Genetic evaluation for three-way crossbreeding
نویسندگان
چکیده
منابع مشابه
Genetic Consequences of Crossbreeding ''2
C ROSSBREEDING involves the mating of two or more breeds. In most species of domestic livestock, crossbreeding has some desirable consequences, especially in the production of market stock. These consequences are the production of heterosis, the opportunity to incorporate desirable genetic material quickly, and the chance to combine several desirable traits into a market animal. The consequence...
متن کاملThe Genetic Principles of Crossbreeding
ferent breed makeups. It is widely used in commercial beef production because of the benefits it has to offer cow-calf producers. Improvements in efficiency can be dramatic if appropriate breed combinations are used. Crossbreeding does not eliminate the need for outstanding purebred cattle since efficient systems require well characterized, superior purebred cattle. Crossbreeding in beef cattle...
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INTRODUCTION Inbreeding coefficients for 9.3 million registered Holsteins were computed by constructing a small relationship matrix for each animal and its arxestors instead of one large matrix for the whole population. Recent cows averaged 2.0% inbreeding if each pedigree path was extended to the most recent ancestor born before 1960. Inbreeding was underestimated because some pedigrees includ...
متن کاملGenetic evaluation for semen characteristics in a crossbreeding project involving Saudi and Spanish V-line rabbits.
Two parallel schemes of crosses were practised involving the Spanish maternal line called V-line (V) and Saudi Gabali (S) rabbits. The first scheme began by crossing Saudi Gabali bucks with V-line does to get the F1 cross (½S½V), then does of this F1 were backcrossed with bucks of V-line to get ¾V¼S, then the progenies of the backcross were inter se mated to get (¾V¼S)2, followed by two more ge...
متن کاملEvaluation of Crossbreeding Effects for Wool Traits in Sheep
Crossbreeding effects for wool quality traits viz. greasy fleece weight (kg), staple length (cm), average fibre diameter (μ) and medulation percentage were estimated using the Dickerson’s and Kinghorn’s models. The data analyzed involved 15 genetic groups including Nali purebred, F1’s of two and three breeds, F2’s and reciprocal crossbred obtained from the crossing of Nali (N), Merino (M) and C...
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ژورنال
عنوان ژورنال: Genetics Selection Evolution
سال: 2015
ISSN: 1297-9686
DOI: 10.1186/s12711-015-0177-6