RAPESEED MEAL AS A PARTIAL REPLACEMENT FOR SOYBEAN MEAL IN THE DIETS OF GROWING GILTS AND OF SOWS FOR UP TO THREE REPRODUCTIVE CYCLES

1973 ◽  
Vol 53 (2) ◽  
pp. 355-363 ◽  
Author(s):  
J. P. BOWLAND ◽  
R. T. HARDIN

An experiment with 32 crossbred gilts averaging 10 kg at allotment was designed to evaluate prepress-solvent extracted rapeseed meal (RSM) of Brassica campestris origin as a partial replacement for soybean meal (SBM) in diets of sows during growth or growth and reproduction when the sows were retained for three reproductive cycles. Four treatments were involved: (1) sows fed SBM throughout; (2) gilts fed 6% RSM to 90 kg and SBM for the remainder of the experiment; (3) gilts fed 6% RSM to immediately prior to first mating and SBM for the remainder of the experiment; (4) sows fed 6% RSM throughout. A second experiment with 16 mature Yorkshire sows evaluated the same RSM for one reproductive cycle only as a partial replacement for SBM when introduced into the diet immediately prior to breeding. During the growing period to 90 kg, daily feed intake, gain, and feed conversion did not differ significantly for gilts fed 0 or 6% dietary rapeseed meal, daily gain averaging 0.68 kg. Digestible energy, metabolizable energy, digestible nitrogen, and nitrogen retention coefficients were not influenced by level of dietary RSM or by period (15 or 45 kg) at which digestibility studies were conducted. Gestation length, litter size, and weight at birth and weaning were not influenced by dietary treatment in either experiment. Thyroid weights and ratio of thyroid weight to body weight of representative 2-wk-old female pigs did not differ significantly between treatments. In the first experiment, there was an average disposal of 23% of the sows per reproductive cycle because of failure to breed, failure to conceive, and other causes but these removals did not appear to be associated with treatment. The overall results suggest that up to 6% RSM of the type fed is not detrimental to sow performance when the RSM is fed during growth, throughout growth and reproduction, or when introduced suddenly at the time of breeding.

1968 ◽  
Vol 48 (1) ◽  
pp. 57-64 ◽  
Author(s):  
F. W. Schuld ◽  
J. P. Bowland

Twenty-four sows (six littermate groups of four sows each) from 29 to 106 kg liveweight were fed either 0 or 8% solvent-extracted rapeseed meal, substituted on an isonitrogenous basis for soybean meal and wheat. The two groups were then subdivided to receive either 0 or 8% rapeseed meal in their diets through two complete reproductive cycles.Average daily gain of gilts fed rapeseed meal was lower throughout the growing period but was significantly depressed only from 90 to 106 kg liveweight. Number of services to conception, gestation weight gains, gestation length and lactation weight losses were not significantly influenced by dietary treatment. In the first reproductive cycle, sows fed rapeseed meal during the growing period farrowed only 0.2 pigs less per litter than those fed the diet containing soybean meal, but weaned 2.5 pigs less which resulted in a reduced litter weaning weight.During the second reproductive cycle, treatment during growth had no significant influence on performance of the sows or litters. Sows fed rapeseed meal during gestation and lactation performed as well during both reproductive cycles as those fed the soybean meal diet. The results indicate that levels of 8% rapeseed meal should not be fed to growing gilts that are to be saved for reproduction.


1968 ◽  
Vol 48 (2) ◽  
pp. 189-197 ◽  
Author(s):  
J. P. Bowland ◽  
F. W. Schuld

First- and second-litter progeny from sows fed either 0 or 8% solvent-extracted rapeseed meal in replacement for isonitrogenous amounts of soybean meal and wheat was used to evaluate solvent-extracted rapeseed meal as a protein source. There was no influence of the dam’s diet on gain, efficiency of feed utilization, digestible (DE) and metabolizable energy (ME) or digestible nitrogen (DN) and nitrogen retention in the progeny. In pigs from first litters, the feeding of 8% rapeseed meal, compared with 0% rapeseed meal, depressed feed intake and rate of gain in the finishing period from 55 to 90 kg liveweight, and resulted in reduced gain and poorer efficiency of feed utilization for the overall experiment from 6 kg initial weight. Carcasses from rapeseed meal-fed pigs were leaner. Gilt carcasses were leaner than barrow carcasses. With second-litter pigs, there were no significant differences associated with dietary treatment or sex. There were no significant differences in DE or ME or in DN and nitrogen retention between pigs receiving 0 or 8% rapeseed meal in either the starting diets at 6 weeks of age or the growing diets at 40 kg liveweight.


1982 ◽  
Vol 62 (1) ◽  
pp. 269-273 ◽  
Author(s):  
Y. K. GOH ◽  
A. SHIRES ◽  
A. R. ROBBLEE ◽  
D. R. CLANDININ

Two experiments were conducted to study the effects of supplementing broiler rations with a multiple cellulolytic enzymes system (Driselase) on the performance of chicks raised to 4 wk of age (exp. 1) and to 8 wk of age (exp. 2). Four broiler rations unsupplemented or supplemented with 0.03% Driselase were used in the study. One of the rations was based on soybean meal and wheat while the other three contained 20% rapeseed meal (produced from Regent, Candle and Turret cultivars of rapeseed) as a partial replacement for soybean meal. The results obtained in both experiments indicated a lack of response in body weight and feed conversion of the chicks to Driselase supplementation. In both experiments, the chicks receiving the rations containing rapeseed meal showed varying degrees of thyroid enlargement depending on the cultivar of rapeseed from which the meal was produced, with Turret meal causing the greatest increase in thyroid size. Key words: Driselase, cellulolytic enzymes, broilers, performance, rapeseed meal


1978 ◽  
Vol 58 (2) ◽  
pp. 203-208 ◽  
Author(s):  
A. J. LEWIS ◽  
F. X. AHERNE ◽  
R. T. HARDIN

Seventy-two crossbred gilts were used in an experiment to evaluate low glucosinolate rapeseed meal (RSM), derived from the cultivar Tower, as a partial or complete replacement for soybean meal (SBM) in diets for gilts from 20 kg liveweight through two gestation and lactation periods. The supplementary protein sources for the three dietary treatments were: (1) SBM; (2) a 50:50 mixture (on an isonitrogenous basis) of SBM and Tower RSM: and (3) Tower RSM. The gilts were fed diets containing 17% protein from 20 to 60 kg, and diets containing 15% protein from 60 kg until the end of the second lactation. Fifty-one animals completed two reproductive cycles. There were no significant differences in litter size and weight at birth or weaning, sow weight changes in gestation or lactation, or gestation length in either the first or second parity. The results indicate that Tower RSM (containing 0.98 mg/g total glucosinolates) may be used as a partial or complete replacement for SBM in the diets of pregnant and lactating swine for at least two reproductive cycles with no apparent reduction in sow reproductive performance.


1971 ◽  
Vol 51 (1) ◽  
pp. 225-232 ◽  
Author(s):  
H. S. SABEN ◽  
J. P. BOWLAND

At an average weight of 83 kg and age of 163 days, 32 gilts were allotted to four dietary treatments, 0, 4 or 8% solvent-extracted rapeseed meal (RM) throughout the experiment, or 8% RM fed for the first 100 days of gestation followed by 0% RM. The RM, of Brassica campestris origin and containing 2.40 g oxazolidinethione and 2.60 g isothiocyanates per kg meal, was added in substitution for isonitrogenous levels of soybean meal (SM) for two reproductive cycles. Feeding RM did not significantly influence daily gain or feed conversion efficiency from 83 kg to the first breeding or during the two gestation periods. No significant differences were noted in number of services to conception, length of gestation, number of pigs born or born alive, number of pigs weaned, litter birth weights or weaning weight, or pig birth weights or weaning weights. There was a trend toward reduced litter size from gilts and sows fed the diets containing RM. Changing the diet from 8% RM to 0% RM after 100 days of gestation did not influence reproductive performance. Lacombe × Yorkshire sows gained more from 83 kg live weight to the first breeding, had higher breeding weight in both gestation periods, and increased pig weaning weight for the second lactation period compared with Yorkshire sows. The latter sows had higher individual pig birth weights for the first reproductive cycle than the crossbred sows. The results indicate that a level of 8% commercial solvent-extracted RM of the type fed may be acceptable as a substitute for an isonitrogenous level of SM in the diets of gestating and lactating gilts and sows.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Anna Czech ◽  
Eugeniusz Ryszard Grela ◽  
Martyna Kiesz

AbstractThe aim of the study was to assess the effect of fermented dried soybean (FSBM) and/or fermented rapeseed meal (FRSM) in diets for weaned piglets on production results, nutrient digestibility, gastrointestinal tract histology, and the composition of the gut microbiota. Piglets in the control group received standard diets with soybean meal. Animals in all experimental groups received diets in which a portion of the soybean meal was replaced: in group FR—8% FRSM; in group FR/FS—6% FRSM and 2% FSBM; in group FS/FR—2% FRSM and 6% FSBM and in group FS—8% FSBM. The use of 8% FRSM or 6% FRSM and 2% FSBM in the piglet diets had a positive effect on average daily gains. Piglets from the FR and FR/FS groups had the highest feed conversion rate. Group FS/FR and FS piglets had significantly lower mortality and lower incidence of diarrhoea. Piglets fed a diet with the fermented components, in particular with 8% FRSM or 6% FRSM and 2% FSBM, exhibited a positive effect on the microbiological composition and histology of intestines, which resulted in improved nutrient digestibility coefficients (ATTD and AID).


2022 ◽  
Author(s):  
Hamilton Hisano ◽  
Pamela Souza de Pietro ◽  
Márcia Mayumi Ishikawa ◽  
Alex Júnio da Silva Cardoso ◽  
Arielle Cristina Arena

Abstract This study evaluated the apparent digestibility coefficient (ADC) of crambe meal (CM) and its potential to partially replace soybean meal (SM) protein in Nile tilapia diets. The ADC for dry matter, crude protein, ether extract, energy, amino acids, calcium and phosphorus of CM were assessed in fish (n=80; 65.30 ± 5.32 g). Subsequently, an 80-day feeding trial was conducted with Nile tilapia (n=140; 6.04 ± 0.25 g) randomly distributed in 20 experimental cages (70 L; seven fish cage-1) allocated in five circular tanks (1000 L) in recirculation water system, to evaluate the effects of replacement of SM by CM (0, 6, 12, 18 and 24% in isonitrogenous and isoenergetic diets) on growth, blood parameters, fillet yield and proximal composition. The CM shows good digestibility of protein (0.824) and amino acids (0.844) by Nile tilapia and its inclusion in the diet does not affect carcass and fillet yield or proximal composition. Fish fed diets with 24.0% of the SM replaced by CM showed the worst weight gain and feed conversion rate. The protein efficiency ratio decreased in fish fed diets with 12.0, 18.0 and 24.0% of the SM replaced by CM. Hemoglobin, mean corpuscular hemoglobin concentration, total plasma protein, glucose and alanine aminotransferase enzyme activity trend to increase at highest levels of CM in the diet. In conclusion, CM has potential to replace SM in Nile tilapia diets, due to high digestibility of protein and amino acids. However, anti-nutritional factors present in untreated CM interfere on the growth and nutrient utilization of Nile tilapia.


2020 ◽  
Vol 55 (1) ◽  
pp. 1-13
Author(s):  
S. Affedzie-obresi ◽  
G. Adu-Aboagye ◽  
E.K. Nkegbe ◽  
N. Asuming-Bediako ◽  
K.O. Ansah ◽  
...  

Feed cost has been a major challenge to the competitiveness of the poultry industry of Ghana due mainly to high cost of proteins. Insect larvae meals seem convenient alternatives however their use on commercial scale is unknown in Ghana. Three 8-week feeding trial using three isonitrogenous, isocaloric diets in a three-phase feeding strategy involving 1320 broiler DOCs was conducted. BSFLM was used as replacement for fishmeal and as partial replacement for soybean meal to determine its effect on broiler productivity, profitability and carcass measurements. The results indicated that replacing fishmeal with BSFLM significantly improved weight gain, feed conversion efficiency and production efficiency factor (PEF). No detrimental effect was observed on carcass and specific organ measurements. Using the partial budgeting approach on a 500-bird estimation an increase of one thousand, one hundred and eleven Ghana cedis (GH₵1,111.00) was obtained when the fishmeal was replaced with BSFLM. Also, an increase of four hundred and sixty-seven Ghana cedis (GH₵467.00) was estimated when soybean meal was partially replaced with BSFLM. It was concluded that BSFLM can be used to improve the productivity and profitability of broiler production.


1982 ◽  
Vol 62 (3) ◽  
pp. 869-875 ◽  
Author(s):  
H. W. HULAN ◽  
F. G. PROUDFOOT

Sorghum grain (SG) contained more crude protein (103.5 g/kg) and ash (17.0 g/kg) but less crude fiber (17.7 g/kg) and total lipid (22.6 g/kg) than corn. The SG contained 0.37% ± 0.02 tannin, had a higher apparent metabolizable energy value than corn or wheat and contained all of the amino acids considered essential for chickens at levels in general between those of corn and wheat. Two experiments were carried out to ascertain the nutritive value of SG as a partial replacement for corn and wheat in practical poultry diets using 320 male and 320 female Cobb chicks in each. Starter (finisher) diets fed from 0–21 days (22–42 days) contained the following levels of SG: 15 (19); 30 (39); 45 (58)%. The diets were isoenergic and isonitrogenous. The inclusion of up to 45% SG in the starter diet and up to 58% in the finisher diet had no significant effect on mortality, live body weight, feed conversion or percentage of grade A carcasses. Key words: Broiler chickens, sorghum grain, milo, diets


1979 ◽  
Vol 59 (3) ◽  
pp. 577-583 ◽  
Author(s):  
R. NARENDRAN ◽  
G. H. BOWMAN ◽  
S. J. SLINGER

An experiment was conducted during the late fall and winter months with 96 Yorkshire barrows and gilts to study the effects on pig performance of feeding corn-soybean meal (SBM) and lysine-HCl (0.1%) supplemented corn-SBM-Tower rapeseed meal (RSM) and corn-SBM-Candle RSM diets, in the form of mash (corn was medium-ground) and steam pellets. Average daily gain (ADG), feed intake, efficiency of feed conversion (feed to gain ratio, F/G) and carcass backfat thickness were measured in pigs reared from 23 kg to 91 kg liveweight. The energy level in the RSM diets was not adjusted to equal that in the corn-SBM diet. Pigs fed Tower RSM had a lower (P < 0.01) feed intake and backfat thickness and pigs fed Candle RSM had a lower (P < 0.01) ADG and feed intake and higher (P < 0.01) F/G compared to the pigs fed SBM. The pigs fed corn-SBM-Tower RSM had a higher (P < 0.01) ADG and feed intake and lower (P < 0.01) F/G ratio than those fed Candle RSM diets. Steam pelleting of the corn-SBM and corn-SBM-RSM diets improved ADG, feed intake and F/G of the pigs, with the effects being greatest for the RSM diets.


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