Cytoplasmic Inheritance Of Production Traits Of Baluchi Sheep
2007
Salehi, A., Associated Professor of Animal Science Department, Faculty of Plant and Animal Production, Abourayhan Campus,Tehran University, Tehran, Iran. | Gharahvaisi, S., Graduated Student of Animal Science Department, Faculty of Plant and Animal Production, Abourayhan Campus, Tehran University, Tehran, Iran., | VaezTorshizi, R., Associated Professor of Animal Science Department, Tarbiat Moddares University Tehran, Iran.
Estimation of cytoplasmic effects of Baluchi sheep breed for production traits were studied. The data used in the present study were collected from flocks at the Abbasabad sheep breeding research station in north east of Iran included 13625 animals descended from 275 sire and 3863 dam. Traits were birth weight, waning weight, 6-month weight, 12-month weight and greasy fleece weight at 18 month. Cytoplasmic origin was found by tracing the individual progeny to the earliest ancestor in the pedigree. Genetic Parameters were estimated by Derivative Free Restricted Maximum Likelihood (DFREML) using univariate animal models. For all traits cytoplasmic effects were not important. The evidence is broadly consist with 4% for BW and 2% for GFW of variation in performance due to cytoplasmic effects. However effects in genetic evaluations are likely to be small. Maternal genetic effect contribution on greasy fleece weight was very low.
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