The means and standard deviations and standard values of total cholesterol, β-lipoprotein, and neutral fat were 144.46±43.98 and 56.50-232.42mg/dl, 91.62±25.70 and 40.22-143.02mg/dl, and 37.77±9.28 and 19.21-56.33mg/dl, respectively, when estimated in healthy house dogs selected from among 297 dogs subjected to a hematological screening test by the RABA system. The standard values of the three substances were about two times as high in 20 house dogs affected with obesity as in those healthy dogs. They were a little larger in 14 house dogs affected with emaciation than in those healthy dogs.
The plasma concentrations of calcium, magnesium, inorganic phosphorus, and parathyroid hormone were measured in 15 parturient cows between a week before and after parturition. In 3 cows (affected with parturient hypocalcemia), the calcium concentration was at least 3.7, 3.9, and 5.8mg/dl within 24 hours after parturition. The inorganic phosphorus concentration also decreased with the decrease in calcium level. No changes were observed in magnesium concentration. Parathyroid hormone increased markedly in concentration in two of the cows after parturition. The parathyroid gland responded poorly to the decrement of plasma calcium level in the remaining cow on which no ordinary treatment was effective. Therefore, it was suggested that hypoparathyroidism might be detected from among paretic cows in the field.
A test of uremia was devised for the postmortem examination of meat inspection. In it, muscle was used as a sample to estimate the amount of ammonia produced from muscle decomposed by urease. The urea nitrogen determined by this test was compared with those determined in the serum and the ophthalmic chamber fluid by the conventional methods. As a result, there were significant correlations between the former and both of the latter. A sufficient practicability of the new test was demonstrated.
Dairy cows showing a milk fat rate of less than 2.5% were significantly lower in the pH of the gastric juice, intraruminal protozoal count, and the crude fiber rate of the diet than normal control cows. When they were fed roughage of good quality and concentrates of different kinds, they presented a particularly distinct improvement of the acetic acid/propionic acid ratio of the gastric juice, which led to an increase in milk fat rate.
Thirty-three cattle suffering from hematuria encountered for the past 9 years were examined for urocystic tumors. As a result, angioma was found in 29 cattle, transitional-epithelial carcinoma in 16, vascular endothelioma in 8, papilloma in 5, adenocarcinoma in 3, adenoma in 2, squamous-epithelial carcinoma in one, and fibroma in one. Two or more of these urocystic tumors were noticed in 18 cattle. Histopathological changes observed were hyperplasia and various metaplastic changes of epithelial cells, proliferation and dilatation of peripheral blood vessels, and various hemorrhagic alterations.