التفاصيل البيبلوغرافية
| العنوان: |
EFFECT OF PHYTASE SUPPLEMENTATION ON EGG PRODUCTION, SHAPE INDEX AND BONE MINERALIZATION IN SWARNADHARA BREEDERS FED DIET WITH DIFFERENT LEVELS OF NON-PHYTATE PHOSPHORUS. |
| المؤلفون: |
Sreedhara, J. N., Jayanaik, Ram, Jagjiwan, Malathi, V., Gopinath, C. R., Prabhu, T. M. |
| المصدر: |
Journal of Experimental Zoology India; Jan2023, Vol. 26 Issue 1, p523-526, 4p |
| مستخلص: |
A biological trial was conducted to study the effect of phytase supplementation on egg production, shape index, and bone mineralization traits in Swarnadhara breeders reared from 29 to 48 weeks at the Department of Poultry Science, Veterinary College, Hebbal, Bengaluru. The trial had a total of 450 birds with 5 treatments and three replicates per treatment, each having 30 birds (90 birds per treatment). The control diet (T1) was formulated according to ICAR (2013) nutrient requirements and the groups T2 to T5 were formulated with changed non-phytate phosphorus levels so as to contain 0.12% in T2, 0.18% in T3, 0.12% NPP with 500 IU/kg phytase in T4 and 0.18% NPP with 500 IU/kg phytase in T5. Hen-housed egg production (phases I, II and V), shape index, bone weight, bone ash, and bone calcium were not significantly (P>0.05) affected by phytase supplementation. However, the bone phosphorus content was significantly (P<0.05) improved in phytase supplemented group compared to the control. An NPP level of 0.12% with phytase is optimum for Swarnadhara breeders to maintain egg production, egg quality, and bone mineralization. There was no additional advantage, however, of increasing the NPP concentration above 0.12% with phytase or adding phytase to the diet containing 0.18 % NPP in Swarnadhara breeders. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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