Results 301 to 310 of about 20,705 (343)
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Efficient design of crossbreeding experiments
Theoretical and Applied Genetics, 1989The efficiencies of different experimental configurations for estimating additive (A) and heterotic (H) effects in purebred and crossbred populations derived from two parent breeds are examined. Allocation of resources over six groups is considered: the two parental breeds, the F1, the F2 and the backcrosses to the two parental breeds.
E P, Cunningham, J, Connolly
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The basis of crossbreeding in pigs; A review
Livestock Production Science, 1976Abstract A survey of the different parameters involved in crossbreeding is given following the analysis of Dickerson (1969). The genetic gain resulting from crossbreeding has a double origin: complementarity and heterosis. The practical importance of these two advantages is evaluated in swine.
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Crossbreeding or not crossbreeding? That is not the question
2021Krätli, Saverio, Provenza, Fred
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Crossbreeding and Meat Quality in Pigs
1987A 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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"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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A Study of Crossbreeding Sheep
Journal of Animal Science, 1951K P, MILLER, D L, DAILEY
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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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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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