الفهرس 
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Abstract
This work was conducted at therabbit farm, Faculty of Veterinary Medicine, Zagazig University at 26st of December 2019 till 14th of February 2020. A total of 128 unsexed 4-w old NZW rabbits (553.7±8.3 g) were used in this study and they were housed in cages (50×50×50 cm). In experiment I, 48 rabbits were randomly allocated into three groups, of three stocking density 8, 16 and 24 per m2 to investigate the effect of stocking density on growth performance, carcass traits, blood parameters, blood biochemical, and economic efficiency of New Zealand White (NZW) rabbits. Whilein experiment II, 80 rabbits were randomly allocated into four groups, of two stocking density 8, 24 per m2. G1, low Stocking density of 2 rabbits/cage and rabbits fed basal diet without any supplementation (LSD). G2,higher Stocking density of 6 rabbit per cage and rabbits fed basal diet without any supplementation (HSD). G3,higher Stocking density of 6 rabbit per cage and rabbits fed basal diet supplemented with bee pollen at 250 mg/kg BW given orally (HSD-BP250). G4, higher Stocking density of 6 rabbits per cage and rabbits fed basal diet supplemented with bee pollen at 500 mg/kg BW given orally (HSD-BP500) to testthe hypothesis that supplementation with bee pollen, as a beneficial feed additive, could alleviate the detrimental effects of overcrowding on the productivity, blood chemistry, and economic efficiency in growing rabbits.All rabbitshoused in cages (50×50×50 cm) and had the same program of management, housing, feeding and drinking.