Effect of new biologically active feed ingredient - potassium humate on productivity and milk quality of dairy cows
2023
In animal feeding, the use of effective bioactive feed additives of natural origin, which have a stimulatory effect on the digestive and metabolic processes in an animal organism, while maximally maintaining the conditions for a healthy rumen environment, in combination with an environmentally friendly and economically beneficial agricultural production process, is being studied. Humates can play an important role in addressing this problem. Therefore, a study with Holstein-Friesian Black-and-White cows was carried out on the farm ‘Dukati’, Vitinu Parish, Auce Municipality, to understand the effect of potassium humate on the productivity and milk quality of dairy cows. Animals were selected for the research and assigned by the analogy principle to two treatment groups: trial and control; each group consisted of 15 dairy cows. The dairy cows were kept in free stall barns. The animals were provided with all welfare requirements according to the guidelines. During the trial, a decrease in productivity in both groups of cows was observed, but this decrease was slower in the trial group - by 6 kg ECM, compared to the beginning of the trial. During the trial, the milk composition, according to its fat and lactose content, was similar for cows of both groups. The protein content in the milk of the cows of both groups differed (P < 0.05). In the trial cow group, the protein content in milk increased by 0.15%, but the urea content in the milk decreased by 0.96 mg dL-1 , and somatic cell count by 180 thsd mL-1 compared to the beginning of the trial.
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