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- Title
Feeding a Multi-Enzyme Blend to Enhance the Nutrient Digestibility of Wheat-Canola Expeller Diets in Ileal-Cannulated Weaned Pigs.
- Authors
Soderstrom, A. Janine; Wang, Li Fang; Patterson, Rob; Beltranena, Eduardo; Zijlstra, Ruurd T.
- Abstract
Simple Summary: Feeding pigs to convert human non-edible plant coproducts into pork for human nutrition is important for sustainable food production systems. From canola seed, oil is used for cooking or biofuel production, and canola expeller is one of the high-fiber coproducts. Feed enzymes to degrade fiber may enhance nutrient utilization of diets containing high-fiber ingredients in pigs. Pigs were surgically prepared so that, in addition to feces, also digesta could be collected from the end of the small intestine to study the effect of a feed additive containing multiple enzymes on nutrient digestibility. Feeding the multi-enzyme blend increased the nutrient digestibility of the control diet containing wheat and barley as cereal grain, but not the nutrient digestibility of the canola expeller. Thus, research is needed to identify enzyme combinations or feed processing measures that increase the nutrient digestibility of canola expeller. Canola expeller (CE) contains ~200 g/kg residual oil, but also fiber that impairs nutrient digestibility in weaned pigs. To study if feed enzymes increase digestibility, six diets containing either the basal or two CE samples mixed in at 250 g/kg (CE-A or CE-B) were formulated with or without a multi-enzyme blend containing cellulase, xylanase, glucanase, amylase, protease, invertase, and pectinase. The basal diet containing 620 g/kg wheat and 150 g/kg barley served as control. Twelve ileal-cannulated barrows (9–15 kg) were fed the six diets in a replicated 6 (pigs) × 3 (periods) Youden square. Ileal digestibility of gross energy and amino acids was 5% greater for basal than CE diets without differences between CE samples. Diet energy values were 4% greater for CE than basal diets due to residual oil in CE. Inclusion of the multi-enzyme blend increased total tract digestibility of energy of the basal but not CE diets by 2%. Net energy value was greater for CE-A than CE-B because CE-A contained more residual oil. In conclusion, feeding 250 g/kg CE increased diet energy values; thus, CE can substitute added fat in weaned pig diets. Feeding the multi-enzyme blend increased the energy digestibility of wheat and barley-based diets fed to weaned pigs. However, research is needed to identify enzyme combinations that increase the nutrient digestibility of CE.
- Subjects
XYLANASES; ANIMAL feeds; NUTRITION; SUSTAINABILITY; SWINE; ANIMAL weaning; DIET
- Publication
Animals (2076-2615), 2024, Vol 14, Issue 11, p1644
- ISSN
2076-2615
- Publication type
Article
- DOI
10.3390/ani14111644