scholarly journals Effects of thermal processing on digestibility and protein utilization of rapeseed meal of medium and low glucosinolate type in diets for growing pigs

1991 ◽  
Vol 63 (5) ◽  
pp. 475-482
Author(s):  
Matti Näsi ◽  
Hilkka Siljander-Rasi
Keyword(s):  
Thermal Processing ◽  
Nutritive Value ◽  
Brassica Campestris ◽  
Practical Importance ◽  
Rapeseed Meal ◽  
Growing Pigs ◽  
Small Reduction ◽  
Protein Utilization ◽  
Mean Values ◽  
Dietary Treatments

The nutritive value of rapeseed meals (RSM) from Brassica campestris, 0 and 00-cultivars, with medium (25—55 μg/g defatted meal) and low (0.05), although 00-RSM’s tended to have higher OM and CP digestibilities compared with 0-RSM; pooled mean values being 0.638 vs. 0.715 for OM and 0.715 vs. 0.775 for CP. RSM treated for ruminant escape protein had the same or better digestibility than untreated RSM; pooled average values being 0.669 vs. 0.680 for OM and 0.746 vs. 0.757 for CP. This observation has practical importance since the same treatments of RSM could be employed for meals to be used in diets of both ruminants and pigs. In these experiments, the protein utilization was efficient and differences between the dietary treatments were small and insignificant. Heat treatment (Opex) did not decrease protein utilization despite a small reduction in lysine content.

scholarly journals Nutritive value of rapeseed meal from two Brassica campestris varieties for growing pigs

1980 ◽  
Vol 52 (1) ◽  
pp. 45-49
Author(s):  
Maija-Liisa Salo
Keyword(s):  
Nitrogen Balance ◽  
Nutritive Value ◽  
Brassica Campestris ◽  
Rapeseed Meal ◽  
Fat Content ◽  
Growing Pigs ◽  
The Other ◽  
The Difference ◽  
Better Than

The digestibility and nutritive value of two rapeseed meals (Brassica campestris) , one prepared from the medium-glucosinolate varieties Span and Torch, and the other from a low-glucosinolate variety Candle, were determined for three pigs weighing about 45 kg. The pigs received 1600 g barley and 600 g rapeseed meal daily. The composition of the Candle meal was better than that of Span-Torch and its digestibility and nutritive value higher (P < 0.01). When the fat content of Candle meal was corrected to the 1.5 % level of Span-Torch meal, the ME values were 13.6 and 10.4 MJ/kg DM, the NE values 1.01 and 0.78 FU/kg DM (FU = 0.7 kg starch), and the DCP values 318 and 248 g DCP/kg DM for Candle and Span-Torch, respectively (P < 0.01). The difference in the nitrogen balance was also significant (P < 0.01). Thus the Candle meal has about 30 % higher nutritive value for pigs than the Span-Torch meal.

scholarly journals Nutritive value of full-fat rapeseeds for growing pigs

1980 ◽  
Vol 52 (1) ◽  
pp. 1-6
Author(s):  
Maija-Liisa Salo
Keyword(s):  
Nutritive Value ◽  
Brassica Campestris ◽  
Control Diet ◽  
Milk Powder ◽  
Skim Milk ◽  
Skim Milk Powder ◽  
Growing Pigs ◽  
Feed Conversion ◽  
Weaned Piglets ◽  
Low Erucic Acid

The digestibility and nutritive value of full-fat, ground rapeseeds of two low-erucic acid, low-glucosinolate varieties, Candle (Brassica campestris) and Regent (B. napus), were determined for three pigs, weighing about 40 kg each. The ME values were 18.72 and 20.26 MJ ME/kg DM, the NE values 1,58 and 1.70 FU/kg DM (FU = 0.7 kg starch) and the DCP values 155 and 201 g DCP/kg DM, respectively, for the two varieties. Nitrogen balances in the same trials were 21.0 and 22.0 g N/d. Twenty-eight freshly weaned piglets averaging 11 kg in weight were fed during four weeks 1) a control diet containing barley and skim milk powder, or 2) the control diet with 10% finely ground Candle seeds incorporated. The calculated energy and DCP values of the diets were alike. The growth rates of both groups were equal, as were the palatabilities of the diets. The feed conversion figures were 2.0 and 2.1 FU/kg liveweight gain, respectively. Accordingly, the energy value of Candle seeds was a little poorer for piglets than for the older growing pigs.

EFFECTS OF AMMONIATION OF CANOLA (LOW GLUCOSINOLATE RAPESEED) MEAL ON ITS NUTRITIONAL VALUE FOR THE RAT

1984 ◽  
Vol 64 (4) ◽  
pp. 997-1004 ◽  
Author(s):  
M. O. KEITH ◽  
J. M. BELL
Keyword(s):  
Nutritional Value ◽  
Protein Quality ◽  
Brassica Campestris ◽  
Growth Period ◽  
Rapeseed Meal ◽  
Growing Pigs ◽  
Processing Step ◽  
Lysine Concentration ◽  
Limiting Amino Acid ◽  
Step Control

Canola (low glucosinolate rapeseed) meal (CM) (Brassica campestris 'Candle') was heated to 105 °C at the desolventizing step (control) or treated with ammonia, steam or both, in addition to heat. These CMs and a commercial CM were incorporated into rat diets at levels providing lysine, the limiting amino acid, at 0.44%. Similar diets contained casein, lactalbumin or soybean meal. All diets were formulated to contain 1.28% nitrogen (air-dry basis). During a 2-wk growth period the feed/gain ratios were higher for rats fed ammoniated CM than for those fed steam-treated meal. Significant differences in gains and feed intakes were not detected. Plasma lysine concentrations were lower (P < 0.05) in rats fed the ammoniated meals indicating decreased absorption of lysine. The performance by rats was generally in agreement with that by growing pigs as reported previously. While ammoniation is effective in reducing the glucosinolate concentrations of CM, this processing step has an adverse effect on the protein quality, particularly lysine availability, of the meal thereby decreasing its nutritional value in swine rations. Key words: Rapeseed meal, canola, ammoniation, protein quality, rats, plasma lysine concentration

scholarly journals Rapeseed meal as a protein source for growing pigs

1982 ◽  
Vol 54 (5) ◽  
pp. 313-320
Author(s):  
Maija-Liisa Salo
Keyword(s):  
Nutritive Value ◽  
Fish Meal ◽  
Daily Intake ◽  
Rapeseed Meal ◽  
Growing Pigs ◽  
Negative Effect ◽  
Yorkshire Pigs ◽  
Pelleted Diet ◽  
Group 2 ◽  
High Level

Three groups of 17 Yorkshire pigs, from 24 to 98 kg liveweight, were fed on three diets which differed only in the main protein sources. Diet 1 contained Span rapeseed meal (RSM) 17% and pea 5 %, diet 2 RSM 8 % and fish meal 4 %, and diet 3 (control) soybean meal (SBM) 5.5 % and fish meal 4 %. The daily rations were isoenergetic and isonitrogenous, and contained digestive crude protein (DCP), lysine and S-amino acids according to standards. The feeds were steam pelleted, and the pigs were fed using a one-diet system and restrictive feeding. The only clear difference between diets was the poorer palatability of those containing RSM, especially of diet 2. The feeding of groups 1 and 2 was therefore actually unrestrictive. The average daily intake of f.u./pig was significantly (P < 0.01) lower in group 2. Some tail biting occurred in group 2. The growth results were equal for diets 1 and 3, and nonsignificantly poorer for diet 2. The average daily gains of groups 1, 2 and 3 were 813, 788 and 820 g, and the f.u./kg gain 2.74, 2.78 and 2.74, respectively. In carcass characteristics there were no differences between diets: the side fat was 20.3, 21.3 and 20.9 mm, and the area of l. dorsi 36.7, 37.8 and 37.7cm2, respectively. No odd tastes in fat or meat were observed. The results indicate that quite a high level of Span ROM in steam pelleted diet can be fed and still produce high daily gain. The combination of RCM with other feed ingredients seems to have an extra influence on the palatability and nutritive value of the diet. Because RSM makes the diet more bulky and less palatable, the pigs can be fed ad libitum without negative effect on the carcass quality.

scholarly journals Rapeseed meal of low- and high-glucosinolate type fed to growing-finishing pigs

1985 ◽  
Vol 57 (4) ◽  
pp. 263-269
Author(s):  
Matti Näsi ◽  
Timo Alaviuhkola ◽  
Kaija Suomi
Keyword(s):  
Organic Matter ◽  
Crude Protein ◽  
Nutritive Value ◽  
Rapeseed Meal ◽  
Growing Pigs ◽  
The Other ◽  
Control Group ◽  
Finishing Pigs ◽  
Heat Treated ◽  
Growth Trial

The nutritive value of five lots of rapeseed meal (RSM) from Brassica campestris or B. napus with different levels of glucosinolates (GL) was investigated in a digestibility and balance trial with a 5 x 5 Latin square design and in a growth trial with 140 growing-finishing pigs. The RSM’s were prepared from the cultivars: Span-Torch, Sigga, Gulliver and Topas, and a heat-treated RSM was also studied, their total GL contents (µmol/g defatted meal) being 42, 11, 98, 27 and 8, respectively. Cv. Sigga had yellow hulls and a lower ADF content than the other cultivars. The hat-treated RSM had a reduced lysine content. There were no significant (P > 0.05) differences in organic matter or crude protein digestibilities between the RSM’s with different GL levels or the RSM’s prepared from B. campestris and B. napus, when RSM was used as the only protein supplement at a level of 20—25 % in a barley-based diet. Heat treatment reduced the organic matter and crude protein digestibilities (P < 0.01). Nitrogen retention and protein utilization were lower (P < 0.01) on the diet supplemented with heat-treated RSM than on the diets with the other RSM’s but otherwise there were no significant differences between them (P > 0.05). In the growth trial supplementation with HGL-RSM Gulliver (14 % in diet) caused some palatability problems and this led to reduced performance (P < 0.05), but there were no differences between the other groups receiving 14—15 % RSM and the SBM control group (P > 0.05). The carcass quality was similar in all the groups. The weight of the thyroid gland was higher in the pigs receiving RSM than in the SBM controls, by 6—57 % (P < 0.05). In the present study a fairly high RSM supplements from cultivars with a moderate high GL content could be used in the diet of growing pigs without impairing their performance, when the diet was formulated on the basis of the digestible nutrients of RSM. Heat-treated RSM, with protein of low rumen degradability, is of poor value in pig feeding due to the low digestibility and availability of its protein.

An assessment of the nutritive value of vegetable protein meals for growing pigs using Silcock available lysine values

1975 ◽  
Vol 15 (76) ◽  
pp. 626 ◽  
Author(s):  
MR Taverner ◽  
CJ Rayner
Keyword(s):  
Nutritive Value ◽  
Rapeseed Meal ◽  
Growing Pigs ◽  
Lysine Content ◽  
Food Conversion ◽  
Meat And Bone Meal ◽  
Average Growth ◽  
Thyroid Glands ◽  
Soyabean Meal ◽  
Available Lysine

The effects on the growth performance of pigs and the total and Silcock available lysine content of diets were studied when an equal amount of protein from rapeseed meal and soyabean meal, either expeller or solvent extracted, was included in diets based on wheat and meat and bone meal and fed in restricted amounts to 32 pigs from 20 to 45 kg liveweight. The total and available lysine content of the proteins and diets decreased in the order: solvent extracted soyabean meal, expeller extracted soyabean meal, expeller extracted rapeseed meal, solvent extracted rapeseed meal. The growth rates and food conversion ratios of pigs varied in the same order, and average growth rate and average food conversion were significantly correlated to both total lysine (r2 = 0.910, r2 = 0.918 respectively) and available lysine (r2 = 0.998, r2 = 0.998 respectively) in the diet. The weights of the thyroid glands of pigs fed either rapeseed meal were significantly greater than those of pigs fed the soyabean meals.'Pigs fed solvent extracted soyabean meal had more lean in their hams than pigs fed other supplements.

Effects on Nutritive Value for Growing Pigs of Pelleting Diets Containing Low Glucosinolate Rapeseed Meals

1986 ◽  
Vol 107 (3) ◽  
pp. 735-737 ◽  
Author(s):  
T. G. Rowan ◽  
T. L. J. Lawrence
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Rapeseed Meal ◽  
Soya Bean ◽  
Growing Pigs ◽  
Apparent Digestibility ◽  
Crude Fibre ◽  
Gross Energy ◽  
Bean Meal ◽  
Soya Bean Meal

Many pigs are given their diets in cubed or pelleted form and the process of pelleting has been shown to increase nutritive value. The reasons for increases in nutritive value following pelleting of a diet are uncertain but reductions in crude fibre and improved apparent digestibility of gross energy and dry matter (D.M.) may be involved (Lawrence, 1971, 1976, 1979). As rapeseed meal (RSM) is higher in crude fibre and, in general, of lower digestible energy value than soya-bean meal (SBM), it was thought possible that the beneficial effect of pelleting could be greater in RSM than in SBM diets.

COMPARISON OF LOW GLUCOSINOLATE RAPESEED MEAL, COMMERCIAL RAPESEED MEAL AND SOYBEAN MEAL AS PROTEIN SUPPLEMENTS FOR GROWING PIGS

1974 ◽  
Vol 54 (4) ◽  
pp. 679-685 ◽  
Author(s):  
J. P. BOWLAND
Keyword(s):  
Soybean Meal ◽  
Nitrogen Retention ◽  
Rapeseed Meal ◽  
Similar Rate ◽  
Growing Pigs ◽  
Metabolizable Energy ◽  
Protein Supplements ◽  
Isocaloric Diets ◽  
Dietary Treatments ◽  
Crossbred Pigs

Thirty-six crossbred pigs, equally divided between gilts and barrows, were fed from an average of 6 wk of age to market weight on three dietary treatments. Isonitrogenous, isocaloric diets were supplemented with either soybean meal (SBM), low glucosinolate rapeseed meal (RSM) from Brassica napus cv. Bronowski or commercial RSM of B. campestris origin. Metabolic studies were conducted at average weights of 14 and 31 kg and there were no significant differences in coefficients for digestible energy, metabolizable energy, digestible nitrogen or nitrogen retention between treatments, between sexes, or between periods. During the first 6 wk of the experiment and for the overall experiment, there was a difference between sexes in their response to low glucosinolate RSM. Barrows gained at a similar rate when fed diets supplemented with either SBM or low glucosinolate RSM, but more slowly on diets supplemented with commercial RSM. Gilts gained more slowly when fed either RSM than when fed a SBM-supplemented diet. The results suggest that there may be a factor, other than glucosinolates, present in RSM that tends to depress performance of gilts but not of barrows. This depression arising from either source of RSM was not associated with digestibility of energy or nitrogen or with nitrogen retention.

Influence of variety and site of cultivation on the nutritive value of rapeseed meal for growing pigs

1992 ◽  
Vol 1992 ◽  
pp. 129-129
Author(s):  
R.J. Lambert ◽  
M. Ellis ◽  
R. Smithard ◽  
M. Davis
Keyword(s):  
Nutritive Value ◽  
Rapeseed Meal ◽  
Growing Pigs ◽  
Feeding Trial ◽  
Agronomic Practices ◽  
Growing Pig ◽  
Set Up

Glucosinolate levels are thought to be the major factor limiting the use of rapeseed meals in pig diets. The greatest differences In glucoslnolate content between samples of rapeseed appear to be attributable to variety and site of cultivation. A growing pig feeding trial was set up to Investigate varietal and site differences in the nutritive value of different rapeseed meals.Rapeseed of the double low varieties Tapidor, Cobra, Libravo and Ariana were obtained from each of two sites (High Mowthorpe EHF, North Yorkshire and Bridgets EHF, Hampshire) where agronomic practices at both sites were very similar. These materials were solvent extracted to yield eight rapeseed meals of commercial type.

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