Níveis de cloro para codornas japonesas (Coturnix coturnix japonica) nas fases de crescimento e produção

• Autor(a) principal: Bezerra, Roseane Madeira
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/19047
• topic: Zootecnia; Balanço eletrolítico; Cloreto de amônia; Minerais; Produção; Sal; Electrolyte balance; Ammonium chloride; Minerals; Production; Salt; Ovos - Produção; Nutrição animal; Ave criação

In order to evaluate the effects of chlorine levels in the diet of growing and production of Japanese quails were conducted two experiments in which we assessed the levels of 0.07, 0.12, 0.17, 0.22, 0.27 and 0.32% chlorine. In the first experiment (growing phase), 384 quail on a day-old distributed in a completely randomized design with six treatments of eight replicates of eight birds each. According to the results for the period from 1 to 42 days, with the addition of chlorine level in the diet linearly increased feed intake (g/bird) and weight gain (g/bird) and a linear decrease in the ratio of consumption water/feed intake and excreta moisture. However, feed conversion (g/g), water intake (ml/bird/day), the digestibility of dry matter (CDMS), nitrogen (CDN) and gross energy (GEDC) and the values of metabolizable energy (AME) and apparent nitrogen corrected (AME) of feed were not affected by the level of chlorine still in testing, we found that chlorine levels received by the quails in the growing phase did not significantly affect the performance of phase posture. In the second experiment, 288 quail with seventeen weeks of age were distributed in a completely randomized design with six treatments, eight replicates and six birds per experimental unit. Chlorine levels did not significantly influence feed intake (g/bird/day), water consumption (ml/bird/day), the percentage of stance (%), egg weight (g), the mass of egg (g/bird/day), feed conversion (g/g), the moisture of excreta, the digestibility of dry matter (CDMS), nitrogen (CDN) and gross energy (GEDC), the metabolizable energy apparent (AME) and corrected apparent (AME), Haugh Units, the percentages of albumen, yolk and shell. However, the specific gravity increased linearly with the addition of chlorine in the feed. Considering the results, we can recommend diets for Japanese quails in the growing phase (1 to 42 days) and production made with corn and soybean meal can contain chlorine levels up to 0.32% subject to the parameters performance and egg quality