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Ileal digestibility of amino acids, phosphorus, phytate and energy in pigs fed sorghum‐based diets supplemented with phytase and Pancreatin ®
Author(s) -
Cervantes M.,
Gómez R.,
Fierro S.,
Barrera M. A.,
Morales A.,
Araiza B. A.,
Zijlstra R. T.,
Sánchez J. E.,
Sauer W. C.
Publication year - 2011
Publication title -
journal of animal physiology and animal nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.651
H-Index - 56
eISSN - 1439-0396
pISSN - 0931-2439
DOI - 10.1111/j.1439-0396.2010.01038.x
Subject(s) - phytase , soybean meal , sorghum , meal , phosphorus , food science , ileum , biology , amino acid , phytic acid , lysine , chemistry , zoology , biochemistry , enzyme , agronomy , raw material , ecology , organic chemistry
Summary The effects of phytase supplementation on the apparent ileal digestibility (AID) of amino acids (AA) have been inconsistent. Two experiments evaluated the effect of providing a mixture of pancreatic enzymes (Pancreatin ® ) to growing pigs fed sorghum–soybean meal diets supplemented with phytase on the AID of AA, energy, and phosphorus (P), as well as the ileal digestibility (ID) of phytate; there were four periods per experiment. In Experiment 1, eight pigs (BW 22.1 ± 1.3 kg) were fitted with a T‐cannula at the distal ileum. Each period consisted of 9 days; 7 days for diet adaptation, and 2 days for digesta collection. Treatments (T) were: (i) basal sorghum–soybean meal diet, (ii) basal diet plus Pancreatin ® , (iii) basal diet plus phytase and (iv) basal diet plus phytase and Pancreatin ® . Phytase increased the digestibilities of phytate and P (p < 0.001), but did not affect the AID of AA and energy (p > 0.10). Except for methionine (p = 0.07), Pancreatin ® did not affect the AID of AA. Phytase and Pancreatin ® did not interact (p > 0.10). Experiment 2 was similar to Experiment 1, but Pancreatin ® was infused into duodenum. Pancreatin ® infusion did not affect the AID of AA (p > 0.10); and tended to reduce (p = 0.09) the AID of lysine. Phytase × Pancreatin ® interactions were not observed (p > 0.10). In conclusion, phytase and Pancreatin ® did not improve the AID of AA in growing pigs fed sorghum–soybean meal diets indicating that phytates did not affect AA digestibility.