Selection of dam breeds under stable and declined conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F22%3AN0000148" target="_blank" >RIV/00027014:_____/22:N0000148 - isvavai.cz</a>

Result on the web

<a href="http://uniag.sk" target="_blank" >http://uniag.sk</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15414/afz.2022.25.03.203-210" target="_blank" >10.15414/afz.2022.25.03.203-210</a>

Result language

angličtina

Original language name

Selection of dam breeds under stable and declined conditions

Original language description

Reproductive selection index of two dam pig breeds was established five years ago to enhance the reproductive ability of sows. Since then, positive genetic progress in the population and some economic disorders (e.g. the input and output prices disproportion) appeared in the swine sector. The study aimed to revise index according to the current circumstances and further ensure the desired gain. In three index constructions, the current, optimal, and adjusted trait proportion was assessed. Economic weights (EWs) of the breeding objective traits were applied in two alternatives to evaluate the index for future stable and deteriorated conditions. Under the current index construction and stable EWs, the favourable selection gain in piglets born alive (NBA) and slight extension of farrowing interval (FI) is indicated. The optimal index construction would result in a favourable gain of both traits in one breed. The adjusted index maintained the increasing litter size equal to the current index and achieved favourable gain in FI in both breeds. The same was true for deteriorated economic conditions except for the optimised index, where expected higher genetic progress in one breed. Nevertheless, this genetic gain was insufficient to compensate the declined EW of traits, and the overall financial benefit was almost half of those in stable conditions. For both alternatives of evaluated economic conditions, the current index should be revised in terms of a slightly higher proportion of FI to reach favourable genetic gain in both breeding goals.

Czech name

—

Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

40203 - Husbandry

Project

<a href="/en/project/QK1910217" target="_blank" >QK1910217: Creation of a reference population and development of methods for estimating genomic breeding values of pig traits included into the Czech National Breeding Program.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Fytotechnica et Zootechnica

ISSN

1336-9245

e-ISSN

—

Volume of the periodical

25

Issue of the periodical within the volume

3

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

203-210

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85148344527