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Asian-Australas J Anim Sci > Volume 12(6); 1999 > Article
Review Paper
Asian-Australasian Journal of Animal Sciences 1999;12(6): 956-965.
DOI: https://doi.org/10.5713/ajas.1999.956    Published online September 1, 1999.
New Technologies for Sow Nutrition and Management - Review -
K. S. Sohn, C. V. Maxwell
Abstract
Genetic selection and sophisticated management technology have produced modern sows which excel in litter size and milk production. Recent research has identified nutritional innovations which may enhance reproductive performance are summarized in this report. First, preliminary evidence indicates that organic chromium may enhance litter size and conception rate. Secondly, high producing sows, particularly primiparous sows, required higher protein/lysine in late gestation and or lactation to optimize weaning weight and subsequent litter size. Valine and isoleucine, but not leucine, have been shown to enhance milk production. Phased feeding programs with diet cost partitioned toward gilts and away form parity 3 to 8 sows have been suggested as a means of improving reproductive performance in young sows. Lastly, recent research with sufficient sow numbers to document the effect of dietary fiber on reproductive performance has shown that sows fed fiber farrowed and weaned more pigs.
Keywords: Sow; Nutrition; Management; Reproductive Performance


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