Pituitary and Thyroid Hormone Responses of Heifers After Ferulic Acid Administration

I evaluated effects of ferulic acid on concentrations of endocrine hormones of eight Holstein heifers. Cattle were fitted with indwelling jugular cannulae 24h before experimentation. After control blood samples were taken, animals were assigned randomly to groups of four and infused with 100 or 500m...

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Bibliographic Details
Published inJournal of dairy science Vol. 66; no. 3; pp. 624 - 629
Main Author Gorewit, R.C.
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.03.1983
Am Dairy Sci Assoc
American Dairy Science Association
Subjects
Animals
Cattle - blood
Cattle Diseases - blood
Cholagogues and Choleretics - pharmacology
Cinnamates - pharmacology
Coumaric Acids - pharmacology
Ethanol - pharmacology
Female
Growth Hormone - blood
Hemorrhage - blood
Hemorrhage - veterinary
Luteinizing Hormone - blood
Pituitary Hormones, Anterior - blood
Prolactin - blood
Thyroid Hormones - blood
Thyroxine - blood
Triiodothyronine - blood
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Summary:I evaluated effects of ferulic acid on concentrations of endocrine hormones of eight Holstein heifers. Cattle were fitted with indwelling jugular cannulae 24h before experimentation. After control blood samples were taken, animals were assigned randomly to groups of four and infused with 100 or 500mg of ferulic acid. Prolactin, growth hormone, luteinizing hormone, and thyroid hormones were measured in sera from blood samples. Blood sampling or ethanol infusion did not affect serum concentrations of prolactin. Serum prolactin was elevated 5min after infusion of ferulic acid. Peak serum prolactin concentrations were 15min after 100mg of ferulic acid and between 10 and 30min after 500mg ferulic acid. Prolactin remained high until 120min post drug administration. Control bleeding and ethanol administration did not alter serum growth hormone concentrations. Serum growth hormone concentrations were elevated slightly by ferulic acid. The increase was 5min after drug administration. Baseline concentrations were established 60 to 90min after administration. Ferulic acid did not affect luteinizing hormone or thyroid hormones. Ferulic acid, a constituent of corn and wheat germ, may affect release of pituitary hormones in cattle.
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ISSN:0022-0302
1525-3198
DOI:10.3168/jds.S0022-0302(83)81834-7