Studies on the Metabolizable Energy of Rapeseed Meal for Growing Chickens and Laying Hens

Lodhi, G. N.; Renner, Ruth; Clandinin, D. R.

doi:10.3382/ps.0480964

Cited by 50 publications

(21 citation statements)

References 17 publications

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“…Span A and Span S were significantly lower (P<.01) in ME than all other meals tested. The metabolizable energy values of Span A and Span S were low and were comparable to RSM metabolizable energy values reported by various workers (Lodhi et al, 1969a;March and Biely, 1971;Rao and Clandinin, 1970;March et al, 1973).…”

Section: Resultssupporting

confidence: 88%

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Factors Affecting the Metabolizable Energy Content of Rapeseed Meals

Nwokolo

Bragg

1978

Poultry Science

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Seven samples of rapeseed meal were utilized to study the factors associated with variation in metabolizable energy content. Nutritional factors related to metabolizable energy were determined in each sample (crude protein, crude fiber, ether extract, sugar, starch, and available carbohydrates). Gross energy was determined and measurements for metabolizable energy were carried out using the chick procedure. Correlation coefficients were calculated between metabolizable energy and energy factors in rapeseed meal.Results showed a high degree of variation in protein, ether extract, sugar, and available carbohydrate content in the rapeseed meal samples. Metabolizable energy showed a range between 1492 and 1957 kcal/kg. Calculated analysis using two regression equations are shown for metabolizable energy. These regression equations may be utilized to predict metabolizable energy level in rapeseed meal or similar samples. Significant correlation coefficients were observed between metabolizable energy and ether extract plus sugar plus starch or ether extract or available carbohydrates or crude fiber (negative).

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Section: Resultssupporting

confidence: 88%

“…Lodhi et al (1969a) reported ME of 1104 kcal/kg while March and Biely (1971) observed a range of 1120 to 1730 kcal/kg for rapeseed meals. In other studies, March et al (1973) obtained ME values of 1465 and 1510 kcal/kg for RSM fed to White Leghorn and broiler chicks respectively.…”

Section: Introductionmentioning

confidence: 95%

Factors Affecting the Metabolizable Energy Content of Rapeseed Meals

Nwokolo

Bragg

1978

Poultry Science

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“…The assays yield apparent metabolizable energy (AME) values which may be corrected for nitrogen retained or lost from the body (AME n ). The AME values of feedstuffs have been shown to vary with the age (Bayley et al, 1968;Zelenka, 1968;Lodhi et al, 1969), strain and breed (Sibbald and Slinger, 1963;Slinger et al, 1964;Foster, 1968), and species (Slinger et al, 1964;Bayley et al, 1968;Fisher and Shannon, 1973;Leeson et al, 1974) of the assay bird and with the level of feed intake (Sibbald, 1975).…”

Section: Introductionmentioning

confidence: 97%

Effect of the Age of Chickens on the True Metabolizable Energy Values of Feed Ingredients

et al. 1980

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White Leghorn male 4-week-old chicks and adult roosters were used to determine the effect of age on the true metabolizable energy (TME) and nitrogen-corrected true metabolizable energy (TME,,) value of ground yellow corn, dehulled soybean meal, wheat shorts, high-glucosinolate rapeseed meal, and dehydrated alfalfa meal. The TME and TME n values of each ingredient were calculated from its gross energy value and the regression of energy voided as excreta on the weight of feed consumed. Variable intakes of corn and soybean meal were obtained with chicks by feeding different amounts of the feedstuffs and with roosters by varying the duration of the feeding period. Variable intakes of the other ingredients were obtained by the force feeding of the birds.The TME values of the feedstuffs in kcal/g of dry matter for chicks and roosters, respectively, were as follows: corn, 3.93 and 3.98; soybean meal, 3.24 and 3.11; wheat shorts, 3.12 and 3.07; rapeseed meal, 2.24 and 2.50; alfalfa meal, 1.22 and 1.38. The TME n values of the feedstuffs for chicks and roosters, respectively, were as follows: corn, 3.76 and 3.88; soybean meal, 2.85 and 2.87; wheat shorts, 2.92 and 2.94; rapeseed meal, 1.99 and 2.24;alfalfa meal, 1.14 and 1.28. The TME values of soybean meal and rapeseed meal for chicks were 104% (P<.05) and 90% (P<.05), respectively, of the values obtained with roosters. The TME n values of corn and rapeseed meal for chicks were 97% (P<.05) and 89% (P<.01), respectively, of the values for roosters. The TME and TME n values of the other feedstuffs were not affected (P>.05) by the age of the bird.It appears that, with the exception of high-glucosinolate rapeseed meal, TME values obtained with adult roosters can be used in the formulation of diets for young growing birds.

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“…values of a limited number of feedstuffs as influenced by age of chickens have been reported. These include Sibbald and Slinger (1963), Sell (1966), Lodhi et al (1969) and Rao and Clandinin (1970) for rapeseed meal; Zablan et al (1973), and Almquist and Halloran (1969) for safflower meal; and Renner and Hill (1960) for tallow. Almquist and Halloran (1973) have reported an age difference in the M.E.…”

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confidence: 97%

Comparison of Metabolizable Energy Values of Feed Ingredients for Chicks and Hens

1976

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Nitrogen corrected metabolizable energy values were determined for 4-week old broiler chicks and 60-week old Leghorn hens. Feed ingredients tested included corn, wheat, barley, bailey hulls, wheat bran, alfalfa meal, fish meal, meat scraps, soybean meal, safflower meal and peas. Significant differences in energy values were obtained for most feeds with higher energy values resulting in 8 of 11 feeds when fed to hens. Hens in general utilized more energy than chicks when fed feed ingredients with higher fiber levels.

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Studies on the Metabolizable Energy of Rapeseed Meal for Growing Chickens and Laying Hens

Cited by 50 publications

References 17 publications

Factors Affecting the Metabolizable Energy Content of Rapeseed Meals

Factors Affecting the Metabolizable Energy Content of Rapeseed Meals

Effect of the Age of Chickens on the True Metabolizable Energy Values of Feed Ingredients

Comparison of Metabolizable Energy Values of Feed Ingredients for Chicks and Hens

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