Results 341 to 350 of about 46,654 (375)
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World's Poultry Science Journal, 1977
A review of the literature pertaining to heterosis and crossbreeding techniques in poultry. An attempt has been made to summarize in a table the findings for important traits, viz.
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A review of the literature pertaining to heterosis and crossbreeding techniques in poultry. An attempt has been made to summarize in a table the findings for important traits, viz.
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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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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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Crossbreeding Beef Cattle [PDF]
, 2014 A well-designed, manageable crossbreeding system is an important aspect in making genetic progress in the various economically important traits that drive profitability in today's beef industry.
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Crossbreeding or not crossbreeding? That is not the question
2021Krätli, Saverio, Provenza, Fred
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Efective Crossbreeding Systems Utilizing Zebu Cattle
Journal of Animal Science, 1980The basic objectives and procedures for successful crossbreeding of beef cattle were considered, with special reference to the levels of realized hybrid vigor that might be anticipated for different crossbreeding programs involving the American Brahman (Z1) and European (Ej) breeds. Intralocus heterozygosis levels with respect to breed origin of genes (
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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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