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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)...


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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