Produção Animal
URI permanente para esta coleçãohttps://repositorioacademico.universidadebrasil.edu.br/handle/123456789/34
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3 resultados
Resultados da Pesquisa
Item Uso parenteral de cromo orgânico em bezerras da raça holandesa(Universidade Brasil, 2022) Silva, Cairon Rony Bezerra da; Melo, Gabriel Maurício Peruca de; Melo, Wanderley José deThis study aimed to evaluate the effects of different doses of parenteral organic chromium in 24 Holstein heifers. The experiment was carried out in a completely randomized design, with 3 treatments (T1. Control - without parenteral chromium supplementation; T2. Parenteral supplementation of organic chromium - 100 mg/animal every 28 days; T3. Parenteral supplementation of chromium in the organic form - 200 mg per animal applied at intervals of 28 days) and 8 repetitions. The experiment lasted 56 days, with weighing of the experimental animals every 28 days. The parameters of daily weight gain and total weight gain were evaluated. Chromium supplementation promoted an improvement in the weight performance of the heifers, with an average daily weight gain of approximately 30% higher than in the control group, regardless of the evaluated dose. It was concluded that organic chromium, independent of a supplementary way, for heifers of the breed allows additional weight gain.Item Coenzima Q10 em dieta para codorna japonesa (Coturnix japonica doméstica) em fase de postura(Universidade Brasil, 2021) Carvalho, Jackeline Silva de; Melo, Wanderley José de; Melo, Gabriel Maurício Peruca deThis study aimed to evaluate the productive performance of laying quails fed different levels of Coenzyme Q10 (CoQ10). The trial was installed in a completely randomized design, in a 3x3 factorial analysis scheme analyzed as repeated measures over time, with 5 replicates per treatment (12 birds per box). Factor (A) consisted of 3 treatments (T1. Without addition of CoQ10 in the diet; T2. Diet with addition of 100 mg CoQ10.kg-1 MS; T3. Diet with addition of 200 mg CoQ10.kg-1 MS). Factor (B), for three experimental periods (C1. From 1 to 28 days of supplementation; C2. From 29 to 56 days of supplementation; and C3. From 57 to 86 days of supplementation). Feed intake, laying rate, average egg weight and feed conversion were evaluated. There was no interaction between the doses of CoQ10 and the production cycles, and only the weight of the egg was not significant for the dose factor of CoQ10. Feed intake increased linearly, the laying rate and feed conversion showed a quadratic response with a maximum point at 87.43 mg CoQ10 kg-1 and 100.17 mg CoQ10 kg 1, respectively. The productive cycle factor showed a quadratic response with the maximum point of feed consumption after 53 days of experimentation, the laying rate decreased with the course of the experiment and the reverse occurred with egg weight and feed conversion. The inclusion of 100 mg CoQ10 kg-1 MS in the diet for Japanese quails, in the initial phase, increases the laying rate, which results in a better feed conversion which may indicate a possible action on reproductive physiological processes. The inclusion of 200 mg CoQ10 kg-1 DM of feed does not bring productive benefits and, due to the reduction in feed consumption, may represent the upper limit of inclusion of CoQ10 in the bird's diet.Item Diferentes programas de alimentação na fase inicial para matrizes de corte(Universidade Camilo Castelo Branco, 2016) Tremarin, Jandrei Philippi; Sakamoto, Márcia Izumi