Effect of graded levels of raw and processed rapeseed on feed digestibility and nutrient utilization in young pigs

Aumaı̂tre, A.; Bourdon, D.; Peiniau, J.; Freire, JM

doi:10.1016/0377-8401(89)90149-1

Cited by 15 publications

(10 citation statements)

References 14 publications

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“…One such substitute source is RSM. However there is various conflicting data with regard to maximum inclusion levels of RSM in pig diets, with permissive inclusion rates of 200 g/kg reported in some studies (Aumaitre et al 1989;Siljander-Rasi et al 1996), while in contrast other studies have found an inclusion rate of 100-200 g/kg reduced performance characteristics (Kennelly et al 1978;Keady and O'Doherty 1996). Such variability has been attributed to the presence of anti-nutritional factors such as glucosinolates, which are found to affect the nutritional value of RSM as a protein source for pigs (Mawson et al 1993).…”

Section: Discussionmentioning

confidence: 94%

Influence of incrementally substituting dietary soya bean meal for rapeseed meal on nutrient digestibility, nitrogen excretion, growth performance and ammonia emissions from growing-finishing pigs

McDonnell

O’Shea

Figat

et al. 2010

Archives of Animal Nutrition

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A completely randomised design experiment was performed to examine the effects of replacing different levels of soya bean meal (SBM) with rapeseed meal (RSM) on the growth performance, carcass characteristics, apparent nutrient digestibility, nitrogen (N) balance and manure ammonia emissions of growing-finishing pigs. Pigs (n = 336; mean live weight 42.1 kg) were assigned to one of four dietary treatments containing per kg diet: 210 g SBM; 140 g SBM and 70 g RSM; 70 g SBM and 140 g RSM; and 210 g RSM. All diets were formulated on an ileal digestible amino acid, net energy and available phosphorus basis. There was no significant treatment effect on average daily gain, feed intake, feed conversion ratio and carcass characteristics. There was a linear decrease in gross energy digestibility (p < 0.01) as RSM increased at the expense of SBM in the diet. There was a linear decrease in urinary N excretion (p < 0.01), N digestibility (p < 0.05), total N excretion (p < 0.05) and N retention (p < 0.05) with increasing levels of RSM. There was no effect of dietary treatment on manure ammonia emissions. The results of this study indicate that RSM can be used as a direct replacement for SBM with no associated depression in performance, when formulated on an ileal digestible amino acid and net energy basis. Consumption of diets containing incremental levels of RSM linearly decreased urinary N and total N excretion, reflecting the associated decrease in crude protein concentrations.

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Section: Discussionmentioning

confidence: 94%

Influence of incrementally substituting dietary soya bean meal for rapeseed meal on nutrient digestibility, nitrogen excretion, growth performance and ammonia emissions from growing-finishing pigs

McDonnell

O’Shea

Figat

et al. 2010

Archives of Animal Nutrition

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“…Based on the conducted investigation on the potential application of dry extrusion processing of mixture consisted from waste products of rapeseed in combination with maize, it can be noticed that the feed mixture prepared in this manner has showed satisfying nutritional and chemical profile with a significant reduction in the content of glucosinolates, which is approximately 24.08% (from 10.30 to 7.82 mmol/g). Reductions of total glucosinolate content (19-23%) was recorded by Smithard and Eyre (1986), applying the procedure of dry extrusion (135 °C) on a mixture of rapeseed and barley as well on mixture of rapeseed and sunflower meal, while the application of dry extrusion on rapeseed achieved reduction of glucosinolates content of 19% (Aumaitre et al, 1989).…”

Section: Resultsmentioning

confidence: 99%

Valorization of rapeseed grain by-products

Kormanjos¹,

Popović²,

Kostadinović³

et al. 2016

Food & Feed Res

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After technological processing of rapeseed significant amounts of useful and useless waste products stand out. The aim of the present study was to investigate the chemical composition, content of glucosinolates, microbiological safety, and presence of mycotoxins and heavy element contents of useful rapeseed by-products which are intended for animal nutrition. Feed components as well as complete mixtures for animal feed must be safe and in accordance with the requirements of the current national regulation. The investigated useful by-products contained significant amounts of proteins (21.80%) and fat (33.78%). As a part of the research, extrusion of the mixture containing rapeseed by-products and maize in the ratio of 50:50% was performed. The process of extrusion was carried out at 130 °C. Based on the obtained results it was noticed that the investigated extruded mixture is a convenient protein-energy supplement suitable for animal feed production with significantly reduced glucosinolate content (from 10.30 to 7.82 μmol/g). It was also observed that the extrusion of feed mixture led to the reduction of the number of microorganisms which ensures safe feedstuff for animal feed production.

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“…Rat diet containing 100 g crambe meal in each kg DM resulted in poor gain and increased thyroid (Wallig et al, 2002). Glucosinolates-associated deleterious effects are due to change in thyroid morphology, resulting in irregular follicle size, decreased colloid and sloughing of follicular cells; however this glucosinolate level did not affect blood parameters (Aumaitre et al, 1989;Bjerg et al, 1989). Reduced CTTAD of DM was due to negative effect of TGLS on digestion (Duncan and Milne, 1990), whereas the increased CTTAD of protein on MM incorporation could be the influence of better amino acid balance of MM (De Blas et al, 1984).…”

Section: Effect Of Dietary Glucosinolates On Growing Rabbitsmentioning

confidence: 99%

Caecal fermentation characteristics, blood composition and growth of rabbits on substitution of soya-bean meal by unconventional high-glucosinolate mustard (Brassica juncea) meal as protein supplement

Tripathi

Mishra

Mondal

et al. 2008

Animal

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Effect of graded levels of high-glucosinolate mustard (Brassica juncea) meal as substitute of soya-bean meal (SBM) in broiler rabbit diets was studied. Forty weaning rabbits of Soviet Chinchilla and White Giant breed were randomly allocated to one of four experimental diets containing mustard meal (MM) 0, 80, 160 and 245 g/kg. The experiment lasted for 8 weeks. MM had 54.8 mg total glucosinolates (TGLSs) per g dry matter (DM). Diets had TGLS 3.8, 8.4 and 11.98 mg/g DM in 80, 160 and 245 g MM diets, respectively. MM-incorporated diets had higher digestible and linearly (P , 0.01) higher metabolisable energy (ME) content. However, the effect on total tract apparent digestibility of DM, and crude protein was quadratic. Average daily gain (ADG) reduced (P , 0.05) linearly with increasing MM levels in diet, still 80 and 160 g MM diets had similar ADG compared to that of SBM diet. Caecum weight reduced linearly (P , 0.05) with increasing MM levels in diet. The pH of caecal content ranged between 5.85 and 6.19, total N between 1.19 and 1.48 (g per 100 g) and total volatile fatty acids between 4.7 and 5.8 mmol per 100 g, and they were not statistically different. NH 3 -N ranged between 31.2 and 39.0 mg per 100 ml, and reduced linearly (P , 0.05) while trichloroacetic acidprecipitable nitrogen increased linearly (P , 0.01, ranged between 114 and 247 mg per 100 ml) with increasing MM levels in diet. Blood haemoglobin, packed cell volume and lymphocytes were higher (quadratic effects, P , 0.05) on 245 MM diet, whereas white blood cell count reduced linearly (P , 0.01). Serum aspartate aminotransferase increased linearly (P , 0.01) while alanine aminotransferase and alkaline phosphatase activity, protein, erythrocytes sedimentation rate and red blood cell counts were not affected by MM. Serum Cu, Na and K content increased linearly (P , 0.05) with increasing MM levels. Liver Cu concentration showed quadratic (P , 0.05) increase. Rabbits tolerated 8.4 mg TGLS per g diet (160 g MM per kg) during active growth without any apparent effect on health and growth. It is concluded that MM can replace up to 66% SBM protein in rabbit feeding, whereas complete replacement of SBM with MM reduced feed intake and ADG by 23% and 13%, respectively. Further studies are required to confirm these inclusion levels and glucosinolate tolerance of rabbits.

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Effect of graded levels of raw and processed rapeseed on feed digestibility and nutrient utilization in young pigs

Cited by 15 publications

References 14 publications

Influence of incrementally substituting dietary soya bean meal for rapeseed meal on nutrient digestibility, nitrogen excretion, growth performance and ammonia emissions from growing-finishing pigs

Influence of incrementally substituting dietary soya bean meal for rapeseed meal on nutrient digestibility, nitrogen excretion, growth performance and ammonia emissions from growing-finishing pigs

Valorization of rapeseed grain by-products

Caecal fermentation characteristics, blood composition and growth of rabbits on substitution of soya-bean meal by unconventional high-glucosinolate mustard (Brassica juncea) meal as protein supplement

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