THE EFFECTS OF USING OF DIFFERENT NUTRIENT LEVELS RECOMMENDATIONS ON PERFORMANCE AND CARCASS TRAITS IN ROSS BROILER CHICKENS

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SAFAMEHR A.; KHAIRI E.; NOBAKHT A.

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Journal: ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ) Year:2011 | Volume:21 | Issue:1 Page(s): 1-14

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Title

THE EFFECTS OF USING OF DIFFERENT NUTRIENT LEVELS RECOMMENDATIONS ON PERFORMANCE AND CARCASS TRAITS IN ROSS BROILER CHICKENS

Author(s)

SAFAMEHR A. | KHAIRI E. | NOBAKHT A. | Issue Writer Certificate

Keywords

BROILERQ2

CARCASSQ2

PERFORMANCEQ2

NUTRIENTQ1

Abstract

This experiment was conducted to evaluate the effects of different NUTRIENTs levels on PERFORMANCE and CARCASS traits of BROILERs during 1 to 49 days of age. For this purpose 384 days old Ross -308 BROILERs in a completely randomized design was used with 6 treatments in four replicates (n=16). The experimental diets were consisted: 1- NRC (1994) recommendation; 2- %110 of NRC recommendation; 3- Ross catalog recommendation; 4- %90 of Ross catalog recommendation; 5- NUTRIENT level mean of NRC and Ross-308 catalog with recommended periods by NRC; 6- NUTRIENT levels mean of NRC and Ross-308 catalog with recommended periods by Ross Catalog. All of the rations were isocaloric, with different levels of NUTRIENTs. The results of this study indicated that, in all of the periods, the body weight gain and feed intake in BROILERs fed by NRC recommendation significantly higher than other treatments (P<0.05). Decreasing of dietary NUTRIENT levels to %90 of Ross catalog recommendation significantly decreased feed intake as compared to other treatments in all periods. The BROILERs were fed 110% of NRC NUTRIENT levels had the lowest feed conversion ratio than those were fed other rations (P<0.05). Percentage of CARCASS and breast in BROILERs were fed by NRC NUTRIENTs levels were significantly higher than those were fed by other NUTRIENTs levels (P<0.05). Using of NRC NUTRIENTs levels significantly decreased the production costs of each kilogram of live weight in comparison to other NUTRIENTs levels.These data suggest that formulation of diets based on NRC recommendation could be useful in improvement of PERFORMANCE and decreasing of production costs.

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APA: Copy

SAFAMEHR, A., KHAIRI, E., & NOBAKHT, A.. (2011). THE EFFECTS OF USING OF DIFFERENT NUTRIENT LEVELS RECOMMENDATIONS ON PERFORMANCE AND CARCASS TRAITS IN ROSS BROILER CHICKENS. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), 21(1), 1-14. SID. https://sid.ir/paper/147484/en

Vancouver: Copy

SAFAMEHR A., KHAIRI E., NOBAKHT A.. THE EFFECTS OF USING OF DIFFERENT NUTRIENT LEVELS RECOMMENDATIONS ON PERFORMANCE AND CARCASS TRAITS IN ROSS BROILER CHICKENS. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ)[Internet]. 2011;21(1):1-14. Available from: https://sid.ir/paper/147484/en

IEEE: Copy

A. SAFAMEHR, E. KHAIRI, and A. NOBAKHT, “THE EFFECTS OF USING OF DIFFERENT NUTRIENT LEVELS RECOMMENDATIONS ON PERFORMANCE AND CARCASS TRAITS IN ROSS BROILER CHICKENS,” ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), vol. 21, no. 1, pp. 1–14, 2011, [Online]. Available: https://sid.ir/paper/147484/en

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