Nutritional value of 15 corn gluten meals for growing pigs: chemical composition, energy content and amino acid digestibility

Nutritional value of cereal grains varies greatly, and is currently estimated foremost by measuring density, whereas prediction based on chemical composition might be more useful. Thus, 16 samples of wheat were evaluated for density, chemical composition, and digestibility in growing pigs. The chemical evaluation included analyses for crude protein (CP), amino acids, neutral detergent fibre (NDF), acid detergent fibre (ADF), starch, and monomer sugars in non-starch polysaccharides (NSP). Digestible energy (DE) content was determined with growing pigs (barrows; 40.8 kg ± 5.3). Density ranged from 57.8 to 77.6 kg hL−1, CP concentration ranged from 13.0 to 18.1%, NDF concentration ranged from 12.9 to 25.0%, NSP concentration ranged from 10.5 to 16.6%, xylose concentration ranged from 4.3 to 6.5%, and DE contentranged from 3701 to 4050 kcal kg−1 Results of chemical analyses were expressed on a dry matter basis. Of the characteristics, xylose had the highest correlation with DE (r = −0.78; P < 0.001), and thus was the best single indicator for DE content (R2 = 0.61; P < 0.001), followed by total NSP (R2 = 0.54), and CP (R2 = 0.49). Density did not predict DE content as well (R2 = 0.43). Using two chemical characteristics, CP and NDF together resulted in the best prediction of DE content (R2 = 0.75; P < 0.001). The results indicate that prediction of nutritional value is more accurate based on chemical characteristics than based on density. Key words: Wheat, digestible energy, growing pig, non-starch polysaccharide

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Predicting corn digestible and metabolizable energy content from its chemical composition in growing pigs

Journal of Animal Science and Biotechnology ◽

10.1186/2049-1891-5-11 ◽

2014 ◽

Vol 5 (1) ◽

Cited By ~ 24

Author(s):

Quanfeng Li ◽

Jianjun Zang ◽

Dewen Liu ◽

Xiangshu Piao ◽

Changhua Lai ◽

...

Keyword(s):

Chemical Composition ◽

Energy Content ◽

Growing Pigs ◽

Metabolizable Energy

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Net energy content of rice bran, defatted rice bran, corn gluten feed, and corn germ meal fed to growing pigs using indirect calorimetry1

Journal of Animal Science ◽

10.1093/jas/sky098 ◽

2018 ◽

Vol 96 (5) ◽

pp. 1877-1888 ◽

Cited By ~ 5

Author(s):

Zhiqian Lyu ◽

Yakui Li ◽

Hu Liu ◽

Enkai Li ◽

Peili Li ◽

...

Keyword(s):

Rice Bran ◽

Energy Content ◽

Corn Germ ◽

Growing Pigs ◽

Net Energy ◽

Defatted Rice Bran ◽

Corn Gluten ◽

Corn Gluten Feed ◽

Gluten Feed

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Digestible energy contents and apparent ileal amino acid digestibilities in regular or partial mechanically dehulled canola meal samples fed to growing pigs

Canadian Journal of Animal Science ◽

10.4141/a97-114 ◽

1998 ◽

Vol 78 (4) ◽

pp. 641-648 ◽

Cited By ~ 21

Author(s):

C. F. M. de Lange ◽

V. M. Gabert ◽

D. Gillis ◽

J. F. Patience

Keyword(s):

Amino Acid ◽

Energy Content ◽

Growing Pigs ◽

Canola Meal ◽

Digestible Energy ◽

Ileal Digestibility ◽

High Fiber ◽

Processing Plants ◽

Key Words Amino Acid ◽

Negative Relationships

A study was carried out to determine the influence of partial mechanical tail-end dehulling on apparent ileal amino acid (AA) digestibilities and digestible energy content in canola meal (CM) samples for growing pigs. Twenty Landrace × Yorkshire barrows, with an initial body weight of 35 kg, were fitted with a simple T-cannula at the distal ileum. Digestibilities were determined in 12 experimental diets with observations from five pigs per diet. Five batches of regular CM were obtained from five different crushing plants in Western Canada. A fraction of these batches was partially dehulled. The regular and partially dehulled CM samples were included at 20% in a barley-based diet. One pooled high-fiber CM sample and a straight barley diet were evaluated as well. Partial dehulling increased (P < 0.05) the digestible energy (DE) content from 12.2 to 13.3 MJ kg DM−1, respectively, and the level of crude protein (CP) from 40.6 to 43.8% in regular and partially dehulled CM samples, respectively. The digestibility of threonine was increased (P < 0.05) by partial dehulling, from 72.1 to 75.5%; the digestibilities of CP, lysine, methionine and cysteine were not affected (P > 0.05). Only the digestibilities of methionine and threonine were lower (P < 0.05) in the high-fiber CM sample than in the regular and partially dehulled samples. Digestible energy content, which ranged from 10.8 to 14.2 MJ kg DM−1, differed (P < 0.05) between crushing plants for both regular and partially dehulled CM samples. The digestibility of lysine did not differ (P > 0.05) between processing plants for the regular CM samples. The digestibility of lysine did not differ (P > 0.05) between processing plants for the regular CM samples. In contrast, there were differences (P < 0.05) in lysine digestibility, ranging from 74.8 to 83.8%, and methionine, ranging from 80.4 to 86.9%, between crushing plants for partially dehulled samples. There were low negative relationships between apparent ileal AA digestibilities and NDF, ADF and CF levels (r < 0.39) and between DE content and NDF, ADF and CF levels (r < 0.36) in the CM samples. In conclusion, the reduction in fiber content by mechanical tail-end dehulling increased the supply of DE and the level of CP, but did not influence apparent ileal CP or AA digestibilities, except for threonine which was slightly increased. Key words: Amino acid, canola meal, dehulling, ileal digestibility, pig

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Low-glucosinolate rapeseeds and rapeseed meals: effect of technological treatments on chemical composition, digestible energy content and feeding value for growing pigs

Animal Feed Science and Technology ◽

10.1016/0377-8401(90)90014-y ◽

1990 ◽

Vol 30 (3-4) ◽

pp. 175-191 ◽

Cited By ~ 57

Author(s):

D. Bourdon ◽

A. Aumaître

Keyword(s):

Chemical Composition ◽

Energy Content ◽

Growing Pigs ◽

Digestible Energy ◽

Feeding Value ◽

Technological Treatments

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EFFECTS OF BIN-HEATING ON THE CHEMICAL COMPOSITION AND NUTRITIONAL VALUE OF RAPESEED FED TO MICE

Canadian Journal of Animal Science ◽

10.4141/cjas72-062 ◽

1972 ◽

Vol 52 (3) ◽

pp. 517-524 ◽

Cited By ~ 1

Author(s):

J. M. BELL ◽

P. M. GIOVANNETTI ◽

C. G. YOUNGS

Keyword(s):

Amino Acid ◽

Chemical Composition ◽

Petroleum Ether ◽

Growth Rates ◽

Dietary Protein ◽

Nutritional Value ◽

Brassica Campestris ◽

Feed Utilization ◽

Animal Performance ◽

Protein Levels

Undamaged and bin-heated rapeseed (Brassica campestris) were either: ground; ground and dry-cooked for 30 min at 110 C; ground and autoclaved for 30 min at 1.2 kg/cm2, then dried at 100 C; ground, autoclaved, partially extracted with petroleum ether; or ground, autoclaved, extracted, steam-stripped, and dried. These meals were incorporated at 8, 12, 16, and 20% levels, seed basis, in approximately isocaloric, isonitrogenous mouse diets containing about 20% protein. Bin-heated rapeseed contained no glucosinolates, no myrosinase, and only a trace of hydroxynitriles, but had lost 65, 52, 28, 23, and 15% of its original tryptophan, lysine, histidine, arginine, and threonine, respectively. Mycotoxins were not detected. The odor of the meal derived from heated rapeseed was rated by a panel and found to be generally pleasant. Growth rates and feed utilization by mice fed bin-heated rapeseed were normal. Dietary protein levels were too high to allow the amino acid changes to be reflected in animal performance.

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