title: Investigations of oxidant/antioxidant status and hemoglobin biophysical properties in buffalo calves with special reference to inferior preweaning vitality.
abstract: The present study aimed to investigate oxidant/antioxidants status and some biophysical properties of hemoglobin in preweaning buffalo calves in relation to their vitality. A total number of 253 buffalo calves (2-3 months old) were clinically examined, the vitality of these animals were recorded and blood samples were collected for determination of some oxidant-antioxidant values, as well as some hemoglobin biophysical properties. Results indicated that 38.74% of the examined calves showed preweaning inferior vitality as indicated by dullness, low growth rate, rough coat and signs of scoring. Inferior vitality calves have high malondialdehyde (MDA, p<0.001) and nitric oxide (NO, p<0.001) and low catalase (CAT, p<0.001), superoxide dismutase (SOD, p<0.001), ascorbic acid(p<0.01), glutathione reduced (GSH, p<0.001), total antioxidant capacity (TAC, p<0.001), zinc (Zn, p<0.01), copper (Cu, p<0.01), iron (Fe, p<0.05) and selenium (Se, p<0.001) in their blood. The electrical conductivity and derivatives of hemoglobin non significantly changed due to calf vitality. In conclusion, there is a tight relationship between oxidant/antioxidant status of buffalo-calves and their preweaning vitality.
authors.affiliation: Department of Animal Reproduction and AI, National Research Center, Giza, Egypt.
authors.forename: W M
authors.initials: WM
authors.lastname: Ahmed
authors.forename: Ghada M
authors.initials: GM
authors.lastname: Nabil
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism*; D001703:Biophysics; D002020:Buffaloes / Q000254:growth & development / Q000502:physiology; D006454:Hemoglobins / Q000378:metabolism*; D016877:Oxidants / Q000378:metabolism*; D014886:Weaning
chemical_list: D000975:Antioxidants; D006454:Hemoglobins; D016877:Oxidants