In the present trial ROS and TAC values in does of NMER were higher than those in NZW at 30 d and this same trend observed in kits of NMER with advanced the age. Total Antioxidant capacity (TAC) values in rabbit kits were affected by breed and the interaction between breed and age. TAC values in rabbit kits were affected by breed and the interaction between breed and age. Oxidative status measurements in rabbit does inducted to the interaction between genotype and age had significantly effect in Total Antioxidant capacity (TAC) while Reactive Oxygen Substances (ROS) affected by both of breed and age. Rabbit kits were characterized by a higher HCA and lower SBA at 15 d compared to at 30 d in both of breeds. Percentage of SBA was significantly affected by age and the interaction between breed and age. In rabbit kits age had a strong significantly influenced in lysozyme and HCA levels.
On the contrary in the does of NZW, the SBA was decreased and HCA was increased at 30 d. SBA was increased while HCA was decreased at 30 d compared to 15 d in does of local breed (NMER). Interaction between genotype and age had significantly effect in Serum Bactericidal Activity (SBA) % and Hemolytic complement assay (HCA) CH50. Genotype and interaction between breed and age were source of significantly variation for lysozyme. Oxidative status (Reactive Oxygen Substances – ROS and total Antioxidant Capacity of plasma, TAC) were estimated in plasma.
Native immunity were included Serum Bactericidal Activity – SBA, Hemolytic complement Assay – HCA, lysozyme. A total of 20 blood samples were collected and analyzed at 15 and 30 d of post-partum from rabbits does and kits for each genotype. To investigate the effects of genotype and age on native immunity and oxidative status during suckling period used 40 rabbit does and 40 kits during suckling period from Native Middle-Egypt rabbits (NMER) and from New Zealand White (NZW).
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