EFFECTS OF LATE MICROBIAL PHYTASE SUPPLEMENTATION ON BROILER CHICKENS

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KARIMI TORSHIZI M.A.; RAHIMI S.; MIRSALIMI S.M.

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Journal: Journal of Veterinary Research Year:2002 | Volume:57 | Issue:3 Page(s): 75-79

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Title

EFFECTS OF LATE MICROBIAL PHYTASE SUPPLEMENTATION ON BROILER CHICKENS

Author(s)

KARIMI TORSHIZI M.A. | RAHIMI S. | MIRSALIMI S.M. | Issue Writer Certificate

Keywords

PHYTASE ENZYMEQ3

PHOSPHORUSQ3

PHYTATEQ3

BROILERQ2

Abstract

Objective: Determination the effects of phytase supplementation in BROILER diets.Design: Randomized complete blocks design.Animals: Two hundred eighty BROILER chickens.Procedure: The experimental diets were prepared based on NRC (1994) recommendations except for Prequirement. The diets, C,1P, 2P and 3P consist of 0,300,600 and 900 units of phytase activity per Kg of diet (FTU /Kg) respectively, without of inorganic PHOSPHORUS supplementation. The 10,20 and 3D diets have similar composition with control diet (C) except for 1,2 and 3 g PHOSPHORUS pre Kg of diet from dicalcuim phosphate (DCP). Factors related to PHOSPHORUS nutrition were measured during the experiment.Statistical analysis: Analysis of variance, Duncan’s multiple range test of means, Linear regression equations.Results: Addition of phytase had significantly effects on feed intake, body weight gain, tibia ash, tibia length, tibia PHOSPHORUS and PHOSPHORUS excretion (P<0.05). Phytase had no significant effects on feed conversion ratio, mortality and the cost of diet for production of I Kg of live body weight (P>0.05).Phosphorus equivalency were calculated as 700 FTU/Kg for body weight gain and 400 FTU/Kg for tibia ash equal to I g PHOSPHORUS from dicalcium phosphate.Implications: The PHYTASE ENZYME is able to hydrolyze the PHYTATE molecule and convert it to a nutritive form and destroy its negative effects. Depend on acquired results. We can conclude that supplementation of phytase in BROILER commercial diets is applicable and there is no need of inorganic PHOSPHORUS supplementation to diets without additional cost, and it can prevent the PHOSPHORUS loss in manure. The optimal level of phytase inclusion in BROILER diets is 600 FTU/Kg diet based on the results of this.

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APA: Copy

KARIMI TORSHIZI, M.A., RAHIMI, S., & MIRSALIMI, S.M.. (2002). EFFECTS OF LATE MICROBIAL PHYTASE SUPPLEMENTATION ON BROILER CHICKENS. JOURNAL OF VETERINARY RESEARCH, 57(3), 75-79. SID. https://sid.ir/paper/34940/en

Vancouver: Copy

KARIMI TORSHIZI M.A., RAHIMI S., MIRSALIMI S.M.. EFFECTS OF LATE MICROBIAL PHYTASE SUPPLEMENTATION ON BROILER CHICKENS. JOURNAL OF VETERINARY RESEARCH[Internet]. 2002;57(3):75-79. Available from: https://sid.ir/paper/34940/en

IEEE: Copy

M.A. KARIMI TORSHIZI, S. RAHIMI, and S.M. MIRSALIMI, “EFFECTS OF LATE MICROBIAL PHYTASE SUPPLEMENTATION ON BROILER CHICKENS,” JOURNAL OF VETERINARY RESEARCH, vol. 57, no. 3, pp. 75–79, 2002, [Online]. Available: https://sid.ir/paper/34940/en

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