Indian Journal of Animal Research

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Research Article

Indian Journal of Animal Research, volume 53 issue 3 (march 2019) : 294-298

Efficiency of genomic selection to improve meat quality in pigs using ZPLAN+

B. I. Lopez, C. W. Song, K.S. Seo
1Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, South Korea
Cite article:- Lopez I. B., Song W. C., Seo K.S. (2018). Efficiency of genomic selection to improve meat quality in pigs using ZPLAN+. Indian Journal of Animal Research. 53(3): 294-298. doi: 10.18805/ijar.B-848.

ABSTRACT

The phenotype or genomic enhanced breeding value (GEBV) of ultrasound intramuscular fat (UIMF) was used as the target trait to improve meat quality. The ZPLAN+ software was employed to calculate and compare the genetic gain and accuracy of each selection scenario. The first scenario reflected the current conventional selection program in which the selection index is composed of average daily gain (ADG), feed conversion ratio (FCR) and ultrasound backfat (UBF). In the second scenario, UIMF was added into the basic selection index as an indicator trait for meat quality. In scenario 3, UIMF was also incorporated into index; however, the GEBV was used instead of phenotype. In scenario 4 and 5, selection was based strictly on the GEBV, and UIMF was included in scenario 5. The results showed that the accuracies of scenario 3, 4 and 5, in which GEBV information was used, increased with increasing accuracy of the GEBV. Moreover, the trends of scenario 4 and 5 changed more rapidly relative to scenario 3. The addition of UIMF to the selection index had a positive effect on the genetic gain of ADG and FCR, but a negative effect on UBF. The addition of UIMF to the selection index led to improvement of other traits and to the overall meat quality, especially when genomic selection was applied.

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