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Universidade Federal do Ceara (2005)

Evaluation of diets containing silage of maniÃoba (Manihot pseudoglaziovii Pax. Et. K. Hoffman) during the final stage of goats in the brazilian semi-arid region

Medina Fernando Thomaz

Titre : Evaluation of diets containing silage of maniÃoba (Manihot pseudoglaziovii Pax. Et. K. Hoffman) during the final stage of goats in the brazilian semi-arid region

Auteur : Medina Fernando Thomaz

Université de soutenance : Universidade Federal do Ceara

Grade : Mestre em Zootechnia 2005

Résumé partiel
The present work aimed to evaluate the consumption, the digestibility of nutrients, the daily average weight gain, the nutriment conversion, as well as the weight and yield of carcass of goats being held in confinement during the final stage, receiving diets containing silage of manioc associated to different energy sources. 15 goats without defined racial standard, not castrated, with initial average life weight of 21,0 kg, were allocated in delineation in casual blocks, with three treatments and five repetitions. To determine the consumption and the coefficient of apparent digestibility of nutrients in the diets, a digestibility test was undertaken that consisted of 14 days of adaptation and five total excrement collections, being the diets composed by 54% bulky silage of manioc (Manihot pseudoglaziovii Pax. Et. K. Hoffman) and 46% concentrated energetic food : corn meal (Zea mays), scraped cassava (Manihot esculenta Crantz), enriched with 1.8% urea, and cactus forage meal (Opuntia ficus indica), enriched with 1.1% urea. A confinement period of 63 days was used to determine the daily average weight gain, nutriment conversion, and weight and yield of carcass. During this phase of the experiment, the combination of silage and scraped cassava was excluded, in function of the intoxication possibility for acid cianidrico, potentates by the combination ; detected in the digestibilidade period and the statistic delineation consisted of two treatments and eight repetitions

Mots clés  : silagem, maniÃoba — silage, manioc

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Page publiée le 29 décembre 2015, mise à jour le 11 septembre 2018