| Popis: |
The data obtained as a result of the use of a mineral lick briquette Amirasol R-Z in the diets of dairy cows are analyzed in the article. Authors studied the influence of the mineral lick briquette Amirasol R-Z on the biochemical parameters and milk productivity of dairy cows. The experiments were carried out on dairy cows of the red steppe breed in the conditions of the plain zone of the Republic of Dagestan. Two groups of dairy cows were formed (10 heads in each). According to the scheme of the experiment, the control group received a basic diet, the experimental group received the basic diet and the mineral lick briquette Amirasol R-Z. Each cow of the experimental group was given individually one lick briquette in a dose of 4 kg during 90 days. Researches and data processing were carried out according to generally accepted methods. Blood was taken from the experimental animals from the jugular vein for laboratory studies at the end of the experiment. The milk productivity and fat content of milk were taken into account by carrying out monthly control milk yields. At the same time, the positive effect of a lick briquette on the biochemical parameters of blood has been proven: reserve alkalinity, glucose, macro- and microelements, the activity of the copper-containing enzyme ceruloplasmin and milk productivity. A significant increase in the blood of glucose concentration by 12.93% in the cows of the experimental group, the level of reserve alkalinity by 17.66%, the concentration of macroelements and microelements, milk productivity by 5.7%, milk fat by 2.77% compared with the control group. The use of the mineral lick briquette Amirasol R-Z in the diets of dairy cows helps to prevent macro- and microelementoses, increase milk productivity, milk fat content, nonspecific immunity and obtain of healthy calves. |
