The length of boar use at artificial insemination stations

Records on 1069 boars from thirteen artificial insemination stations (AIS) in the Czech Republic were processed. The boars in question were discarded from insemination within seven years. The breed stucture was as follows: Large White, Landrace, Prestice Black-Pied, Czech Expressly Meat, Hampshire,...

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Bibliographic Details
Published inZivocisna Vyroba - UZPI (Czech Republic) Vol. 42; no. 9
Main Author Smital, J. (Vyzkumny Ustav Zivocisne Vyroby, Prague-Uhrineves (Czech Republic))
Format Journal Article
LanguageCzech
Published 01.09.1997
Subjects
AGE
ARTIFICIAL INSEMINATION
BOARS
BREEDS (ANIMALS)
CZECH REPUBLIC
EDAD
INSEMINACION ARTIFICIAL
INSEMINATION ARTIFICIELLE
RACE (ANIMAL)
RAZAS (ANIMALES)
REPUBLICA CHECA
REPUBLIQUE TCHEQUE
SEMEN
SPERME
VERRACO
VERRAT
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Summary:Records on 1069 boars from thirteen artificial insemination stations (AIS) in the Czech Republic were processed. The boars in question were discarded from insemination within seven years. The breed stucture was as follows: Large White, Landrace, Prestice Black-Pied, Czech Expressly Meat, Hampshire, Duroc, Pietrain and hybrid boars. These characteristics were studied by means of linear models: boar age in months at its inclusion to an AIS and boar age in months at its discarding from AIS. The relation of the age at discarding to the age at boar inclusion in insemination and to the frequency of semen collections was determined by the least-squares method.
Bibliography:1997001075
L53
ISSN:0044-4847