European reference method for the<i>in vivo</i>determination of metabolisable energy with adult cockerels: Reproducibility, effect of food intake and comparison with individual laboratory methods

Bourdillon, A.; Carré, Bernard; Conan, L.; Duperray, Joël; Huyghebaert, G.; Leclercq, B.; Lessire, Michel; McNab, J. M.; Wiseman, J.

doi:10.1080/00071669008417287

Cited by 102 publications

(43 citation statements)

References 6 publications

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“…Digestive balance experiment For the birds assigned to AMEn and digestibility measurements, a digestive balance experiment was conducted from day 27 to day 31 using the total collection method described by Bourdillon et al (1990a), modified for the feeding period (55 instead of 79 h). Total excreta were collected daily and immediately frozen.…”

Section: Bird Managementmentioning

confidence: 99%

“…'Apparent' means that there is no correction for endogenous losses. A correction for endogenous losses does not show any interest when a correction to zero nitrogen retention is applied, because in such a condition, the value of endogenous losses becomes very low and negligible, especially in ad libitum feeding condition (Bourdillon et al, 1990a).…”

Section: Introductionmentioning

confidence: 99%

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Prediction of metabolisable energy value of broiler diets and water excretion from dietary chemical analyses

Carré

Lessire

Juin³

2013

Animal

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Thirty various pelleted diets were given to broilers (8/diet) for in vivo measurements of dietary metabolisable energy (ME) value and digestibilities of proteins, lipids, starch and sugars from day 27 to day 31, with ad libitum feeding and total collection of excreta. Water excretion was also measured. Amino acid formulation of diets was done on the basis of ratios to crude proteins. Mean in vivo apparent ME values corrected to zero nitrogen retention (AMEn) were always lower than the AMEn values calculated for adult cockerels using predicting equations from literature based on the chemical analyses of diets. The difference between mean in vivo AMEn values and these calculated AMEn values increased linearly with increasing amount of wheat in diets (P 5 0.0001). Mean digestibilities of proteins, lipids and starch were negatively related to wheat introduction (P 5 0.0001). The correlations between mean in vivo AMEn values and diet analytical parameters were the highest with fibre-related parameters, such as water-insoluble cell-walls (WICW) (r 5 20.91) or Real Applied Viscosity (RAV) (r 5 20.77). Thirteen multiple regression equations relating mean in vivo AMEn values to dietary analytical data were calculated, with R 2 values ranging from 0.859 to 0.966 (P 5 0.0001). The highest R 2 values were obtained when the RAV parameter was included in independent variables. The direct regression equations obtained with available components (proteins, lipids, starch, sucrose and oligosaccharides) and the indirect regression equations obtained with WICW and ash parameters showed similar R 2 values. Direct or indirect theoretical equations predicting AMEn values were established using the overall mean in vivo digestibility values. The principle of indirect equations was based on the assumption that WICW and ashes act as diluters. Addition of RAV or wheat content in variables improved the accuracy of theoretical equations. Efficiencies of theoretical equations for predicting AMEn values were almost the same as those of multiple regression equations. Water excretion was expressed either as the water content of excreta (EWC), the ratio of water excretion to feed intake (WIR) or the residual value from the regression equation relating water excretion to feed intake (RWE). The best regression predicting EWC was based on sucrose, fermentable sugars (lactose 1 oligosaccharides) and chloride variables, with positive coefficients. The best equations predicting WIR or RWE contained the sugar and chloride variables, with positive coefficients. Other variables appearing in these equations were AMEn or starch with negative coefficients, WICW, 'cell-wall-retained water', RAV or potassium with positive coefficients.

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Section: Bird Managementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prediction of metabolisable energy value of broiler diets and water excretion from dietary chemical analyses

Carré

Lessire

Juin³

2013

Animal

Self Cite

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“…Feed ingredients were ground (in a hammer mill, 6 mm of grill size), mixed with basal diets and given in mash form to birds. Determination of AME of the experimental diets was made following the European reference method (Bourdillon et al, 1990). The droppings were dried in a forced-draught oven at 80°C to constant weight.…”

Section: Apparent Metabolisable Energy Determinationmentioning

confidence: 99%

A comparison of the prediction of apparent metabolisable energy content of starchy grains and cereal by-products for poultry from its chemical components, in vitro analysis or near-infrared reflectance spectroscopy

Losada¹,

García-Rebollar²,

Cachaldora³

et al. 2009

Span. j. agric. res.

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Regression models including chemical composition, in vitro digestibility and near infrared reflectance spectroscopy (NIRS) were compared in order to predict the energy value of several feed ingredients for poultry. The nitrogen-corrected apparent metabolisable energy content (AMEn) in cockerels and its proportion on total gross energy (AMEn/GE) were determined in 94 batches from six starchy grains and six cereal byproducts. Two preliminary trials were also designed to adapt in vitro methods for prediction of in vivo energy values for poultry. Mean concentrations of AMEn of the ingredient studied ranged from 2,464 to 3,595 kcal kg ResumenComparación de la predicción de la concentración en energía metabolizable aparente de granos ricos en almidón y subproductos de cereales para aves a partir de componentes químicos, análisis in vitro o espectroscopía de reflectancia en el infrarojo En este trabajo se compararon varios modelos de regresión basados en parámetros de composición química, digestibilidad in vitro y en la espectroscopía de reflectancia en el infrarrojo cercano (NIRS) al objeto de predecir el valor energético de varios ingredientes alimenticios para aves. La concentración en energía metabolizable aparente corregida por nitrógeno (EMAn) en gallos adultos y su proporción sobre energía bruta (EMAn/EB) se determinaron en 94 partidas de seis concentrados de almidón y en seis subproductos de cereales. Dos ensayos preliminares fueron realizados para adaptar los métodos in vitro a los valores energéticos in vivo obtenidos en aves. Las concentraciones medias de EMAn de los ingredientes estudiados oscilaron entre 2.464 y 3.595 kcal kg -1 MS y las de EMAn/EB entre 53,7 y 80,0%. El modelo más preciso de predicción de los valores de EMAn y EMAn/EB fue el basado en ecuaciones NIRS (R 2 cv = 0,823 y 0,861, respectivamente). El mejor predictor químico de estos valores energéticos fue la concentración en FND de los ingredientes (R 2 = 0,616 y 0,736, respectivamente). La inclusión adicional de los contenidos en extracto etéreo y cenizas en el modelo EMAn y los de almidón y extracto etéreo en el de EMAn/EB permitieron incrementar los coeficientes de determinación hasta 0,791 y 0,839, respectivamente. Un modelo incluyendo los efectos lineales y cuadráticos de la digestibilidad de la materia orgánica in vitro (dMOIV) dio lugar a una predicción similar de los valores de EMAn/EB (R 2 = 0,833). Sin embargo, la predicción de EMAn a partir de dMOIV fue peor (R 2 = 0,62), puesto que las variaciones entre partidas de la concentración en EB (desde 4.225 hasta 5.896 kcal kg -1 MS) estuvieron escasamente relacionadas con los valores de digestibilidad in vitro. Palabras clave adicionales: concentración energética, eficacia energética, gallos adultos, modelos de predicción, NIRS.

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“…The MEn of processed JPSM was determined using a modified conventional 4-day total collection procedure of Bourdillon et al (1990). The MEn value was corrected to zero nitrogen balance using a factor of 8.22 times the nitrogen retained in the body (Hill and Anderson, 1958) …”

Section: Apparent Metabolizable Energy (Men)mentioning

confidence: 99%

Evaluation of the nutritional value of soaked-boiled-fermented Java plum (Syzygium cumini) seed meal for poultry

Mutetikka¹

2016

Afr. J. Agric. Res.

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Chemical analysis, apparent metabolizable energy (MEn), and one feeding trial were conducted to evaluate the nutritional value of Java plum seeds (JPS) that had been subjected to a combination of soaking, boiling, and fermentation (SBF). Five broiler starter diets were formulated with the processed Java plum seed meal ( .5%, and 4.90 and 12.5%, respectively. Liver, heart, and pancreas weights relative to body weight were not significantly (P ˃ 0.05) affected. However, caecum, gizzard, and intestine weights increased (R 2 ˃ 0.800), while the heart weight decreased (R 2 = 0.772) with increasing JPSM in the diet. At 80 and 320 g/kg JPSM inclusion, weights of caecum, intestine, and gizzard increased by 48.5 and 68.2%, 18.8 and 43.5%, and 9.55 and 19.2%, respectively. Inclusion of JPSM in chick diets adversely (P < 0.05) affected nitrogen retention (NR), nitrogen digestibility (ND), dry matter digestibility (DMD), and excreta water content (EWC). At 320 g/kg JPSM inclusion, NR, ND, DMD, and EWC were depressed by 30.8, 12.6, 0.42, and 2.45%, respectively. No mortality was recorded at 320 g/kg JPSM inclusion. The SBF did not improve the nutritional value of JPS for poultry production.

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European reference method for thein vivodetermination of metabolisable energy with adult cockerels: Reproducibility, effect of food intake and comparison with individual laboratory methods

Cited by 102 publications

References 6 publications

Prediction of metabolisable energy value of broiler diets and water excretion from dietary chemical analyses

Prediction of metabolisable energy value of broiler diets and water excretion from dietary chemical analyses

A comparison of the prediction of apparent metabolisable energy content of starchy grains and cereal by-products for poultry from its chemical components, in vitro analysis or near-infrared reflectance spectroscopy

Evaluation of the nutritional value of soaked-boiled-fermented Java plum (Syzygium cumini) seed meal for poultry

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