Standardized ileal amino acid digestibility of expeller-extracted canola meal subjected to different processing conditions for starter and grower broiler chickens

Poultry Science
M ToghyaniR A Swick

Abstract

Six expeller-extracted canola meal (ECM) samples produced under different seed conditioning temperatures (90, 95, or 100°C) and screw torques in the second press (low or high) were evaluated in a 3 × 2 factorial arrangement of treatments to determine the effect of processing on standardized ileal amino acid digestibility (SID) in 10 and 24-day-old broilers. A nitrogen-free diet was fed to determine ileal endogenous amino acid flow. Each diet was fed for 5 d to 6 replicate cages of 10 or 7 chicks, and ileal samples were collected at 10 and 24 d, respectively. The endogenous flow (mg/kg DM intake) of CP and all amino acids except Cys decreased (P < 0.01) with age. Conditioning temperature by screw torque interactions were detected (P < 0.05) for apparent ileal digestibility (AID) of CP, Arg, Ile, Lys, Phe, Thr, Ala, Asp, Glu, Pro ,and Ser at d 10, and the same trend was observed at d 24 except for Ile, Phe, Ala, and Pro (P > 0.05). Meals processed under medium conditioning temperature (95°C) at either low or high screw torque had the greatest (P < 0.05) AID of CP and total amino acids. The SID values followed a similar pattern as AID at both ages. When corrected for endogenous losses, the average AID of total amino acids improved...Continue Reading

References

Dec 21, 2006·Journal of Animal Science·H H SteinUNKNOWN Committee on Terminology to Report AA Bioavailability and Digestibility
Jan 7, 2010·Journal of Animal Physiology and Animal Nutrition·A F SoleimaniI Zulkifli
Mar 23, 2011·Journal of Animal Science·R W SeneviratneR T Zijlstra
Sep 20, 2012·Poultry Science·F Khajali, B A Slominski
Jun 5, 2013·Journal of Food Science and Technology·Devinder DhingraR T Patil

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Citations

Feb 1, 2019·Journal of Animal Physiology and Animal Nutrition·Wolfgang SiegertMarkus Rodehutscord
Jan 9, 2021·Journal of Animal Science and Biotechnology·V Ravindran

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