scholarly journals Correlation between chemical composition, EHGE and TME of corn for ducks

2021 ◽  
Vol 50 (5) ◽  
Author(s):  
Y.J. Chen ◽  
Z.Y. Wang ◽  
C.G. Du ◽  
Z.L. Qi ◽  
Y.Q. Guo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Metabolizable Energy ◽  
Chemical Compositions ◽  
Regression Equations ◽  
Enzymatic Hydrolysate ◽  
Gross Energy ◽  
The Mean ◽  
Cherry Valley Duck ◽  
Small Intestinal ◽  
Total Starch

Correlations between chemical composition, enzymatic hydrolysate gross energy (EHGE), and true metabolizable energy (TME) of corn for ducks were investigated. Twenty-two corn samples were collected from various regions in 11 provinces of China. The crude protein (CP), ether extract (EE), neutral detergent fibre (NDF), Ash, gross energy (GE), dry matter (DM), amylopectin (AP), amylose (AM), total starch (TS), and AP/AM were determined for each sample. Five of the samples of corn were chosen at the mean, mean ± 1 standard deviation (SD), and mean ± 2 SD based on AP/AM. The EHGE of these samples was analysed using the pepsin-artificial small intestinal fluid enzymatic method. These five samples were also force-fed to male Cherry Valley ducks to assay their TME. Finally, correlation analyses were performed, and regression equations were established. Ash content, GE, and TS were highly related to EHGE. Univariate prediction equations were EHGE = 11.8566Ash-0.0421 (P <0.05), EHGE = 0.1535GE1.5642 (P <0.05), and EHGE = 0.1020TS1.1561 (P <0.05). The total starch, AP/AM, and ash of the chemical compositions were highly related to TME. The corresponding univariate regression equations were TME = 21.9355TS-0.0910 (P <0.05), TME = 15.6590AP/AM-0.0559 (P <0.05), and TME = 15.0778Ash0.0442 (P <0.05). The mean EHGE was equivalent to 78.5% of TME, but their correlation coefficient was low. In conclusion, chemical composition was predictive of EHGE and TME of corn samples for ducks, but the correlation of EHGE and TME was low Keywords: Cherry Valley duck, amylopectin, amylose, true metabolizable energy

scholarly journals Prediction of metabolizable energy values in poultry offal meal for broiler chickens

2010 ◽  
Vol 39 (10) ◽  
pp. 2237-2245 ◽  
Author(s):  
Edney Pereira da Silva ◽  
Carlos Bôa-Viagem Rabello ◽  
Luiz Fernando Teixeira Albino ◽  
Jorge Victor Ludke ◽  
Michele Bernardino de Lima ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Broiler Chickens ◽  
Crude Protein ◽  
Matter Content ◽  
Metabolizable Energy ◽  
Mineral Matter ◽  
Ether Extract ◽  
High Fat ◽  
Collection Method ◽  
Gross Energy

This research aimed at generating and evaluating prediction equations to estimate metabolizable energy values in poultry offal meal. The used information refers to values of apparent and true metabolizable energy corrected for nitrogen balance (AMEn and TMEn) and for chemical composition of poultry offal meal. The literature review only included published papers on poultry offal meal developed in Brazil, and that had AMEn and TMEn values obtained by the total excreta collection method from growing broiler chickens and the chemical composition in crude protein (CP), ether extract (EE), mineral matter (MM), gross energy (GE), calcium (Ca) and phosphorus (P). The general equation obtained to estimate AMEn values of poultry offal meal was: AMEn = -2315.69 + 31.4439(CP) + 29.7697(MM) + 0.7689(GE) - 49.3611(Ca), R² = 72%. For meals with high fat contents (higher than 15%) and low mineral matter contents (lower than 10%), it is suggest the use of the equation AMEn = + 3245.07 + 46.8428(EE), R² = 76%, and for meals with high mineral matter content (higher than 10%), it is suggest the equations AMEn = 4059.15 - 440.397(P), R² = 82%. To estimate values of TMEn, it is suggested for meals with high mineral matter content the equation: TMEn = 5092.57 - 115.647(MM), R² = 78%, and for those with low contents of this component, the option is the equation: TMEn = 3617.83 - 15.7988(CP) - 18.2323(EE) - 96.3884(MM) + 0.4874(GE), R² = 76%.

Rice bran as a supplement to elephant grass for cattle and buffalo in Indonesia: 2. Carcass development, energy accretion and its effect on feed efficiency: 2. Carcass development, energy accretion and its effect on feed efficiency

1983 ◽  
Vol 100 (3) ◽  
pp. 717-722
Author(s):  
J. B. Moran
Keyword(s):  
Weight Gain ◽  
Rice Bran ◽  
Feed Efficiency ◽  
Live Weight ◽  
Metabolizable Energy ◽  
Regression Equations ◽  
Elephant Grass ◽  
Live Weight Gain ◽  
Fat Depots ◽  
Gross Energy

SUMMARYIndonesian Ongole and swamp buffalo bulls that had previously been given 0, 1·2, 2·4, 3·6 or 4·8 kg/head/day rice bran plus ad libitum elephant grass were slaughtered after 161 days feeding. Abdominal depot fat, full and empty reticulo-rumen and cold carcass weights were recorded. Various carcass variables were measured and the 9–10–11 rib joints were dissected into bone, muscle and fat. Carcass gross energy was calculated from rib-fat content using previously determined regression equations. Feed efficiency was expressed in terms of the ratios of live-weight gain or carcass-energy accretion to metabolizable energy available for growth.Increasing supplementation with rice bran resulted in larger abdominal fat depots, higher dressing percentages, increased carcass fatness (and hence carcass gross energy) and improved rib muscle to bone ratios. Carcass conformation was unaffected by dietary treatment. When feed efficiency was expressed per unit live-weight gain, there was a decrease with increasing rice-bran feeding. Feed efficiency, expressed per unit of carcass energy accretion, improved with rice-bran supplementation and was generally higher in buffalo than in Ongole bulls. Dietary and species differences in feed efficiency could be primarily explained by the differential energy cost of deposition of, and the availability of energy from, carcass protein and lipid.

The metabolizable energy content for the chicken of maize and sorghum grain hybrids grown at several geographical regions

1976 ◽  
Vol 16 (82) ◽  
pp. 699 ◽  
Author(s):  
JK Connor ◽  
AR Neill ◽  
KM Barram
Keyword(s):  
Chemical Composition ◽  
Energy Content ◽  
Metabolizable Energy ◽  
Maize Hybrids ◽  
Geographical Regions ◽  
Sorghum Grains ◽  
Commercial Broiler ◽  
The Mean ◽  
Different Strains ◽  
Sorghum Grain

Metabolizable energy assays using Australorp chickens were carried out on sorghum and maize hybrids grown in different regions in Queensland and harvested in different years. Relationships between metabolizable energy and the chemical composition of the grains were examined. Some comparisons also were made between the energy metabolized by different strains of chickens. The mean nitrogen-corrected metabolizable energy values and standard deviations for all maize and sorghum grains were 3770 � 154 (n = 48) and 3750 � 239 (n = 39) kcal per kg dry matter, respectively. There were significant differences in metabolizable energy values between locations and years of harvest for both grains. Significant differences were seen between sorghum hybrids, but not between maize hybrids. The interactions, hybrid x region and hybrid x year, also were significant for sorghum. Correlations between metabolizable energy and chemical composition of the grains were not sufficiently high to enable metabolizable energy to be predicted with the accuracy necessary for practical application. Chickens from a White Leghorn and two commercial broiler strains gave similar metabolizable energy values to those obtained with the Australorp chickens.

scholarly journals Energy values of crude glycerin for broilers

2020 ◽  
Vol 72 (6) ◽  
pp. 2348-2354
Author(s):  
C. de Souza ◽  
J. Broch ◽  
C. Souza ◽  
L. Wachholz ◽  
T.L. Kohler ◽  
...  
Keyword(s):  
Nitrogen Balance ◽  
Polynomial Regression ◽  
Metabolizable Energy ◽  
Crude Glycerin ◽  
Regression Equations ◽  
Mean Values ◽  
Linear Effect ◽  
Apparent Metabolizable Energy ◽  
Randomized Experimental Design ◽  
Gross Energy

ABSTRACT The energetic values of crude glycerin (CG) were determined for broilers at different ages using the method proposed by Matterson and by polynomial regressions. Two trials were performed with broilers from 11 to 21 and from 31 to 41 days of age. The birds were distributed in a completely randomized experimental design with a reference ration (RR), without CG, and three ration tests with replacement of 5%, 10%, and 15% of RR by CG. The metabolizable energy values were calculated by the Matterson method, and the apparent metabolizable energy (AME) values were used in polynomial regression analysis. The mean values of AME, apparent corrected for nitrogen balance (AMEn), metabolizable coefficient of gross energy (CAMEB), and corrected for nitrogen balance (CAMEBn) of CG, for the phase from 11 to 21 days by the Matterson method were 10.08 MJ kg-1, 10.04 MJ kg-1, 67.06%, and 66.74%, respectively. The inclusion of CG presented an increasing linear effect for CAMEB and CAMEBn in this period. From 31 to 41 days, these values were 10.38 MJ kg-1, 10.27 MJ kg-1, 69.02%, and 62.24%, respectively. The predicted AMEn value through the polynomial regression equations was 10.49 MJ kg-1 and 10.18 MJ kg-1, respectively. According to the equations proposed by Matterson, the crude glycerin EMAn values for broilers from 11 to 21 and 31 to 41 days of age were 10.04 MJ kg-1 and 10.26 MJ kg-1, respectively. According to Adeola's method the AMEn values were 10.49 and 10.20 MJ kg-1 for each phase.

scholarly journals Physicochemical properties and energy content of yellow dent corn from different climatic origins in growing pigs

2020 ◽  
Vol 33 (11) ◽  
pp. 1787-1796 ◽  
Author(s):  
Wenxuan Dong ◽  
Juntao Li ◽  
Zhongchao Li ◽  
Shuo Zhang ◽  
Xiaozhen Li ◽  
...  
Keyword(s):  
Energy Content ◽  
Latin Square ◽  
Dietary Treatment ◽  
Growing Pigs ◽  
Metabolizable Energy ◽  
Southwestern China ◽  
Chemical Compositions ◽  
Ether Extract ◽  
Dent Corn ◽  
Gross Energy

Objective: The objective of this study was to determine the digestible energy (DE) and metabolizable energy (ME) of yellow dent corn sourced from different meteorological origins fed to growing pigs and develop equations to predict the DE and ME of yellow dent corn from southwestern China.Methods: Sixty crossbred barrows were allotted to 20 treatments in a triplicate 20×2 incomplete Latin square design with 3 replicated pigs per dietary treatment during 2 consecutive periods. Each period lasted for 12 days, and total feces and urine during the last 5 days of each period were collected to calculate the energy contents.Results: On dry matter (DM) basis, the DE and ME in 20 corn grain samples ranged from 15.38 to 16.78 MJ/kg and from 14.93 to 16.16 MJ/kg, respectively. Selected best-fit prediction equations for DE and ME (MJ/kg DM basis) for yellow dent corn (n = 16) sourced from southwestern China were as follows: DE = 28.58–(0.12×% hemicellulose)+(0.35×% ether extract)–(0.83×MJ/kg gross energy)+(0.20×% crude protein)+(0.49×% ash); ME = 30.42– (0.11×% hemicellulose)+(0.31×% ether extract)–(0.81×MJ/kg gross energy).Conclusion: Our results indicated that the chemical compositions, but not the meteorological conditions or physical characteristics could explain the variation of energy contents in yellow dent corn sourced from southwestern China fed to growing pigs.

A study of the effect of supplementing a concentrate diet with roughages of different quality on the performance of Friesian steers. I. Voluntary food intake and food utilization

1970 ◽  
Vol 75 (2) ◽  
pp. 327-335 ◽  
Author(s):  
T. A. McCullough
Keyword(s):  
Dry Matter ◽  
Nitrogen Retention ◽  
Live Weight ◽  
Metabolizable Energy ◽  
Food Utilization ◽  
Stages Of Growth ◽  
Gross Energy ◽  
The Mean ◽  
Metabolizable Energy Intake

SUMMARYConcentrate diets supplemented with 5, 20 and 40% of a high- and a low-quality hay were given ad libitum to British Friesian steers from 9 weeks of age to slaughter. The intake of dry matter and metabolizable energy was studied over weight ranges from 91 to 363 kg live weight. The quality of hay did not significantly affect the drymatter intake at any of the weight ranges studied. From 91 to 182 kg live weight the daily dry-matter intake decreased as the proportion of hay in the diet increased. Over the weight range from 182 to 272 kg live weight, intake was maximum at the 20% level of hay supplementation, while from 272 to 363 kg live weight, intake increased with increasing levels of hay in the diet. The supplementation of high-quality hay significantly increased the intake of metabolizable energy by animals weighing 91–182 kg. Increasing proportions of hay in the diet significantly affected the metabolizable energy intake at all stages of growth studied.At 18 and 36 weeks of age digestibility and N balance studies were carried out. The metabolizable energy expressed as a percentage of the gross energy and the mean retention time of the diets were significantly affected by the age of animal, quality of the hay and the level of hay supplementation. Nitrogen retention was also affected by the age of the animal but not by the quality of the hay.The relationships between the voluntary intake of dry matter and the metabolizable energy of the diet expressed as a percentage of the gross energy, for different stages of growth, are also presented.The change in the digestibility and the mean time of retention of the diets in the digestive tract with age and the effect of this on the point where physical regulation to intake gives way to physiological regulation are discussed.

The digestible energy content of some tropical forages

1964 ◽  
Vol 63 (3) ◽  
pp. 319-321 ◽  
Author(s):  
M. H. Butterworth
Keyword(s):  
Energy Content ◽  
Mean Value ◽  
Regression Equations ◽  
Digestible Energy ◽  
Gross Energy ◽  
The Mean ◽  
Tropical Forages

1. The content of gross and digestible energy of twenty-four forages grown in Trinidad was determined using samples of food and faeces from previously described digestibility trials.2. The content of gross energy of the forages ranged from 4-13 to 5-02 kcal./g. and that of digestible energy, from 2-23 to 3-20 kcal./g. The corresponding regression equations could be used for the prediction of digestible energy.4. The calorific equivalent of TDN was calculated in each case and the mean value was found to be 2114 kcal./lb. Highly significant differences in this parameter existed among diets.

scholarly journals Evaluation of Nitrogen-Corrected Apparent Metabolizable Energy and Standardized Ileal Amino Acid Digestibility of Different Sources of Rice and Rice Milling Byproducts in Broilers

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1894
Author(s):  
Kun Xie ◽  
Xi He ◽  
De-Xing Hou ◽  
Bingkun Zhang ◽  
Zehe Song
Keyword(s):  
Amino Acid ◽  
Chemical Composition ◽  
Starch Content ◽  
Ash Content ◽  
Metabolizable Energy ◽  
Regression Equations ◽  
Apparent Metabolizable Energy ◽  
Rice Milling ◽  
Different Origins ◽  
Different Sources

Rice, broken rice (BR), and full-fat rice bran (FFRB) from six different origins were analyzed for their chemical composition, nitrogen-corrected apparent metabolized energy (AMEn), and standardized amino acid digestibility (SIAAD) in 14-day-old and 28-day-old Arbor Acres broilers. Results showed broilers fed with rice and BR had a similar AMEn regardless of the rice and BR having different CP, EE, NDF, ADF, and ash content. FFRB containing significantly different CP, EE, NDF, ADFm and starch presented variable AMEn (p < 0.05), suggesting that starch content in rice and its byproducts contributed most to the AMEn of broilers. The regression equation of AMEn = 14.312 − (0.198 × NDF) and AMEn = 6.491 + (0.103 × Starch) were feasible to integrally predict AMEn of broilers fed to rice and its byproducts. Moreover, 28-day-old broilers had higher SIAAD than 14-day-old ones. The SIAAD of rice were higher than BR and FFRB except for Met, Cys, Thr, and Tyr in 14-day-old broilers (p < 0.05), and the SIAAD of His, Asp, and Ser in BR were higher than FFRB (p < 0.05). In 28-day-old broilers, the SIAAD of Leu, Trp, Asp, Gly, and Pro of rice were still higher than BR and FFRB (p < 0.05), but BR and FFRB had no significant differences (p > 0.05). The regression equations to estimate the SIAAD of Thr, Lys, and Met were: Met = 81.46 + (0.578 × CP), Thr = 0.863 + (6.311 × CP), and Trp = 102.883 − (1.77 × CP), indicating that CP content in rice and its byproducts was likely a major factor for prediction of SIAAD.

Evaluating poultry feedstuffs in terms of their metabolizable energy content and chemical composition

1975 ◽  
Vol 15 (77) ◽  
pp. 773 ◽  
Author(s):  
N Guirguis
Keyword(s):  
Chemical Composition ◽  
Energy Content ◽  
Basal Diet ◽  
Prediction Equation ◽  
Accurate Estimate ◽  
Metabolizable Energy ◽  
Broiler Chicks ◽  
Feed Ingredients ◽  
The Mean

The metabolizable energy values (ME) of 16 feed ingredients available in Australia were determined with broiler chicks of both sexes. The chickens were fed test diets in which the feed ingredients replaced dextrose in a basal diet. The mean coefficient of variation was low in each determination of ME (range 0.78 to 1.20, mean 0.94 per cent). Sex had no significant effect on the ME value of most feedstuffs with the exception of oats, where ME values were significantly higher for female than for male chicks (P < 0.05). The ME values calculated from the chemical composition of feed ingredients by means of the equations of Sibbald et al; Carpenter and Clegg; and Bolton were considerably higher than that obtained by chick assay. On the other hand ME values of cereals predicted by means of Titus's equation were similar to those obtained in this experiment and to biologically determined values of ME published in the literature. ME values of protein concentrates varied considerably when estimated either by chick assay or by chemical composition. Titus's prediction equation was considered to provide a reasonably accurate estimate of the ME value of a ration where information is available only of the chemical composition of the feed ingredients.

Sign in / Sign up

Export Citation Format

Share Document