Estimation of heterosis and heterosis retention in the development of a synthetic breed of goat /
additive effects model was also used as a basis for
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | additive effects model was also used as a basis for additive x dominance, or dominance x dominance). An age. Data resulted from the development of a composite and adjusted (for age) weights at two and four months of and heterosis estimated. Heterosis estimates were and(or) due to inadequate estimation of the direct and be advantageous. better than the dominance models. Model comparisons with breed of goat in Kenya (KDPG) which is composed of 1/4 bucks to be used to grade up the indigenous breeds would dominance and epistasis in explaining variation in dominance model and epistasis models (also included breed dominance model does not always adequately account for East African, 1/4 Gak 1/4 Toggenburg, and 1/4 Anglo- effects were confounded and so this model was excluded effects, but the majority of the maternal nonadditive effects. All models included breed additive effects and excluded the linkage effects and made an assumption fixed effects for type of birth (except for the analysis from further analyses. Specific epistasis models generally negative possibly due to unaccounted for goat crossbreeding data for type of birth, birth weight, heterosis. With this in mind, genetic models were fit to interactions among type of birth and the genetic effects locus configurations and direct and maternal linkage maternal additive effects for the Nubian. Results Model comparisons were made to assess the importance of models included direct and maternal effects for six two- nonadditive effects were important. Performance of Nubian. Genetic models included a breed specific of type of birth), dam age, gender, birth year, and performance. The specific epistasis models tended to be regarding the nature of epistasis (additive x additive, Review of crossbreeding research indicates that the season of birth. specific dominance effects). The general epistasis suggest that use of Toggenburg, Nubian, and(or) KDPG testing the significance of all the nonadditive genetic the additive effects models also suggested that various crosses was also predicted from the model results |
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| Item Description: | "Major subject: Animal Breeding". Vita. |
| Physical Description: | x, 139 leaves ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |