scholarly journals Low Erucic Acid, Low Glucosinolate Rapeseed Meal, with and without Added Gums in the Layer Diet

1978 ◽  
Vol 57 (6) ◽  
pp. 1599-1604 ◽  
Author(s):  
B.E. MARCH ◽  
D.B. BRAGG ◽  
RAYMOND SOONG
Keyword(s):  
Erucic Acid ◽  
Rapeseed Meal ◽  
Low Erucic Acid

EFFECTS OF ADDED RAPESEED GUMS IN CHICK DIETS CONTAINING SOYBEAN MEAL OR LOW-ERUCIC ACID, LOW GLUCOSINOLATE, RAPESEED MEAL

1978 ◽  
Vol 58 (1) ◽  
pp. 111-113 ◽  
Author(s):  
B. E. MARCH ◽  
RAYMOND SOONG
Keyword(s):  
Adverse Effects ◽  
Erucic Acid ◽  
Soybean Meal ◽  
Rapeseed Meal ◽  
Low Erucic Acid

Gums derived from the refining of rapeseed oils from cvs. Tower and Midas were tested for their effects when fed to chicks. No adverse effects of the gums were found whether the gums were fed in a soybean meal diet or added back to rapeseed (Tower) meal which was then fed in substitution for soybean meal.

EFFECTS OF FEEDING LOW AND HIGH GLUCOSINOLATE RAPESEED MEALS AND SOYBEAN MEAL ON THYROID FUNCTION OF YOUNG PIGS

1979 ◽  
Vol 59 (3) ◽  
pp. 589-596 ◽  
Author(s):  
P. J. McKINNON ◽  
J. P. BOWLAND
Keyword(s):  
Erucic Acid ◽  
Thyroid Function ◽  
Soybean Meal ◽  
Rapeseed Meal ◽  
The Other ◽  
Cholesterol Levels ◽  
Young Pigs ◽  
Free Thyroxine Index ◽  
Ad Libitum ◽  
Low Erucic Acid

In two experiments, 113 pigs were fed diets containing up to 25.3% low-glucosinolate, low-erucic acid rapeseed meal (cv. Tower = 00-RSM) or 31.3% commercially available rapeseed meal (C-RSM) as partial or complete replacements for soybean meal (SBM). The diets, formulated to be isonitrogenous and isocaloric, were fed ad libitum to the pigs from 4 to 10 wk of age. Serum triiodothyronine uptake (T-3 uptake) was greater (P < 0.05) in pigs fed the SBM diet compared with the other diets. In experiment 1, tetraiodothyronine (T-4) levels of 10-wk-old pigs fed the SBM diet were greater (P < 0.05) than pigs fed C-RSM or C-RSM + SBM diets. The free thyroxine index (T-3 uptake/100 × T-4) was lowest (P < 0.05) for pigs fed the C-RSM diet. In experiment 2, serum T-4 levels of pigs fed the SBM and 00-RSM + SBM diets were higher (P < 0.05) than for those of pigs fed other diets. Serum cholesterol levels of pigs fed the 00-RSM, C-RSM and C-RSM + SBM diets were higher (P < 0.05) than was found with the SBM or 00-RSM + SBM diets. Thyroid weight was greater (P < 0.05) in pigs fed the C-RSM or C-RSM + SBM diets. The height of epithelial cells was greater (P < 0.05) for pigs fed the 00-RSM and C-RSM diets and weight of epithelium of all pigs fed RSM indicated epithelial hypertrophy compared with those fed the SBM diet. The results suggested that thyroid function of pigs fed high levels of 00-RSM might be impaired compared with those fed SBM as the sole supplementary protein source in cereal-based diets, but less severely than with pigs fed C-RSM.

Detoxification of Rapeseed Products

1981 ◽  
Vol 44 (6) ◽  
pp. 459-470 ◽  
Author(s):  
P. N. MAHESHWARI ◽  
D. W. STANLEY ◽  
J. I. GRAY
Keyword(s):  
Erucic Acid ◽  
Rapeseed Meal ◽  
Full Potential ◽  
Decomposition Products ◽  
Toxic Compounds ◽  
Low Erucic Acid

The full potential of rapeseed products has not yet been realized because of the presence of certain toxic compounds. This paper reviews development of low erucic acid rapeseed, and the extensive experimental scrutiny to which this oil has been subjected. The significance of the presence of gluocosinolates as well as their decomposition products (isothiocyanates and oxazolidinethiones) in rapeseed meal is also discussed. Various methods for removing these toxic constitutents from the meal are reviewed.

scholarly journals In Vitro Production of Somaclones with Decreased Erucic Acid Content in Indian Mustard [Brassica juncea (Linn.) Czern&Coss]

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1297
Author(s):  
Chitralekha Shyam ◽  
Manoj Tripathi ◽  
Sushma Tiwari ◽  
Niraj Tripathi ◽  
Ravindra Solanki ◽  
...  
Keyword(s):  
Erucic Acid ◽  
Acid Content ◽  
Indian Mustard ◽  
Mother Plant ◽  
Erucic Acid Content ◽  
Oilseed Crop ◽  
In Vitro Production ◽  
Somaclonal Variations ◽  
Low Erucic Acid

Brassica junceais a crucial cultivated mustard species and principal oilseed crop of India and Madhya Pradesh, grown for diverse vegetables, condiments, and oilseeds. Somaclonal variation was explored as a probable source of additional variability for the manipulation of fatty acids, especially low erucic acid contents that may be valuable for this commercially important plant species. The plantlets regenerated from tissue cultures (R0), their R1 generation and respective parental lines were compared for morpho-physiological traits and fatty acid profile for the probable existence of somaclonal variations. The first putative somaclone derived from genotype CS54 contained 5.48% and 5.52% erucic acid in R0 and R1 regenerants, respectively, compared to the mother plant (41.36%). In comparison, the second somaclone acquired from PM30 exhibited a complete absence of erucic acid corresponding to its mother plant (1.07%). These putative somaclones present a source of variation for exploitation in the development of future mustard crops with low erucic acid content.

SUBSTITUTION OF RAPESEED MEAL FOR SOYBEAN MEAL AS A SOURCE OF PROTEIN FOR LACTATING COWS

1976 ◽  
Vol 56 (2) ◽  
pp. 233-242 ◽  
Author(s):  
L. J. FISHER ◽  
DOROTHY S. WALSH
Keyword(s):  
Milk Yield ◽  
Dry Matter ◽  
Rapeseed Meal ◽  
Milk Composition ◽  
Hormone Metabolism ◽  
Thyroid Hormone Metabolism ◽  
Lactating Cows ◽  
Lower Blood ◽  
Concentrate Mixture ◽  
Low Erucic Acid

Sixteen lactating Holstein cows were randomly assigned to treatment sequences in a 4 × 4 changeover experiment. Experimental periods were 28 days in length separated by 7 days for changeover. Cows were fed corn silage free choice and gradually increasing amounts of one of four dairy concentrates containing 0, 11, 22, or 34% rapeseed meal (RSM) of a Canadian, experimental, low glucosinolate–low erucic acid variety. Concentrate intake (kg dry matter/day), milk yield (kg/day) and body weight change (kg/28 days) were 8.45a, 8.71a, 8.37a and 7.17b; 24.40a, 24.03ab, 22.92bc and 21.96c and 7.6b, 22.4b, 13.0ab, and 3.0b for 0, 11, 22 and 34% RSM mixtures, respectively. There was no influence of treatment on milk composition. Ration dry matter (DM) and nitrogen digestibilities declined (P < 0.05) as the RSM in the concentrate mixture increased. The amount of nitrogen excreted in the urine was greatest for cows fed 0% RSM and least for cows fed 34% RSM. Cows fed concentrate mixtures containing 34% RSM had a lower blood thyroxine level than others (P < 0.05), but RSM-containing concentrates had no apparent effect on the conversion of thyroxine to triiodothyronine. Results of the trial indicated that this experimental variety of RSM had no detrimental effect on concentrate intake, DM digestibility, milk composition or thyroid hormone metabolism when included at levels up to 22% in the concentrate mixture. However, milk yield and apparent digestibility of ration nitrogen were decreased (P < 0.05) by the 22% RSM mixture. It was not certain from the current findings whether the depression in digestibility was due largely to the high oil content of the meal or due to the higher fiber content of the RSM-supplemented rations.

Utilization of Rapeseed Oils of High and Low Erucic Acid Content

1974 ◽  
Vol 17 (3) ◽  
pp. 136-147 ◽  
Author(s):  
H. Vogtmann ◽  
D.R. Clandinin ◽  
R.T. Hardin
Keyword(s):  
Erucic Acid ◽  
Acid Content ◽  
Erucic Acid Content ◽  
Low Erucic Acid
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