Rapeseed meal‐glucosinolates and their antinutritional effects Part 4. Goitrogenicity and internal organs abnormalities in animals

Mawson, R.; Heaney, Robert K.; Zduńczyk, Zenon; Kozłowska, H.

doi:10.1002/food.19940380210

Cited by 84 publications

(59 citation statements)

References 72 publications

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“…Increased discharge of prolactin provokes thyrotropin-releasing hormone (TRH) within the system of the negative feedback control into hypothyroidism (Aron et al, 1997). Pathohistological findings in chicks involved in our experiment agree fully with the findings of Rotkiewicz et al (1990), Chrappa et al (1991), Mawson et al (1994) and Khan et al (1996), who fed their chicks with diets containing 10%, 15% and more, respectively, thus achieving a significant goitrogenic effect of glucosinolates contained in rapeseed meal. The results differ from those obtained by Kloss et al (1994), who observed no pathohistological changes in internal organs of chicks fed on 10% of crambe (Crambe abyssinica) meal per ration.…”

Section: Discussionsupporting

confidence: 81%

Influence of rapeseed meal on productivity and health of broiler chicks

Janječić

Grbeša

Mužic

2002

Acta Veterinaria Hungarica

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Research was focussed on investigating the influence of different quantities (0, 10, 20 and 30%) of rapeseed meal (RM), 00-cultivar Silvia on production results, as well as on the morphological and pathohistological changes in the internal organs of chicks during the course of the experiment, measured on the 21st and 42nd days of the 42-day experiment. The experiment involved 120 chicks divided into four groups: a control group (C) and three experimental groups (E 1-3 ). It was found that chicks in Groups C, E 1 and E 2 realised significantly (P < 0.05) higher gains than those in Group E 3 , both after the test period and at the end of the experiment. No significant differences with regard to feed conversion were found between groups of chicks. Throughout the experiment chicks in Groups E 1-3 were found to have a significantly (P < 0.05) heavier liver. Compared to Groups E 1-3, Group C chicks had a significantly (P < 0.05) heavier gizzard after 21 days, but following the finisher diet Group E 3 had a significantly (P < 0.05) lighter gizzard. Compared with birds in Group C, those in Groups E 2-3 had significantly heavier (P < 0.05) unevacuated intestines when fed the starter diet, and those in Groups E 1-2 showed a similar result when fed the finisher diet. Chicks in Group E 3 had a significantly lower grill weight than those in Groups C, E 1 and E 2 , both in the first half of the experiment and at the end. The starter diet did not result in any differences in the quantity of abdominal fat among groups, but following the finisher diet Groups E 2-3 showed significantly less abdominal fat in comparison to Groups C and E 1 (P < 0.05). Group C showed a significantly higher carcass yield than Groups E 1-3 (P < 0.05) in the first half of the experiment and at the end. Groups E 1-3 manifested a slight to medium hypertrophy of thyroid epithelial tissue as well as slight thymus hypertrophy and slight atrophy of the cloacal bursa follicles.

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Section: Discussionsupporting

confidence: 81%

Influence of rapeseed meal on productivity and health of broiler chicks

Janječić

Grbeša

Mužic

2002

Acta Veterinaria Hungarica

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“…However, rapeseed is characterized by a high content of glucosinolates. Glucosinolate intake has been found to decrease the utilization of iodine in the thyroid gland, resulting in low levels of triiodothyronine and thyroxine [17, 18]. In our previous experiments, Tvrdá et al [19] found that the substitution of soybean (Glycine max) meal with 00-quality DRS (representing 14% of the total diet) in rat diets did not result in any harmful effects on the biochemical or hematological response of the rats.…”

Section: Introductionmentioning

confidence: 89%

The Response of Macro- and Micronutrient Nutrient Status and Biochemical Processes in Rats Fed on a Diet with Selenium-Enriched Defatted Rapeseed and/or Vitamin E Supplementation

Rýdlová

Růnová

Száková

et al. 2017

BioMed Research International

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The response of nutrient status and biochemical processes in (i) Wistar and (ii) spontaneously hypertensive (SHR) rats upon dietary intake of selenium- (Se-) enriched defatted rapeseed (DRS) and/or vitamin E fortification was examined to assess the health benefit of DRS in animal nutrition. Twenty-four individuals of each type of rat were used: The control group was fed with an untreated diet (Diet A). In Diets B and C, soybean meal was replaced with defatted DRS, which comprised 14% of the total diet. The selenized DRS application resulted in ~3-fold increase of Se content in the diet. Diet C was also fortified with the addition of vitamin E, increasing the natural content by 30%. The Se content of the blood and kidneys tended to increase in the DRS groups, where the changes were significant (P < 0.05) only in the case of SHR rats. The iodine (I) content and the proportion of iodide in rat livers indicated a lower transformation rate of iodide into organoiodine compounds compared to the control. Slight and ambiguous alterations in the antioxidative response of the rat were observed in the DRS groups, but the addition of vitamin E to the diet helped to moderate these effects.

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“…The glucosinolates and their hydrolysis products can negatively affect the thyroidal functions and the feed acceptance because of their bitter taste, from there the feed intake and correspondingly the fish growth performance (Bell, 1993;Mawson et al, 1994;Burel et al, 2000;Burel et al, 2001). The phenolic acid such as sinapic acid causes also a bitter taste.…”

Section: Process Designmentioning

confidence: 99%

Rapeseed use in aquaculture

Adem

Tressel

Pudel

et al. 2014

OCL

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-The main problem of the aquaculture sector is the provision of suitable and sufficient fish feed, because the most important protein source in aquaculture, the fish meal, is a limited resource. Due to their high nutritional value the rapeseed proteins have great potential as an alternative protein source for the fish nutrition. Therefore, the aim of this work is to develop a manufacturing process of high quality rapeseed protein concentrates, which can replace the limited marine resource. For this purpose, small pilot scale processing procedures were performed to produce a rapeseed protein concentrate (RPC). The meal for protein extraction was prepared by gentle meal processing. Rapeseed protein fractions were prepared by an aqueous extraction procedure. The obtained protein solution is further purified and then dried. The investigated rapeseed protein extraction process provides RPC with high nutritional value and low levels of antinutritional factors. From the nutritional point of view the produced RPC can be compared with the fishmeal. Its amino acid profile reflects the amino acid demands of fish. The obtained RPC was utilized for experimental setups of fish meal replacement in diets for rainbow trout, turbot, common carp and wels catfish. Experimental results from the conducted feeding trials demonstrate an enormous potential of RPC as protein source in aquafeeds. The highest fishmeal replacement level (up to 100%) was observed in the feeding trials with rainbow trout. Therefore, especially in the nutrition of rainbow trout, RPC was identified as an excellent fishmeal alternative.

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Rapeseed meal‐glucosinolates and their antinutritional effects Part 4. Goitrogenicity and internal organs abnormalities in animals

Cited by 84 publications

References 72 publications

Influence of rapeseed meal on productivity and health of broiler chicks

Influence of rapeseed meal on productivity and health of broiler chicks

The Response of Macro- and Micronutrient Nutrient Status and Biochemical Processes in Rats Fed on a Diet with Selenium-Enriched Defatted Rapeseed and/or Vitamin E Supplementation

Rapeseed use in aquaculture

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