Effect Of Cod Liver Oil Research Articles

The Effect of Cod Liver Oil Upon Flavor in Poultry Meat

Since cod liver oil has come into rather general use in poultry feeding, there has been considerable speculation concerning the effect of cod liver oil upon the flavor of poultry meat. Any unpleasant flavor in poultry meat would naturally have considerable effect upon market demand, and, therefore, market price.So far as we are aware, no definite tests along this line have been reported, although it has occasionally been stated that chickens slaughtered immediately following cod liver oil feeding would have a “fishy” taste. We therefore undertook these studies in order to get some definite idea of the degree to which different levels of cod liver oil in the diet would influence the flavor of poultry meat, as well as to determine the persistency of such flavor after the discontinuance of cod liver oil from the diet.EXPERIMENTALThirty White Leghorn chickens were used in this work. They were reared .

THE TREATMENT OF INFANTILE TETANY WITH ULTRAVIOLET RADIATION

As a result of the many investigations on the pathogenesis of infantile tetany, various remedial agents have been suggested for its treatment. Temporary starvation, catharsis and change from cow's milk to maternal milk have all been employed, but at present are usually considered accessory to more potent measures. The effect of cod liver oil with and without phosphorus has been more completely studied, and gradual but rather slow improvement demonstrated. Howland and Marriott,¹in 1918, placed the therapeutic use of calcium on a scientific basis by showing that, in active infantile tetany, the calcium concentration in the blood serum is uniformly low and that this concentration can be increased by the administration of sufficient doses of calcium salts. It is a recognized fact that, even with combined cod liver oil and calcium therapy, the return of the serum calcium to a normal figure may be very slow, although the

CALCIUM AND PHOSPHORUS IN THE SERUM IN RELATION TO RICKETS

At the meeting of the American Pediatric Society held in June, 1920, one of us, in discussing a paper by Park and Howland¹on the effect of cod liver oil on rachitic bones as demonstrated by the roentgenogram, reported that we had found the concentration of the inorganic phosphorus of the serum to be low in rickets. The amount was definitely increased following the administration of cod liver oil. The present communication represents the work on which these statements were based. Rickets is a disease characterized by a deficient deposition of calcium salts in the bones themselves and in the intercellular cartilage of the epiphyses. Various views have been expressed and various theories advanced to explain the failure of deposition. We have approached the question from the standpoint of the inorganic chemical composition of the blood serum. Inasmuch as the salts of the bones consist preponderantly of calcium phosphate,

THE EFFECT OF COD LIVER OIL ON GROWTH IN A CASE OF "INTESTINAL INFANTILISM"

Greatly retarded growth, amounting to a condition of infantilism, is occasionally seen as a result of certain prolonged derangements of the functions of digestion, as well as a consequence of organic changes in these organs. The exact nature of the changes which bring about arrested growth in the first mentioned group of cases is as yet little understood, but it has generally been connected with disturbances in the metabolism of calcium, magnesium and phosphorus. Negative balances in these substances have repeatedly been found in children belonging to this class. Because of the demonstrated effect of cod liver oil in increasing the retention of these inorganic salts in other conditions, particularly in rickets, it was determined to try its effect on the patient whose history is here reported, in whom the diagnosis of infantilism of intestinal origin was tentatively made. REPORT OF CASE History .—Elizabeth R., aged 8½ years, came first

Hœmoptysis as a Sign of Tubercle; Curability of Consumption; Effect of Cod-liver Oil, &c

Hœmoptysis as a Sign of Tubercle; Curability of Consumption; Effect of Cod-liver Oil, &c