Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus
Summary: The effect of phytase and calcium (Ca) was investigated on performance of broiler chickens given diets severely limited in nonphytate phosphorus (NPP). A total of 550 ten-day-old broiler chickens were allocated to 10 diets from 11 to 40 d of age. There were a positive control (with adequate...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Journal of Applied Poultry Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1056617120300763 |
| _version_ | 1818666151303970816 |
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| author | H.R. Taheri M.M. Abbasi |
| author_facet | H.R. Taheri M.M. Abbasi |
| author_sort | H.R. Taheri |
| collection | DOAJ |
| description | Summary: The effect of phytase and calcium (Ca) was investigated on performance of broiler chickens given diets severely limited in nonphytate phosphorus (NPP). A total of 550 ten-day-old broiler chickens were allocated to 10 diets from 11 to 40 d of age. There were a positive control (with adequate Ca and NPP concentration) and 9 diets (with 1.4 g NPP/kg) consisting of Ca (5.6, 4.2, and 2.8 g/kg) and phytase (0, 1,500, and 3,000 FTU/kg) in a 3 × 3 factorial arrangement of treatments with 5 pens per treatment. Increasing phytase dose linearly increased BW (P < 0.001) and tibia ash (P < 0.001) and reduced feed-to-gain ratio (F:G, P < 0.001) and mortality (P < 0.05). Increasing phytase dose quadratically affected tarsometatarsus strength (P < 0.001) and tibia ash percentage (P < 0.05). Decreasing Ca concentration linearly increased BW (P < 0.001) and reduced F:G (P < 0.001), mortality (P < 0.01), and tibia ash (P < 0.05). In terms of BW (P < 0.05), F:G (P < 0.01), mortality (P < 0.05), tibia ash (P < 0.05), and tarsometatarsus strength (P < 0.01), response to phytase addition was greater for high Ca concentrations, resulting in a Ca × phytase interaction. Generally, increasing phytase dose or decreasing Ca concentration in severely low NPP diet has beneficial effect on BW, F:G, and mortality of broiler chicken. If performed in combination, performance results improve even more. Nonetheless, when phytase is supplemented in the diet, decreasing Ca concentration does not allow maximum bone strength and ash. |
| first_indexed | 2024-12-17T05:59:58Z |
| format | Article |
| id | doaj.art-44982cfc80bd468d9498527a1ef9ab95 |
| institution | Directory Open Access Journal |
| issn | 1056-6171 |
| language | English |
| last_indexed | 2024-12-17T05:59:58Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Applied Poultry Research |
| spelling | doaj.art-44982cfc80bd468d9498527a1ef9ab952022-12-21T22:00:55ZengElsevierJournal of Applied Poultry Research1056-61712020-12-01294817829Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorusH.R. Taheri0M.M. Abbasi1Corresponding author:; Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan 45371-38791, IranDepartment of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan 45371-38791, IranSummary: The effect of phytase and calcium (Ca) was investigated on performance of broiler chickens given diets severely limited in nonphytate phosphorus (NPP). A total of 550 ten-day-old broiler chickens were allocated to 10 diets from 11 to 40 d of age. There were a positive control (with adequate Ca and NPP concentration) and 9 diets (with 1.4 g NPP/kg) consisting of Ca (5.6, 4.2, and 2.8 g/kg) and phytase (0, 1,500, and 3,000 FTU/kg) in a 3 × 3 factorial arrangement of treatments with 5 pens per treatment. Increasing phytase dose linearly increased BW (P < 0.001) and tibia ash (P < 0.001) and reduced feed-to-gain ratio (F:G, P < 0.001) and mortality (P < 0.05). Increasing phytase dose quadratically affected tarsometatarsus strength (P < 0.001) and tibia ash percentage (P < 0.05). Decreasing Ca concentration linearly increased BW (P < 0.001) and reduced F:G (P < 0.001), mortality (P < 0.01), and tibia ash (P < 0.05). In terms of BW (P < 0.05), F:G (P < 0.01), mortality (P < 0.05), tibia ash (P < 0.05), and tarsometatarsus strength (P < 0.01), response to phytase addition was greater for high Ca concentrations, resulting in a Ca × phytase interaction. Generally, increasing phytase dose or decreasing Ca concentration in severely low NPP diet has beneficial effect on BW, F:G, and mortality of broiler chicken. If performed in combination, performance results improve even more. Nonetheless, when phytase is supplemented in the diet, decreasing Ca concentration does not allow maximum bone strength and ash.http://www.sciencedirect.com/science/article/pii/S1056617120300763broiler chickencalciumnonphytate phosphorusphytase |
| spellingShingle | H.R. Taheri M.M. Abbasi Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus Journal of Applied Poultry Research broiler chicken calcium nonphytate phosphorus phytase |
| title | Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus |
| title_full | Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus |
| title_fullStr | Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus |
| title_full_unstemmed | Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus |
| title_short | Effect of high-dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus |
| title_sort | effect of high dose phytase and low calcium concentration on performance of broiler chicken given diet severely limited in nonphytate phosphorus |
| topic | broiler chicken calcium nonphytate phosphorus phytase |
| url | http://www.sciencedirect.com/science/article/pii/S1056617120300763 |
| work_keys_str_mv | AT hrtaheri effectofhighdosephytaseandlowcalciumconcentrationonperformanceofbroilerchickengivendietseverelylimitedinnonphytatephosphorus AT mmabbasi effectofhighdosephytaseandlowcalciumconcentrationonperformanceofbroilerchickengivendietseverelylimitedinnonphytatephosphorus |