STUDY OF EFFECT OF PHYTIC ACID AND PHYTASE ON FEED INTAKE, GROWTH, DIGESTIBILITY AND TRYPSIN ACTIVITY IN RAINBOW TROUT (ONCORHYNCHUS MYKISS)

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SAFARI O.

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Journal Paper

Paper Information

Journal: Year:2008 | Volume:21 | Issue:2 (79 IN ANIMAL AND FISHERIRS SCIENCES) Page(s): 27-35

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Title

STUDY OF EFFECT OF PHYTIC ACID AND PHYTASE ON FEED INTAKE, GROWTH, DIGESTIBILITY AND TRYPSIN ACTIVITY IN RAINBOW TROUT (ONCORHYNCHUS MYKISS)

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SAFARI O. | Issue Writer Certificate

Keywords

RAINBOW TROUTQ3

FEED INTAKEQ3

PHYTASEQ3

PHYTIC ACIDQ3

PROTEIN DIGESTIBILITYQ3

TRYPSIN ACTIVITYQ3

Abstract

In the majority of experiments, the effects of PHYTIC ACID (with or without PHYTASE) are not separated from the effects of adding plant meals containing PHYTIC ACID. A 12-week experiment was conducted with RAINBOW TROUT (with average weight: 28.9 g) to determine the separate and combined effects of PHYTIC ACID and PHYTASE on FEED INTAKE, TRYPSIN ACTIVITY, digestibility and growth. Diets were prepared without PHYTIC ACID and PHYTASE, with 2000 U PHYTASE kg-1 diet, with 10 g sodium phytate kg-1 diet, and with 10 g sodium phytate and 2000 U PHYTASE kg-1 diet. The basal diet contained sufficient phosphorus and other minerals to meet RAINBOW TROUT requirements. Two-way anova was used for data analyse and Duncan multiple range test was used for mean comparison by SAS software at level of 0.05. The addition of PHYTIC ACID had no significant effect (p>0.05) on FEED INTAKE or weight gain, it significantly (p<0.05) reduced PROTEIN DIGESTIBILITY although there was no reduction in TRYPSIN ACTIVITY. PHYTASE inclusion neutralized the effect of PHYTIC ACID on PROTEIN DIGESTIBILITY. PHYTASE had no effect on FEED INTAKE but significantly (p<0.05) enhanced growth whether included with or without PHYTIC ACID. Feed efficiency ratio was significantly (p<0.05) improved for fish fed the diet containing both PHYTASE and PHYTIC ACID but not separately. The significance of this experiment was to separate the direct effects of PHYTASE and the direct effects of PHYTIC ACID, added in a pure form, from effects due to other components in ingredients containing PHYTIC ACID.

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مطالعه مقدماتی اثر بیهوشی پودر گل میخک بر روی ماهی قزل آلای رنگین کمان (1)

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APA: Copy

SAFARI, O.. (2008). STUDY OF EFFECT OF PHYTIC ACID AND PHYTASE ON FEED INTAKE, GROWTH, DIGESTIBILITY AND TRYPSIN ACTIVITY IN RAINBOW TROUT (ONCORHYNCHUS MYKISS). PAJOUHESH-VA-SAZANDEGI, 21(2 (79 IN ANIMAL AND FISHERIRS SCIENCES)), 27-35. SID. https://sid.ir/paper/20078/en

Vancouver: Copy

SAFARI O.. STUDY OF EFFECT OF PHYTIC ACID AND PHYTASE ON FEED INTAKE, GROWTH, DIGESTIBILITY AND TRYPSIN ACTIVITY IN RAINBOW TROUT (ONCORHYNCHUS MYKISS). PAJOUHESH-VA-SAZANDEGI[Internet]. 2008;21(2 (79 IN ANIMAL AND FISHERIRS SCIENCES)):27-35. Available from: https://sid.ir/paper/20078/en

IEEE: Copy

O. SAFARI, “STUDY OF EFFECT OF PHYTIC ACID AND PHYTASE ON FEED INTAKE, GROWTH, DIGESTIBILITY AND TRYPSIN ACTIVITY IN RAINBOW TROUT (ONCORHYNCHUS MYKISS),” PAJOUHESH-VA-SAZANDEGI, vol. 21, no. 2 (79 IN ANIMAL AND FISHERIRS SCIENCES), pp. 27–35, 2008, [Online]. Available: https://sid.ir/paper/20078/en

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