الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 143 |  |  |
| | | from | 143 | | |
Abstract
The present study was carried out at the breeding rabbit unit that belonging to the Poultry Research Center of the Poultry Production Department, Faculty of Agriculture (ElShatby), Alexandria University, during the period from July to August, 2017. This work aimed to investigate the effectiveness of supplementing varying levels of copper substances from different sources (copper sulphate, copper-methionine chelate and copperglycine chelate) on productive performance and some blood parameters in growing rabbits under Egyptian summer conditions. A total number of 140 weaned V-line rabbits (unsexed, aged four weeks) were used in this study. Rabbits were randomly distributed into seven groups of 20 rabbits each. Each group was subdivided into 5 replicates (4 rabbits each). Rabbits were nearly similar in live body weight which ranged from 547.4 to 553.5 g. The experiment lasted five weeks after weaning at 63 days of age. Rabbits were randomly assigned to experimental treatments, as follows: (T1) fed basal diet without any supplementation (control), (T2) basal diet + copper sulphate 100 ppm (100 mg/Kg), (T3) basal diet + copper sulphate 200 ppm (200 mg/Kg), (T4) basal diet + copper methionine 100 ppm (100 mg/Kg), (T5) basal diet + copper methionine 200 ppm (200 mg/Kg), (T6) basal diet + copper glycine 100 ppm (100mg/Kg), and (T7) basal diet + copper glycine 200 ppm (200 mg/Kg). The studied traits were the productive performance (body weight, body weight gain, feed consumption, feed conversion ratio and livability percentages), blood constituents (hematological and biochemical parameters, and oxidative status indicators) and slaughter traits.