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- Title
Energy and Nutrient Digestibility in Hybrid rye Ground to two Particle Sizes and fed without or with Multicarbohydrase Supplementation to Growing Pigs.
- Authors
Jichen Song; Nyachoti, Martin; Heuer, Claus Hinrich; Jinyoung Lee
- Abstract
Newly breeded hybrid fall rye (HFR) with improved ergot resistance can be an alternative energy source for pigs. Sixteen ileal-cannulated barrows (initial BW = 18.2 ± 1.0 kg) were used to determine the effects of particle size (PS) and multicarbohydrase (MC) supplementation on energy and nutrient digestibility in HFR. Pigs were randomly assigned to 1 of 8 diets in a replicated 8 × 3 incomplete Latin square design. Each period lasted 9 d, with the first 5 d being for adaptation followed by 2 d each for fecal and ileal digesta collection. Two HFR varieties (KWS Bono and KWS Gatano) were hammer milled to a coarse (1,111 µm and 1,210 µm) or fine (594 µm and 717 µm) PS. Diets contained 92.9% HFR as the only source of protein without or with MC supplementation and 0.3% titanium dioxide as an indigestible marker. Data were analyzed using the MIXED procedure of SAS, with the final model having variety, PS, MC supplementation, and their interactions as the main effects. There were no interaction effects of variety, PS, and MC supplementation on the variables measured. The apparent total tract digestibility (ATTD) of dry matter (DM), crude protein (CP), and neutral detergent fiber (NDF) were greater (P < 0.05) in KWS Bono than in KWS Gatano. The ATTD of gross energy (GE) and NDF tended to be greater (P < 0.10) in finely than in coarsely ground HFR. MC supplementation increased (P < 0.05) the ATTD of DM (83.5 vs. 84.6%) and GE (83.1 vs. 84.2%) and tended to increase (P < 0.10) the ATTD of NDF in HFR. In conclusion, the nutrient digestibility of HFR can be affected by its variety, and fine PS and MC supplementation could improve the nutrient digestibility in HFR fed to growing pigs.
- Subjects
SWINE growth; RENEWABLE energy sources; DIETARY supplements; RYE; SWINE; MAGIC squares
- Publication
Journal of Animal Science, 2022, Vol 100, p281
- ISSN
0021-8812
- Publication type
Article
- DOI
10.1093/jas/skac247.511