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Crossbreeding and Meat Quality in Pigs [PDF]
, 1987 A review is presented on heterosis for meat quality. The classical view, i.e. no significant heterosis, is to be revised to some extent when considering specific meat quality traits in specific crosses. Evidence is presented for two main deviations from additive inheritance of breed differences in crossing.
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The Utilization of Mutants in Crossbreeding
1983The experiences, obtained in mutation breeding, show that it is possible in principle to develop a commercial variety directly from an induced mutant. According to the results available in this field, it is, however, the opinion of many geneticists, that the utilization of useful mutants in crossbreeding programs is more prospective.
Werner Gottschalk, Gisela Wolff
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Journal of Animal Breeding and Genetics, 1995
SummaryStarting with the consideration of a two‐locus system of a diploid organism, a general model for crossbreeding parameters, including additive, dominance, additive × additive, additive × dominance and dominance × dominance effects, is derived. A general procedure for the calculation of the coefficients of the crossbreeding parameters is described.
J. Hyánek +4 more
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SummaryStarting with the consideration of a two‐locus system of a diploid organism, a general model for crossbreeding parameters, including additive, dominance, additive × additive, additive × dominance and dominance × dominance effects, is derived. A general procedure for the calculation of the coefficients of the crossbreeding parameters is described.
J. Hyánek +4 more
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"Crossbreeding" Geographical Quantities
Geographical Review, 1955A s INCONCEIVABLE as a "boneless vertebrate" is a "nonquantitative geography." Estimates and measurements of terrestrial magnitudes-distances, directions, dimensions-have always constituted the framework of geographical knowledge. There are, however, degrees and standards of "quantitivity." Those attained by Eratosthenes and Ptolemy were comparatively ...
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Journal of Zhejiang University-SCIENCE A, 2002
The reproduction characteristics of 343 sows in six different breeding groups were analyzed to estimate the crossbreeding parameters. The results indicated that the ovulation rate and the weights of uterus and ovary are mainly determined by the additive genetic effects while the nonadditive genetic effects play an important role in embryonal traits and
Dong Niu, Hai-yan Chen, Hui Ruan, Yan Fu
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The reproduction characteristics of 343 sows in six different breeding groups were analyzed to estimate the crossbreeding parameters. The results indicated that the ovulation rate and the weights of uterus and ovary are mainly determined by the additive genetic effects while the nonadditive genetic effects play an important role in embryonal traits and
Dong Niu, Hai-yan Chen, Hui Ruan, Yan Fu
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1978
The diallel method used by Anisman (1976a) involves crossing each strain with every other reciprocally so that, as in this case, the use of three parental strains generates a 3 × 3 diallel table of family means in which the reciprocal crosses, by which prenatal maternal effects can be detected (see Section 9.1), are distributed symmetrically around the
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The diallel method used by Anisman (1976a) involves crossing each strain with every other reciprocally so that, as in this case, the use of three parental strains generates a 3 × 3 diallel table of family means in which the reciprocal crosses, by which prenatal maternal effects can be detected (see Section 9.1), are distributed symmetrically around the
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A Study of Crossbreeding Sheep
Journal of Animal Science, 1951Miller Kp, Dailey Dl
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Crossbreeding or not crossbreeding? That is not the question
2021Krätli, Saverio, Provenza, Fred
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