scholarly journals Rapeseed meal as a protein source for growing pigs

1982 ◽  
Vol 54 (5) ◽  
pp. 313-320
Author(s):  
Maija-Liisa Salo

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.

1969 ◽  
Vol 66 (4) ◽  
pp. 278-281
Author(s):  
Manuel Soldevila ◽  
José R. Latorre

The nutritive value of dried condensed molasses solubles (CMS) was evaluated in 16% CP complete-type diets for growing Charbray heifers in two studies. The diet contained 50% ground hay of tropical grasses, 15% tuna fish meal, 10% cane molasses and different ratios of ground corn and CMS. In both studies, rate of gain, feed efficiency and general health were used as comparison criteria. In both studies, CMS levels higher than 6% reduced the gains; CMS levels higher than 9% reduced gains more markedly. Feed conversion was decreased at CMS levels higher than 12%. No animal used in both studies, even those fed 21% dried CMS, exhibited diarrhea, as had previously occurred with broilers, laying hens, guinea hens and growing pigs when fed dried CMS levels as low as 10-15%. The general health of all animals remained excellent. The animals used the diets less efficiently as they became heavier, although the overall gains and conversion were reasonable for a feedlot operation under the climatic conditions in the arid Lajas Valley of Puerto Rico. Increasing the caloric density of diets as animals become heavier appears to be a necessity if improved utilization of feed is expected.


1987 ◽  
Vol 44 (3) ◽  
pp. 415-420 ◽  
Author(s):  
I. G. Partridge ◽  
A. G. Low ◽  
J. J. Matte

ABSTRACTIn order to determine the relative nutritional value of rapeseed meal (var. Tandem) in comparison with soya-bean meal and fish meal, seven barley-based diets were formulated to provide 13·1 MJ digestible energy and 8·8 g total lysine per kg. They contained soya-bean meal (S), rapeseed meal (R) or fish meal (F) alone, or equal proportions (on a total nitrogen basis) of soya and rapeseed, soya and fish meal, rapeseed and fish meal or soya, rapeseed and fish meal. The study involved 14 pigs growing from 40 to 90 kg, each fitted with a T cannula in the terminal ileum. Dietary treatments were applied during 7-day periods according to a 7 × 7 Latin-square design, replicated twice. The pigs were fed at 12-h intervals. Ileal digesta were collected during two 12-h periods from each pig after adaptation to each diet. Nutrient apparent digestibilities were measured using chromium III oxide as a marker; for diets S, R and F, respectively, values were: dry matter, 0·58, 0·51 and 0·66 (s.e. 0·014); N, 0·72, 0·67 and 0·73 (s.e. 0·011); lysine, 0·79, 0·72 and 0·83 (s.e. 0·010), with a similar relationship between diets for most other amino acids. In general, values for diets containing combinations of the protein supplements were intermediate between those for diets containing the respective single supplements. Following the main trial, seven pigs were given a semi-purified diet containing rapeseed meal as the only protein source; this gave amino acid digestibility values similar to or slightly higher than diet R. Diet R, which contained 375 g rapeseed meal per kg, presented no palatability problem. Rapeseed meal of the quality used in this trial could contribute a substantial proportion of the protein supplement for growing pigs. Its value should be enhanced by formulating diets according to the ileal digestibility of the limiting amino acids.


1991 ◽  
Vol 63 (5) ◽  
pp. 475-482
Author(s):  
Matti Näsi ◽  
Hilkka Siljander-Rasi

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.


1985 ◽  
Vol 57 (4) ◽  
pp. 263-269
Author(s):  
Matti Näsi ◽  
Timo Alaviuhkola ◽  
Kaija Suomi

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.


1975 ◽  
Vol 15 (76) ◽  
pp. 626 ◽  
Author(s):  
MR Taverner ◽  
CJ Rayner

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.


2001 ◽  
Vol 2001 ◽  
pp. 211-211
Author(s):  
M.E.E. McCann ◽  
J.D.G. McEvoy ◽  
K.J. McCracken

Spring barley is the most widely produced cereal in Northern Ireland. Riviera and Dandy are the main varieties but there is a lack of information regarding their nutritive value. Variety and location of production affect the nutritive value of barley (Valaja et al 1997). An aim of this study was to determine the nutritive value of Riviera and Dandy and also to examine the effect of location of production. Cereal grains contain a high level of non starch polysaccharides (NSP). The major NSP present in barley are β-glucan and arabinoxylan and supplementation with exogenous enzymes has been shown to increase digestibility to different extents (Yin et al 2000). A further aim of this study was to examine the effects of a mixture of β-glucanase and xylanase on these two varieties.


1986 ◽  
Vol 107 (3) ◽  
pp. 735-737 ◽  
Author(s):  
T. G. Rowan ◽  
T. L. J. Lawrence

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.


Author(s):  
R.J. Lambert ◽  
M. Ellis ◽  
R. Smithard ◽  
M. Davis

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.


1980 ◽  
Vol 52 (1) ◽  
pp. 45-49
Author(s):  
Maija-Liisa Salo

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.


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