Metabolizable energy and amino acid digestibility of mash and pelleted diets for broilers determined under different methodologies

Roza, Lenilson F; Tavernari, F. de C.; Surek, D.; Sordi, C.; Albino, L. F. T.; Paiano, Diovani; Boiago, Marcel Manente; Petrolli, Tiago Goulart; Júnior, Anildo Cunha

doi:10.1016/j.anifeedsci.2017.11.003

Cited by 16 publications

(8 citation statements)

References 23 publications

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“…The AME and AMEn for wheats were calculated by TiO 2 marker using the following equations according to Roza et al. (2018) :

where GE is the gross energy and N is nitrogen content, which is calculated by CP (crude content) = N content × 6.25.…”

Section: Methodsmentioning

confidence: 99%

Standardized ileal digestible amino acid and metabolizable energy content of wheat from different origins and the effect of exogenous xylanase on their determination in broilers

Wang

et al. 2020

Poultry Science

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This study was conducted to determine the standardized ileal digestible amino acids ( SID AA ) and nitrogen-corrected apparent metabolizable energy ( AMEn ) contents of 6 wheats from different origins in China and incidentally to investigate the effects of exogenous xylanase addition on SID AA and AMEn determination in broiler chicks. A total of 480 chicks were divided into 48 cages of 10 birds each balanced for body weight and fed 8 types of diets in a completely randomized design (6 replicated cages per diet) from 21 to 26 d of age. The individual wheat constituted the only source of crude protein in a semi-purified experimental diet. A nitrogen-free diet was designed to estimate basal endogenous AA loss and determine the SID AA. Titanium oxide (0.3%) was used as an indigestibility marker, and nutrient digestibility and retention were determined by the substitution method. From day 24 to 26, excreta samples were collected for AMEn determination. On day 26, the birds were euthanized, and ileum contents were obtained for AA digestibility determination. Wheat from Gansu had greater ( P < 0.05) SID AA contents except Lys, Thr, Phe, and Cys, with a higher ( P < 0.001) AMEn (11.83 MJ/kg) than the other wheats. The SID content of mean indispensable amino acids and dispensable amino acids were 87.35% and 88.17%, respectively, and the average AMEn value of 6 wheats was 11.14 MJ/kg. Compared with the diet without xylanase, the added xylanase resulted in higher ( P < 0.05) SID contents of Met, Lys, Trp, Arg, Ile, Leu, Val, Gly, Asp, Glu, Pro, and Ala; the SID AA values were raised by 1.96% (mean of all AA); and the AMEn content was significantly increased (+0.87 MJ/kg) ( P < 0.05). In conclusion, origins of wheats have significant effects on SID AA and AMEn values which were positively correlated with crude protein content of wheat; exogenous xylanase addition to a wheat-based poultry diet could significantly improve SID AA and AMEn contents for broilers.

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“…The AME and AMEn for wheats were calculated by TiO 2 marker using the following equations according to Roza et al. (2018) :

where GE is the gross energy and N is nitrogen content, which is calculated by CP (crude content) = N content × 6.25.…”

Section: Methodsmentioning

confidence: 99%

Standardized ileal digestible amino acid and metabolizable energy content of wheat from different origins and the effect of exogenous xylanase on their determination in broilers

Wang

et al. 2020

Poultry Science

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“…The variability in estimating these ME values may be influenced by different factors. These factors include the methodology selected ( Farrell et al, 1991 ; West, 2018 ; Olukosi, 2021 ), excreta collection method and inert marker used ( Roza et al, 2018 ), age of the chickens ( Lessire et al, 1982 ; Sibbald, 1982 ; Bertechini et al, 2019 ), the composition of reference diet ( Veluri and Olukosi, 2020 ), time of adaptation to assay diets, and species and strain ( Spratt and Leeson, 1987 ; Bourdillon et al, 1990 ).…”

Section: Discussionmentioning

confidence: 99%

“…Total collection takes more time and errors in recording excreta or feed intake can affect accuracy. The results of the partial collection analysis are influenced by the accuracy of laboratory analyses to recover the indigestible marker ( Roza et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Influence of extruded soybean meal with varying fat and oleic acid content on nitrogen-corrected apparent metabolizable energy in broilers

Ali,

Joseph,

Alfaro-Wisaquillo

et al. 2024

Poultry Science

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“…As regards comparison between methodologies (Experiment 1), our data showed that when an indigestible marker was involved in ATTDP-m, comparable P digestibility values were obtained with ATTDP-tc. The full recovery of markers can be limiting when using such methodologies [ 30 , 31 , 32 ]. This was not the case in our study, where the average recovery of TiO 2 in excreta in all pooled samples from Experiment 1 was 104 ± 11.0% (data not shown).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Phosphorus Digestibility from Monocalcium and Dicalcium Phosphate Sources and Comparison between Total Tract and Prececal Digestibility Standard Methods in Broilers

Cambra‐López

Moset

López

et al. 2021

Animals

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The objective of this study was to compare the total tract (total excreta and marker) and prececal methodologies to determine phosphorus (P) digestibility and to evaluate its variation as a function of the physicochemical characteristics of the inorganic phosphate used (monocalcium, MCP and dicalcium, DCP) from different commercial sources. A total of 176 1-day-old male broilers were used in two digestibility experiments. In Experiment 1, one MCP and one DCP were incorporated in the basal diet at two levels. In Experiment 2, MCP and DCP from three commercial sources were incorporated to the basal diet at one level. Physicochemical characteristics of inorganic phosphates were examined, as well. Additionally, bone mineralization and growth performance traits were investigated in both trials. The digestibility of MCP ranged from 75.2 to 87.4% and from 80.5 to 86.6% for DCP amongst methodologies, but differences between total tract and preceal methodologies were not statistically significant. Particle size, surface area, degree of crystallinity and impurities varied amongst commercial sources. The P digestibility of the three tested commercial sources of MCP was 79.6% (MCP1), 70.2% (MCP2) and 65.6% (MCP3); p > 0.05. The P digestibility of the 3 tested commercial sources of DCP was 80.1% (DCP1), 77.4% (DCP2) and 71.4% (DCP3); p > 0.05.

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Metabolizable energy and amino acid digestibility of mash and pelleted diets for broilers determined under different methodologies

Cited by 16 publications

References 23 publications

Standardized ileal digestible amino acid and metabolizable energy content of wheat from different origins and the effect of exogenous xylanase on their determination in broilers

Standardized ileal digestible amino acid and metabolizable energy content of wheat from different origins and the effect of exogenous xylanase on their determination in broilers

Influence of extruded soybean meal with varying fat and oleic acid content on nitrogen-corrected apparent metabolizable energy in broilers

Evaluation of Phosphorus Digestibility from Monocalcium and Dicalcium Phosphate Sources and Comparison between Total Tract and Prececal Digestibility Standard Methods in Broilers

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