Milk Production of Sows

Abstract
A significant difference was found between sows of the different breeds and crosses in the amount of milk produced during a 6-week lactation period. A peak in lactation was reached in the third week by the Duroc and Landrace x Poland sows, in the fourth week by the Poland sows and in the fifth week by the Landrace sows. Superior performance, as measured by litter size and weight, was shown by the Landrace sows which reached a peak in milk production late in the lactation period. The milk yield of the sow was significantly correlated with the size of the litter suckled, the litter weight at weaning and the change in weight of the sows during lactation. It was not significantly correlated with the weight of the sows at the time of farrowing. A positive correlation was found between the amount of milk produced by the sow and the amount of creep feed consumed by her litter, pigs of sows producing the most milk consuming the most creep feed. Copyright © . .

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