Main Article Content
Chemical composition, digestibility, methane production, microbial protein yield, partitioning factor, vetches
The aim of the current experiment was to determine effect of species on chemical composition, in vitro gas production, methane production, metabolizable energy (ME), organic matter digestibility (OMD), true substrate digestibility (TSD), partitioning factor (PF), microbial protein yield (MPY) and efficiency of microbial protein yield (EMP) of vetches grown in native pasture in Turkey. The species had a significant effect on the chemical composition, in vitro gas production, methane production, ME, OMD, TSD, PF, MPY and EMPY of vetch hays. Crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), gas production, methane production, ME, OMD, PF, MPY, EMPY and TSD ranged from 17.2 to 26.6 %, 41.3 to 61.5%, 23.3 to 39.2 %, 89.5 to 125.0 ml, 14.6 to 19.4 ml, 7.8 to 10.0 MJ (kg /DM), 60.2 to 74.1 %, 3.2 to 4.0, 107.1 to 173.5 mg, 31.9 to 44.2 % and 60.4 to 82.1 % respectively. There is considerable amount of variation among vetch hay samples in terms of chemical compositions, gas production, CH4 production, MPY, EMPY and the other estimated parameters such as ME and OMD. The vetch hays studied in the current experiment have a potential to meet the CP, ME and fiber requirement of ruminant animals for growth and lactation. Based on the chemical composition and fermentation parameters, Vicia villosa can be recommended for hay production since it has a high CP, MPY and EMPY. However, before large implication the biomass yield of vetch species should be tested.
2. Seyoum B. Evaluation of nutritive values of herbaceous legumes, browse species and oil seed cakes using chemical analysis. In vitro digestibility and nylon bag technique. MSc Thesis. Alemaya University of Agriculture, Ethiopia. 1994.
3. Karabulut A, Canbolat O, Kalkan H, Gurbuzol F, Sucu E, Filya I. Comparison of in vitro gas production, metabolisable energy, organic matter digestibility and microbial protein production of some legume hays. Asian-Australian Journal of Animal Science 2007; 20(4):517-522.
4. Kamalak A, Canbolat O. Determination of nutritive value of wild narrow-leaved clover (Trifolium angustifolium) hay harvested at three maturity stages using chemical composition and in vitro gas production. Tropical Grasslands 2010; 44:128–133.
5. Navarro-Villa A, O’Brien M, Lopez S, Boland TMP, O’Kiely P. In vitro rumen methane output of red clover and perennial ryegrass assayed using the gas production technique (GPT). Animal Feed Science Technology 2011; 168:152-164.
6. Banik BK, Durmic Z, Erskine W, Ghamkar K, Revel C. In vitro ruminal fermentation characteristics and methane production differ in selected key pasture species in Australia. Crop and Pasture Science 2013; 64:935-942.
7. Uslu OS, Kurt O, Kaya E, Kamalak A. Effect of species on the chemical composition, metabolisable energy, organic matter digestibility and methane production of some legume plants grown in Turkey. Journal of Applied Animal Research 2018; 46(1):1158-1161.
8. AOAC. Official method of analysis. 15th ed., Association of Official Analytical Chemists, Washington, DC, USA. 1990. pp.66-88.
9. Van Soest PV, Robertson JB, Lewis BA. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science 1991; 74(10): 3583- 3597.
10. Menke KH, Raab L, Salewski A, Steingass H, Fritz D, Schneider W. The estimation of the digestibility and metabolizable energy content of ruminant feedingstuffs from the gas production when they are incubated with rumen liquor in vitro. Journal of Agricultural Science (Cambridge) 1979; 93:217-222.
11. Goel G, Makkar HPS, Becker K. Effect of Sesbania sesban and Carduus pycnocephalus leaves and Fenugreek (Trigonella foenum-graecum L) seeds and their extract on partitioning of nutrients from roughage and concentrate-based feeds to methane. Animal Feed Science Technology 2008; 147 (1-3): 72-89.
12. Menke KH, Steingass H. Estimation of the energetic feed value obtained from chemical analysis and in vitro gas production using rumen fluid. Animal Research and Development 1988; 28:7-55.
13. Blümmel M, Makkar HPS, Becker K. In vitro gas production: a technique revisited. Journal of Animal Physiology and Animal Nutrition 1997; 77:24-34.
14. Groff E, Wu Z. Milk production and nitrogen excretion of dairy cows fed different amounts of protein and varying proportions of alfalfa and corn silage. Journal of Dairy Science 2005; 88(10):3619-3632.
15. Dewhurst, RJ, Delaby L, Moloney A, Boland T, Lewis E. Nutritive value of forage legumes used for grazing and silage. Irish Journal of Agricultural and Food Research 2009;.48(2):167-188.
16. Gezahagn K, Getnet A, Alemayehu M Fekede F. Forage nutritive values of vetch species and their accessions grown under nitosol and vertisol conditions in the central highlands of Ethiopia. Livestock Research for Rural Development 2014; 26:1-11.
17. Basbag M, Cacan, E, Aydin A, Sayar MS. The determination of quality characters of Anchusa strigosa Labill field in natural vegetations of southeastern Anatolia region. 1st National Agriculture Congress and Exposition on Behalf of Ali Numan Kıraç, Eskişehir 2011; 143-151.
18. Lopez S, Makkar HPS, Soliva CR. Screening plants and plant products for methane inhibitors. In, Vercoe PE, Makkar HPS, Schlink A (Eds): In vitro screening of plant resources for extra-nutritional attributes in ruminants: Nuclear and Related Methodologies 2010; pp.191-231, London, New York.
19. Gürsoy E, Macit M. Determination of in vitro gas production parameters of some legume forages grown naturally in the pastures of Erzurum province. Anadolu Journal of Agricultural Science 2015; 30:292-299.
20. Canbolat O, Karaman S. Comparison of in vitro gas production, organic matter digestibility, relative feed value and metabolisable energy contents of some legume forages. Journal of Agricultural Sciences 2009; 15(2):188-195.
21. Davies Z, Mason SD, Brooks AE, Griffith GW, Merry RJ, Theodorou MK. An automated system for measuring gas production from forages inoculated with rumen fluid and its use in determining the effect of enzymes on grass silage. Animal Feed Science and Technology 2000; 83:205–221.