HERITABILITIES AND GENETIC CORRELATIONS FOR EGG WEIGHT TRAITS IN IRANIAN FOWL BY MULTI TRAIT AND RANDOM REGRESSION MODELS

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POURTAHMASEBIAN AHRABI MAHDI

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ADVANCED BIOLOGICAL AND BIOMEDICAL RESEARCH (IJABBR) Year:2015 | Volume:3 | Issue:2 Page(s): 108-111

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Title

HERITABILITIES AND GENETIC CORRELATIONS FOR EGG WEIGHT TRAITS IN IRANIAN FOWL BY MULTI TRAIT AND RANDOM REGRESSION MODELS

Author(s)

POURTAHMASEBIAN AHRABI MAHDI | Issue Writer Certificate

Keywords

EGG WEIGHT

GENETIC PARAMETERS

ISFAHAN FLOW

MULTITRAIT MODEL

RANDOM REGRESSION

MODEL

Abstract

Objective: The main objective of this research was estimation of GENETIC PARAMETERS for five consecutive measurements of EGG WEIGHTs in Isfahan fowl using multi trait MODEL and RANDOM REGRESSION MODELs.Methods: The statistical MODELs included generation hatch as a fixed effect, weeks of age as a covariate and additive genetic and individual permanent environmental effects as random effects. The date set included records of EGG WEIGHT measured from 21 weeks to 84 weeks of age that collected during 15 generations from 1986 to 2011. For acquiring of best accuracy of variance components and determining appropriate MODEL, used heterogeneous residual variances with 5 classes and considering different orders of Legendre polynomial and accordingly eight different MODELs were compared. Finally, the MODEL with fourth order for additive genetic effect and third order for individual permanent environmental effect was selected as best MODEL.Results: Results showed high genetic correlations of the 32 weeks of age with all other ages also its heritability indicated that it could be the optimum period for breeding.

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APA: Copy

POURTAHMASEBIAN AHRABI, MAHDI. (2015). HERITABILITIES AND GENETIC CORRELATIONS FOR EGG WEIGHT TRAITS IN IRANIAN FOWL BY MULTI TRAIT AND RANDOM REGRESSION MODELS. INTERNATIONAL JOURNAL OF ADVANCED BIOLOGICAL AND BIOMEDICAL RESEARCH (IJABBR), 3(2), 108-111. SID. https://sid.ir/paper/339223/en

Vancouver: Copy

POURTAHMASEBIAN AHRABI MAHDI. HERITABILITIES AND GENETIC CORRELATIONS FOR EGG WEIGHT TRAITS IN IRANIAN FOWL BY MULTI TRAIT AND RANDOM REGRESSION MODELS. INTERNATIONAL JOURNAL OF ADVANCED BIOLOGICAL AND BIOMEDICAL RESEARCH (IJABBR)[Internet]. 2015;3(2):108-111. Available from: https://sid.ir/paper/339223/en

IEEE: Copy

MAHDI POURTAHMASEBIAN AHRABI, “HERITABILITIES AND GENETIC CORRELATIONS FOR EGG WEIGHT TRAITS IN IRANIAN FOWL BY MULTI TRAIT AND RANDOM REGRESSION MODELS,” INTERNATIONAL JOURNAL OF ADVANCED BIOLOGICAL AND BIOMEDICAL RESEARCH (IJABBR), vol. 3, no. 2, pp. 108–111, 2015, [Online]. Available: https://sid.ir/paper/339223/en

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