Metabolizable energy of corn hybrids for broiler chickens at different ages

Kato, Reinaldo Kanji; Bertechini, Antônio Gilberto; Fassani, Édison José; Brito, Jerônimo Ávito Gonçalves de; Castro, Solange de Faria

doi:10.1590/s1413-70542011000600024

Cited by 12 publications

(13 citation statements)

References 10 publications

(16 reference statements)

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“…This decrease was followed by the stabilisation of AMEn values with advancing age, a finding that is similar to that which occurred with GOIL and GSP in the present work. This difference suggests that the younger birds have a higher ability to utilise glycerine as an energy source, which is in contrast to that observed by Kato et al (2011) with corn. It is known that birds in later stages of development have a higher digestion capacity for nutrients (Nitsan et al, 2007).…”

Section: Discussioncontrasting

confidence: 61%

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The energy value of biodiesel glycerine products fed to broilers at different ages

Lima

Rodrigues

Alvarenga

et al. 2012

Animal Physiology Nutrition

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The objective of this study was to determine the apparent metabolisable energy corrected for nitrogen balance (AMEn) of some products containing glycerine from soybean oil (GOIL), a mixture of frying oil and lard (GMIX) and a semi-purified process (GSP) in broilers of different ages (10, 20, 30 and 40 days post-hatching), using two methodologies. In trial 1, the basal diets were replaced with 100 g/kg of each studied glycerine product and the diets were supplied ad libitum. Three hundred broilers were used in five replicates, with five, four, three and three animals per cage in each age group, respectively. The AMEn was calculated for each experimental unit. In trial 2, dietary treatments included the addition of glycerine at 0, 40, 80 or 120 g/kg for each crude glycerine product, with 900 broilers in six replicates, using the same number of animals per cage as described in trial 1. Depending on the experimental unit, the feeding was restricted in 88%, 92%, 96% and 100% of estimated intake according to the Cobb guide. The AMEn was determined using linear regression between the feed intake and the AMEn of each diet. In both trials, the total excreta collection method was used. Because of the chemical composition, GMIX was not considered crude glycerine. The mean AMEn values of the products were 20.55 MJ/kg, 15.80 MJ/kg and 15.05 MJ/kg for GMIX, GSP and GOIL, respectively. There was a linear decrease (p < 0.01) in the AMEn values with the increasing age of the broilers. Numerically, it was observed that the AMEn values decreased until 28-30 day post-hatching and then remained constant until the finishing phase. It is concluded that products containing glycerine can be used as an energy source for broilers, but that AMEn values can vary according to age. Younger broilers have a higher capacity of energy utilisation from these feedstuffs.

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Section: Discussioncontrasting

confidence: 61%

“…With regards to the ages of broilers, studies have shown that there are differences between young and adult birds (Nitsan et al., 2007; Kato et al., 2011). According to the authors, these differences occur because of the quantity of digestive enzymes and the developmental stage of the digestive tract.…”

Section: Introductionmentioning

confidence: 99%

The energy value of biodiesel glycerine products fed to broilers at different ages

Lima

Rodrigues

Alvarenga

et al. 2012

Animal Physiology Nutrition

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“…The AMEn values were 3508, 3363, 3287 kcal kg −1 DM for the CC, OCI, and OCL, respectively. The AMEn values for organic corn samples were much lower than values that have been reported for composite corn sample 3664 kcal kg −1 DM (NRC 1994) and range of six samples (3560-3573 kcal kg −1 DM) (Kato et al 2011). The OSBML sample had higher AR of GE (85.7%, P = 0.003) than either CSBM (75.0%) or OSBMI (75.8%).…”

Section: Resultscontrasting

confidence: 66%

Standardized ileal digestibility of amino acids and apparent metabolizable energy in corn and soybean meal for organic broiler chicken production in Ontario

Leung

Kiarie

2020

Can. J. Anim. Sci.

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Standardized (SID) digestibility of amino acids (AA) and apparent metabolizable energy (AMEn) in samples of organic corn and soybean meal (SBM) were determined. Conventional corn (CC) and SBM (CSBM) samples were tested for comparison. A total of 560, 14 d old male broiler chickens (Cobb 500) were weighed, placed in cages (10 birds/cage) and allocated to 7 (n=8) semi-purified wheat starch-based diets. Diets were: 1) CC, 2) imported organic corn (OCI), 3) local organic corn (OCL), 4) CSBM, 5) imported organic SBM (OSBMI), 6) local organic SBM (OSBML) and 7) nitrogen-free wheat starch (NFD). Only a few differences were observed on SID of AA; SID of lysine was lower (P=0.002) in organic corn samples relative to CC and SID of methionine was lower (P=0.002) in OSBML sample relative to CSBM and OSBMI samples. The AMEn of CC was higher (P<0.01) than that of organic corn samples. The AMEn of OSBML was higher (P<0.001) than for CSBM and OSBMI, however, the value for OSBMI was higher (P<0.001) than for CSBM. In conclusions, the utilization of amino acids in conventional and organic feedstuffs were comparable, however, differences in energy utilization warrant considerations in organic broiler feed formulation.

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“…Low-quality grains showed more damage, more problems such as fragmented, broken, and grains infected by beetles, but little difference in density. The results of physical composition and grain moisture affected the corn chemical and energy content, as demonstrated by Rodrigues et al (2014), Costa et al (2015), and Hruby (2015), as corn hybrids and broiler age of determination can affect the energy content, similar to the observed in the experiment conducted by Kato et al (2011).…”

Section: Discussionsupporting

confidence: 60%

Prediction of apparent metabolizable energy and metabolizable energy corrected for nitrogen of corn according to physical classification of the grain

Rodrigues¹,

Stringhini

Tanure

et al. 2018

R. Bras. Zootec.

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The objective of this study was to develop an equation to determine the apparent metabolizable energy (AME) and metabolizable energy corrected for nitrogen balance (AMEn) using a physical-based classification of corn. A total of 5,055 samples were taken from bulk cargo trucks, over a five-year period. The parameters studied were the variables related to the physical characteristics of grains. The density of maize was evaluated, and AME and AMEn were calculated. The average value for AME was 3,375 kcal/kg, and two groups were formed of high quality and low quality for all samples. Stepwise regression analysis was then carried out using grain quality to estimate AME and AMEn, and the validation of the equations was carried out with 6,490 independent samples. The average value for density was 767.7 kg/m 3. The multiple regressions used to estimate AME and AMEn as a function of humidity, density, and physical composition of corn kernels showed that moisture was included for AME, but not for AMEn. The equations presented high coefficients of determination (R 2) for AME (0.994) and AMEn (0.987). The discriminant analyses correctly classified 98% of the high-quality samples and 96.69% of low-quality samples, so the error was smaller than the expected. The calculated equations were shown to be good at discriminating between samples of high and low quality of corn according to its physical composition, and the most important variables for separation between groups were damaged grain fraction, impurities, burnt, and soft. The correlation between calculated (independent samples) and estimated metabolizable energy and AMEn were, respectively, 0.9942 and 0.9859. The corn energy values can be estimated based on physical evaluation of the grain.

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Metabolizable energy of corn hybrids for broiler chickens at different ages

Cited by 12 publications

References 10 publications

The energy value of biodiesel glycerine products fed to broilers at different ages

The energy value of biodiesel glycerine products fed to broilers at different ages

Standardized ileal digestibility of amino acids and apparent metabolizable energy in corn and soybean meal for organic broiler chicken production in Ontario

Prediction of apparent metabolizable energy and metabolizable energy corrected for nitrogen of corn according to physical classification of the grain

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