Mariey,, Y., Samak, H., EL-Wardany, A. (2004). PRODUCTIVE AND PHYSIOLOGICAL RESPONSES TO VITAMIN 03 AND C SUPPLEMENTATION IN . BANoARA HENS. Journal of Animal and Poultry Production, 29(12), 6829-6842. doi: 10.21608/jappmu.2004.239447
Y. A. Mariey,; H. R. Samak; A. M. EL-Wardany. "PRODUCTIVE AND PHYSIOLOGICAL RESPONSES TO VITAMIN 03 AND C SUPPLEMENTATION IN . BANoARA HENS". Journal of Animal and Poultry Production, 29, 12, 2004, 6829-6842. doi: 10.21608/jappmu.2004.239447
Mariey,, Y., Samak, H., EL-Wardany, A. (2004). 'PRODUCTIVE AND PHYSIOLOGICAL RESPONSES TO VITAMIN 03 AND C SUPPLEMENTATION IN . BANoARA HENS', Journal of Animal and Poultry Production, 29(12), pp. 6829-6842. doi: 10.21608/jappmu.2004.239447
Mariey,, Y., Samak, H., EL-Wardany, A. PRODUCTIVE AND PHYSIOLOGICAL RESPONSES TO VITAMIN 03 AND C SUPPLEMENTATION IN . BANoARA HENS. Journal of Animal and Poultry Production, 2004; 29(12): 6829-6842. doi: 10.21608/jappmu.2004.239447
PRODUCTIVE AND PHYSIOLOGICAL RESPONSES TO VITAMIN 03 AND C SUPPLEMENTATION IN . BANoARA HENS
Animal Production Res. Institute, Agric. Res. Center, Dokki, Giza, Egypt.
Abstract
An experiment was conducted to determine the effect of dietary vitamin 03 (0, 300 or 600 IU) and vitamin C supplementation (0, 250 or 500 mg / kg of ration) on some physiological responses and productive performance of Bandara strain. A total number of 270 hens of Bandara local strain aged 22 weeks were selected and divided randomly into 3 experimental groups (each of 90 hens) according to vitamin 03 supplementation (0, 300 or 600 lUI kg of ration) and each group was divided into 3 subgroups (each of 30 hens) according to vitamin C supplementation (0, 250 and 500 mg/kg of ration). Results obtained could be summarized as follows: Pullets fed combination of 300 IU vitamin 03 and 250 mg of vitamin C /Kg ration increased significantly egg Shell weight percentage and thickness (13.51 % andO.34 mm, respectively) than those of control (11.85% and 0.31 mm, respectively).
Pullets fed 600 IU of vitamin 03 and 500 mg vitamin C /Kg ration improved significantly feed conversion (3.07 g feed/g egg), rate of egg production (67.8%/hen/day), egg mass (33.03 gm/hen/day), fertility percentage (94.79%), Calcium balance (68.53%), total calcium absorption, absorption/cm length or per gram dry matter / hour through the intestinal parts (22.89 mg/hr, 0.467 mg/cm and 8.33 mg/gm, respectively) and increased significantly plasma calcium and inorganic phosphorus (21.75 and 5.80 mg/dl, respectively) compared with those of other treatments or control (18.74 and 5.65 mg/dl, respectively). Pullets fed 300 IU vitamin03 and 500mg vitamin C had significantly the highest percentage of hatchability (94.59%) compared with those of control (88.90%). Pullet's age had significant effect on feed intake, feed conversion, egg production, egg weight, mass, proportional shell weight, shell thickness, plasma calcium and inorganic phosphorus. Supplemented diet with Vitamins 03 and C at a level of (600 IU and 500 mg/kg, respectively) seemed to be adequate to achieve the favorable results and may be recommended for the economic point view.
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