The effect of scope of analyzed data on accuracy of selection indices for evaluation of sow breeding value
Uticaj obima analiziranih podataka na tačnost selekcijskih indeksa za procenu priplodne vrednosti krmača
Апстракт
Objective of this paper was to establish to what extent the accuracy of constructed selection indices will be changed depending on the scope of analyzed data relating to fertility based on which parameters necessary for construction of selection indices (SI) were established. Fertility results of Swedish Landrace sows obtained on three farms in Republic of Serbia (farms 1, 2 and 3) were analyzed. Parameters necessary for construction of SI were determined by application of different mixed models of the method of Least Squares. For each farm three SI were constructed for evaluation of sow breeding value based on realized fertility in the way that parameters necessary for SI construction were calculated based on fertility results in the first (SI1), first two (SI2) and first three farrowings (SI3). Accuracy of constructed Sis varied within following limits - from low rIH = 0.255 (SI3 for Farm 2) to rIH = 0.405 (SI1 for Farm 3), and only in the case of SI2 for Farm 2 it was in the categor...y of very low (rIH = 0.231). Introduction into analysis of fertility results realized in the second and third farrowing resulted in decrease of accuracy of constructed selection indices.
U ovom radu rezultati istraživanja su pokazali da je tačnost selekcijskih indeksa konstruisanih na osnovu parametara ocenjenih analizom rezultata plodnosti (BŽP i BOP) ostvarenih na posmatranim farmama bila od rIH = 0.255 (SI3 za Farmu 2) do rIH = 0.405 (SI1 za Farmu 3), a samo je u slučaju SI2 za Farmu 2 bila u kategoriji jako slabe (rIH = 0.231). Povećanje obima analiziranih rezultata plodnosti dovelo je do smanjenja tačnosti SI.
Кључне речи:
sows / breeding value / selection index / correlation between index and aggregate genotypeИзвор:
Biotechnology in Animal Husbandry, 2009, 25, 5-6-2, 817-823Издавач:
- Institut za stočarstvo, Beograd
Финансирање / пројекти:
- Projekat Ministarstva nauke Republike Srbije, br. NTR 20087
Институција/група
Poljoprivredni fakultetTY - JOUR AU - Radojković, Dragan AU - Petrović, M. AU - Mijatović, Milan AU - Radović, Čedomir PY - 2009 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/1886 AB - Objective of this paper was to establish to what extent the accuracy of constructed selection indices will be changed depending on the scope of analyzed data relating to fertility based on which parameters necessary for construction of selection indices (SI) were established. Fertility results of Swedish Landrace sows obtained on three farms in Republic of Serbia (farms 1, 2 and 3) were analyzed. Parameters necessary for construction of SI were determined by application of different mixed models of the method of Least Squares. For each farm three SI were constructed for evaluation of sow breeding value based on realized fertility in the way that parameters necessary for SI construction were calculated based on fertility results in the first (SI1), first two (SI2) and first three farrowings (SI3). Accuracy of constructed Sis varied within following limits - from low rIH = 0.255 (SI3 for Farm 2) to rIH = 0.405 (SI1 for Farm 3), and only in the case of SI2 for Farm 2 it was in the category of very low (rIH = 0.231). Introduction into analysis of fertility results realized in the second and third farrowing resulted in decrease of accuracy of constructed selection indices. AB - U ovom radu rezultati istraživanja su pokazali da je tačnost selekcijskih indeksa konstruisanih na osnovu parametara ocenjenih analizom rezultata plodnosti (BŽP i BOP) ostvarenih na posmatranim farmama bila od rIH = 0.255 (SI3 za Farmu 2) do rIH = 0.405 (SI1 za Farmu 3), a samo je u slučaju SI2 za Farmu 2 bila u kategoriji jako slabe (rIH = 0.231). Povećanje obima analiziranih rezultata plodnosti dovelo je do smanjenja tačnosti SI. PB - Institut za stočarstvo, Beograd T2 - Biotechnology in Animal Husbandry T1 - The effect of scope of analyzed data on accuracy of selection indices for evaluation of sow breeding value T1 - Uticaj obima analiziranih podataka na tačnost selekcijskih indeksa za procenu priplodne vrednosti krmača EP - 823 IS - 5-6-2 SP - 817 VL - 25 UR - https://hdl.handle.net/21.15107/rcub_agrospace_1886 ER -
@article{ author = "Radojković, Dragan and Petrović, M. and Mijatović, Milan and Radović, Čedomir", year = "2009", abstract = "Objective of this paper was to establish to what extent the accuracy of constructed selection indices will be changed depending on the scope of analyzed data relating to fertility based on which parameters necessary for construction of selection indices (SI) were established. Fertility results of Swedish Landrace sows obtained on three farms in Republic of Serbia (farms 1, 2 and 3) were analyzed. Parameters necessary for construction of SI were determined by application of different mixed models of the method of Least Squares. For each farm three SI were constructed for evaluation of sow breeding value based on realized fertility in the way that parameters necessary for SI construction were calculated based on fertility results in the first (SI1), first two (SI2) and first three farrowings (SI3). Accuracy of constructed Sis varied within following limits - from low rIH = 0.255 (SI3 for Farm 2) to rIH = 0.405 (SI1 for Farm 3), and only in the case of SI2 for Farm 2 it was in the category of very low (rIH = 0.231). Introduction into analysis of fertility results realized in the second and third farrowing resulted in decrease of accuracy of constructed selection indices., U ovom radu rezultati istraživanja su pokazali da je tačnost selekcijskih indeksa konstruisanih na osnovu parametara ocenjenih analizom rezultata plodnosti (BŽP i BOP) ostvarenih na posmatranim farmama bila od rIH = 0.255 (SI3 za Farmu 2) do rIH = 0.405 (SI1 za Farmu 3), a samo je u slučaju SI2 za Farmu 2 bila u kategoriji jako slabe (rIH = 0.231). Povećanje obima analiziranih rezultata plodnosti dovelo je do smanjenja tačnosti SI.", publisher = "Institut za stočarstvo, Beograd", journal = "Biotechnology in Animal Husbandry", title = "The effect of scope of analyzed data on accuracy of selection indices for evaluation of sow breeding value, Uticaj obima analiziranih podataka na tačnost selekcijskih indeksa za procenu priplodne vrednosti krmača", pages = "823-817", number = "5-6-2", volume = "25", url = "https://hdl.handle.net/21.15107/rcub_agrospace_1886" }
Radojković, D., Petrović, M., Mijatović, M.,& Radović, Č.. (2009). The effect of scope of analyzed data on accuracy of selection indices for evaluation of sow breeding value. in Biotechnology in Animal Husbandry Institut za stočarstvo, Beograd., 25(5-6-2), 817-823. https://hdl.handle.net/21.15107/rcub_agrospace_1886
Radojković D, Petrović M, Mijatović M, Radović Č. The effect of scope of analyzed data on accuracy of selection indices for evaluation of sow breeding value. in Biotechnology in Animal Husbandry. 2009;25(5-6-2):817-823. https://hdl.handle.net/21.15107/rcub_agrospace_1886 .
Radojković, Dragan, Petrović, M., Mijatović, Milan, Radović, Čedomir, "The effect of scope of analyzed data on accuracy of selection indices for evaluation of sow breeding value" in Biotechnology in Animal Husbandry, 25, no. 5-6-2 (2009):817-823, https://hdl.handle.net/21.15107/rcub_agrospace_1886 .