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Uso de desperdicios de tubérculos de papa y de rastrojos de maíz tratados con urea en la alimentación estratégica de ovinos
| Content Provider | Semantic Scholar |
|---|---|
| Author | Aliaga, Ronald Jiménez |
| Copyright Year | 2007 |
| Abstract | -- The effects of particle size (PS) and type of ammoniation-preservation (AP) on the digestibility and intake of corn crop residues were evaluated using sheep as test animal. In a second experiment, the optimum PS-AP combination was used a basal diet for evaluating the effect of increasing levels of supplementation with potato by-products on sheep liveweight gain. PS (1, 2, 3, and 4 cm) and type of AP [non ammoniated no silage (NA), and three ammoniated treatments with different plastic silage: aerial silage on the soil (AS), silage on the soil covered with ground (SC) and silage interred in a compost pit (SI)] were arrangement in a 4 x 4 factorial blocked by sheep (4). There was no effect of PS. On the other hand, ammoniated silage treatments (AS, SC, SI) significantly (p less 0.01) improved the digestibility and intake of the corn crop residue. Particularly, AS and SI performed better in protein and fiber digestibility. In short, the 2 cm-AS combination was considered the most appropriate from an economic, practical and technical point of view. In the second experiment, 120 Junin sheep (69 female and 51 male) were used in a factorial arrangement 2 x 5 (sex x feeding type: 8 h/day of grazing and four treatments with addition of 0, 200, 400 and 600 g of potato by-products over a 2 cm-AS corn crop residue basal diet on a restricted, 4-h a day grazing systems for 24 days. Liveweight gains were higher (p less 0.01) for male sheep. The response pattern to the increasing levels of potato by-products suplementation was quadratic (p less 0.01) whith a level of 570 g of potato by-products giving a biological and economic performance similar to the full (8-h a day) grazing systems. Our data suggest that the inclusion of 570 g of potato by-products on ammoniated corn crop residues is a practical and economical feeding strategy for fattening male sheep on a 4-h a day restricted grazing regime during the dry season in the Peruvian Highland. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cybertesis.unmsm.edu.pe/bitstream/handle/cybertesis/1247/Jimenez_ar.pdf;jsessionid=B87E6B9E03D36EE7CE076834F10AD4E2?sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
