АКТИВНІСТЬ АМІНОТРАНСФЕРАЗ У СИРОВАТЦІ КРОВІ ТЕЛЯТ ЗА ДІЇ ПІРИДОКСИНУ ГІДРОХЛОРИДУ
Scientific Messenger of LNU of Veterinary Medicine and Biotechnology
The influence of pyridoxine hydrochloride (vitamin B6) activity in serum aminotransferases in dairy calves growing period (1 to 90 days). Calves control group received basic diet, but research from the first days of life to the basic diet added pyridoxine hydrochloride doses: I group – 1.0; II – 2.0; III – 3.0; IV – 4.0 V and group – 5.0 mg / kg body weight. Blood for the study was before the morning feeding at 1, 5, 21, 60 and 90 days after birth. Research aminotransferase activity was
... ctivity was determined by the content of serum aspartate aminotransferase (AST), alanine aminotransferase (ALT) and the ratio between them using factor where Ritisa.It was established that the addition of colostrum to milk and pyridoxine hydrochloride leads to increased aminotransferase activity. The low activity of AST and ALT in blood serum of calves of all groups was on the first day of life. Effects of pyridoxine hydrochloride on aminotransferase activity was shown during the research period. Adding to the colostrum vitamin B6 increases the activity of AST by 10 percent or more doses of only 3.0, 4.0 and 5.0 mg/kg body weight. Probably higher AST activity detected in animals II, III, IV and V groups at 21 and 60 days. On the 90th day of the experiment AST activity in serum of calves research groups stabilized, which may indicate the ability of vitamin B6 stimulate the growth and development of microorganisms scar. Adding to the colostrum and milk pyridoxine hydrochloride led to growth within the physiological norm ALT activity. Significant difference between ALT control and experimental groups established in calves III, IV and V groups 21, 60 and 90 day experiment, calves and the second group on day 90 of the experiment. Stabilization of enzyme activity investigated is set to 21 days in calves group IV, 60 – the third group and 90 days in calves second group. The ratio of AST to ALT (coefficient de Ritis) do not go beyond the physiological norm. For correction of vitamin–supply calves 1–21 days old is the optimal dose of daily supplement intake of calves 4 mg / kg body weight of vitamin B6 for calves with 21–60–day age – 3 mg / kg and 60 calves 90–day age – 2 mg / kg body weight.