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Efecto de la adición de urea sobre la composición química y digestibilidad in vitro de la materia seca de heno de Brachiaria humidicola (Rendle) Schweick cosechado a diferentes edades
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rodríguez-Romero, Norelys Araujo-Febres, Omar E. Gonzalez, Baldomero |
| Copyright Year | 2004 |
| Abstract | With the purpose of evaluating the effect of the urea addition of the hay of Brachiaria humidicola at differents cutting ages on dry matter (MS), ash and nitrogen content (N) and digestibility in vitro of the dry matter (DIVMS) a research was carried out under tropical dry forest conditions at Perija region in Venezuela. The desing used was a completely randomized with a split plot arragement and three repetitions. In the main plots were located the five strip of the cutting ages (30, 44, 58, 72 and 86 days) for the hay production, using one hectare with Brachiaria humidicola with an effective area of 102 m 2 for each cutting ages strip. The chopped hay was placed in plastic bags and it was added 0, 3 and 6% of urea diluted with 40% of water in relation to the dry weight of the hay. It was stored for 28 days at ambient temperature. Samples from hay were taken for MS content, ash and N and DIVMS. The results show a effect of the urea adddition (P<0.0001) on the varia- bles, with increasing of N from 1.2 to 2.9% and DIVMS from 65.1 to 70.8%; the MS and ash content decresing from 93.8 to 69.6% and from 6.2 to 5.7%, respectively. Showed an effect of the cutting age (P<0.005) on the variables, with decreasing in the ash content (from 7.4 to 5.3%), N content (from 2.1 to 1.6%), and DIVMS (from 71.0 to 64.8%) from 30 to 86 days, respectively. The DIVMS was affected (P<0.005) by the interaction cutting age x urea treatments, with the valor more high of 74.2% at 30 days of cutting age with 3% of urea. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.alpa.org.ve/ojs/index.php/ojs_files/article/viewFile/17/13 |
| Alternate Webpage(s) | http://www.bioline.org.br/pdf?la04007 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
