NUTRITIONAL VALUE OF LOW GLUCOSINOLATE RAPESEED MEAL FOR SWINE

1975 ◽  
Vol 55 (1) ◽  
pp. 61-70 ◽  
Author(s):  
J. M. BELL
Keyword(s):  
Brassica Napus ◽  
Soybean Meal ◽  
Nutritional Value ◽  
Control Diet ◽  
Rapeseed Meal ◽  
Glucosinolate Content ◽  
Protein Digestion ◽  
Brassica Napus L ◽  
Ad Libitum

Five swine experiments were conducted to evaluate rapeseed meal (RSM) of low glucosinolate content (Brassica napus L. cv. Bronowski). Two experiments involved 0, 25, 50, 75 and 100% substitution of either Bronowski meal or regular (B. campestris) meal for soybean meal or fishmeal used in the control diet. One experiment compared ad libitum-fed and partially restricted pigs. Another experiment involved digestibility studies, and the final one involved methionine and lysine supplementation. As the dietary levels of either Bronowski or regular RSM increased in the ration, protein digestion coefficients decreased from 79 and 80% to 76 and 78%, respectively, and energy coefficients decreased from 82% to 79 and 78%, respectively. The protein and energy digestibility coefficients for Bronowski RSM were estimated to be 68 and 59%; for regular RSM, 65 and 54%. With barley–wheat–RSM diets, pigs responded to 0.1% methionine, but not to lysine (P > 0.05). Pigs fed ad libitum consumed more Bronowski than regular RSM diet and performed as well as pigs fed soybean meal diets.

EFFECTS OF VIRGINIAMYCIN ON THE PERFORMANCE OF PIGS FED BARLEY DIETS SUPPLEMENTED WITH SOYBEAN MEAL OR LOW-GLUCOSINOLATE RAPESEED MEAL

1977 ◽  
Vol 57 (2) ◽  
pp. 313-320 ◽  
Author(s):  
A. G. CASTELL
Keyword(s):  
Brassica Napus ◽  
Soybean Meal ◽  
Growth Rates ◽  
Rapeseed Meal ◽  
Brassica Napus L ◽  
Dietary Components ◽  
Growth Promoting ◽  
Ad Libitum

Ninety-six pigs, fed ad libitum from 10 to 94 kg liveweight, were used to examine the effects of including virginiamycin, at 0 and 1.102 g/100 kg diet, in starter and grower diets containing a low-glucosinolate rapeseed meal (Brassica napus L. cv. Tower) or soybean meal. Virginiamycin supplementation significantly increased growth rates, by 4.6% pre 33 kg liveweight and 5.1% subsequently, but produced a nonsignificant (P > 0.05) improvement in feed: gain ratios (2.8 and 0.5%, respectively). Use of the antibiotic did not significantly affect carcass criteria. Using the oilseed meals at 7.5% in the starter period and 12.5% subsequently, replacement of soybean meal by rapeseed meal resulted in a decrease in growth rates (from 546 to 518 g/day, P < 0.05, and from 754 to 706 g/day, P < 0.01, respectively) and poorer feed:gain ratios (2.38 vs. 2.51 kg feed/kg gain, P < 0.05, and 3.69 vs. 3.85, NS, respectively). Carcass differences between the pigs fed soybean meal or rapeseed meal were not significant (P > 0.05). The results suggest that the extent of the response to growth-promoting levels of virginiamycin may be influenced by dietary components.

A NUTRITIONAL COMPARISON OF VARIOUS RAPESEED AND MUSTARD SEED SOLVENT-EXTRACTED MEALS OF DIFFERENT GLUCOSINOLATE COMPOSITION

1971 ◽  
Vol 51 (2) ◽  
pp. 259-269 ◽  
Author(s):  
J. M. BELL ◽  
C. G. YOUNGS ◽  
R. K. DOWNEY
Keyword(s):  
Growth Rate ◽  
Brassica Napus ◽  
Soybean Meal ◽  
Feed Intake ◽  
Nutritional Value ◽  
Mustard Seed ◽  
Glucosinolate Content ◽  
Feeding Trial ◽  
Growth Depression ◽  
Regression Methods

Seven solvent-processed meals from Brassica napus, B. campestris and B. juncea seed, were compared with soybean meal in a replicated factorial experiment involving three levels of meal (5, 10 and 20%), with and without a flavoring mixture, with and without dietary myrosinase, in a feeding trial with male weanling mice. The addition of 0.3% myrosinase improved the digestibility of both protein and energy fractions, but resulted in growth depression in diets containing meals high, in glucosinolates and fed at 10 or 20% levels. Removal of feed intake differences by regression methods revealed that non-hydrolyzed glucosinolates in diets containing 10% Brassica meals had little effect on growth rate, except for one B. napus meal high in 2-hydroxy-3-butenyl glucosinolate. Diets containing glucosinolates giving rise to allyl- and butenyl isothiocyanates, as well as oxazolidinethione, inhibit growth; therefore, total glucosinolate content should be considered in assessing the nutritional value of Brassica meals.

scholarly journals Identification of Candidate Genes for Seed Glucosinolate Content Using Association Mapping in Brassica napus L.

Genes ◽  
2015 ◽  
Vol 6 (4) ◽  
pp. 1215-1229 ◽  
Author(s):  
Cun-Min Qu ◽  
Shi-Meng Li ◽  
Xiu-Jian Duan ◽  
Jin-Hua Fan ◽  
Le-Dong Jia ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Association Mapping ◽  
Candidate Genes ◽  
Glucosinolate Content ◽  
Brassica Napus L

Variation in the glucosinolate content of vegetative tissues of Chinese lines of Brassica napus L

1999 ◽  
Vol 134 (1) ◽  
pp. 131-136 ◽  
Author(s):  
YUNCHANG LI ◽  
GUY KIDDLE ◽  
RICHARD BENNETT ◽  
KEVIN DOUGHTY ◽  
ROGER WALLSGROVE
Keyword(s):  
Brassica Napus ◽  
Glucosinolate Content ◽  
Brassica Napus L ◽  
Vegetative Tissues

EFFECTS OF COLOR ON CONSUMPTION OF BROILER DIETS CONTAINING RAPESEED MEAL AND RAPESEED

1973 ◽  
Vol 53 (2) ◽  
pp. 365-369 ◽  
Author(s):  
A. J. LESLIE ◽  
J. F. HURNIK ◽  
J. D. SUMMERS
Keyword(s):  
Weight Gain ◽  
Soybean Meal ◽  
Control Diet ◽  
Rapeseed Meal ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
The Difference ◽  
The One

Six hundred and seventy-two 1-day-old male broiler chicks of two strains were used to assess the effects of diet and color of diet on feed consumption. Isocaloric isonitrogenous diets that contained soybean meal (control), rapeseed meal, or ground rapeseed were fed in either colored or noncolored form. During the starter period the birds were given a choice of two diets in various combinations whereas during the grower period no choice was available. In the starter period there were no significant effects of color or diet combinations on total feed consumption. Coloring one diet of a pair, however, tended to increase the difference in consumption between the two by reducing the intake of the colored diet. The one exception to this was the diet pair containing ground rapeseed, which was not affected when one diet was colored. The control diet was preferred, followed by the diets containing rapeseed meal and ground rapeseed, respectively, when a choice was available. When no choice of diet was available in the grower period the only significant effect of color was to increase consumption of the ground rapeseed-containing diet. Weight gain in both periods was highest on the control diet followed by the diets containing rapeseed meal and ground rapeseed, respectively.

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