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Approaches and challenges for evaluating phosphorus sources for poultry.
Markus Rodehutscord
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The article was published on 2009-01-01 and is currently open access. It has received 23 citations till now. The article focuses on the topics: Phosphorus & Phytase.read more
Citations
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Journal ArticleDOI
Hydrolysis of phytate and formation of inositol phosphate isomers without or with supplemented phytases in different segments of the digestive tract of broilers.
TL;DR: The hydrolytic cleavage of the first phosphate group is not the only limiting step in phytate degradation in broilers and their gut microbiota to hydrolyse InsP6 in low-P diets.
Journal ArticleDOI
A note on sampling digesta from the ileum of broilers in phosphorus digestibility studies
TL;DR: The responded in P prececal digestibility to increments in dietary P concentration is linear over a wider range of dietary P than the response in P retention, suggesting that P excretion with urine is very low and unaffected by P intake when the birds are supplied with P below their requirement.
Journal ArticleDOI
Comparison of retention and prececal digestibility measurements in evaluating mineral phosphorus sources in broilers
TL;DR: It is concluded that both retention and pc digestibility can be used for evaluating mineral P sources in broilers based on a regression approach and further studies on the relevance of broilers' age in P evaluation are suggested.
Journal ArticleDOI
Measurement of true ileal digestibility and total tract retention of phosphorus in corn and canola meal for broiler chickens
TL;DR: The regression method can be successfully used to measure true P digestibility of low and high P feed ingredients and that both true ileal digestibility and retention coefficients are suitable to assess P availability in broilers.
Journal ArticleDOI
Determination and estimation of phosphorus availability in growing poultry and their historical development
Y. Shastak,Markus Rodehutscord +1 more
TL;DR: The variability of phosphorus availability in poultry feeds is primarily caused by differences in the contents of phytate and intrinsic or exogenous phytase and by differences between no... as mentioned in this paper.
References
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Journal ArticleDOI
Response of broilers to graded levels of microbial phytase added to maize-soyabean-meal-based diets containing three levels of non-phytate phosphorus
TL;DR: The results show that 939 U microbial phytase is equivalent to 1 g P from defluorinated phosphate in broilers fed on maize-soyabean-meal diets.
Journal ArticleDOI
The efficacy of phytase in corn-soybean meal-based diets for laying hens
TL;DR: growth, production performances, and tibia parameters were significantly improved by dietary supplementation of the negative control diet with either phytase or MCP-P, indicating that the P requirements of the laying hens were met throughout the production period even at the lowest level of supplementation.
Journal ArticleDOI
The development of feedstuff retainable phosphorus values for broilers
KL Leske,Craig N. Coon +1 more
TL;DR: Phosphorus retention values for feed ingredients, accounting for NPP and phytate phosphorus, and total retainable phosphorus requirements are needed to formulate diets that meet the phosphorus requirements of poultry but that do not result in excessive amounts of phosphorus in poultry excreta.
Journal ArticleDOI
Comparative studies with three-week-old chickens, turkeys, ducks, and quails on the response in phosphorus utilization to a supplementation of monobasic calcium phosphate
Markus Rodehutscord,A. Dieckmann +1 more
TL;DR: Differences in P availability exist between poultry species for plant and mineral P sources and these differences correlate well with the differences in the feed/gain ratio.
Journal ArticleDOI
Bioavailability of phosphorus in various phosphate sources using body weight and toe ash as response criteria.
TL;DR: The relative bioavailability values of P from seven sources were determined using male chickens fed a basal corn-soybean meal diet with varying levels of test and standard phosphates from 0 to 3 wk of age to determine the bioavailability of various test phosphates relative to the reference standard.
Related Papers (5)
Total phosphorus, phytate-phosphorus and phytase activity in plant feedstuffs
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The bio-availability of phosphorus from feed phosphates for broilers as influenced by bio-assay method, dietary Ca-level and feed form
G. De Groote,G. Huyghebaert +1 more