Influence of small peptides on milk productivity and biochemical indicators of blood serum of dairy cows
Volume 16 • Issue 2
Maksimov Nikita I., Lashin Anton P.
DOI: https://doi.org/10.22450/19996837_2022_2_91
Published on: 31.05.2022
The purpose of the experiment was to study the effect of small peptides on milk productivity and biochemical parameters of blood serum of dairy cows. To conduct the experiment using the analogue pair method, we selected 80 heads of red-and-white cattle, which were divided into 4 groups of 20 heads each. The experimental animals had the same milk production and lactation days. The control group received the standard household diet; the first experimental group received 5 g small peptides/head per day; second experimental group – 10 g small peptides/head per day; the third experimental group – 15 g of small peptides/head per day, against the background of the main diet adopted on the farm. The small peptides were administered orally during the trial period, which was 60 days. The results of the studies showed that the addition of small peptides to experimental animals increased milk production compared to the control. However, in animals of the control group, milk production was lower by 3.21 kg/day compared to the experimental ones. The content of immunoglobulin A and immunoglobulin M in blood serum in the experimental groups was significantly higher than in the control group. Based on the study, it can be stated that milk productivity and biochemical parameters of blood serum affect the qualitative and quantitative indicators, when small peptides are added to the main diet at a dose of 10 g/head per day.
Maksimov N. I., Lashin A. P. Vliyanie malykh peptidov na molochnuyu produktivnost' i biokhimicheskie pokazateli syvorotki krovi molochnykh korov [Influence of small peptides on milk productivity and biochemical indicators of blood serum of dairy cows]. Dal’nevostochnyj agrarnyj vestnik. – Far Eastern Agrarian Bulletin. 2022; 2 (62): 91–97. (in Russ.). doi: 10.22450/19996837_2022_2_91.
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