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 ◽  
...  

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.

2019 ◽  
Vol 3 (2) ◽  
pp. 662-675 ◽  
Author(s):  
Charmaine D Espinosa ◽  
Su A Lee ◽  
Hans H Stein

Abstract Two experiments were conducted to test the hypothesis that digestibility of amino acids (AA), gross energy (GE), acid hydrolyzed ether extract (AEE), and neutral detergent fiber (NDF), and values for metabolizable energy (ME) in low-oil distillers dried grains with solubles (DDGS) vary among suppliers. In Exp. 1, the apparent total tract digestibility (ATTD) of GE, AEE, and NDF, and concentration of ME were determined in eight sources of DDGS (sources A, B, C, D, E, G, H, and I). A corn-based basal diet and eight diets containing corn and each source of DDGS were fed to 72 barrows (initial body weight = 18.1 ± 1.3 kg) with eight pigs per diet. Feces and urine were collected for 5 d after 7 d of adaptation. The ME did not differ among the eight sources of DDGS with the exception that DDGS source E contained less (P < 0.05) ME than DDGS source D. The ATTD of GE did also not differ among the eight sources of DDGS, but ME and ATTD of GE in corn were greater (P < 0.05) than in the eight sources of DDGS. However, the ATTD of AEE in corn and the eight sources of DDGS was not different, but the ATTD of AEE in DDGS source E was greater (P < 0.05) than in DDGS source A. The ATTD of NDF in DDGS source D was also greater (P < 0.05) than in DDGS sources E, G, and H, but ATTD of NDF did not differ between corn and the eight sources of DDGS. In Exp. 2, standardized ileal digestibility (SID) of AA was determined in seven sources of DDGS (sources A, B, C, D, E, G, and H). Twenty-four barrows (initial body weight = 63.4 ± 3.4 kg) that had a T-cannula installed in the distal ileum were allotted to a two-period incomplete Latin square design with eight diets. Seven diets were formulated to contain each of the seven sources of DDGS and an N-free diet was also used. Ileal digesta were collected for 2 d after 5 d of adaptation. There were no differences between pigs fed DDGS sources A and B in SID of AA, and the SID of Lys, Met, and Trp did not differ among DDGS sources A, B, and E. However, SID of most indispensable and dispensable AA except Gly were greater (P < 0.05) in DDGS source B than in DDGS sources C, D, E, G, and H. In conclusion, variability in SID of AA, ATTD of NDF and AEE, and ME were observed among the sources of DDGS used in this experiment.


2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 85-86
Author(s):  
Diego A Rodriguez ◽  
Su A Lee ◽  
Mary B Muckey ◽  
Cassandra K Jones ◽  
Hans H Stein

Abstract Two experiments were conducted to determine the effects of extrusion on energy and nutrient digestibility in corn, wheat, and sorghum fed to growing pigs. In Exp. 1, 6 diets based on raw or extruded sources of each grain and an N-free diet were formulated. Seven barrows (14.2 ± 0.9 kg) had a T-cannula installed in the distal ileum and were allotted to a 7 × 7 Latin square. Ileal digesta were collected for 2 d after 5 d of adaptation. Results indicated that extruded grains had greater (P < 0.001) apparent ileal digestibility (AID) of starch than non-extruded grains. Extrusion increased standardized ileal digestibility (SID) of all AA except Pro in corn, but SID of AA in wheat and sorghum was not affected by extrusion (Table 1). In Exp. 2, 48 barrows (15.1 ± 3.7 kg) were allotted to 6 diets based on each of the 6 grains. Pigs were housed individually in metabolism crates and feces and urine were collected quantitatively for 5 d after 5 d of adaptation. The apparent total tract digestibility (ATTD) of GE increased by extrusion of corn or sorghum, but that was not the case for wheat (interaction, P < 0.001). The ATTD of NDF was reduced by extrusion of wheat, but not of corn or sorghum (interaction, P < 0.001). Extrusion reduced (P < 0.05) the ATTD of ADF in all grains. Values for ME were greater in extruded corn and sorghum compared with non-extruded grains, but ME in wheat was not affected by extrusion (interaction, P < 0.001). In conclusion, extrusion of corn, wheat, and sorghum increased AID of starch and SID of all indispensable AA. The ME in corn and sorghum was also increased.


Animals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 495
Author(s):  
Wenxuan Dong ◽  
Gang Zhang ◽  
Zhongchao Li ◽  
Ling Liu ◽  
Shuai Zhang ◽  
...  

This study was conducted to determine and compare digestible energy (DE) and metabolizable energy (ME) values and the apparent total tract digestibility (ATTD) of energy and nutrients in eight ingredients fed to both growing pigs and sows. Two experiments with 48 crossbred barrows or six non-pregnant sows were allotted to eight treatments in a completely randomized design or a pseudo Latin square with six replicated pigs per dietary treatment. The dietary treatments were formulated with two cereal ingredients: corn and wheat; two ingredients with a high protein level and a low fiber level (HPLF): soybean meal (SBM) and cottonseed meal (CSM); two ingredients with medium protein level and medium fiber level (MPMF): corn distiller’ dried grains with solubles (DDGS) and corn germ meal (CGM); and two ingredients with a low protein level and a high fiber level (LPHF): wheat bran (WB) and palm kernel meal (PKM), respectively. Adult sows had greater DE and ME values and ATTD of energy and nutrients when fed cereal ingredients compared with growing pigs, and had lower DE and ME contents and ATTD of energy and nutrients except for acid detergent fiber (ADF) when fed HPLF ingredients compared with growing pigs. Moreover, no differences were observed between adult sows and growing pigs in DE and ME contents and ATTD of energy and nutrients when fed MPMF and LPHF ingredients, except that adult sows showed a greater ATTD of crude protein (CP) when fed MPMF ingredients compared with growing pigs. Our results indicate that sows had a lower available energy and nutrient digestibility when fed SBM or CSM compared with growing pigs. Crude protein contents in ingredients should be considered when predicting DE and ME values in sows based on the DE and ME values measured from growing pigs.


2021 ◽  
Vol 25 (2) ◽  
pp. 157-162
Author(s):  
S. A. Bolu ◽  
O. O. Balogun

A balance trial aimed at determining the energy values of sorghum Distiller's wastes (SDW), Maize cob(MC) and shea butter waste (SBW) for barrows was conducted using a 4 X 4 Latin square cross-over experimental design. While feed intake was influenced (P<0.05) by the test feed ingredients, the weight gained was not significantly affected (P>0.05). Digestibilities of dry matter and gross energy (GE) as well as metabolizability of digestible energy (DE) were not influenced (P>0.05) influenced by the dietary treatment. The energy values (i.e GE, DE, uncorrected metabolizable energy (ME), and metabolizable energy corrected for nitrogen retention (MEn) determined for ingredients were different (P<0.05). DE values of 7.19, 6.73 and 15.54 Mj/kg DM;ME values of 5.90, 4.79 and 12.94 Mj/kg Dm were established for SDW, MC and SBW respectively. These ingredients have potentials as alternative low-energy feedstuffs in pig feeds.


1972 ◽  
Vol 52 (2) ◽  
pp. 425-428 ◽  
Author(s):  
L. G. YOUNG

Two growth trials involving a total of 36 individually fed Yorkshire gilts were conducted to compare the value of supplemental protein from soybean meal, raw soybeans, and cooked soybeans for growing pigs. Three metabolism trials were also conducted. Cooked soybeans were prepared by cooking in water for approximately 6 hr. The protein supplements were fed at a level calculated to supply the same amount of supplemental protein daily. Performance of pigs fed soybean meal or cooked soybeans was similar and superior to that of pigs fed raw soybeans as indicated by rate of gain, feed intake, and gain to feed ratio. The higher gross energy of cooked soybeans or raw soybeans did not result in increased digestible or metabolizable energy content of the diet. Protein digestibility and retention was lower for diets containing raw soybeans.


2021 ◽  
Vol 34 (1) ◽  
pp. 109-118
Author(s):  
Zhongchao Li ◽  
Zhiqian Lyu ◽  
Hu Liu ◽  
Dewen Liu ◽  
Neil Jaworski ◽  
...  

Objective: The objective of this study was to determine net energy (NE) of expeller-press (EP-RSM) and solvent-extracted rapeseed meal (SE-RSM) and to establish equations for predicting the NE in rapeseed meal (RSM) fed to growing pigs.Methods: Thirty-six barrows (initial body weight [BW], 41.1±2.2 kg) were allotted into 6 diets comprising a corn-soybean meal basal diet and 5 diets containing 19.50% RSM added at the expense of corn and soybean meal. The experiment had 6 periods and 6 replicate pigs per diet. During each period, the pigs were individually housed in metabolism crates for 16 days which included 7 days for adaption to diets. On day 8, pigs were transferred to respiration chambers and fed their respective diet at 2,000 kJ metabolizable energy (ME)/kg BW<sup>0.6</sup>/d. Feces and urine were collected, and daily heat production was measured from day 9 to 13. On days 14 and 15, the pigs were fed at 890 kJ ME/kg BW<sup>0.6</sup>/d and fasted on day 16 for evaluation of fasting heat production (FHP).Results: The FHP of pigs averaged 790 kJ/kg BW<sup>0.6</sup>/d and was not affected by the diet composition. The NE values were 10.80 and 8.45 MJ/kg DM for EP-RSM and SE-RSM, respectively. The NE value was positively correlated with gross energy (GE), digestible energy (DE), ME, and ether extract (EE). The best fit equation for NE of RSM was NE (MJ/kg DM) = 1.14×DE (MJ/kg DM)+0.46×crude protein (% of DM)–25.24 (n = 8, R<sup>2</sup> = 0.96, p<0.01). The equation NE (MJ/kg DM) = 0.22×EE (% of DM)–0.79×ash (% of DM)+14.36 (n = 8, R<sup>2</sup> = 0.77, p = 0.018) may be utilized to quickly determine the NE in RSM when DE or ME values are unavailable.Conclusion: The NE values of EP-RSM and SE-RSM were 10.80 and 8.45 MJ/kg DM. The NE value of RSM can be well predicted based on energy content (GE, DE, and ME) and proximate analysis.


1971 ◽  
Vol 51 (2) ◽  
pp. 503-510 ◽  
Author(s):  
J. P. BOWLAND

Twenty gilts and 20 barrows were fed 0, 5 or 10% ground rapeseed in diets with or without rapeseed meal (RM) and either adjusted or unadjusted for levels of digestible energy (DE) and total protein. Dietary rapeseed at a level of 10% depressed (P < 0.10) feed intake and improved (P < 0.01) feed conversion in comparison with 0% rapeseed, but did not significantly influence efficiency of DE conversion. Pigs fed rapeseed gained 0.05 to 0.11 kg/day more slowly than those fed no rapeseed, but differences were not significant. Carcass dressing percentage was lower (P < 0.05) for pigs fed 5 or 10% rapeseed in diets without RM than it was for those fed a diet with 0% rapeseed or with 5% rapeseed plus 4% RM. The former pigs also had carcass measurements that suggested leaner carcasses. Data on rapeseed composition, including amino acid values, are presented. Coefficients for DE, metabolizable energy (ME), ME corrected to N equilibrium (MEn), and digestible N (DN) at 21 kg liveweight were not influenced by diet. The DE, ME, MEn and DN per unit of feed were increased by the addition of 10% rapeseed to the diet. Rapeseed had a calculated DE of 5703 kcal/kg on a dry matter basis. The DE, ME and MEn were highly correlated (r = 0.970 to 0.997), indicating little difference in accuracy between these energy measures. Daily N retained averaged 16.8 g and was not influenced by diet. Barrows ate more, required more feed and more DE/kg gain and had poorer carcasses than gilts. The DE, ME, MEn and DN were significantly higher for barrows than for gilts. The data suggest that when 5 or 10% rape-seed is fed to growing pigs from 8 kg initial weight, a depression of approximately 2% in feed intake can be expected for each 1% of dietary rapeseed added, regardless of whether DE and protein adjustments are made. Improved feed conversion when rapeseed is fed occurs in association with the high gross energy content of the seed.


1980 ◽  
Vol 30 (1) ◽  
pp. 157-160 ◽  
Author(s):  
G. P. Savage ◽  
W. C. Smith ◽  
P. A. Briggs

ABSTRACTMicronization followed by grinding of brown-seeded sorghum increased starch availability in vitro but had no effect on proximate composition of the grain. In diets containing 70% of sorghum in ground or micronized and ground form, apparent digestibility of dry matter and nitrogen and nitrogen retention by growing pigs were improved (2·5, 5·0 and 12·2% respectively). Addition to the diet of 0*2 g polyethylene glycol per g crude protein in the sorghum fraction produced similar effects. In the ground cereal diet inclusion of polyethylene glycol increased apparent digestibility of gross energy (3·8%) and improved metabolizable energy content by 5·5%, but i n the micronized and ground cereal diet the additive had no effect.


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 ◽  
...  

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%.


Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1199
Author(s):  
Reinhard Puntigam ◽  
Julia Slama ◽  
Daniel Brugger ◽  
Karin Leitner ◽  
Karl Schedle ◽  
...  

This study investigated the effects of sorghum ensiled as whole grains with different dry matter concentrations on the apparent total tract digestibility (ATTD) of energy, crude nutrients and minerals in growing pigs. Whole grain sorghum batches with varying dry matter (DM) concentrations of 701 (S1), 738 (S2) and 809 g kg−1 (S3) due to different dates of harvest from the same arable plot, were stored in air-tight kegs (6 L) for 6 months to ensure complete fermentation. Subsequently, 9 crossbred barrows (34.6 ± 1.8 kg; (Duroc x Landrace) × Piétrain)) were used in a 3 × 3 Latin square feeding experiment. Diets were based on the respective sorghum grain silage and were supplemented with additional amino acids, minerals and vitamins to meet or exceed published feeding recommendations for growing pigs. The ATTD of gross energy, dry matter, organic matter, nitrogen-free extracts, and crude ash were higher in S1 compared to S3 treatments (p ≤ 0.05), while S2 was intermediate. Pigs fed S1 showed significantly higher ATTD of phosphorus (P) compared to all other groups while ATTD of calcium was unaffected irrespective of the feeding regime. In conclusion, growing pigs used whole grain sorghum fermented with a DM concentration of 701 g kg−1 (S1) most efficiently. In particular, the addition of inorganic P could have been reduced by 0.39 g kg−1 DM when using this silage compared to the variant with the highest DM value (809 g kg−1).


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