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Impact of reproductive and productive rates on levels of inbreeding and genetic gain of pigs through data simulation R. Bras. Zootec.
Lopes,Jader Silva; Rorato,Paulo Roberto Nogara; Breda,Fernanda Cristina; Freitas,Marcelo Silva de; Farah,Michel Marques; Carreño,Luis Orlando Duitama; Oliveira,Mauricio Morgado de.
ABSTRACT The objective of this study was to evaluate the impact of farrowing and mortality rates on inbreeding levels and genetic gain through data simulation. Data came from two real populations A and B, composed of Pietrain and Landrace breed pigs, respectively. To generate the simulated populations, a Fortran-language simulator was developed using the (co)variances of the breeding values and productive and reproductive information obtained from populations A and B, as well as restrictions on mating and animals selected per generation. Two data files were created. The first contained the pedigree of the previous 10 years, with 21,906 and 251,343 animals in populations A and B, respectively. The second included the breeding values for age, backfat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Farrowing rate; Mortality rate; Viability of piglets.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100306
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