1984
DOI: 10.2527/jas1984.584996x
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Nutrients and Toxicants in Rapeseed Meal: a Review

Abstract: The composition of rapeseed meal and hulls is reviewed with emphasis on components of nutritional interest. Carbohydrates in rapeseed meal are mainly pectins, pentosans and cellulose and comprise nearly one-half the gross energy. The digestibility of energy is lower for rapeseed than for soybean meal. Protein is well digested, but the protein digestion coefficient and the availability of amino acids are lower than for soybean meal. Data on digestible and metabolizable energy are summarized. The kinds of glucos… Show more

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Cited by 304 publications
(190 citation statements)
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“…However, there is no indication that the DT process was changed with the introduction of canola varieties. The meals tested in this experiment contained only 10.55 µmol of aliphatic glucosinolates g -1 of meal prior to toasting, which is lower than that of the toasted meals from the original varieties of canola [14.4 µmol of aliphatic glucosinolates g -1 (Bell 1984)]. Desolventization/toasting did reduce the aliphatic glucosinolate level to 6.16 µmol g -1 of meal (Table 6), but it is not known if this provides any added benefit, since levels are already low in the seed.…”
Section: Discussionmentioning
confidence: 99%
“…However, there is no indication that the DT process was changed with the introduction of canola varieties. The meals tested in this experiment contained only 10.55 µmol of aliphatic glucosinolates g -1 of meal prior to toasting, which is lower than that of the toasted meals from the original varieties of canola [14.4 µmol of aliphatic glucosinolates g -1 (Bell 1984)]. Desolventization/toasting did reduce the aliphatic glucosinolate level to 6.16 µmol g -1 of meal (Table 6), but it is not known if this provides any added benefit, since levels are already low in the seed.…”
Section: Discussionmentioning
confidence: 99%
“…Glucosinolates are non-toxic, but upon degradation thiocyanate, isothiocyanates and nitriles are released that are toxic to animals. These end products suppress the thyroidal uptake of iodine (Duncan, 1991;Barrett et al, 1997) and induce metabolic disorders such as liver and thyroid hypertrophy (Papas et al, 1979;Fenwick and Curtis, 1980;Bourdon et al, 1981;Bell, 1984). Upon ingestion, glucosinolate or metabolites may cause tissue alterations, and growth and health problems (Wallig et al, 1992;Kloss et al, 1994;Tripathi and Mishra, 2007).…”
Section: Introductionmentioning
confidence: 99%
“…One of the challenges of feeding mustard to ruminants is the high content of glucosinolates, which reduces palatability and also has goitrogenic and potentially toxic effects (Katamoto et al 2001). Several researchers have shown that high glucosinolate feeds such as rapeseed or mustard meal caused a reduction in animal performance and had potential toxic effects (Bell 1984;Katamoto et al 2001). Tripathi et al (2001b) found that glucosinolates in mustard meal caused depressed growth rate, mild thyroid enlargement and goiter in lambs when fed at approximately 14% of the total diet, even though clinical symptoms were not apparent.…”
Section: Animal Performancementioning
confidence: 99%