scholarly journals Energy determination of corn co-products fed to broiler chicks from 15 to 24 days of age, and use of composition analysis to predict nitrogen-corrected apparent metabolizable energy

2011 ◽  
Vol 90 (9) ◽  
pp. 1999-2007 ◽  
Author(s):  
S.J. Rochell ◽  
B.J. Kerr ◽  
W.A. Dozier
Keyword(s):  
Metabolizable Energy ◽  
Composition Analysis ◽  
Broiler Chicks ◽  
Apparent Metabolizable Energy ◽  
Energy Determination

Efficiency of utilization of metabolizable energy for carcass energy retention in broiler chickens fed different wheat cultivars

2001 ◽  
Vol 81 (1) ◽  
pp. 99-106 ◽  
Author(s):  
V. R. Pirgozliev ◽  
S. P. Rose ◽  
P. S. Kettlewell ◽  
M. R. Bedford
Keyword(s):  
Linear Relationship ◽  
Broiler Chickens ◽  
Water Extract ◽  
Metabolizable Energy ◽  
Broiler Chicks ◽  
Wheat Sample ◽  
Complete Diet ◽  
Apparent Metabolizable Energy ◽  
Energy Retention ◽  
Ad Libitum Intake

Six different wheat cultivar grain samples were grown in both the 1993 and 1996 harvest years, and their concentrations of nitrogen-corrected, apparent metabolizable energy (AMEn) were determined and carcass energy retentions compared when fed nutritionally complete diets for broiler chicks. The AMEn protocol involved a 14 d feeding period with growing chickens, with all excreta collected for the final 96 h. The carcass energy retention protocol involved a comparative slaughter technique in which growing chickens were given a wheat sample in a nutritionally complete diet at 90% of ad libitum intake. There was a significant (P = 0.023) linear relationship between energy retention and AMEn, although an r2 = 0.42 indicated that there was a substantial amount of unexplained variation. The ratio of energy retained per kg of additional wheat (kcal kg–1) eaten to AMEn (kcal kg–1) intake ranged from 0.49 –0.56 in the 12 wheat samples. There were no significant (P > 0.05) relationships between the proximate nutrient or polysaccharide compositions of the wheat samples and the ratio of energy retained to AME intake. However, there was a significant, (r2 = 0.40; P = 0.028) negative, linear relationship between the water extract viscosity of the wheat sample (log transformed) and this ratio. Key words: Metabolizable energy, energy retention, wheat, poultry

scholarly journals Metabolizable energy and digestible amino acids of full-fat soybean without or with protease supplementation in diets for broilers

2016 ◽  
Vol 40 (5) ◽  
pp. 565-576 ◽  
Author(s):  
Felipe Santos Dalólio ◽  
Luiz Fernando Teixeira Albino ◽  
Horácio Santiago Rostagno ◽  
Diego Ladeira da Silva ◽  
Maurílio de Lucas Xavier Júnior ◽  
...  
Keyword(s):  
Amino Acids ◽  
Broiler Chickens ◽  
Control Diet ◽  
Amino Acid Content ◽  
Metabolizable Energy ◽  
Broiler Chicks ◽  
Ileal Digestibility ◽  
Apparent Metabolizable Energy ◽  
Protein Free Diet ◽  
Digestible Amino Acids

ABSTRACT Two experiments were carried out to determine the energy values and the true ileal digestibility of amino acids of nine toasted full-fat soybeans (FFSB), without or with the addition of monocomponent protease. In the first experiment, to determine the energy values, the method of excreta collection was used with 1120 broiler chicks at 14 days old, distributed in randomized blocks in a 10x2 factorial arrangement with nine full-fat soybeans (30% included) plus a control diet (70%) without or with the addition of protease, totaling 20 treatments with 8 replicates and 7 birds per cage. In the second experiment, 1120 broiler chickens from 24 to 28 days of age were distributed in randomized blocks in a 10x2 factor arrangement, with nine full-fat soybeans (40% included) + a protein free diet (60%), without or with the addition of protease, totaling 20 treatments with 8 replicates and 7 birds per cage. Ileal digesta collection was used to determine the true digestibility coefficients and the digestible amino acid content of full-fat soybean. The average values of nitrogen-corrected apparent metabolizable energy (AMEn) and their respective metabolization coefficients (CAMEn) were 3207 kcal/kg and 62.57%, respectively. The average values of digestibility coefficients of crude protein and essential and nonessential amino acids were 86.79, 87.90 and 84.34%, respectively. The inclusion of protease improved (P<0.05) all evaluated parameters. Therefore, its use is recommended in diets containing full-fat soybeans for broiler chickens.

scholarly journals Determination of metabolizable energy value of corn with different average geometric diameters for european quails (Coturnix coturnix coturnix)

2009 ◽  
Vol 52 (4) ◽  
pp. 981-984 ◽  
Author(s):  
Marcelo José de Mello Rezende ◽  
Alessandro Figueiredo Torres ◽  
Luci Sayori Murata ◽  
José Américo Soares Garcia ◽  
Concepta Margaret McManus
Keyword(s):  
Live Weight ◽  
Metabolizable Energy ◽  
Energy Value ◽  
Coturnix Coturnix ◽  
Apparent Metabolizable Energy

Metabolizable energy (ME) of corn with different geometric diameters was determined in European quail with 26 days of age with 124 g of mean live weight, using the Total Collection of Excreta Method. One hundred and twenty five quails were divided in five treatments, five replications with five quails each, with one treatment used to determine endogenous losses. Values of Average Geometric Diameter (AGD) of the corn were 600, 800, 1000 and 1200 µm. ME of corn was not affected by AGD. Average values were 3079, 3274, 3300, 3137 Kcal/kg respectively for apparent metabolizable energy, corrected apparent metabolizable energy, true metabolizable energy, corrected true metabolizable energy.

scholarly journals Coccidia Vaccine Challenge and Exogenous Enzyme Supplementation in Broiler Chicken 1. Effect on Digesta Viscosity, Diet Energy Utilization, and Apparent Metabolizable Energy Value of Wheat

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 641
Author(s):  
Andrew Dunaway ◽  
Sunday A. Adedokun
Keyword(s):  
Metabolizable Energy ◽  
Energy Utilization ◽  
Post Challenge ◽  
Exogenous Enzyme ◽  
Randomized Design ◽  
Apparent Metabolizable Energy ◽  
Enzyme Supplementation ◽  
Digesta Viscosity ◽  
Diet Type

This study examined the effect of exogenous mixed-enzyme supplementation (xylanase, β-glucanase, and pectinase) to a corn-SBM (CS) and a wheat-CS-based (WCS) diet in birds challenged with coccidia vaccine (Coccivac B-52™). The WCS-based diet was produced by replacing 30% of the energy-yielding portions of the CS-based diet with wheat. On day 14, 448 (n = 7) Cobb by-product breeder male broilers were assigned to a 2 (diet types) × 2 (with or without enzyme supplementation) × 2 (0 or 20 × coccidia vaccine challenge; CVC) factorial arrangement of treatments in a completely randomized design for the determination of the apparent metabolizable energy (AME) value of wheat. Treatment effects on jejunum digesta viscosity and AME corrected for nitrogen (AMEn) of the diets were evaluated within each diet type as a 2 × 2 factorial arrangement of treatments, 7- and 14-day post-challenge. Seven-day post-challenge (day 21), dry matter (DM) and energy utilization, AME, and AMEn of the CS- and WCS-based diets decreased (p < 0.05) with CVC. Both AME and AMEn of wheat decreased (p < 0.05) by about a 20% in CVC-birds 7-day post-challenge. Enzyme and CVC resulted in a decrease (p < 0.05) in jejunal digesta viscosity in birds fed the CS-based diets, while there was an interaction (p < 0.05) between CVC and enzyme, with enzyme lowering (p < 0.05) the viscosity of digesta 7-day post-challenge. Results from this study showed that CVC resulted in a 20% decrease in AMEn 7-day post-challenge, while the interaction between exogenous enzyme supplementation and CVC resulted in an improvement in nitrogen utilization (~6%) in CVC birds fed the corn-SBM-based diet 7-days post challenge.

scholarly journals Date Fiber as a Constituent of Broiler Starter Diets

2000 ◽  
Vol 5 (2) ◽  
pp. 59 ◽  
Author(s):  
W. AI-Marzooki ◽  
A. AI-Halhali ◽  
R. AI-Maqbaly ◽  
A. Ritchie ◽  
K. Annamalai ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Weight Gain ◽  
Dietary Treatment ◽  
Poor Performance ◽  
Protein Digestibility ◽  
Metabolizable Energy ◽  
Control Group ◽  
Broiler Chicks ◽  
Date Syrup ◽  
Apparent Metabolizable Energy

In Oman, efforts are underway to find alternative sources of fwd to support domestic livestock. The date industry thrives in Oman and one of its by-products is date fiber, a by-product of date syrup production. Although the product contains some free sugars, an evaluation of its potential in broiler diets has never been undertaken. Therefore, we conducted an experiment to investigate the value of date fiber in broiler chick diets. The experimental diets consisted of four graded levels of date fiber: 0, 15, 30 and 45 % in a broiler-starter ration replacing corn as an energy source. The diets were isonitrogenous. There were five replicates for each of the four diets and each replicate contained six broiler chicks. As date fiber percent increased in the dietary treatment, there were linear reductions in body weight gain, calculated apparent metabolizable energy (AMEn) content, and apparent protein digestibility (P < 0.05). Poor feed utilization (i .e., reduced feed efficiency) was observed in birds fed date fiber diets compared to the control group (P < 0.05). The poor performance of birds fed date fiber may be attributed to protein and energy limitations. We conclude that date fiber has no value in growing broiler diets. However, it may have utility in diets where a stable body weight is desirable.

scholarly journals Standardized ileal digestible amino acids and apparent metabolizable energy content in defatted black soldier fly larvae meal fed to broiler chickens

2019 ◽  
Vol 99 (2) ◽  
pp. 211-217 ◽  
Author(s):  
Z.N. Mwaniki ◽  
E. Kiarie
Keyword(s):  
Amino Acids ◽  
Broiler Chickens ◽  
Energy Content ◽  
Metabolizable Energy ◽  
Broiler Chicks ◽  
Test Diet ◽  
Black Soldier Fly ◽  
Apparent Metabolizable Energy ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae

Standardized ileal digestibility (SID) of amino acids (AA) and apparent metabolizable energy corrected for nitrogen (AMEn) in defatted black soldier fly larvae meal (BSFLM) were determined in broiler chicks. A total of 180-d-old male broiler chicks (Ross 708) were fed a commercial broiler starter diet to day 13 of age. On day 14, birds were weighed and placed in cages (10 birds per cage; n = 6) and allocated one of two semi-purified cornstarch-based diets. The diets were nitrogen-free diet (NFD) for estimating endogenous AA losses and 20% crude protein test diet with BSFLM as the sole source of AA. All diets had 0.5% titanium dioxide (TiO2) as an indigestible marker and the ratio of cornstarch to sucrose and soy oil in the test diet was identical to NFD to calculate AMEn by difference method. Birds were given feed and water ad libitum. Excreta samples were collected on days 17–20 and ileal digesta on day 21. The SID of lysine, methionine, cysteine, threonine, isoleucine, and valine was 86.3%, 88.7%, 72.8%, 85.5%, 89.6%, and 88.6%, respectively. Apparent retention of gross energy in BSFLM was 64.5% ± 2.27% and AMEn was 2902 ± 101 kcal kg−1 dry matter. The data will aid in accurate incorporation of BSFLM in poultry feeding programs.

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