| Summary: | The article presents the results of research on the aminoacid composition of newborns, functionally active calves and calves born with signs of hypoxia. It was established that the amount of free amino acids in the blood from the vessels of the umbilical cord of functionally active calves was quite high and amounted to 262,03 ± 3,24 nmol/0,1 ml. The pool of essential amino acids in the blood of calves born functionally active was 47,68±0,96 nmol/0,1 ml. The content of monoaminocarboxylic, amino acid-alanine in the blood of functionally active calves was higher than in experimental group calves at 2,32, 1,70 (p<0,01) and 1,28 times (p<0,05). The content of amino acids containing sulfur (cystine and methionine) was significantly higher in the blood of functionally active calves (in 2,35, 1,91 and 1,63 times, p <0,001) compared with calves in experimental groups. Similarly, differences in the content of methionine in the blood of calves in control and experimental groups were also observed. The given amino acid in the blood of calves in experimental groups was 2,95, 2,25 and 1,88 times less (p<0,001) than in the control group calves.
The important amino acid in the blood of calves is Histidine. It is believed that the lack of this amino acid inhibits the synthesis of hemoglobin and leads to disorders of muscle activity. The results of our studies indicate that in the blood of functionally active newborn calves the content of this acid was 4,21±0,37 nmol/0,1 ml. The content of glutamic acid and glutamine, on average, in the blood of hypoxic calves was 14,38 ± 0,72 nmol/0,1 ml, which is 1,66 times (p<0,01) below the figure of functionally active calves. Another group of essential amino acids (leucine and isoleucine), which is a compulsory component of many proteins, was represented by higher rates in the blood of functionally active calves. The sum of these amino acids in the blood of animals in this group was 10,29±0,50 nmol/0,1 ml, which is higher than that of calves of experimental groups in 2,53, 1,95 (p<0,001) and 1,63 times (p<0,01).
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