Age of first breeding and incidence of dystocia and losses at parturition and post-partum in indigenous Nigerian pig
No hay miniatura disponible
Fecha
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Descripción
Studies were carried out on the prevalence of dystocia and losses at parturition and post-partum following early mating and first breeding in 15 Nigerian indigenous pigs six were 8 months old at the time of there first farrowing, while nine were 11 or 12 months at the time of their first farrowing. Forty-six piglets were born, of which 11 or 12 months at the time of there first farrowing. Forty-six piglets were born, of which 11 died at birth (24%) and a further 18 during the next 7 days (total loss 63.0%). The six pigs that farrowed at 8 months of age had smaller mean litters and births weights, a higher incidence of dystocia and higher piglet mortality at birth than those that farrowed later (32 with 91 % survival). However, increased age at first farrowing did not reduce the high death rate during the first week (50% of Piglets which survived at birth in both groups). This was attributed to starvation due to poor mothering ability following first farrowing since there was no agalactia or mastitis.
Palabras clave
age, breeds, parturition