Impact of hyper-prolific population generation on the reproduction of sows in multiplication herds

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F10%3A63509213" target="_blank" >RIV/70883521:28610/10:63509213 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Impact of hyper-prolific population generation on the reproduction of sows in multiplication herds
Original language description
The aim of this study was to evaluate the impact of higher selection pressure used in hyper-prolific population on the reproduction of subsequent generations breed in a multiplication herd. Information on 539 liters of 178 ancestors of purebred sows fromboth hyper-prolific and normal population was included. Higher selection pressure particularly on litter size and teat number was applied in the hyper-prolific population. Differences between total number of piglets born, number of piglets born alive ornumber of piglets weaned were neither observed on the 1st only nor on the 1st ? 5th litters. Likewise, no effect on the age of sows at the first parturition and number of insemination per pregnant had been found. A significant response on selection wasdetermined only for teat number. The descendents of hyper-prolific population had about 0.37 teats more than sows of normal population. The results suggest that to achieve desired litter size in multiplication herds the selection criteria
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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