A total of 88 normal cats were divided into 5 groups, (1) newborn kittens (0-1 week old), (2) sucklings (2-6 weeks old), (3) weanling (7-12 weeks old), (4) young adults (4-10 months old), and (5) adults (over 11 months old).
Erythrocyte and leukocyte counts were raised with the advance in age. In the differential leukocyte count, lymphocytes were more than neutrophils in groups 1 and 2. Then neutrophils were main components of the leukocytes. As a result, the N/L ratio reversed in group 3. The highest count of eosinophils was observed in group 2 and that of basophils in group 1. Both cells decreased the advance in age.
In the myelogram, total nucleated cells showed a tendency to increase with the advance in age. Their highest count was seen in group 4. The erythrocytic series showed highest counts in group 1 to decrease with the advance in age. The myelocytic series fluctuated contrarily. Consequently, crossing of M/E ratio was observed in group 2. The lymphocyte count was relatively high in groups with 1 to 3.

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Clinical and clinicopathological observations were carried out on a heifer 25 months old which showed poor growth for about one year. The main symptoms were marked emaciation, poor appetite, diarrhea, polydypsia and polyuria. Biochemical studies of blood and urine indicated persistent hyperglycemia, intolerance in the glucose tolerance test, glucosuria, and ketonuria.
Pathological examination revealed atrophy of islets of Langerhans and degeneration and disappearance of B cells in the pancreas. From these findings a diagnosis of diabetes mellitus was made in this heifer.

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The pupose of this study was to validate effects of administered vitamin D₃ on Ca metabolism o cows during pre- and post-parturition. Ten Holstein-Friesian cows were divided into two groups, a control group of six and an experimental group of four. This group was injected intramuscularly with 10 million I.U. of vitamin D₃ 2-6 days before parturition.
The amount of apparent Ca absorption was significantly larger in the experimental group than in the control at parturition and 1-2 days after parturition. The mean amount of milk Ca secretion was smaller in that group than in the control. The amount of Ca retention was significantly larger in the experimental group than in the control at parturition and 1 day after parturition. It was suggested that this increase in Ca retention might have resulted from the increase in Ca absorption from the intestinal tract and the decrease in milk Ca secretion.

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Erysipelothrix rhusiopathiae was isolated from 62 of 94 swine suffering from arthritis. Its isolation rates were43% from the synovial fluid of the joint, 16% from the lymph node, and 1% from the kidney. Of 50 strains examined, 38 belonged to serovar 2, and 10 to serovar 1. The 50 strains were all sensitive to penicillin, erythromycin, oleandomycin, lincomycin, and chloramphenicol, but resistant to kanamycin, gentamicin, colistin, and sulfisoxazole. They were sensitive to tetracycline, except three which were resistant.

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Fattening cattle were fed more than 1 kg of bark of needle-leaved trees, as a substitute for ricestraw, for a long time. As a result, many clumps and balls of bark fibers were formed with villi as nuclei in the rumen. They often induced pyloric obstruction, tympanites, and anorexia. In cattle fed raw bark of needle-leaved trees, chronic eosinophilic abomasitis and enteritis prevailed and there were a decrease in the number of protozoa (especially, large ones) harbored and the synthesis in the rumen and a fall in the rate of milk fat.
When bark feeding was suspended, clumps of bark fibers disappeared, but balls did not and villi remained in injured condition. The bark and the balls of bark fibers were particularly rich in ADF and ADF lignin. No marked changes were found in the color, odor, or quality of meat produced from the cattle involved.

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A rare case of tumor of porcine pancreas was found in a four-year-old, good breeding Duroc sow weighing 250 kg. It had delivered offspring two times without abnormalities. After the second delivery, it showed weak sexual excitement and sterility for 6 months. It was well-constructed, but emaciated with rough coat and several crusts due to trauma. Necropsy revealed the irregularly enlarged pancreas completely replaced with neoplastic nodules of various sizes. Spheroidal secondary tumor masses were disseminated on the serosal surfaces of spleen, omentum, liver, stomach and diaphragm. No tumor nodules were seen on the intestinal sv, rosa or mesentery.
From histological findings, this tumor was diagnosed as well-differentiated papillotubular adenocarcinoma derived from the pancreatic duct.

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