Effects of excess and deficiency of dietary methionine on mixed-function oxidase system of hepatic microsomes in male broilers.
1. Three experiments were conducted to determine the effect of dietary methionine levels on the hepatic microsomal mixed-function oxidase (MFO) system in male broiler chicks. 2. The level of dietary methionine for the highest growth coincided with that for the MFO activity. 3. Dietary methionine deficiency reduced MFO activity, but the reduction effect was not constant. 4. Dietary methionine excess also reduced MFO activity, even though growth rate was held at a maximum.
Department of Animal Science, Faculty of Agriculture, Tohoku University, Sendai-shi, Japan.
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K
Takahashi
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Horiguchi
D000818:Animals; D001835:Body Weight / Q000187:drug effects; D002645:Chickens / Q000378:metabolism*; D004032:Diet; D004435:Eating; D008099:Liver / Q000033:anatomy & histology / Q000201:enzymology* / Q000648:ultrastructure; D008297:Male; D008715:Methionine / Q000008:administration & dosage* / Q000494:pharmacology; D008861:Microsomes / Q000201:enzymology*; D009929:Organ Size / Q000187:drug effects; D000587:Oxidoreductases Acting on CH-NH Group Donors / Q000378:metabolism*; D012727:Sex Characteristics
D008715:Methionine; D000587:Oxidoreductases Acting on CH-NH Group Donors; C019668:amine oxidase, mixed function