p. 241 - 250

INFLUENCE OF SEWEED MEAL ON THE THYROID FUNCTION
AND MILK PRODUCTION OF DAIRY COWS


Teodoru Vitalie
Central Institute for Technical Documentation, Bucharest

Maria Stadniciuc
Institut Roumain de Recherches Marines Constanta

Alexandru Lungu and Graziella Nicolau
Institut of Endrocrinology, Bucharest

Dumitru Petcu
Palas Experimental Station, Constanta

Vasilica Manciu
Agricultural Production Cooperative, Leresti-Arges

Abstract
Study of the effect of seaweed in rations for dairy cows
on thyroid function and milk production. Testings were carried
out in two diferent regions: an iodine-providing (non-goitrogenic)
zone (Palas-Constantza) and an iodine-deficient (goitrogenic) zone
(Leresi-Arges). The estimation of thyroid activity was carried out
by dosage of protein bound iodine (P.B.I.)in blood and milk. There
was established that in the iodine deficient area, seaweed added to
food determines an averange increase in P.B.I.: with 88.37 p.c. in
milk and 75.26 p.c. in blood. The daily milk production of cows 
which received seaweed meal in their rations rose with 8.63 p.c.