Usefulness of wbp, pbz and Hampshire breeds for three-breeds rotational crossing

Obtained results indicate that under conditions of large-scale breeding purebreed wbp and pbz animals are characterized by low productivity and their use for simple 2-breed crossing does not develop heterosis in the studied traits. It was found that Hampshire breed used for 2- and 3-breed crossing w...

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Bibliographic Details
Published inZeszyty Naukowe Akademii Rolniczej we Wroclawiu. Rozprawy (Poland). no. 66
Main Author Jasek S
Format Dissertation
LanguageEnglish
Published 1987
Subjects
carcass composition
cerdo
composicion de la canal
composition de la carcasse
costos de produccion
cout de production
croisement
crossbreds
crossbreeding
cruzamiento
feed intake
gain de poids
ganancia de peso
hybrid vigour
ingestion de pienso
performance de reproduction
peso de la canal
poids a l' abattage
porcin
prise alimentaire animaux
production costs
productos del cruzamiento
produit de croisement
reproductividad
reproductivity
slaughter weight
swine
vigor hibrido
vigueur hybride
weight gain
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Summary:Obtained results indicate that under conditions of large-scale breeding purebreed wbp and pbz animals are characterized by low productivity and their use for simple 2-breed crossing does not develop heterosis in the studied traits. It was found that Hampshire breed used for 2- and 3-breed crossing with wbp and pbz breeds led to an increase of productivity of crosses and the highest effects can be obtained for 3-breed simple crossing, following the formula: (pbz x wbp) x Hampshire. Rotational 3-breed crossing gives enhanced productivity of crosses as compared with purebreeds, but it is lower than in case of 3-breed crossing.
Bibliography:L10
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ISSN:0209-1321