A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experiments
Two experiments tested the effect of a bacterial 6-phytase (PhyG) supplemented to a vegetable broiler diet without or with added trace minerals (TM), on growth performance and TM utilization. Each tested 12 treatments in a 2 × 6 factorial arrangement with 3,360 Ross 308 males (35 birds/pen, 8 pens/t...
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Elsevier
2025-01-01
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| Series: | Poultry Science |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S003257912401188X |
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| author | Yueming Dersjant-Li Cees Kwakernaak Abiodun Bello Leon Marchal |
| author_facet | Yueming Dersjant-Li Cees Kwakernaak Abiodun Bello Leon Marchal |
| author_sort | Yueming Dersjant-Li |
| collection | DOAJ |
| description | Two experiments tested the effect of a bacterial 6-phytase (PhyG) supplemented to a vegetable broiler diet without or with added trace minerals (TM), on growth performance and TM utilization. Each tested 12 treatments in a 2 × 6 factorial arrangement with 3,360 Ross 308 males (35 birds/pen, 8 pens/treatment) in a randomized complete block design. Phytase levels comprised no PhyG or PhyG at 2,000, 1,500 and 1,000 FTU/kg during 0 to 10, 10 to 20 and (Experiment 2) 20 to 35 d of age, respectively; TM diets comprised: no added TM (diet 1); 10, 15, 3 and 10, or 20, 30, 6 and 20 mg/kg of Zn, Fe, Cu and Mn as sulphate (diets 2 and 3); 15, 3 and 10 mg/kg of Zn, Cu and Mn as oxide and 15 mg/kg Fe as sulphate, or 30, 6 and 20 mg/kg of Zn, Cu and Mn as oxide and 30 mg/kg Fe as sulphate (diets 4 and 5), and; 10, 3, 15 and 10 mg/kg of organic Zn, Cu, Fe and Mn (diet 6). Apart from no added TM, basal diets were nutritionally adequate; phytase-supplemented diets were reduced in Ca and retainable P. All diets were pelleted and fed ad libitum. In both experiments during all phases there were interactions (P < 0.05) between phytase and TM on BW, BW gain (BWG), feed intake (FI), FCR (experiment 2 only) and tibia Zn. Without phytase, TM improved (P < 0.05) these measures. Phytase without TM increased (P < 0.05) d 35 BW, overall BWG and FI, equivalent to or beyond the level achieved by TM without phytase. Tibia Zn at d 10 and 20 in Experiment 2 was increased by phytase beyond the level achieved by TM without phytase (P < 0.05). Phytase also increased (P < 0.05) liver Zn, Fe, and Mn at d 10 and 20 and plasma Zn at d 20 d. There was no consistent effect of TM source or dose on bird responses. In conclusion, PhyG phytase replaced the effect of added TM on performance during 0 to 35 d of age and could support a reduction in commercial dose levels of added TM in all-vegetable broiler diets. |
| format | Article |
| id | doaj-art-c61f8ada18264d4d96412fb20b8916bd |
| institution | Kabale University |
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| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Poultry Science |
| spelling | doaj-art-c61f8ada18264d4d96412fb20b8916bd2025-01-22T05:40:41ZengElsevierPoultry Science0032-57912025-01-011041104610A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experimentsYueming Dersjant-Li0Cees Kwakernaak1Abiodun Bello2Leon Marchal3Danisco Animal Nutrition & Health (IFF), Willem Einthovenstraat 4, 2342 BH Oegstgeest, the Netherlands; Corresponding author.Schothorst Feed Research, PO Box 533, 8200 AM Lelystad, The NetherlandsDanisco Animal Nutrition & Health, IFF, Wilmington, 19803, DE, USADanisco Animal Nutrition & Health (IFF), Willem Einthovenstraat 4, 2342 BH Oegstgeest, the NetherlandsTwo experiments tested the effect of a bacterial 6-phytase (PhyG) supplemented to a vegetable broiler diet without or with added trace minerals (TM), on growth performance and TM utilization. Each tested 12 treatments in a 2 × 6 factorial arrangement with 3,360 Ross 308 males (35 birds/pen, 8 pens/treatment) in a randomized complete block design. Phytase levels comprised no PhyG or PhyG at 2,000, 1,500 and 1,000 FTU/kg during 0 to 10, 10 to 20 and (Experiment 2) 20 to 35 d of age, respectively; TM diets comprised: no added TM (diet 1); 10, 15, 3 and 10, or 20, 30, 6 and 20 mg/kg of Zn, Fe, Cu and Mn as sulphate (diets 2 and 3); 15, 3 and 10 mg/kg of Zn, Cu and Mn as oxide and 15 mg/kg Fe as sulphate, or 30, 6 and 20 mg/kg of Zn, Cu and Mn as oxide and 30 mg/kg Fe as sulphate (diets 4 and 5), and; 10, 3, 15 and 10 mg/kg of organic Zn, Cu, Fe and Mn (diet 6). Apart from no added TM, basal diets were nutritionally adequate; phytase-supplemented diets were reduced in Ca and retainable P. All diets were pelleted and fed ad libitum. In both experiments during all phases there were interactions (P < 0.05) between phytase and TM on BW, BW gain (BWG), feed intake (FI), FCR (experiment 2 only) and tibia Zn. Without phytase, TM improved (P < 0.05) these measures. Phytase without TM increased (P < 0.05) d 35 BW, overall BWG and FI, equivalent to or beyond the level achieved by TM without phytase. Tibia Zn at d 10 and 20 in Experiment 2 was increased by phytase beyond the level achieved by TM without phytase (P < 0.05). Phytase also increased (P < 0.05) liver Zn, Fe, and Mn at d 10 and 20 and plasma Zn at d 20 d. There was no consistent effect of TM source or dose on bird responses. In conclusion, PhyG phytase replaced the effect of added TM on performance during 0 to 35 d of age and could support a reduction in commercial dose levels of added TM in all-vegetable broiler diets.http://www.sciencedirect.com/science/article/pii/S003257912401188XBroilersPhytaseTrace mineralsBio-availability |
| spellingShingle | Yueming Dersjant-Li Cees Kwakernaak Abiodun Bello Leon Marchal A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experiments Poultry Science Broilers Phytase Trace minerals Bio-availability |
| title | A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experiments |
| title_full | A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experiments |
| title_fullStr | A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experiments |
| title_full_unstemmed | A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experiments |
| title_short | A novel consensus bacterial 6-phytase variant supplemented to an all-vegetable broiler diet totally replaced added trace minerals including zinc, iron, copper and manganese in two experiments |
| title_sort | novel consensus bacterial 6 phytase variant supplemented to an all vegetable broiler diet totally replaced added trace minerals including zinc iron copper and manganese in two experiments |
| topic | Broilers Phytase Trace minerals Bio-availability |
| url | http://www.sciencedirect.com/science/article/pii/S003257912401188X |
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