[Effects of rapeseed constituents on the organism]
1996
Gutzwiller, A. (Eidg. Forschungsanstalt fuer Nutztiere (RAP), Posieux (Switzerland))
In several feeding trials the influence of low glucosinolate rapeseed meal on the organisms of ruminants and pigs was studied. Rapeseed meal intake caused a several-fold increase of plasma thiocyanate concentration in pigs, goats, and cattle. Milk thiocyanate concentration in dairy cows which received on average 1.45 kg of rapeseed per day during the winter feeding period was about twice as high as in control cows, but was comparable to the thiocyanate content found in the milk of cows on pasture whose feed contained no cruciferous plants. Rapeseed feeding did not influence somatic cell count in the milk of the cows. Thyroid weight was increased up to 1.5 times in fattening pigs when the diet contained up to 15 % rapeseed meal and 1.2 times in newborn piglets when the diet of the sows contained 8 % rapeseed meal. Feeding rapeseed did not affect plasma thyroxine concentration in cattle, goats, and weaned piglets, but fattening pigs being fed rations containing 5 and 15 % rapeseed meal respectively had slightly lower plasma T4 concentrations than control animals
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