Distribution of arsenic (As), fluorine (F), cadmium (Cd), lead (Pb), mercury (Hg) and copper (Cu) in the muscle, skin, liver, heart, kidney and feather of meat-type cnicks was determined after feeding experimental diets containing various levels of salts of these elements to one-day-old chicks for 8 weeks.
Sensitivity limit of determination of As, F, Cd, Pd, Hg and Cu was 0.1, 1.0, 0.01, 0.1, 0.01 and 0.1ppm, respectively. Content of As, F, Cd, Pb and Cu in the basal diet mainly composed of yellow corn, soybean meal, fish meal and alfalfa meal was 0.1, 120, 0.06, 0.4 and 8.7ppm, respectively. Mercury was not detected in the diet.
With the supplementation of As at the level of 7.9ppm or less, small amount of less than 0.36ppm was determined in the edible parts.
Content of Cd and Cu in the edible parts of the chicks was proportional to the level in the diet. The highest value of Cd, i. e., 2.36ppm, was observed in the kidney and that of Cu, i. e., 5.62ppm, was observed in the liver of the chicks fed the diets with supplementation of the highest level of these elements, respectively.
Only small amount of mercury, less than 0.02ppm, was found in the muscle, heart, gizzard and skin of the chicks fed the diet containg 0.49ppm or less of supplemented Hg.
Content of Hg in the liver was slightly higer, being less than 0.06ppm. Content of Hg in the kidney seemed to be proportional to dietary Hg level, and to reach plateau at the dietary level higher than 0.13ppm.
Content of the elements except Cd and Hg in the feather was much higher than that in the edible parts of the chiks. The highest level of As. F. Pb and Cu was 3.14, 24.6, 0.2 and 8.34ppm, respectively, in the feather of the chicks fed the diets containing high level of the elements. The highest level of Cd and Hg in the feather was 0.13 and 0.04ppm, respectively.

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Serum albumin and amylase isozyme patterns were analyzed in two domesticated strains (strain I and II) and a wild strain (strain III) of the Guinea fowl by means of starch gel and polyacrylamide gel electrophoresis.
Three phenotypes of serum albumin were recognized: Alb A (a fast band), B (a slow band) and AB. Of the total of 165 individuals examined of the strain I, 32 individuals (19.4% of the total number) were Alb A, 88 (53.3%) Alb AB and 45 (27.3%) Alb B. While in the strain II, all of the individuals dealt with, 75 in number, were Alb B. In the strain III 3 individuals examined were Alb A and Alb B. Mating experiments indicated that these phenotypes are controlled by autosomal codominant genes symbolyzed Alb^A and Alb^B. Gene frequencies of Alb^A and Alb^B were 0.461 and 0.539, respectively, in the strain I, 0.000 and 1.000 in II, and 0.667 and 0.333 in III.
In the isozyme patterns of serum amylase, five phenotypes were distinguished in the three strains: Amy A (a slow main band), B (a main band between A and C), C (a fast main band), AB and BC. From the results of mating experiments it was concluded that these phenotypes are controlled by three autosomal Codominant alleles, Amy^A, Amy^B and Amy^C. Frequencies of Amy^A, Amy^B, and Amy^C were 0.042, 0.958 and 0.000, respectively, in the strain I, 0.913, 0.087 and 0.000 in II, and 0.333, 0.167 and 0.500 in III.

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[in Japanese]

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[in Japanese]

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Quail erythrocyte glucosephosphate isomerase (PGI) was examined by the use of starch-gel electrophoresis. From mating experiments, it was clarified that the PGI electrophoretic patterns were under control of two codominant alleles, PGI^F and PGI^S at an autosomal locus. Frequency of the gene PGI^F which determined the band with faster mobility towards the cathode was 0.12 in the laboratory quail population. All tissues derived from an individual showed same electrophoretic pattern, although differences in PGI activity between tissues were observed.

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