Seasonal changes in the nutritive value of a grazing resource for large ruminants
Vladimir Karabashev
, Teodora Angelova
, Jivko Krastanov
, Daniela Koleva
Резюме: 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.
Ключови думи: Crude nutrient content; forage; natural pastures
Цитиране: Karabashev, V., Angelova, T., Krastanov, J. & Koleva, D. (2024). Seasonal changes in the nutritive value of a grazing resource for large ruminants. Bulgarian Journal of Animal Husbandry, 61(6), 44-50 (Bg).
| Литература: (click to open/close) | Arslan, C. & Ve Tufan, T. (2011). Determination of Herbage Yield, Nutrient Composition and Optimum Harvesting Date of Pastures in Kars District Atatürk Üniversitesi. Vet. Bil. Derg., 6(2), 131-138.
Avci, A., Kaplan, O., Yertürk, M. & Aslan, M. (2006). Nutrient and Botanical Composition of Pastures in Ceylanpınar. Agricultural Farm. YY Uni. J. of Veterinary Faculties, 17, 9- 13.
Čermák, B., Lád, F., Klimeš, F., Jílek, R. & Kobesa, M. (2006). Dynamic of nutrients quality characteristic of pasture in different altitude in South Bohemian region Slovak. J. Anim. Sci., 39,(1-2), 99 – 102.
Dierenfeld, E. S., Lukuyu, B. & Nyagaka, D. (2014) Nutrient Composition of Pastures in Kayunga District, Uganda: A Preliminary Investigation with Implications for Seasonal Supplementation in Grazing Ruminants. American Journal of Plant Sciences, 5, 985-989. http://dx.doi.org/10.4236/ajps.2014.57111.
Kadlec, J. Čermák, B., Lád, F. & Klimeš, F. (2004). Dynamic of quality characteristic of fodder grasses in relatinship to their digestibility. In: Collection of Scientific Paper, Faculty of Agriculture in České Budějovice. Series for Animal Sciences, XXI., Č.Budějovice, (1 Special Issue), 125 – 127.
Koç, A., Gökkuġ, A. & Altin, M. (2003). Comparison of methods commonly used in the world to determine pasture status and a recommendation for Türkiye. Türkiye 5. Tarla Bitkileri Kongresi, 13-17 Ekim, Diyarbakır, 36-42.
Lafçi, N., Bozkurt Kiraz, A. (2021). Determınatıon of Crude Nutrıent Content of Natural Pastures of Sanlıurfa Tek Tek Mountaıns, in Turkey.Turkey International Journal of Agriculture and Biological Sciences. ISSN (2522-6584).
Linn, J. G. & Martin, N. P. (1991). Forage quality analysis and interpretation. The Veterinary Clinics of North America. Food Animal Practice, 7(2), 509-523.
Machado, C. F., Morris, S. T., Hodgson, J. & Fathalla, M. (2005) Seasonal changes of herbage quality within a New Zealand beef cattle finishing pasture. New Zealand Journal of Agricultural Research, 48(2), 265-270. DOI: 10.1080/00288233.2005.9513655.
Meshinev, T., Apostolova, I., Georgiev, V., Dimitrov, V., Petrova, A. & Veen, P. (2005). Graslands of Bulgaria. Final Report on the National Graslands Inventary Ptojekt, 103.
Mthi, S., Rust, J. M., Washaya, S., Washaya, D. D., Morgenthal, T. L. & Sondzaba, B. (2021). Seasonal variation in nutritive value of four browse species used by smallholder farmers for livestock in Eastern Cape Province, South Africa. Appl. Anim. Husb. Rural Develop., 14, 40-49.
Patton, J., Dineen, M., Keady, T. W. J., McGee, M. & Waters, S. (2022). Developments in nutrition for pasture-based cattle and sheep systems in Ireland. Irish Journal of Agricultural and Food Research, 61(1), 12-37. DOI: 10.15212/ijafr-2020-0148 IJAFR.
Pavlov, D., (2007). Increasing the usability of natural resources and natural grass associations for the development of rural areas. Journal of Mountain Agriculture on the Balkans, 10(1), 37-64.
Pozdíšek, J., Kohoutek, A. & Horáková, E. (2003). Digestibility and nutrition value of grass silages Czech J. Anim. Sci., 48,(9), 359–364.
Sttojanović B., Grubić G., Đorđević N., Božičković A., Davidović V. & Ivetić A. (2016). Pasture in animal nutrition. roceedings of the International Symposium on Animal Science (ISAS), 203-210. 24-25th ,Belgrade-Zemun, Serbia.
Waghorn, G. & Clark, D. (2004). Feeding value of pastures for ruminants. New Zealand Veterinary Journal, 52(6), 320–331. https://doi.org/10.1080/00480169.2004.36448.
Undersander, D. (2003). The new Forage Quality Index – concepts and use. World’s ForageSuperbowl Contest. http://www.dfrc.ars.usda.gov/WDExpoPdfs/newRelativeFQindex.pdf. |
|
| Дата на публикуване: 2024-12-16
Свали пълен текст 
