EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Expected performance under repeated hybrid male cross and crisscross mating systems






Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 61(2): 177-182

Expected performance under repeated hybrid male cross and crisscross mating systems

The expected performance of two crossbreeding systems, the crisscross (CC) and repeated hybrid male cross (RHMC) was compared. These systems are of particular interest for less prolific species such as dairy cattle. Under the CC, the expected performance fluctuated over generations while under the RHMC, performance was constant after the F1 generation. After a few generations of crossing, the ratio of the average performance of the two alternative CCs to the performance under RHMC approached (6+4H)/ (6+3 H) where H was a coefficient indicating the degree of heterosis. When the parent breed difference (D) was small (10%) and heterosis (H) substantial (30%), the CC involving the first back cross to the superior sire breed was expected to exceed the RHMC by 6% after a few generations of crossing. The expected performance under CC and RHMC for various values of D and H was calculated.

Accession: 005419475

PMID: 24270341

DOI: 10.1007/BF00273887

Download PDF Full Text: Expected performance under repeated hybrid male cross and crisscross mating systems



Related references

Comparison of the expected performance under repeated hybrid male cross and crisscross mating systems. Journal of Animal Science 51(SUPPL 1): 125, 1980

Comparison of lifetime performance in mice under crisscross, repeat hybrid male cross and random mating systems. Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 69(5-6): 447-455, 1985

Reproductive performance for triple cross vs back cross mating systems. Journal of Animal Science 37(1): 233-234, 1973

Hybrid vigor estimates for first backcross of crisscross breeding systems involving Angus and Hereford breeds. 1970

Assortative mating and differential male mating success in an ash hybrid zone population. Bmc Evolutionary Biology 6: 96-96, 2006

Pollen Performance in Clarkia Taxa with Contrasting Mating Systems: Implications for Male Gametophytic Evolution in Selfers and Outcrossers. Plants 2(2): 248-278, 2013

Characteristics and performance of male sterile and hybrid seed produced by cross-pollination in hard red spring wheat. Dissertation Abstracts International, B Sciences and Engineering 44(12, I): 3602B-3603B, 1984

Results of slaughter performance of male hybrid progeny fro m mating Italian beef breeds with Black Pied cows, and economic evaluation of the results. Tierzucht 31 (3) 118-121, 1977

Characteristics and performance of male sterile and hybrid seed produced by cross pollination in hard red spring wheat triticum aestivum. Crop Science 26(1): 55-57, 1986

Roamers and stayers a model on male mating tactics and mating systems. American Naturalist 139(1): 177-189, 1992