Interactive effects of calcium, vitamin D3, and exogenous phytase on phosphorus utilization in male broiler chickens from 1 to 21 days post-hatch: A meta-analysis approach

Faridi, A.; Shahir, Mohammad Hossein; Baradaran, N.

doi:10.1016/j.anifeedsci.2022.115525

Cited by 5 publications

(4 citation statements)

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“…Exogenous enzymes, including phytase influence on performance, generally correlate with increases in nutrient digestibility [83,95,99], as it is renowned for breaking phytate complexes to liberate P and other dietary essential nutrients, which in turn increase productive performance in birds with diets minimal in avP [100] or both Ca and avP [13]. The current global study thus confirms, as pointed out in the meta-analysis by Letourneau-Montminy et al [45], Kermani et al [44], and Shi et al [78], whose analyses illustrated the positive effect of phytase on P utilization by broilers through improvement in growth performance, particularly BWG and FCR, with the most remarkable improvements realized in P-and Ca-deficient diets [101][102][103]. This claim, according to Tamim, et al [104] and Gifford and Clydesdale [105], is accounted for by the less insoluble Ca-phytate complex formation in the gut owing to the lower level of Ca in the diet and the lower pH of the gut, which maintains a modest Ca-P balance in the diet.…”

Section: Impact Of Exogenous Phytase On Growth Performancesupporting

confidence: 85%

“…More precisely, supplemental phytase effects on broiler chicken growth performance, bone strength, and mineralization have been completed in P and Ca inadequate diets with variable influence. To ascertain exogenous phytase global effects, metaanalyses focused on non-phytate phosphorus, phosphorus retention, and interactive effects of Ca, vitamin D3, and Eimeria infections have previously been explored [42][43][44][45][46]. Yet, as the genetic selection of broiler chickens, new generations of EP, and new studies continue to proliferate in this research domain, evaluating P utilization in current broiler chickens' strains, dietary P source, and physiological stage is imperative.…”

Section: Discussionmentioning

confidence: 99%

“…Compared to that reported in individual studies, when the results of independent studies are conflicting, MA arrives at a better estimate of the population effect size. Its use in exogenous phytase (EP) studies in broilers has focused on non-phytate phosphorus, phosphorus retention, interactive effects of Ca, vitamin D3, and Eimeria infections [42][43][44][45][46]. As the genetic selection of broiler chickens, new generations of EP, and new studies continue to proliferate in this research domain, evaluating P utilization in current broiler chickens' strains, dietary P source, and physiological stage is imperative.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Unlocking Phytate with Phytase: A Meta-Analytic View of Meat-type Chicken Muscle Growth and Bone Mineralization Potential

Nuamah,

Okon,

Jeong

et al. 2024

Preprint

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The inclusion of exogenous phytase in broiler P and Ca deficient diets in response to heightened concerns over excessive P excretion into the environment over the years has remarkably been documented. However, responses among these studies have been inconsistent because of the several factors affecting P utilization. For this reason, a systematic review with meta-analysis of results from forty-one studies published from 2000 to February 2024 was evaluated to: 1) quantitatively summarize the size of phytase effect on growth performance, bone strength, and mineralization in broilers fed P and Ca deficient basal diets and 2) estimate and explore the heterogeneity of the effect sizes of outcomes using sub-group and meta-regression analyses. The quality of the included studies was assessed using the Cochrane Collaboration’s SYRCLE Risk of Bias checklists for animal studies. Additionally, applying the random-effects models, Hedges’ g effect size of supplementation with phytase was calculated using the R software to determine the standardized mean difference (SMD) at a 95% confidence interval. Sub-group analysis and meta-regression further explored heterogeneity (PSMD ≤ 0.05, I2 > 50%, n ≥ 10). The meta-analysis showed that supplemental phytase increases ADFI and BWG and reduces FCR at each time point of growth (< 0.0001). Additionally, phytase supplementation consistently increased tibia ash, P and Ca, and bone strength (< 0.0001) of broilers fed P and Ca deficient diets. Results of the subgroup and meta-regression analyses showed that age and strain of broiler, dietary P source, and duration of phytase exposure significantly influence the effect size of phytase on growth and bone parameters. In conclusion, phytase can attenuate the effect of reducing dietary available phosphorus and calcium and improve ADFI, BWG, and reduced FCR, especially when added to starter diets. It further enhances bone ash, bone mineralization, and bone-breaking strength of broilers, even though the effects of bone ash and strength can be maximized in the starter phase of growth. However, the effect sizes of phytase were related to the age and strain of the broiler, dietary P source, and duration of phytase exposure rather than the dosage.

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Section: Impact Of Exogenous Phytase On Growth Performancesupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Unlocking Phytate with Phytase: A Meta-Analytic View of Meat-type Chicken Muscle Growth and Bone Mineralization Potential

Nuamah,

Okon,

Jeong

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Supplementation of broiler diets with microbial phytase and vitamin D 3 has been shown to improve calcium, copper, phosphorus and zinc utilization, and consequently reduce the excretion of these minerals in the faeces [1]. The level of Ca in the diet may also affect the utilization of phytic acid-P through the formation of insoluble Ca-phytate and/or reduction of phytase activity [2].…”

Section: Introductionmentioning

confidence: 99%

Ileal Phosphorus Digestibility in Broiler Chickens Fed Low Calcium and Phosphorus Diets Supplemented with Phytase and Cholecalciferol

Imuetinyan,

James Ien-oa

2024

Act Sci VetSci

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A total of 125-day-old Arbor Acre broiler chickens fed broiler starter till day 20 were used to investigate the effect of low calcium and phosphorus diets supplemented with phytase and cholecalciferol. On day 21, the chicks were weighed and allotted to 5 treatments with 5 replicates of 5 birds each in a randomized complete block design. Between days 25 and 27 post-hatch, samples of fresh excreta were collected once daily from each cage. On day 28, the birds were euthanized by carbon (IV) oxide asphyxiation and dissected to obtain and digesta from the 2/3rd of the ileum. All data were analysed using the GLM procedure in SAS. The treatments comprised a positive control (PC, T1) without cottonseed meal (CSM) and four CSM-based semi-purified diets; negative control (NC, T2), NC + vitamin D3-10,000 IU/Kg (T3), NC + phytase (T4) and NC + phytase + vitamin D3 (T5). Titanium dioxide (5 g/Kg) was included as marker. Digestible P was significantly (P < 0.05) improved for birds on T5 when compared with the other four diets.Digestible P in T4 did not differ (P > 0.05) from the birds on T1. Ileal digestible phosphorus (IDP) significantly (P < 0.05) reduced with a corresponding increase in the percentage apparent phosphorus digestibility (APD) in T3, while T4 and T5 did not differ from T1 in the two parameters. It can be concluded that low calcium and phosphorus diets supplemented with phytase and vitamin D3 on cottonseed meal improved digestible P in broiler chickens.

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Interactive effects of calcium, phosphorus, and exogenous phytase on growth performance and bone ash in broilers under Eimeria or necrotic enteritis infections: a systemic review and meta-analysis

Shi,

Wang,

Kim

2024

Journal of Applied Poultry Research

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Interactive effects of calcium, vitamin D3, and exogenous phytase on phosphorus utilization in male broiler chickens from 1 to 21 days post-hatch: A meta-analysis approach

Cited by 5 publications

References 106 publications

Unlocking Phytate with Phytase: A Meta-Analytic View of Meat-type Chicken Muscle Growth and Bone Mineralization Potential

Unlocking Phytate with Phytase: A Meta-Analytic View of Meat-type Chicken Muscle Growth and Bone Mineralization Potential

Ileal Phosphorus Digestibility in Broiler Chickens Fed Low Calcium and Phosphorus Diets Supplemented with Phytase and Cholecalciferol

Interactive effects of calcium, phosphorus, and exogenous phytase on growth performance and bone ash in broilers under Eimeria or necrotic enteritis infections: a systemic review and meta-analysis

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