Longer cutting intervals on the characteristics of Guinea grass: morphogenetic, productive, and nutritional traits
Abstract
The aim of this study was to examine the effect of longer cutting intervals on morphogenetic and structural traits, herbage production, nutritional value, and in vitro digestibility of Guinea grass cv. Mombaça (Mombaça grass). Four cutting intervals (49, 63, 77, and 91 days) were evaluated in two crop years (2015-2016 and 2016-2017) during the rainy season, in two replicates. Cutting intervals influenced structural and morphogenetic traits, except for number of live leaves (4.35 leaves tiller-1) and final leaf length (72.94 cm) in the 2015-2016 crop year. As the cutting intervals increased, dry matter yield and stem percentage increased, whereas leaf percentage and leaf-to-stem ratio declined. Regardless of the evaluated crop year, the dry matter, acid detergent fiber, and lignin contents increased linearly; however, the neutral detergent fiber content was unaffected. Cutting intervals affected the crude protein content and in vitro digestibility. Considering leaf appearance rate, stem appearance rate, and leaf-to-stem ratio, the recommended harvest age for Mombaça grass for optimum yield and nutritional value is 77 days.
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References
Association of Official Analytical Chemists [AOAC]. (2012). Official methods of analysis (19th ed.). Gaithersburg, MD, USA: AOAC.
Costa, N. L., Moraes, A., Carvalho, P. C. F., Monteiro, A. L. G., Motta, A. C. V., Silva, A. L. P., & Oliveira, R. A. (2014). Morphogenesis of Trachypogon plumosus under liming, fertilization and regrowth ages. Archivos de Zootecnia, 63(241), 109-120.
Costa, C. S., Rodrigues, R. C., Santos, F. N. S., Araújo, R. A., Sousa, G. O. C., Lima, J. R. L., ... Rodrigues, M. M. (2017). Structural characteristics and chemical composition of andropogon grass pasture managed under different defoliation intensities and rest periods. Revista Brasileira de Saúde e Produção Animal, 18(4), 492-504. DOI: https://doi.org/10.1590/S1519-99402017000400001
Difante, G. S., Nascimento Jr., D., Da Silva, S. C., Euclides, V. P. B., Montagner, D. B., Silveira, M. C. T., & Pena, K. S. (2011). Morphogenetic and structural characteristics of marandu palisadegrass subjected to combinations of cutting heights and cutting intervals. Revista Brasileira de Zootecnia 40(5), 955-963. DOI: https://doi.org/10.1590/S1516-35982011000500003
Gomes, R. A., Lempp, B., Jank, L., Carpejani, G. C., & Morais, M. G. (2011). Características anatômicas e morfofisiológicas de lâminas foliares de genótipos de Panicum maximum. Pesquisa Agropecuária Brasileira, 46(2), 205-211. DOI: https://doi.org/10.1590/S0100-204X2011000200013
Holden, L. A. (1999). Comparison of methods of in vitro matter digestibility for ten feeds. Journal of Dairy Science, 82(8), 1791-1794. DOI: https://doi.org/10.3168/jds.S0022-0302(99)75409-3
Hodgson, J. (1990). Grazing management: science into practice. New York, NY: John Wiley and Sons.
Hopkins, W. G. (1995). Introduction to Plant Physiology. New York, NY: Jonh Wiley and Sons.
Lemaire, G., & Chapman, D. (1996). Tissue flows in Grazed Plant Communities. In J. Hodgson, A. W. Illius (Eds.). The Ecology and Management of Grazing Systems (p. 3-29). Wallingford, UK: CABI Publishing.
Magalhães, J. A., Lopes, E. A., Rodrigues, B. H. N., Costa, N. L., Barros, N. N., & Mattei, D. A. (2006). Influence of the nitrogen fertilization and of the cut age on the forage yield of the elephant grass. Revista Ciência Agronômica, 37, 91-96.
Neel, J. P. S., Felton, E. E. D., Singh, S., Sexstone, A. J., & Belesky, D. P. (2016). Open pasture, silvopasture and sward herbage maturity effects on nutritive value and fermentation characteristics of cool-season pasture. Grass and Forage Science, 71(2), 259-269. DOI: https://doi.org/10.1111/gfs.12172
Oliveira, E. R., Monção, F. P., Gabriel, A. M. A., Goes, R. H. T. B., Lemp, B., & Moura, L. V. (2014). Ruminal degradability of neutral detergent fiber of Cynodon spp. grasses at four regrowth ages. Acta Scientiarum. Animal Sciences, 36(2), 201-208. DOI: https://doi.org/10.4025/ actascianimsci.v36i2.22469
Paciullo, D. S. C., Fernandes, P. B., Gomide, C. A. M., Castro, C. R. T., Souza Sobrinho, F. S., & Carvalho, C. A. B. (2011). The growth dynamics in Brachiaria species according to nitrogen dose and shade. Revista Brasileira de Zootecnia, 40(2), 270-276. DOI: https://doi.org/10.1590/S1516-35982011000200006
Ribeiro Jr., G. O., Teixeira, A. M., Velasco, F. O., Faria Júnior, W. G., Pereira, L. G. R., Chaves, A. V., … McAllister, T. A. (2014). Production, Nutritional Quality and In vitro Methane Production from Andropogon gayanus Grass Harvested at Different Maturities and Preserved as Hay or Silage. Asian-Australas Journal Animal Sciences, 27(3), 330-341. DOI: https://doi.org/10.5713/ajas.2013.13161
Rodrigues, A. L. P., Sampaio, I. B. M., Carneiro, J. C., Tomich, T. R., & Martins, R. G. R. (2004). In situ dry matter degradation of tropical forages harvested at different ages. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 56(5), 658-664. DOI: https://doi.org/10.1590/S0102-09352004000500014
Sá, J. F., Pedreira, M. S., Silva, F. F., Bonomo, P., Figueiredo, M. P., Menezes, D. R., & Almeida, T. B. (2010). Carbohydrates and proteins fractions of tropical grasses cut at three ages. Arquivo Brasileiro Medicina Veterinária e Zootecnia, 62(3), 667-676. DOI: https://doi.org/10.1590/S0102-09352010000300023
Silva, D. C., Alves, A. A., Lacerda, M. S. B., Moreira Filho, M. A., Oliveira, M. E., & Lafayette, E. A. (2014). Nutritional value of Andropogon grass in four regrowth ages during rain session. Revista Brasileira de Saúde e Produção Animal, 15(3), 626-636. DOI: https://doi.org/10.1590/S1519-99402014000300004
Tilley, J. M. A., & Terry, R. A. (1963). A two-stage technique for the in vitro digestion of forage crops. Journal of British Grassland Society, 18(2), 104-111. DOI: https://doi.org/10.1111/j.1365-2494.1963.tb00335.x
Van Soest, P. J. (1967). Development of a comprehensive system of feed analysis and its application to forage. Journal of Dairy Science, 26, 119-128. DOI: https://doi.org/10.2527/jas1967.261119x
Van Soest, P. J., Robertson J. B., & Lewis B. A. (1991). Methods for dietary fiber, neutral fiber, and nonstarch polyssacarides in relation to animal nutrition. Journal of Dairy Science, 74(10), 3583-3597. DOI: https://doi.org/10.3168/jds.S0022-0302(91)78551-2
Van Soest, P. J. (1994). Nutritional ecology of the ruminant (2nd ed.). Corvallis, OR: Cornell University Press. DOI: https://doi.org/10.7591/97815017323
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