scholarly journals Apparent metabolizable energy of cereal grains for broiler chickens is influenced by age

2021 ◽  
pp. 101288
Author(s):  
M.M. Khalil ◽  
M.R. Abdollahi ◽  
F. Zaefarian ◽  
P.V. Chrystal ◽  
V. Ravindran
Keyword(s):  
Broiler Chickens ◽  
Metabolizable Energy ◽  
Cereal Grains ◽  
Apparent Metabolizable Energy

NUTRITIVE VALUE OF SORGHUM GRAIN FOR BROILER CHICKENS

1982 ◽  
Vol 62 (3) ◽  
pp. 869-875 ◽  
Author(s):  
H. W. HULAN ◽  
F. G. PROUDFOOT
Keyword(s):  
Broiler Chickens ◽  
Nutritive Value ◽  
Metabolizable Energy ◽  
Partial Replacement ◽  
Feed Conversion ◽  
Live Body Weight ◽  
Apparent Metabolizable Energy ◽  
Poultry Diets ◽  
Sorghum Grain ◽  
Finisher Diets

Sorghum grain (SG) contained more crude protein (103.5 g/kg) and ash (17.0 g/kg) but less crude fiber (17.7 g/kg) and total lipid (22.6 g/kg) than corn. The SG contained 0.37% ± 0.02 tannin, had a higher apparent metabolizable energy value than corn or wheat and contained all of the amino acids considered essential for chickens at levels in general between those of corn and wheat. Two experiments were carried out to ascertain the nutritive value of SG as a partial replacement for corn and wheat in practical poultry diets using 320 male and 320 female Cobb chicks in each. Starter (finisher) diets fed from 0–21 days (22–42 days) contained the following levels of SG: 15 (19); 30 (39); 45 (58)%. The diets were isoenergic and isonitrogenous. The inclusion of up to 45% SG in the starter diet and up to 58% in the finisher diet had no significant effect on mortality, live body weight, feed conversion or percentage of grade A carcasses. Key words: Broiler chickens, sorghum grain, milo, diets

scholarly journals Effect of different phytases on the performance, nutrient retention and tibia composition in broiler chickens

2013 ◽  
Vol 56 (1) ◽  
pp. 1028-1038 ◽  
Author(s):  
A. Ptak ◽  
D. Józefiak ◽  
B. Kierończyk ◽  
M. Rawski ◽  
K. Żyła ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Nutrient Retention ◽  
Nutrient Utilization ◽  
Positive Control ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Feed Conversion ◽  
E Coli ◽  
Performance Response ◽  
Apparent Metabolizable Energy

Abstract. The effect of different phytases on the performance response, nutrient utilization and tibia characteristics of chickens was investigated. The five pelleted diets were the following: positive control (PC) with added monocalcium phosphate; negative control (NC) formulated with equivalency values of phytase for Ca and digestible P; and three further diets where different phytases were individually added to the NC diet at 500 FTU/kg. The phytases were derived either from Aspergillus (phytase I), or E. coli (phytases II and III). Compared to PC, the performance parameters, as well as apparent metabolizable energy (AMEn), mineral retention, bone breaking force and tibia mineral content were suppressed by the reduction of dietary Ca and digestible P. All phytases enhanced the overall body weight gains and feed conversion ratio in comparison with NC, but none outperformed PC. Only phytase II improved AMEn compared to NC and PC group. However only phytase I outperformed NC group in terms of mineral retention and P retention was higher than phytase II and III. No significant differences were observed in fat digestibility and N retention. Bone strength among phytases did not differ and all improved this parameter compared to the NC diet. However, even though all phytases enhanced tibia minerals content, the improvement was less pronounced with phytase III. Moreover, the differences in all analysed tibia minerals between phytase III and II were significant suggesting that even among 6-phytases derived from and expressed in the same organism, different efficacy or mode of action can occur.

scholarly journals Effects of Fermentation on Standardized Ileal Digestibility of Amino Acids and Apparent Metabolizable Energy in Rapeseed Meal Fed to Broiler Chickens

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1774
Author(s):  
Zhengke Wu ◽  
Jiao Liu ◽  
Jiang Chen ◽  
Shoaib Ahmed Pirzado ◽  
Yang Li ◽  
...  
Keyword(s):  
Amino Acids ◽  
Broiler Chickens ◽  
Nutritive Value ◽  
Animal Feed ◽  
Basal Diet ◽  
Rapeseed Meal ◽  
Metabolizable Energy ◽  
Isoleucine Leucine ◽  
Ileal Digestibility ◽  
Apparent Metabolizable Energy

Rapeseed meal (RSM) is a common protein ingredient in animal diets, while the proportion of RSM in diets is limited because of its anti-nutritional factors. Fermentation based on mixed microbial strains appears to be a suitable approach to improve the nutritive value of rapeseed meal in animal feed. In this study, we evaluated the effects of fermentation on the apparent metabolizable energy (AME) values and standardized ileal digestibility (SID) of amino acids in RSM fed broilers. The AME and nitrogen-corrected apparent metabolizable energy (AMEn) values of RSM and fermented rapeseed meal (FRSM) were determined by the substitution method, with RSM and FRSM proportionally replacing the energy-yielding components of the basal diet by 30%. Results show that fermentation improved AME and AMEn of RSM from 7.44 to 8.51 MJ/kg and from 7.17 to 8.26 MJ/kg, respectively. In the second experiment, two experimental diets were formulated, with RSM and FRSM being the sole sources of amino acids. A nitrogen-free diet (NFD) was also formulated to determine endogenous amino acids losses (EAAL). Feeding on FRSM resulted in higher (p < 0.05) apparent ileal digestibility (AID) and SID of alanine, valine, isoleucine, leucine, tyrosine, lysine, arginine, and phenylalanine. No significant differences between RSM and FRSM were found for AID and SID of asparagine, histidine, threonine, serine, glutamine, praline, glycine, methionine, and cystine. FRSM had greater AMEn values and SID of amino acids compared to RSM, therefore, FRSM was nutritionally superior to RSM in broiler diets.

Metabolizable energy values of corn and wheat middlings in broiler chickens

2019 ◽  
Vol 99 (4) ◽  
pp. 905-913 ◽  
Author(s):  
Andrew Dunaway ◽  
Sunday A. Adedokun
Keyword(s):  
Soybean Meal ◽  
Difference Method ◽  
Broiler Chickens ◽  
Dry Matter ◽  
Metabolizable Energy ◽  
The Other ◽  
N Utilization ◽  
Apparent Metabolizable Energy ◽  
Wheat Middlings ◽  
The Difference

Two experiments were conducted to evaluate adaptation length (AL) and composition of reference diets on nitrogen (N)-corrected apparent metabolizable energy (AMEn) in 22-d-old broilers. Birds were allocated to nine treatments (n = 6) consisting of wheat – soybean meal (SBM) (reference diet), corn–wheat–SBM, and wheat middlings (WM)–wheat–SBM (exp. 1), or oats–SBM (reference diet), corn–oats–SBM, and WM–oats–SBM (exp. 2) in conjunction with three AL (12, 8, and 4 d) in a factorial arrangement of treatments (3 × 3). Dry matter (DM), N, energy (En) utilization, and AMEn of corn and WM were determined using the difference method. In exp. 1, birds on the WM–wheat–SBM-based diet had the lowest (P < 0.05) DM, N, and En utilization, as well as AMEn compared with the other two diets. Additionally, AMEn for corn was higher (P < 0.05) compared with that of WM. In exp. 2, N utilization in birds on the corn–oats–SBM-based diet was lower (P < 0.05) compared with birds on the oats–SBM-based diet; however, AMEn of corn and WM was not different. In both experiments, AL was not significantly different. Based on these results, the composition of the reference diet could influence AMEn values of corn and WM in 22-d-old broilers.

scholarly journals Erratum to “Apparent Metabolizable Energy of Glycerin for Broiler Chickens”

2008 ◽  
Vol 87 (4) ◽  
pp. 812
Author(s):  
W.A. Dozier ◽  
B.J. Kerr ◽  
A. Corzo ◽  
M.T. Kidd ◽  
T.E. Weber ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Metabolizable Energy ◽  
Apparent Metabolizable Energy

scholarly journals Apparent Metabolizable Energy of Glycerin for Broiler Chickens

2008 ◽  
Vol 87 (2) ◽  
pp. 317-322 ◽  
Author(s):  
W.A. Dozier ◽  
B.J. Kerr ◽  
A. Corzo ◽  
M.T. Kidd ◽  
T.E. Weber ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Metabolizable Energy ◽  
Apparent Metabolizable Energy

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.

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