Navegando por Assunto "Ruminante"

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Acesso aberto (Open Access)
Composição química e valor nutricional para grandes herbívoros das folhas e frutos de Aninga (Montrichardia linifera, Araceae)
(Instituto Nacional de Pesquisas da Amazônia, 2010-12) AMARANTE, Cristine Bastos do; MÜLLER, Regina Celi Sarkis; DANTAS, Kelly das Graças Fernandes; ALVES, Claudio Nahum; MÜLLER, Adolfo Henrique; PALHETA, Dulcidéia da Conceição
The aninga (Montrichardia linifera, Araceae) is often found in the floodplain ecosystems of the Amazon and is the natural diet of animals such as manatees, turtles, fish, buffalo and cattle. Aiming to contribute to the chemical knowledge and nutritional value of this plant, leaves and fruits of M. linifera were collected on the banks of the Guama and Maratauira rivers, Para State, Brazil. We determined the moisture content, ash mineral composition, lipids, protein, fiber, carbohydrate and caloric value of the fruits and leaves. The mineral composition (Ca, Mg, Cu, Fe, Zn and Mn) was obtained by flame atomic absorption spectrometry. The leaves and the fruits of M. linifera had caloric values of 289.75 kcal and 355.12 kcal, respectively; and a low protein concentration, 0.44% for leaves and 0.24% for fruits. Manganese concentrations were 3279.46 mg kg-1 for leaves and 18151.53 mg kg-1 for fruits. These Mn concentrations are considered toxic, as they exceed the maximum tolerable for the ruminants (1000 mg kg-1). The M. linifera has the capacity to absorb and bioaccumulate large amounts of Ca, Mg and Mn in the soil, which makes it inappropriate for exclusive use as food for turtles, cattle and buffaloes, requiring more studies for its application as part of the diet.
Acesso aberto (Open Access)
Valor nutritivo da torta de castanha-do-pará (Bertholletia excelsa Bonpl.) para alimentação de ruminantes
(Universidade Federal do Pará, 2014-02-28) RAMOS, Aline Fernanda Oliveira; SILVA, André Guimarães Maciel e; http://lattes.cnpq.br/8940750096354420; FATURI, Cristian; http://lattes.cnpq.br/8389692203753236; LOURENÇO JÚNIOR, José de Brito; http://lattes.cnpq.br/2919433679918544
Nutrition is one of the most important links of the production process, either by the costs involved or by establishing the efficiency and productivity of the animal. At the same time the brazilian agricultural industry lies in the expansion with the use of oil, especially in the cosmetic and biodiesel sector, which generates waste due to obtain oil process. Thus, the use of these by-products in animal feed is an alternative for both activities, since for livestock food option means good availability and low cost, and for agribusiness means reducing accumulation and inadequate destinations of their waste. Before using a new food in feed formulations, experimental measurements are necessary to determine the chemical composition and evaluate the responses of animals that received the new the ingredient in its diets, as the voluntary intake, nutrient digestibility and animal’s behavior, which is important to complement and strengthen the nutritional data, especially because they represent the effects of the quality of food in the digestive activities. Thus, the byproduct of the processing of the almond brazilian nut and its effects on voluntary intake, digestibility and feeding behavior displayed by sheep fed with increasing levels of inclusion, 0, 15, 30 and 60% in the diet based on corn silage were assessed. Sixteen males lambs, uncastrated at 33 kg average were used, kept in individual metabolic cages, which received the diet in two meals, at 8a.m and 6p.m, with the offer set to allow 15% on the remains. Samples of the remains and feaces were collected and analyzed to determine the consumption and digestibility of nutrients. For four days the animals intake behavior were evaluated in relation to their activities of feeding, ruminating and idling, occurrences and duration of ruminated bolus and rumination chewing, and the efficiency of feeding and ruminating. The Brazil’s nut (BN) is a by-product with potential for ruminant nutrition, with considerable amounts of proteins and lipids, but due to its high content of ether extract in inclusion levels higher than 16.3% of the maize diet, affect rumen fermentation, especially fiber digestibility, the dry matter intake and the ruminating time in the animals.