IMPACT OF INTERACTION BETWEEN GENOTYPE AND NUTRITION ON SOME PRODUCTIVE AND IMMUNOLOGICAL PARAMETERS IN LOCAL CHICKEN STRAINS

Abstract

The main objective of this study was to investigate the effect of the genetic differences in productive performance, carcass characteristics, physiological response, antioxidant activity, immunological response and histological examination by use the natural growth promoters in diets offered to local chicken strains (Golden Montaza (GM) and Bandara (B)). A total of 300 birds (150 birds of each strain) were used from 16 to 40 weeks of age. Birds were randomly distributed into six treatments. Each treatment had 20 (female) and 5 (male) birds (25X 6X 2) that were individually caged. The first treatment of each strain served as a control group and fed the formulated basal diet without any tested feed additives. The second treatment fed the basal diet with BioPlus® 2B, (400gm/ton) a commercial probiotic preparation (pro. (Bio)). The third treatment birds were fed the same basal diet with the addition of TechnoMos® (500gm/ton) a prebiotic type (pre. (Tech).The fourth treatment fed the basal diet with Diamond V® (2.5kg/ton) a commercial prebiotic produced (pre. (Dia). The fifth treatment fed the basal diet with FORMI® NDF (2kg/ton) (organic acid (FORMI)). The sixth treatment fed the basal diet with combination of (BioPlus® 2B, (400gm/ton) + TechnoMos® (500gm/ton) + FORMI® NDF (1kg/ton)) combination (BTF).