Glycosaminoglycans and vitamin C in ovo feeding affects bone characteristics of chicks

Santos, Elaine TalitaSgavioli, SarahCastiblanco, Diana Maryuri CorreaDomingues, Carla Heloísa de FariaQuadros, Thays Cristina Oliveira deBorges, Liliana LongoPetrolli, Tiago GoulartBaraldi-Artoni, Silvana Martinez

Different levels of glycosaminoglycans (chondroitin sulfate and glucosamine sulfate) and vitamin C were injected in ovo to determine whether additive use influences the incubation parameters and bone characteristics of posthatch chicks. Hatchability was not affected by addition of glycosaminoglycans and vitamin C in ovo. However, chicks that received 4 µg additive showed 2.86% reduction in total mortality when compared with chicks from non-injected eggs. Moreover, tibia area and femur bone mineral density increased in chicks from eggs injected with 2.16 and 6.00 µg of additive, respectively. In ovo feeding with glycosaminoglycans and vitamin C can benefit bone development in embryos and reduce total mortality during the incubation period.(AU)

1. chondroitin
2. glucosamine
3. bone mineral density
4. bone strength
5. ascorbic acid