Multiple-trait structured antedependence model to study the relationship between litter size and birth weight in pigs and rabbits

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• 作者：Ingrid David ; Hervé Garreau ; Elodie Balmisse ; Yvon Billon&#8230
• 刊名：Genetics Selection Evolution
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：49
• 期：1
• 全文大小：1657KB
• 刊物主题：Animal Genetics and Genomics; Evolutionary Biology; Agriculture;
• 出版者：BioMed Central
• ISSN：1297-9686
• 卷排序：49

文摘

BackgroundSome genetic studies need to take into account correlations between traits that are repeatedly measured over time. Multiple-trait random regression models are commonly used to analyze repeated traits but suffer from several major drawbacks. In the present study, we developed a multiple-trait extension of the structured antedependence model (SAD) to overcome this issue and validated its usefulness by modeling the association between litter size (LS) and average birth weight (ABW) over parities in pigs and rabbits.