Effect of new biologically active feed ingredient - potassium humate on productivity and milk quality of dairy cows
Laen...
Kuupäev
2023
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
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.
Kirjeldus
Received: January 31st, 2023 ; Accepted: June 19th, 2023 ; Published: June 27th, 2023 ; Correspondence: aiga.trupa@lbtu.lv
Märksõnad
dairy cows, potassium humate, productivity, milk quality, articles