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http://ecosur.repositorioinstitucional.mx/jspui/handle/1017/1601| Aprovechamiento del substrato degradado por pleurotus ostreatus en la alimentación de ovinos y en la producción de vermicomposta | |
| José Heber De León Monzón | |
| José E. Sánchez Regino Gómez Álvarez José Nahed Toral | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Pleurotus ostreatus;Ovejas;Vermicultura;Hongos comestibles;Nutrición animal Pleurotus ostreatus;Sheep;Earthworm culture;Mushrooms edible;Animal nutrition | |
| Resumen en inglés: "The potential of the substrate biodegraded by Pleurotus ostreatus (SMS) in sheep (Criollo “Chiapas” breed) feeding was evaluated. The SMS (pH = 8.1 ± 0.45) utilized in this study was a mixture o f corn cobs (without grains) and corn stubble, which was treated by immersion in alkaline water prior to inoculation with P. ostreatus. The treatments (Phase I) were: Ti = 100% Kikuyu grass (K), Pennisetum clandestinunr, T2 = 80% K + 20% de SMS; T3 = 60% K+40% de SMS and T4 = 40% K+60% SMS; in each o f the four treatments, the sheep were given 100 g o f concentrated commercial feed (CF,18% protein). In Phase II, the same treatments were tried as in Phase I, but the feed was enriched with 20g o f molasses (M), 6g o f urea (U), 3g o f mineral salts (MS) and 200g o f CF. Intake, digestibility, nitrogen balance (NB), weight gain and wool growth were evaluated. In Phase I, no difference was found (P>0.5) amongst the treatments for intake, in vivo digestibility (IVD) and NB in most o f the nutrients; except in the intake o f crude protein (CP) and fiber-bound nitrogen (N-f), where Ti (89.52 and 5.23 g d-1 respectively) and T2 (80.57 and 4.8 g d -1 respectively) were greater than T4 (51.19 and 3.31 g d -1 respectively; P<0.05) and the intake o f lignin (L) was greater (43.50 g d-1) in T4 with respect to Ti (33.28 g d-1; P<0.5). The IVD of the CP, N -f and NDF were higher (11.69, 0.56, and 40.78 g d-1 respectively) in Ti than in T4 (4.93, 0.16, and 28.58 g d-1, respectively; P< 0.05). As to the NB, differences were found only in the nitrogen consumed (Nc) in Ti (14.32 g d-1) and in T4 (8.19 g d-1). In Phase II, intake, IVD and NB all improved, the best results having been found in T2 and in Ti. As to weight gain and wool growth, no significant difference was found amongst the treatments (P>0.5). In both Phase I and Phase II, the results for intake, IVD and NB show that there is no difference (P>0.05) between T2 and Ti. This supports the conclusion that up to 20% SMS may be incorporated into sheep feed. " | |
| 2003 | |
| Tesis de maestría | |
| Español | |
| Público en general | |
| CIENCIAS AGRARIAS | |
| Aparece en las colecciones: | Tesis |
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| 100000031388_documento.pdf | Documento electrónico | 18.92 MB | Adobe PDF | Visualizar/Abrir |