EVALUATION OF THE QUALITY OF TWO DIFFERENT ARTIFICIAL PASTURES AND THEIR EFFECTS ON THE PERFORMANCE OF GRAZING BEEF ANIMALS
Abstract
This research was conducted to determine the feeding quality of different artificial pastures and their effects on animal performance from the years 2010 to 2012. For this purpose, two different artificial pastures were established, each one covered 1.5 ha area during the first year of the research. The mixtures of the pastures used were as follows: Pasture 1 (P1): Medicago sativa L. (20%) + Bromus inermis L. (40%) + Agropyron cristatum L. (30%) + Poteriumsanguisorba (10%); Pasture 2 (P2): Medicago sativa L. (15%) + Onobrychis sativa Lam. (15%) + Agropyron cristatum L. (35%) + Bromus inermis L. (35%). The grazing was conducted in the second and the third years of the research. Twenty Holstein male calves with 6 months old were assigned to the experimental areas randomly, each pasture containing 10 animals. Forage samples were collected from grazing and non-grazing areas once every 15 days during the grazing seasons. Concurrently with forage sampling, liveweight gains of animals were also obtained. The dry matter (DM) yield, crude protein (CP), acid detergent fibre (ADF), neutral detergent fibre (NDF) contents, in vitro dry matter digestibility (IVDMD) were determined on the forage samples collected from grazing and non-grazing areas. The results showed that as grazing season advanced forage quality was declined in both pastures. The CP content and IVDMD were decreased with advancing growth stages in grazing and non-grazing areas of two pastures. The ADF and NDF contents were increased with advancing growth stages. There were no significant differences in the animal performances grazed on both pastures in terms of final weights, total weight gains and daily live weight gains.
Keywords
References
- LITERATURE CITED
- Akgul M, L Basayigit.2005. Detailed soil survey and mapping of Suleyman Demirel University farming land. In: Bulletin (Fen Bilimleri Enstitusu Dergisi) 9 (3), Suleyman Demirel Universitesi, Isparta, Turkey, 54–63, available from URL: http://edergi.sdu.edu.tr/index.php/fbed/article/viewFile/822/1119
- Aksoy A, A. Yilmaz.2003. Metabolizable energy values and dry matter and organic matter digestibilities of some alfalfa varieties. Journal of Agricultural Sciences, 9 (4): 440–444.
- Albayrak, S., M. Turk and O. Yuksel. 2009. Effects of phosphorus fertilization and harvesting stages on forage yield and quality of woolypod vetch. Turkish Journal of Field Crops, 14(1):30-40.
- Altin M, A. Gokkus, AKoc. 2005. Range and Meadow Improvement and Development. The Ministry of Agriculture and Rural Affairs, Republic of Turkey, Ankara, 1–468.
- Arzani H, J. Torkan, M. Jafari, A. Nikkhah. 2001. Investigation on effects of phenological stages and environmental factors (soil and climate) on forage quality of some important range species. Iran J AgricSci 32:385 –397.
- Arzani H, M. Zohdi, E. Fish, G.H. ZahediAmiri, A. Nikkhah, D. Wester.2004. Phenological effects on forage quality of five grass species. J Range Manage 57:624 –629.
- Berdahl J.D., J.F.Karn, J.R. Hendrickson. 2001. Dry matter yields of cool-season grass monocultures and grass–alfalfa binary mixtures. Agron J 93: 463–467.
Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Publication Date
May 18, 2015
Submission Date
May 18, 2015
Acceptance Date
-
Published in Issue
Year 2015 Volume: 20 Number: 1