COMPORTAMENTO RUMINAL DE TOURINHOS ALIMENTADOS COM DIETAS DE GRAMÍNEA E CONCENTRADO COMERCIAL SUPLEMENTADAS COM HIBISCO E SACARINA
Aiming at evaluating hibiscus (Hibiscus rosa-sinensis) and sacarina as supplements for young bulls, four crossbred animalswere displayed in a Latin square experimental design. The following treatments were performed: 1 – 75% pasture + 25% concentrate; 2 – 50% pasture + 25% concentrate + 25% hibiscus...
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Published in | Ciência animal brasileira Vol. 12; no. 1; pp. 26 - 36 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Universidade Federal de Goiás
31.03.2011
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Subjects | |
Online Access | Get full text |
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Summary: | Aiming at evaluating hibiscus (Hibiscus rosa-sinensis) and sacarina as supplements for young bulls, four crossbred animalswere displayed in a Latin square experimental design. The following treatments were performed: 1 – 75% pasture + 25% concentrate; 2 – 50% pasture + 25% concentrate + 25% hibiscus; 3 – 50% pasture + 25% concentrate + 25% sacarina; and 4 – 25% pasture + 25% concentrate + 25% hibiscus + 25% sacarina. Diet composition, rumen fermentation, DM and CP degradation rates were evaluated. Rumen pH values varied from 5.82 to 6.98, for diets supplemented with hibiscus, at 9h post-feeding, and with sacarina, at the feeding moment. Ammonia N contents did not present great changes when only hibiscus or sacarina were added to the diet, but there was a significant effect when both were added P<0.001). Rumen SCFA concentrations were lower due to saccharine presence in the diet (P<0.01). Sacarina diet presented higher values for readily soluble fraction for DM and CP (P<0.01). Sacarina promoted a higher effect on DM degradation of total diets (P<0.05). Hibiscus and sacarina inclusion increased the degradation of diets for grazing young bulls (P<0.05). Including these feed to the concentrate, the rumen environment and functionality were improved. Thus, it is viable the partial replacement of concentrate by the tested feed. |
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ISSN: | 1518-2797 1809-6891 1089-6891 |
DOI: | 10.5216/cab.v12i1.4878 |