Abstract
The nutritional value of pastures can vary depending on the type of available vegetation, its quality and environmental conditions. The analysis of the samples was carried out in the laboratory of the Agricultural Institute - Stara Zagora, using Infrared technology for analysis of feed and components - NIRS DS 2500 - monochromator, with a scanning range of 850 - 2500 nanometers. The following quality indicators were determined: Dry matter, %, Protein, %, Starch, %, Ash, %, ADF, % and NDF, % to available moisture. In the spring season, the dry matter is 23.76%, in the summer it is 29.89% and in the winter it is 68.04%. The protein varies from 6.75% in spring to 3.64% in autumn. In the summer we find 4.77%. The content of acid detergent fiber varies from 8.25 to 35.03%, with the highest value recorded in autumn - 35.03%. The results obtained in our study for neutral detergent fiber vary from 14.2% to 43.3% depending on the seasons. In summary, pastures offer a rich source of nutrients for ruminants, including proteins, carbohydrates, vitamins, minerals and fiber. Proper pasture management, such as appropriate planning, crop rotation and fertilization, can help optimize the nutritional composition of pastures and provide optimal rations for large ruminants. The results obtained were processed variationally - statistically using the software product SYSTAT 12 © Copyright 2007, SYSTAT Software, Inc. All Rights Reserved and STATSOFT Statistics for Windows 10. The aim of this study is to establish seasonal changes in the nutritional value of pasture resources for large ruminants. Meadow and pasture production, which is used for direct consumption by animals or for obtaining hay for manure feeding, is indirectly related to this problem.
Published Version
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