Estimation of Genetic and Phenotypic Variance Components for Body Weight Traits of Moghani Sheep using Gibbs Sampling Approach

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

behmaram reza; Rashedi Dehsahraei Azar

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Research On Animal Production Year:2019 | Volume:10 | Issue:24 Page(s): 127-136

Download Full-Text

Persian Verion

View:

351

Download:

Cites:

Information Journal Paper

Title

Estimation of Genetic and Phenotypic Variance Components for Body Weight Traits of Moghani Sheep using Gibbs Sampling Approach

Author(s)

behmaram reza | Rashedi Dehsahraei Azar | Issue Writer Certificate

Keywords

Bayesian MethodQ1

Growth TraitsQ1

Genetic ParametersQ1

Moghani SheepQ1

Abstract

In this study for prediction of the (Co)-variance components and genetic and phenotypic parameters for Growth Traits of Moghani Sheep, data from birth weight (7368 records), weaning weight (5892 records), 6-month weight (5110 records), 9-month weight (2912 records) and yearling weight (2893 records) were used. Data was collected during 1995-2017 from Moghani Sheep breeding station in Jafarabad of Moghan. (Co) variance components and Genetic Parameters were estimated by Bayesian statistical method based on Gibbs sampling technique, because of high accuracy of bayasian method. Environmental factors such as birth year, birth season, Sex of lamb, birth type and mother's age were significant on all traits (P<0. 01 and as fixed effects in the mode. Age of lamb during weaning was used as covariate in the model. Based on lowest AIC for birth weight, weaning weight, 6-month weight, 9-month weight and yearling weight the direct heritability was found to be 0. 35± 0. 003, 0. 20± 0. 004, 0. 23± 0. 002, 0. 36± 0. 004 and 0. 24± 0. 003 for the traits, respectively. Maternal heritability of birth weight and weaning weight were 0. 26± 0. 002 and 0. 11 ± 0. 002, respectively. The results revealed by increasing lamb's age and reducing lamb's dependence on mother, the contribution of maternal effects to direct genetic effects decreases. Therefore, the importance of this effect was reduced by increasing age due to decreased dependenc if lamb to mother. Low to moderate heritability of the traits indicated that selection for these traits will result in a low to moderate genetic improvement.

Cites

No record.

References

No record.

Cite

APA: Copy

behmaram, reza, & Rashedi Dehsahraei, Azar. (2019). Estimation of Genetic and Phenotypic Variance Components for Body Weight Traits of Moghani Sheep using Gibbs Sampling Approach. RESEARCH ON ANIMAL PRODUCTION, 10(24 ), 127-136. SID. https://sid.ir/paper/401648/en

Vancouver: Copy

behmaram reza, Rashedi Dehsahraei Azar. Estimation of Genetic and Phenotypic Variance Components for Body Weight Traits of Moghani Sheep using Gibbs Sampling Approach. RESEARCH ON ANIMAL PRODUCTION[Internet]. 2019;10(24 ):127-136. Available from: https://sid.ir/paper/401648/en

IEEE: Copy

reza behmaram, and Azar Rashedi Dehsahraei, “Estimation of Genetic and Phenotypic Variance Components for Body Weight Traits of Moghani Sheep using Gibbs Sampling Approach,” RESEARCH ON ANIMAL PRODUCTION, vol. 10, no. 24 , pp. 127–136, 2019, [Online]. Available: https://sid.ir/paper/401648/en

Related Journal Papers