Effect of Pure Enzyme Mixtures Supplementation on Performance of Laying Hens.
2011
Ramesh, J. | Chandrasekaran, D.
A study was undertaken to evaluate the effect of supplementation of different pure enzyme mixtures on production performance of laying hens. Three types of pure enzyme mixtures (A, B and C) were evaluated biologically in laying hens (2336 weeks) fed standard layer ration (SR) without (control) and with enzyme mixture A (SR-A), B (SR-B) and C (SR-C) and less dense ration (LR) without (control) and with enzyme mixture A (LR-A), B (LR-B) and C (LR-C). Addition of enzyme was able to achieve extra egg production in LR groups, which was equal to that of SR control. Numerically, higher hen housed egg production was observed in enzyme added SR (85.85, 85.70 and 85.85; in SR-A, SR-B and SR-C respectively) and LR groups (83.35, 83.30 and 82.75; in LR-A, LR-B and LR-C, respectively) over their respective non enzyme group (SR control: 85.10; and LR control: 78.45;). The effect was more pronounced in LR groups. Addition of enzymes resulted in better feed efficiency in both SR and LR groups over their respective control. However, enzyme supplementation did not influence the egg weight, yolk index, yolk color score, albumen index, shape index and egg shell thickness in both SR and LR groups. The feed cost to produce an egg was reduced by 2 paise and 3 paise, respectively in SR and LR enzyme groups compared to control.
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Эту запись предоставил Indian Council of Agricultural Research