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Effect of enzyme supplementation on intestinal parameters in the pig

Published online by Cambridge University Press:  21 November 2017

J. Inborr ,
M. Bedford  and
H. Graham
J. Inborr
Affiliation:
Finnfeeds International Ltd., Ailesbury Court, High Street, Marlborough, Wiltshire SN8 1AA
M. Bedford
Affiliation:
Finnfeeds International Ltd., Ailesbury Court, High Street, Marlborough, Wiltshire SN8 1AA
H. Graham
Affiliation:
Finnfeeds International Ltd., Ailesbury Court, High Street, Marlborough, Wiltshire SN8 1AA
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Extract

Reducing foregut digesta viscosity is the primary mode of action of feed enzymes in improving performance in broilers fed wheat and barley based diets (Bedford & Classen, 1991, Graham et al, 1992). In pigs, inclusion of appropriate fibre-degrading enzymes can improve the apparent digestion of nutrients in the small intestine (Graham et al, 1988). This has been attributed to both reduced digesta viscosity and an opening up of the feed cell walls enclosing the nutrients. However, the exact mechanism of this effect is unknown. This trial was designed to investigate the influence of enzyme supplementation on gut parameters in the pig.

A total of 40 crossbred pigs were weaned at about 9.5 kg and placed into 5 blocks of 8 individual metabolism cages based on litter origin, sex and liveweight. There were 2 treatment replicates per block. The mash diets were based on barley (751 kg/t), soyabean meal (150 kg/t), fish meal (40 kg/t) and soya oil (20 kg/t), with 1 kg/t chromic oxide as a marker. A hulled, low β-glucan (2.9 % of DM; Arra, Finland) and a naked, high β-glucan (5.3 % of DM; Condor, Canada) barley were used, and diets were fed without or with added /3-glucanase. Pigs were fed for 21 days, then sacrificed. Digesta was collected from the stomach, 4 equal lengths of the small intestine, the caecum and 2 equal sections of the colon plus rectum.

Type
PIG Feeding and Nutrition
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1994 , March 1994 , pp. 33
Copyright
Copyright © The British Society of Animal Production 1994

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References

Bedford, M R & Classen, H L (1992) Reduction of intestinal viscosity through manipulation of dietary rye and pentosanase concentration is effected through changes in the carbohydrate composition of the intestinal aqueous phase and results in improved growth rate and feed conversion of broiler chickens. J. Nutr., 122, 560–569.Google Scholar
Graham, H, Bedford, M R & Choct, M (1992) High gut viscosity can reduce poultry performance. Feedstuffs, 65 (6), 14–16.Google Scholar
Graham, H., Lowgren, W, Petersson, D. & Aman, P (1988) Effect of enzyme supplementation on digestion of a barley/pollard based pig diet. Nutr. Rep. Inter., 8, 1073–1079.Google Scholar