professor in the Department of Integrative Biology. "Our findings could help pet owners identify which species may be more challenging to cater for as pets, because of their welfare requirements” added one of the lead authors, Dr Emma Mellor from the University of Bristol.

The study, also conducted by other researchers at University of Bristol and Utrecht University in the Netherlands, revealed for the first time that this issue can in particular hinder large-brained parrots’ in confinement.

Published recently in Proceedings of the Royal Society B, the study highlights cognitive stimulation and foods that require more complicated physical handling as ways to improve care of birds.

The researchers examined two main data sources. One was an early 1990s survey on captive breeding success involving more than 30,000 birds in the United States. The team also ran an online survey involving almost 1,400 pet parrots in 50 species for stereotypic behavior: repetitive abnormal activity such as biting at cage bars, chewing or even pulling out feathers, and swaying, bouncing or route pacing in cages.

Friday, September 17, 2021

Cartilage Resurfacing Implant Reduces Pain, Restores Hip Joint Function in Dogs


Chinni Credit: Heidi-Ann Fourkiller
A textile-based implant containing cartilage derived from stem cells reduced pain and restored hip joint function to baseline levels in a study of dogs with symptoms of moderate osteoarthritis. The study, led by researchers at North Carolina State University, Washington University in St. Louis and Cytex Therapeutics Inc., could be a significant first step toward preventative, less invasive joint resurfacing in dogs and humans.

In humans – and in dogs – a single, millimeter-thick layer of cartilage can mean the difference between an active lifestyle or painful osteoarthritis. That tiny cap of cartilage is what protects joint surfaces and allows the bones to glide over one another smoothly. Age or joint injury can cause the cartilage to degrade, leading to osteoarthritis and progressive joint pain.

“One of the holy grails of orthopedics is to replace cartilage, but there hasn’t been an effective way to do it,” says Duncan Lascelles, professor of surgery and translational pain research and management at NC State and co-corresponding author of the research. “Most of the focus is on replacing or restoring the cartilage surface with artificial materials, but regenerating cartilage isn’t possible right now. And many of the artificial products in use don’t integrate with the body.”

Farshid Guilak, the Mildred B. Simon Professor of Orthopedic Surgery at Washington University and Shriners Hospitals for Children, along with Bradley Estes and Frank Moutos, founded Cytex Therapeutics to develop an implant that could replace damaged or missing cartilage. The implant is made using a unique combination of manufacturing techniques that result in a part textile, part 3D-printed structure, which can be seeded with the patient’s own stem cells.

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