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Revista mexicana de ciencias agrícolas
versión impresa ISSN 2007-0934
Resumen
GONZALEZ MUNOZ, Alicia et al. Yield and protein content in forage and silage of Insurgente grass and Urochloa hybrids. Rev. Mex. Cienc. Agríc [online]. 2020, vol.11, n.spe24, pp.177-189. Epub 07-Mayo-2021. ISSN 2007-0934. https://doi.org/10.29312/remexca.v0i24.2368.
Livestock in the state of Tamaulipas is affected due to a marked seasonality in forage production, which causes shortages during the dry season, therefore, forage conservation is necessary to face this problem. Therefore, the objective of this study was to evaluate, in stormy conditions and during the season of greatest rainfall, the yield (t ha-1) of total dry matter (TDM) and leaf (DML); as well as, the crude protein content (CP,%) in forage and silage of Insurgente, Mulato II, Cobra and Cayman grass. The data were analyzed in a completely randomized design, with four repetitions and comparison of means using Tukey (p= 0.05). The Cayman hybrid presented higher accumulation (p≤0.05) of TDM and DML (8.34 and 8.27 t ha-1, respectively) compared to Insurgente (6.38 and 6.25 t ha-1, respectively). The highest (p≤ 0.05) content of CP in forage was presented by Cayman and Cobra, with 16.1% on average, while Mulato II and Insurgente were those with the lowest value for this variable (14.6%, on average). The CP in the silage was similar (p˃ 0.05) for the cultivars evaluated, with an average of 14.4%. The Cayman and Cobra hybrids showed higher forage yield and crude protein content, compared to Insurgente. The crude protein content present in the silage was greater than 14%, which indicates that these cultivars can be preserved using this technique.
Palabras llave : Mulato II; Urochloa hybrid CIAT BR02/1752; Urochloa hybrid CIAT BR02/1794.