Maternal incidence on the birth and weaning weights of Large White x Pietrain sucking pigs

We continue a previous work (Tena and coll. 1974 d) on cross-bred Large White x Pietrain Piglets. The weights at birth and weaning (45 days) of the Large White x Pietrain pigs were: 1.275 to 0"278 Kg and 12.670 to 0"530 Kg, respectively. We did not find that the maternal age, represented by the number of pregnancies, had any influence on the average weights of the piglets at birth nor when weaned. The average weight of the piglets when weaned is significantly correlated with the weight at birth, in the fourm and fifth deliveries of the reproducing female pigs.Se continua un trabajo anterior (Tena y col. 1974 d) realizado en lechones cruzados Large White x Pietrain. Los pesos al nacimiento y destete (45 días) de los cerditos Large White x Pietrain fueron: 1’275 + 0"278 Kg y 12"670 + 0"530 Kg, respectivamente. No se ha encontrado influencia de la edad materna, representada por su número de partos, sobre el peso medio de los cerditos al nacer ni al destete. El peso medio de los lechones al destete esta correlacionado significativamente con el peso de nacimiento, en los partos 4° y 5° de las cerdas reproductoras