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Effect of Different Mating Systems on Population Structure and Genetic Progress of a Simulated Small Flock

Author

Listed:
  • Assis Rubens Montenegro
  • Luciano Pinheiro da Silva

    (Departamento de Zootecnia, Universidade Federal do Ceara, Brazil)

  • Raimundo Nonato Braga Lobo

    (Embrapa Caprinos e Ovinos, Estrada Sobral/Groairas, Brazil)

Abstract

Strategies to promote genetic progress or preserve genetic diversity in small populations may change due to population size. Higher inbreeding coefficients are associated to the use of breeding values predicted by mixed model methodology, which tends to score better animals within the best families. The reduced effective population size makes herds more susceptible to genetic drift and inbred matings. We compared three methodologies/software on simulated data that reproduced small-closed populations: Mate Selection (evolutionary differential), Gencont (Lagrange Multipliers) and SGRmate (linear programming).

Suggested Citation

  • Assis Rubens Montenegro & Luciano Pinheiro da Silva & Raimundo Nonato Braga Lobo, 2019. "Effect of Different Mating Systems on Population Structure and Genetic Progress of a Simulated Small Flock," International Journal of Environmental Sciences & Natural Resources, Juniper Publishers Inc., vol. 21(1), pages 01-14, August.
    • Handle: RePEc:adp:ijesnr:v:21:y:2019:i:1:p:01-14
    DOI: 10.19080/IJESNR.2019.21.556051
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    Keywords

    earth and environment journals; environment journals; open access environment journals; peer reviewed environmental journals; open access; juniper publishers; ournal of Environmental Sciences; juniper publishers journals ; juniper publishers reivew;
    All these keywords.

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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