Влияния дополнительной подкормки на процессы пищеварения и продуктивности сукозных коз в условиях пастбищного содержания

English

The effect of additional top dressing on the digestive processes and productivity of suckling goats in pasture conditions

Abstract. The article presents the materials obtained in the study of the effect of additional top dressing on the processes of digestion and metabolism in local aboriginal and Zaanen goat breeds, with year-round pasture content in the conditions of Uzbekistan. We have established that goats, regardless of the direction of productivity, are half-starved for a quarter of the year, that is, especially in the second half of suckling and at the beginning of lactation. During these periods, the goats of both compared groups in the winter season daily received from 0.70 to 0.78 feed units and from 20 to 28 g of digestible protein, and at the beginning of the lactation period, these indicators were 86% of the norm or did not receive from 13 to 17% of nutrients. In this regard, we conducted experiments to study the effect of the household diet consisting of coarse feed 130 g of mixed feed and 50-50% barley and straw cutting and pasture feed and they were fed to the control (local) and 1st experimental group (Zaanenskaya) animals, and the 2nd experimental group (Zaanenskaya) goats received a diet almost balanced in all nutrients. According to the data obtained, the composition and nutritional value of the feed consumed by the goats of the 2 - experimental group practically meets their needs completely, and in the animals of the control and 1 – experimental groups-only 82-85% of the nutritional needs. The highest concentration of total nitrogen was in the rumen of the 2-experimental group (123.33 mg %), while in the local goats of the control and foreign 1-experimental groups, its concentration was on average (110.0 mg %) less. In the control and 1st experimental group of animals with a greater consumption of pasture feed, the digestibility of the main nutrients was lower, compared with the animals of the 2nd experimental group, in which the digestibility of the main nutrients was higher than in the animals that received household diets.

Keywords: feedings; local; Zaanen; goats; productivity; household inormated diets; primers; suckiness; nutrients; digestibility; scar fluid; total; protein and non-protein nitrogen