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The effect of lactose inclusion in finishing diets on nutrient digestibility, nitrogen excretion, lactobacilli concentrations and ammonia emissions from boars

  • K. M. Pierce (a1), T. Sweeney (a2), J. J. Callan (a1), C. Byrne (a2), P. McCarthy (a3) and J. V. O’Doherty (a1)...

Extract

There is growing interest in the manipulation of dietary ingredients a means of reducing nitrogen excretion (NE) and ammonia (NH3) losses from pig production. Significant quantities of lactose may reach the hindgut of the older pig undigested, yielding a substrate for bacteria (Kim et al., 1978). It is hypothesised that increasing concentrations of lactose in finishing pig diets will alter NE patterns and reduce NH3-N emission.

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Kim, Il., Jewell, D. E., Benevenga, N. J., Grummer, R. H., 1978. The fraction of dietary lactose available for fermentation in the caecum and colon of pigs. Journal of Animal Science 42: 6581665.

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