[The content of Hb in the blood and of different constituents in the plasma of lambs with low and normal increase in body mass]. / Untersuchungen über den Gehalt an Hb im Blut sowie an verschiedenen Bestandteilen im Plasma von Lämmern mit niedriger sowie mit normaler Zunahme an Körpermasse.

In lambs with a very restricted intake of nutrients and an increase of the body mass of less than 60 g per day (group A) and in those with an increase of more than 220 g/day (group B), analyses of components of the blood and the plasma were performed at certain intervals. In the lambs of group A an anemia developed in the course of 77 days. The concentrations of alpha-amino-N, non-protein-N, urea, glucose and insulin as well as the activity of the alkaline phosphatase of the plasma of the lambs of group A were always lower than those of group B. The beta-hydroxybutyrate concentration of the lambs of group A on the 7th and 21st day of the experiment was higher than that of group B. The concentrations of inorganic phosphate and iron in the plasma of group A at most points during the study were lower than that in group B.

[The effect of a restriction of the feed intake on the composition of the blood and on the development and composition of different tissues of sheep during growth. 2. The development of different tissues and the concentration of protein, DNA and RNA]. / Untersuchungen über den Einfluss einer Beschränkung der Nährstoffaufnahme auf die Zusammensetzung des Blutes sowie auf die Entwicklung und Zusammensetzung verschiedener Gewebe von Schafen während des Wachstums. 2. Mitteilung: Die Entwicklung verschiedener Gewebe sowie die Konzentration an Protein, an DNA und an RNA.

The concentration of protein in the cerebrum of sheep after a period of feed restriction (group 2) was lower (94.5 +/- 10.2) than in normally fed sheep of group 4 (101.4 +/- 9.4 mg/g wet weight). In the group 2 the concentration of protein in the M. longissimus dorsi and in the M. semimembranosus was also smaller. A high DNA-concentration was determined in the intestinal lymph nodes, in the spleen and in the lung. The DNA-concentration of the testes of group 2 (7.17 +/- 2.92) was higher than that of the group 4 (4.46 +/- 1.70 mg/g w. w.), also that of the renal fat tissue (0.39 +/- 0.18 resp. 0.20 +/- 0.09). The highest protein: DNA-relation in group 4 was found in the fat tissue (203.5: 1) and the lowest in the spleen (15.3: 1). A high RNA-concentration was analysed in the lymph nodes, in the spleen and in the lung. The RNA-concentration in the fat tissue of group 2 (0.34 +/- 0.13) was higher that that in group 4 (0.15 +/- 0.08 mg/g w. w.).

[The effect of a restriction of nutrient intake on the composition of the blood and on the development and composition of different tissues of sheep during growth. 1. The level of the hematocrit and hemoglobin in the blood, that of protein, alpha amino-N, remaining N, glucose, FFA, insulin, beta-hydroxybutyrate, Na, K, Ca, Mg, Pa, Fe, iron-binding capacity, Cu and Zn and the activities of ALT, AST, LDH, GGT and AP in plasma at slaughter]. / Untersuchungen über den Einfluss einer Beschränkung der Nährstoffaufnahme auf die Zusammensetzung des Blutes sowie auf die Entwicklung und Zusammensetzung verschiedener Gewebe von Schafen während des Wachstums. 1. Mitteilung: Der Gehalt an Hämatokrit und Hb im Blut, an Protein, alpha-Amino-N, Rest-N, Glucose, FFS, Insulin, beta-Hydroxybutyrat, Na, K, Ca, Mg, Pa, Fe, Fe-Bindungskapazität, Cu und Zn sowie an Aktivität der ALAT, ASAT, LDH, gamma-GT und der AP im Plasma bei der Schlachtung.

In lambs after weaning with a body weight of 16.3 +/- 1.5 kg (group 1) and in sheep after a period of fattening with an increase of the body weight of 72.2 +/- 13.6 (group 2), of 184.4 +/- 12.2 (group 3) respectively of 302.1 +/- 24.3 g per day (group 4) the concentration of the components mentioned in the title was analysed in blood and plasma. The hematocrit, the concentration of Hb in the blood and that of total protein, of nonprotein-N, of Na, of Ca, of the iron-binding capacity and of Zn as well as the activity of the 5 enzymes in the plasma of the sheep of group 4 were higher than that of the group 2. Stress by the transport and stunning increased the concentration of free fatty acids in the plasma. The significance of the results for the clinical-chemical diagnosis is discussed.