| Genetic analysis for growth traits in Iranian Adani goats for autosomal and sex-linked choromosoms |
| Paper ID : 1054-WDG2017 |
| Authors |
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mohammad sadegh yazdanshenas *1, sirous eidivandi2, Reza Sadoughi2 1Bushehr - vali asr street - agricultural jahad organization of Bushesh province - animal dept 2department of animal science, Islamic Azad university of Behbahan |
| Abstract |
| Genetic parameters for growth traits of Adani were estimated by univariate model with and without sex linked effect. Akaike information criteria, Bayesian information criteria and Logarithm ration test were used for selection of appropriate model. In Autosomal model, direct heritability estimate for growth traits varied from 0.20 to 0.36 and highest heritability for 12 months weight. The maternal heritability estimate varied from 0.0001 to 0.12. Also, maternal permanent environment proportion varied from 0.05 to 0.12. In the sexed linked model, maternal heritability and maternal permanent environment proportion did not differ significantly from the autosomal model. Direct autosome heritability for different traits varied from 0.0001 to 0.06. Autosomal direct heritability for different traits varied from 0.12 to 0.31 and sex linked direct heritability varied from 0.0001 to 0.06 and highest for 12 months weight. The maternal heritability is lower than direct heritability for all traits. Genetic correlation between adjacent records were high and decreased as the interval between tests increased. Phenotypic correlations followed a similar pattern but in most cases were lower than the corresponding genetic correlation. AIC, BIC and LRT showed that there is no significant difference between autosomal and sex linked models. Pearson correlation and Spearman rank correlation between models high and significant. Results showed that there is no significant difference between animal ranking in two models and sex linked contribution can be ignored. |
| Keywords |
| Growth traits, genetic parameters, sex linked traits, Adani goat |
| Status: Abstract Accepted (Poster Presentation) |