The objective of this research paper was to make an assessment of breeding value of performance tested gilts of Swedish Landrace and F-1 crossbreds of Swedish Landrace and Great Yorkshire by the method of selection index. The traits on whose basis the breeding value was estimated were: daily liveweight gain, average backfat thickness measured at two sites and carcass meat percentage. These traits were corrected for body mass of 100kg by the method of base indexes and the following average values were determined: corrected daily liveweight gain (KZDP) 408.93g/day, corrected average backfat thickness measured at two sites (KSL) 9.77mm and corrected carcass meat percentage (KPM) 61.08%. Studying the effect of genotype, year and birth season of gilts a statistically significant variation (P>0.05) of these traits provoked by the mentioned factors was not determined while the gilts sire statistically highly significantly (P lt 0.001) influenced all studied traits. Heritability coefficients w...ere: h(2)= 0.255 for KZDP, h(2)= 0.356 for KSL and h(2)= 0.349 for KPM. The four selection index equations were constructed among which as the most optimal was chosen the one which includes all three traits (KZDP, KSL and KPM) and whose coefficient of the correlation of selection index and aggregate genotype was r(IAG) = 0.594.
Keywords:
backfat thickness / liveweight daily gain / meat percentage / heritability / selection index
TY - JOUR
AU - Popovac, Mladen
AU - Petrović, Milica
AU - Radojković, Dragan
AU - Stanojević, Dragan
AU - Miletić, Aleksandar
AU - Perišić, Predrag
PY - 2014
UR - http://aspace.agrif.bg.ac.rs/handle/123456789/3432
AB - The objective of this research paper was to make an assessment of breeding value of performance tested gilts of Swedish Landrace and F-1 crossbreds of Swedish Landrace and Great Yorkshire by the method of selection index. The traits on whose basis the breeding value was estimated were: daily liveweight gain, average backfat thickness measured at two sites and carcass meat percentage. These traits were corrected for body mass of 100kg by the method of base indexes and the following average values were determined: corrected daily liveweight gain (KZDP) 408.93g/day, corrected average backfat thickness measured at two sites (KSL) 9.77mm and corrected carcass meat percentage (KPM) 61.08%. Studying the effect of genotype, year and birth season of gilts a statistically significant variation (P>0.05) of these traits provoked by the mentioned factors was not determined while the gilts sire statistically highly significantly (P lt 0.001) influenced all studied traits. Heritability coefficients were: h(2)= 0.255 for KZDP, h(2)= 0.356 for KSL and h(2)= 0.349 for KPM. The four selection index equations were constructed among which as the most optimal was chosen the one which includes all three traits (KZDP, KSL and KPM) and whose coefficient of the correlation of selection index and aggregate genotype was r(IAG) = 0.594.
PB - Društvo genetičara Srbije, Beograd
T2 - Genetika
T1 - The assessment of genetic potential in performance tested gilts by means of selection indexes method
EP - 104
IS - 1
SP - 95
VL - 46
DO - 10.2298/GENSR1401095P
ER -
@article{
author = "Popovac, Mladen and Petrović, Milica and Radojković, Dragan and Stanojević, Dragan and Miletić, Aleksandar and Perišić, Predrag",
year = "2014",
abstract = "The objective of this research paper was to make an assessment of breeding value of performance tested gilts of Swedish Landrace and F-1 crossbreds of Swedish Landrace and Great Yorkshire by the method of selection index. The traits on whose basis the breeding value was estimated were: daily liveweight gain, average backfat thickness measured at two sites and carcass meat percentage. These traits were corrected for body mass of 100kg by the method of base indexes and the following average values were determined: corrected daily liveweight gain (KZDP) 408.93g/day, corrected average backfat thickness measured at two sites (KSL) 9.77mm and corrected carcass meat percentage (KPM) 61.08%. Studying the effect of genotype, year and birth season of gilts a statistically significant variation (P>0.05) of these traits provoked by the mentioned factors was not determined while the gilts sire statistically highly significantly (P lt 0.001) influenced all studied traits. Heritability coefficients were: h(2)= 0.255 for KZDP, h(2)= 0.356 for KSL and h(2)= 0.349 for KPM. The four selection index equations were constructed among which as the most optimal was chosen the one which includes all three traits (KZDP, KSL and KPM) and whose coefficient of the correlation of selection index and aggregate genotype was r(IAG) = 0.594.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika",
title = "The assessment of genetic potential in performance tested gilts by means of selection indexes method",
pages = "104-95",
number = "1",
volume = "46",
doi = "10.2298/GENSR1401095P"
}
Popovac, M., Petrović, M., Radojković, D., Stanojević, D., Miletić, A.,& Perišić, P.. (2014). The assessment of genetic potential in performance tested gilts by means of selection indexes method. in Genetika
Društvo genetičara Srbije, Beograd., 46(1), 95-104.
https://doi.org/10.2298/GENSR1401095P
Popovac M, Petrović M, Radojković D, Stanojević D, Miletić A, Perišić P. The assessment of genetic potential in performance tested gilts by means of selection indexes method. in Genetika. 2014;46(1):95-104.
doi:10.2298/GENSR1401095P .
Popovac, Mladen, Petrović, Milica, Radojković, Dragan, Stanojević, Dragan, Miletić, Aleksandar, Perišić, Predrag, "The assessment of genetic potential in performance tested gilts by means of selection indexes method" in Genetika, 46, no. 1 (2014):95-104,
https://doi.org/10.2298/GENSR1401095P . .
