Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Peebles, E. David
Committee Member
Miller, William W.
Committee Member
Purswell, Joseph L.
Committee Member
Zhang, Li
Committee Member
Olanrewaju, Hammed A.
Other Advisors or Committee Members
Pharr, G. Todd
Date of Degree
8-6-2021
Original embargo terms
Visible to MSU only for 2 years
Document Type
Graduate Thesis - Open Access
Major
Poultry Science
Degree Name
Master of Science
Degree Name
Master of Science (M.S.)
College
College of Agriculture and Life Sciences
College
College of Agriculture and Life Sciences
Department
Department of Poultry Science
Department
Department of Poultry Science
Abstract
Effects of various levels of L-ascorbic acid (L-AA) (12 and 25 mg) in ovo injected at 17 and 18 days of incubation, on embryonic and posthatch physiological variables in Ross 708 broilers were investigated. There were no significant treatment effects on the hatchability or serum concentrations of L-AA in the broilers. Eye L-AA concentrations were higher, and plasma nitric oxide levels were lower in male chicks treated in ovo with 12 mg of L-AA. While exposed to elevated atmospheric NH3 levels, the in ovo injection of 12 mg of L-AA increased the body weight gain and decreased the feed conversion ratio of the broilers from 0 to 28 days of age (doa). Decreased tracheal attenuation incidence was also experienced at 0 doa in the in ovo injected L-AA groups, and tracheal inflammation was significantly reduced at 28 doa in response to the in ovo injection of 12 mg of L-AA.
Sponsorship
USDA
Recommended Citation
Mousstaaid, Ayoub, "Effects of the in ovo injection and dietary supplementation of L-ascorbic acid on the performance, tissue L-ascorbic acid concentrations, inflammatory response, and trachea histomorphology of Ross 708 broilers raised under normal and elevated atmospheric ammonia levels" (2021). Theses and Dissertations. 5180.
https://scholarsjunction.msstate.edu/td/5180