Effect of different levels of calcium and phosphorus and their interaction on the performance of young broilers

Hamdi, Manel; López-Vergé, Sergi; Manzanilla, Edgar García; Barroeta, A. C.; Pérez, J. F.

doi:10.3382/ps/pev177

Cited by 55 publications

(60 citation statements)

References 35 publications

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“…Additionally, Ca forms insoluble complexes with phytate (Angel et al, 2002) and in the lumen interacts with inorganic phosphorus resulting in Ca-ortophosphate (Plumstead et al, 2008). Those complexes have a negative impact on the birds' performance due to the reduced solubility and availability of the P (Hamdi et al, 2015). High Ca diets have been associated with an increase of crop pH in chickens (Shafey et al, 1991) and in an higher attachment of L. salivarius to the GIT mucus of chickens when different Lactobacillus strains were studied in vitro (Craven and Williams, 1998), however in our study L. taiwanensis was the most abundant species in mucosa samples (Figures 3C,D and Table S5).…”

Section: Resultsmentioning

confidence: 99%

“…Digesta samples belonging to diets C and H, that were both supplemented with Ca, were significantly different from samples derived from Ca-free diets E and F ( p < 0.05; Table S4). It is known that higher doses of Ca in the diets can lead to an increase of the pH (Ptak et al, 2015) and low precaecal P digestibility (Adeola and Walk, 2013; Hamdi et al, 2015), which could possibly influence the presence or absence of some OTUs. An effect of P supplementation was observed in the microbial communities of the ileum mucosa.…”

Section: Resultsmentioning

confidence: 99%

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Insights into Broilers' Gut Microbiota Fed with Phosphorus, Calcium, and Phytase Supplemented Diets

et al. 2016

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Phytase supplementation in broiler diets is a common practice to improve phosphorus (P) availability and to reduce P loss by excretion. An enhanced P availability, and its concomitant supplementation with calcium (Ca), can affect the structure of the microbial community in the digestive tract of broiler chickens. Here, we aim to distinguish the effects of mineral P, Ca, and phytase on the composition of microbial communities present in the content and the mucosa layer of the gastrointestinal tract (GIT) of broiler chickens.Significant differences were observed between digesta and mucosa samples for the GIT sections studied (p = 0.001). The analyses of 56 individual birds showed a high microbial composition variability within the replicates of the same diet. The average similarity within replicates of digesta and mucosa samples across all diets ranged from 29 to 82% in crop, 19–49% in ileum, and 17–39% in caeca. Broilers fed with a diet only supplemented with Ca had the lowest body weight gain and feed conversion values while diets supplemented with P showed the best performance results. An effect of each diet on crop mucosa samples was observed, however, similar results were not obtained from digesta samples. Microbial communities colonizing the ileum mucosa samples were affected by P supplementation. Caeca-derived samples showed the highest microbial diversity when compared to the other GIT sections and the most prominent phylotypes were related to genus Faecalibacterium and Pseudoflavonifractor, known for their influence on gut health and as butyrate producers. Lower microbial diversity in crop digesta was linked to lower growth performance of birds fed with a diet only supplemented with Ca. Each diet affected microbial communities within individual sections, however, no diet showed a comprehensive effect across all GIT sections, which can primarily be attributed to the great variability among replicates. The substantial community differences between digesta and mucosa derived samples indicate that both habitats have to be considered when the influence of diet on the gut microbiota, broiler growth performance, and animal health is investigated.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Insights into Broilers' Gut Microbiota Fed with Phosphorus, Calcium, and Phytase Supplemented Diets

et al. 2016

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“…However, greater NPP levels, from 4.0 to 4.5 g/kg, increased tibia weight and tibia ash (mg/tibia). Hamdi et al (2015a) concluded that a level of 3.8 g NPP /kg improved the growth of chicks and increased bone mineralization on d 14, but no further increases were observed with 4.5 g NPP/kg in diets including the addition of phytase. The lower required levels observed for this experiment as compared to the actual results may be due to the effect of phytase inclusion in the diet and also the duration of the experiment.…”

Section: Discussionmentioning

confidence: 99%

“…In the present study the levels of Ca were formulated to remain constant, which increased the Ca:P ratios as lower were the NPP values. Hamdi et al (2015a) also described lower performance with the use of diets with high levels of Ca (9 g/kg) containing limiting values of NPP (2.5 g/kg) for broiler at 14 d of age as compared to lower levels of Ca (5-7 g/kg). Al Masri (1995) showed that greater dietary Ca levels and its ratio to P may decrease P absorption.…”

Section: Discussionmentioning

confidence: 99%

“…Phosphorus is also a nutrient that linearly reduces growth performance and bone characteristics when levels below P requirements are applied (Hamdi et al, 2015a). Based on this property, different methodologies exist to measure in vivo bio-availability of P or to compare P sources including bio-assays based on growth, bone weight and bone ash weight (Ravindran et al, 1995;Lima et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of how different feed phosphates affect performance, bone mineralization and phosphorus retention in broilers

Hamdi

Solà-Oriol

Franco-Rosselló

et al. 2017

Span. j. agric. res.

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The objective of this work was to evaluate the comparative P bio-avalability of different sources of phosphate based on their effects on animal performance, bones mineralization and mineral retention in broilers. To achieve this goal, two experiments were conducted. In Experiment 1, twenty diets were prepared including five different phosphorus sources, either mono-calcium phosphate (MCP) or 4 different batches of di-calcium phosphate, to supplement non phytic P (NPP) levels at 3.0, 3.5, 4.0 and 4.5 g/kg in the diets. In Experiment 2, three treatments were used: the low MCP diet was deficient in NPP (3.1 g/kg for the starter phase and 2.8 g/kg for the grower phase); the high MCP diet and the high TCP (tri-calcium phosphate) diet included adequate levels of NPP (4.4-4.7 g/kg for the starter phase and 4.2-4.3 g/kg for the grower phase). Phytase was not added to experimental diets. Results of Exp. 1 indicated that an increase of NPP in the diet from 3.0 to 4.0 g/ kg increased weight gain and feed intake between d 1 and d 21 (Trial 1). Alternatively, tibia weight and ash percentage at d 21 responded up to the level of 4.5 g/kg and showed significant difference with birds of the 4.0 g/kg NPP group. In Trial 2, chickens fed with the high MCP and TCP had improved growth performances and bone mineralization. No differences were observed on the P availability among different mineral P sources. A level of 4.5 g/kg, NPP is recommended when phytase is not included to maximize both performance and bone mineralization in broiler chickens up to d 21.Additional keywords: mineralization; digestibility; calcium; phosphorus sources. Abbreviation used: BW (body weight); CP (crude protein); DCP (di-calcium phosphate); DM (dry matter); FI (feed intake); G: F (gain feed ratio); MCP (mono-calcium phosphate); ME (metabolic energy); NPP (non phytic phosphorus); TCP (tri-calcium phosphate); WG (weight gain).

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Investigating the effect of sesame meal replacement for soybean meal in diets with different levels of calcium and phytase enzyme in broiler chickens

Aziz‐Aliabadi,

Amirzadeh‐Garou,

Hassanabadi

et al. 2024

Veterinary Medicine & Sci

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BackgroundAs a major part of the cost of broiler farms is related to their feed, breeders are looking for diets at a reasonable price. One of these affordable ingredients is sesame meal (SM), which can be used to replace soybean meal (SBM) in diets.ObjectivesThis study aims to investigate the effect of replacing SBM with SM in diets with different levels of calcium (Ca) and phytase (Phy) during the grower (11–24 days), finisher (25–42 days) and whole phases (11–42 days) on the growth performance, carcass characteristics and blood serum parameters of broiler chickens.MethodsA total of 600 1‐day‐old Ross 308 broiler male chicks were randomly dispensed to 12 dietary treatments with five replicates (10 birds per replicate) based on a completely randomized design in a factorial arrangement of 3 × 2 × 2 with 3 levels of SM (0%, 10% and 20%), 2 levels of Ca (standard (0.87% and 0.79% for grower and finisher phases, respectively) and 0.2% higher than the standard amount) and 2 levels of Phy (0 and 700 FTU/kg diet).ResultsDuring the study, the significant effects of SM, Ca and Phy on the daily average body weight gain (DAWG) and daily feed intake (DFI) were observed, whereas for the feed conversion ratio, only the effect of SM was significant (p < 0.05). During the finisher and whole phases, the SM and Ca levels influenced the DAWG and DFI, whereas the interaction between Phy and Ca was also significant for DAWG (p < 0.05). The main effects of SM and Ca on the relative weights of breast, heart and liver were significant (p < 0.05). Application of 20% of SM significantly reduced serum Ca concentration (p < 0.05).ConclusionGenerally, the inclusion of more than 10% of SM in the broilers diet is not recommended. In addition, the use of Phy and Ca levels 0.2% higher than standard in broilers diet could improve the birds’ performance.

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Effect of different levels of calcium and phosphorus and their interaction on the performance of young broilers

Cited by 55 publications

References 35 publications

Insights into Broilers' Gut Microbiota Fed with Phosphorus, Calcium, and Phytase Supplemented Diets

Insights into Broilers' Gut Microbiota Fed with Phosphorus, Calcium, and Phytase Supplemented Diets

Comparison of how different feed phosphates affect performance, bone mineralization and phosphorus retention in broilers

Investigating the effect of sesame meal replacement for soybean meal in diets with different levels of calcium and phytase enzyme in broiler chickens

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