Restos culturais do abacaxi amonizado na substituição do volumoso na dieta de cabras lactantes

Abstract

The objective of this study to determine the bromatológicas features, the best dose of urea and ammonization time later assessed the levels of replacement of tifton Hay Hay of cultural remains by pineapple ammoniated in the diets of lactating goats. Initially the qualitative characteristics analyses were made to characterize the nutritional value of pineapple cultural remains treated with urea, in completely randomized design and 5 x 4 factorial arrangement, five doses of urea (0, 2, 4, 6 or 8%), on the basis of the dry matter of the bulky and four amonização times (0, 14, 28 and 42 days). After obtaining the values of the analyses, chose the Hay treatment of cultural remains of pineapple with 6% of urea during 28 days of ammonization for best results use nutritional for the feeding of goats instead of hay of tifton. Used five goats of mixed Anglo-Nubianas and Alpine, distributed in 5 x 5 Latin square design. With average body weight of ± 0, 61kg 39.63 after 30 days of delivery. The goats were given diets in proportion to bulky focused equivalent to 50:50. With 5 levels of replacement (0, 20, 40, 60 and 80%) of tifton Hay Hay of cultural remains by pineapple ammoniated. Have been assessed, the dry matter consumption, ingestivo behavior, production and milk composition. The results of the levels of dry matter, crude protein, neutral detergent fibre, hemicellulose, lignin and nitrogen neutral detergent insoluble presented effect (p < 0.05) to increasing doses of urea, the levels of hemicellulose, lignin and nitrogen insoluble in neutral detergent presented effect (p < 0.05) for the different times of ammonization. The amonização with use of urea promoted reduction of fiber content, and increase in non-protein nitrogen content. There was downward effect (p < 0.05) in the consumption of hemicellulose and cellulose, however the lignin increased consumption (p > 0.05). Replacement levels of cultural remains of ammoniated pineapple did not influence (p > 0.05) the ingestivo behavior of animals evaluated activities. These results are related to the reduction of neutral detergent fiber in the Hay of the cultural remains of ammoniated pineapple (RCAA), in relation to the Hay of tifton. There was no influence (p > 0.05) in the production of milk, fat and protein in milk under the conditions studied. Hay of the cultural remains of pineapple ammoniated decreases production costs of lactating goats, because the values spent on diets reduced the extent to which increased levels of hay replacement of tifton. The replacement with up to 8% of urea promoted improvement in the quality of cultural remains amonized (s) pineapple. The replacement of up to 80% of the Hay of tifton of hay by pineapple ammoniated meets the nutritional requirements of lactating goats with production of up to 2 kg of milk.