ArticleAnimal bioscience2026
Effects of simultaneous supplementation of 3-phytase and 6-phytase on phosphorus and calcium digestibility in growing pigs.
Article in Animal bioscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Abstract
objectiveThe present study aimed to determine the effects of supplemental 3-phytase, 6-phytase, or both on total tract digestibility of phosphorus (P) and calcium in cornsoybean meal-based diets fed to growing pigs.
methodsTwelve barrows with an initial body weight of 63.1±3.0 kg were allotted to a triplicated 4×3 incomplete Latin square design with 4 diets and 3 periods to obtain 9 observations per diet. The experimental diets comprised 1) a control diet based on 73.3% corn and 23.0% soybean meal without inorganic P source or supplemental phytase, 2) the control diet supplemented with 1,000 phytase unit (FTU)/kg of 3-phytase, 3) the control diet supplemented with 1,000 FTU/kg of 6-phytase, and 4) the control diet supplemented with both 3-phytase at 500 FTU/kg and 6-phytase at 500 FTU/kg.
resultsSupplemental phytase reduced (p<0.05) the daily P output from pigs regardless of the phytase source or the combination of the 2 phytase sources. The pigs fed the diet supplemented with 6-phytase or both 3-phytase and 6-phytase had less daily P output compared with those fed the diet supplemented with only 3-phytase (p<0.05). The total tract digestibility of P in pigs fed the diet supplemented with both 3-phytase and 6-phytase was greater (p<0.05) than those fed the control diet or the diet supplemented with only 3-phytase. The apparent total tract digestibility of calcium in pigs fed the diet supplemented with 6-phytase or both 3-phytase and 6-phytase was greater compared with the control group (p<0.05).
conclusionTaken together, supplemental phytase increased P digestibility in cornsoybean meal-based diets fed to growing pigs regardless of the phytase sources and the effects of supplemental phytase on the P and calcium digestibility were most pronounced in the mixture of 3-phytase and 6-phytase.
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