PERFORMANCE OF MYOCARDIAL AND BLOOD SERAL CHANGES IN PIGS FED DIETS CONTAINING HIGH OR LOW ERUCIC ACID RAPESEED OILS

1976 ◽  
Vol 56 (2) ◽  
pp. 275-284 ◽  
Author(s):  
F. X. AHERNE ◽  
J. P. BOWLAND ◽  
R. T. HARDIN ◽  
R. G. CHRISTIAN
Keyword(s):  
Left Ventricle ◽  
Erucic Acid ◽  
Rapeseed Oil ◽  
Control Diet ◽  
Heart Tissue ◽  
Erucic Acid Content ◽  
Feed Conversion ◽  
Serum Glutamic Oxaloacetic Transaminase ◽  
Tissue Samples ◽  
Low Erucic Acid

Eighty crossbred pigs (barrows and gilts), 4–5 wk old and averaging 7.9 kg were fed diets containing 15% rapeseed oil of either high (34.2%) or low (1.2%) erucic acid content, or a control diet to which no oil was added. Tissue samples were taken from the left ventricle of pigs slaughtered after 4, 16 and 23 wk on experiment, at which time they averaged 19, 87 and 130 kg liveweight. Differences in growth rate were not significant for any of the five treatments. Feed conversion efficiency was poorest (P < 0.01) for pigs fed the control diet. Significant differences between treatments were detected at one or more slaughter weights for serum cholesterol, albumin, alkaline phosphatase, blood urea nitrogen, glucose, protein-bound iodine and serum glutamic oxaloacetic transaminase. Total backfat and area of loin were not significantly affected by either source or level of rapeseed oil. Most of the carcass measurements recorded were significantly (P < 0.01) influenced by sex and slaughter weight. Histological examination of heart tissue from the left ventricle showed no significant effect of rapeseed oil on the incidence of cardiac lipidosis and myopathy.

REPRODUCTION OF MICE FED LOW ERUCIC ACID RAPESEED OIL CONTAMINATED WITH WEED SEED OILS

1982 ◽  
Vol 62 (2) ◽  
pp. 617-624 ◽  
Author(s):  
S. P. ROSE ◽  
J. M. BELL
Keyword(s):  
Erucic Acid ◽  
Feed Intake ◽  
Rapeseed Oil ◽  
Seed Oil ◽  
Control Diet ◽  
Virgin Female ◽  
Weed Seed ◽  
Commercial Practice ◽  
Thlaspi Arvense ◽  
Low Erucic Acid

Processed oils from three samples of fine rapeseed screenings and stinkweed (Thlaspi arvense) seeds were used to contaminate low erucic acid rapeseed oil (LE-RSO), each at two levels (5 and 15%). The contaminated oils were fed at 20% weight/weight (wt/wt) of a purified diet to virgin female Swiss mice for a 2-wk preliminary period and then during the first 18 days of gestation. Two control diets were also fed, the first containing 20% (wt/wt) of the uncontaminated LE-RSO and the second containing 20% (wt/wt) of a lard:corn oil mixture. The mice fed one screenings-oil contaminant had a decreased number of live fetuses, probably due to an inferior palatability of the diet and hence a reduced feed intake of these animals. The screenings oil and stinkweed oil contaminants had no further deleterious effects on the reproductive performance or teratogenic susceptibility of the mice. However, mice fed the lard:corn oil control diet had an increased incidence of cleft palate in their fetuses compared with mice fed LE-RSO. The presence of weed seed oil in low erucic acid rapeseed oil, at levels exceeding those likely to be encountered in commercial practice, resulted in no evidence of teratologically deleterious factors being present, but level of feed intake was affected in some cases, perhaps because of reduced palatability. Key words: Weed seed oil, rapeseed oil, erucic acid, mice, reproduction

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.

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

Identification of Individual Brassica oleracea Plants with Low Erucic Acid Content

2004 ◽  
Vol 3 (5) ◽  
pp. 593-596 ◽  
Author(s):  
Fatih Seyis . ◽  
Wolfgang Friedt . ◽  
Axel Voss . ◽  
Wilfried Luhs .
Keyword(s):  
Erucic Acid ◽  
Brassica Oleracea ◽  
Acid Content ◽  
Erucic Acid Content ◽  
Low Erucic Acid

THE INFLUENCE OF HIGH AND LOW ERUCIC ACID RAPESEED OILS ON THE PRODUCTIVE PERFORMANCE OF LAYING HENS AND ON THE LIPID FRACTION OF EGG YOLK

1974 ◽  
Vol 54 (3) ◽  
pp. 403-410 ◽  
Author(s):  
H. VOGTMANN ◽  
D. R. CLANDININ ◽  
R. T. HARDIN
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Soybean Oil ◽  
Erucic Acid ◽  
Rapeseed Oil ◽  
Fatty Acid Content ◽  
Egg Yolk ◽  
Productive Performance ◽  
Egg Weight ◽  
Low Erucic Acid

The effects of including 5 or 15% of high (regular) and low (Span) erucic acid rapeseed oils or soybean oil on productive performance, total lipid and fatty acid content of egg yolk, and distribution of fatty acids in egg yolk fat were studied. Feed intake varied according to the dietary energy content. However, 15% high erucic acid rapeseed oil decreased feed intake and egg production in comparison with 15% low erucic acid rapeseed oil or soybean oil. Hens receiving rations containing soybean oil produced larger eggs in the treatment than in the pre-treatment period. Five percent regular rapeseed oil in the diet led to a small increase in egg weight, whereas inclusion of 15% regular rapeseed oil in the diet led to a decrease in egg weight. Diets containing the Span oil gave intermediate results. Although the total lipid and total fatty acid content in egg yolk remained constant, the fatty acid composition changed significantly with the experimental diets. The concentration of saturated fatty acids in eggs produced by hens fed diets containing the regular rapeseed oil or low erucic acid rapeseed oil (Span oil) decreased only to a small extent and not in proportion to the amount of these fatty acids present in the diets; but the oleic acid concentration in eggs produced by the hens fed diets containing the rapeseed oil was high. Only 0.2% of erucic acid was found in eggs when 15% regular rapeseed oil was fed to laying hens. The laying hen seems to be able to maintain the level of saturated and monounsaturated fatty acids in yolk lipids in a physiological range. The results indicate that in the laying hen, a partial degradation of erucic acid to gadoleic acid and oleic acid takes place.

GROWTH, CARDIOPATHOLOGY AND CARDIAC FATTY ACIDS OF SWINE FED DIETS CONTAINING SOYBEAN OIL OR LOW ERUCIC ACID RAPESEED OIL

1975 ◽  
Vol 55 (1) ◽  
pp. 49-59 ◽  
Author(s):  
D. W. FRIEND ◽  
J. K. G. KRAMER ◽  
F. D. SAUER ◽  
A. H. CORNER ◽  
K. M. CHARLTON ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Soybean Oil ◽  
Erucic Acid ◽  
Rapeseed Oil ◽  
Mononuclear Cells ◽  
Body Weight Gain ◽  
Methyl Esters ◽  
Control Diet ◽  
Myocardial Necrosis ◽  
Gas Liquid Chromatography

One hundred and eighty weaner pigs were allotted to five dietary treatments comprising a control with no added oil and the control with either soybean oil or rapeseed oil (Brassica campestris cv. Span) each at 10 and 20% of the diet. Postmortem examinations were conducted on equal numbers of boars and gilts at the beginning of the experiment, as initial controls, and after 1, 4 and 16 wk on the experimental diets. When fed for 1 to 4 wk, the higher level of both oils reduced (P < 0.05) body weight gain but from 4 to 16 wk, differences were not significant for any of the diets. Consumption of the control diet exceeded (P < 0.05) that of any other diet, but pigs fed the oil diets showed improved (P < 0.01) feed efficiency. Minute focal interstitial infiltrations of mononuclear cells were present in the myocardium of some pigs in each dietary treatment and also in the initial controls. Foci of overt myocardial necrosis were not seen. Oil red 0 stained sections revealed traces of myocardial fat accumulation which occurred more frequently in pigs fed the high oil diets. In a second experiment, 24 weaner boar pigs were fed the control and the 10% Span oil diets. Two pigs from each treatment were killed on each of days 0, 4, 8, 12, 16 and 20. Total fat was extracted from the heart of each pig and methyl esters determined by gas–liquid chromatography. There was no significant (P = 0.05) difference in percent fat of dry matter between pigs fed the control and the 10% Span diet. The proportions of the major fatty acids were similar between diets. Erucic acid and linolenic acid were present in the cardiac lipid of all control pigs, but to a significantly (P < 0.01) lesser degree than for pigs fed the Span diet. The level of arachidonic acid, for both groups of pigs, declined (P < 0.05) progressively with the duration (days) of feeding.

Sign in / Sign up

Export Citation Format

Share Document