TCC - Zootecnia (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/478
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Item Caracterização da composição química e da digestibilidade in vitro de silagens de mucilagem do desfibramento do sisal, aditivadas ou não, em diferentes tempos de armazenamento(2019-06-28) Galvão, Rennan Tavares Cordeiro; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/0739887381555573Cattle raising is one of the main activities in the Brazilian semi-arid region, but due to the climate marked by the great water restriction during most of the year this activity is a great challenge for the producers. The sisal (Agave sisalana Perrine) is a plant native to Mexico, which has adapted and is in good extension of the Brazilian northeast. It is mainly used for the extraction of the fiber in its leaves, but only 3% to 5% of the material is used for this purpose, so the use of the sisal defibration co-products, especially the mucilage, is an alternative feedingstuffs, including in the form of silage. Because it is a material with high humidity, the use of moisture-sequestering additives in silage promotes higher quality of the product. In this context, the objective was to characterize the chemical composition and in vitro digestibility (DIV) of dry matter (DM), organic matter (OM) and neutral detergent fiber (NDF) of pure sisal defibration mucilage silages (SIL- MUDS) and corn bran (SIL-MUDS MI) and wheat bran (SIL-MUDS TRI) in different opening times. The experiment was carried out at the Animal Science Department of the Federal Rural University of Pernambuco. For the preparation of the silages the material was acquired in a sisaleira property located in the state of Paraíba, in the municipality of Barra de Santa Rosa. Wheat and Wheat Bran were obtained from agricultural products stores in the regional trade. The mixture was made in the proportion of 75 MUDS: 25 additive and silage was done manually in 12 polyethylene bottles with volume of 200 liters and 4 storage times (30, 60, 90 and 120 days). Analyzes for determination of the chemical composition were made according to Detmann et al. (2012) and the IVD following the principles proposed by Tilley and Terri (1963). For the chemical composition of the silages it was observed that the inclusion of the additives promoted a 93% increase in the DM content and 6% to 9% in the OM content in relation to SIL-MUDS. The NDF content of SIL-MUDS MI was 53% lower than SIL-MUDS and SIL-MUDS TRI was 16.9% higher than SIL-MUDS. For the storage times, there was a small percentage variation, except for the crude protein content (PB), where SIL-MUD MI and SIL-MUDS TRI presented increases of 41.78% and 18.30%, respectively, of the 30 at 120 days of storage. With regard to MS DIV, SIL-MUDS MI presented a 15% higher value than SIL-MUDS. While the DIV of MO was 12.8% higher in SIL-MUDS MI than in SIL-MUDS, and 22.1% lower in MUDS + TRI silage compared to MUDS silage. Thus, the inclusion of ground corn and wheat bran as additives for mucilage silage of the Sisal defibration promotes the maintenance of DM content and chemical composition of silage, as well as DIV of MS, OM and NDF.Item Silagens de mucilagem do desfibramento do sisal, com ou sem aditivos, na alimentação de ovinos Soinga: respostas fisiológicas e consumo de água(2019-06-18) Lima, Ana Carolina Costa Pinto; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/1568605868923865The effect of sisal mucilage silage, with and without additives, on the feeding of lambs was studied. Twenty eight male Soinga lambs, whole, with initial age of five months and initial live weight of 19.79 kg, were distributed in a completely randomized design with 4 treatments and six replicates, with 28 animals used for consumption of water and 16 animals for the evaluation of the physiological parameters. Experimental diets were composed of four treatments, forage palm as the control diet (CON) and mucilage silage of pure sisal (MUDS) defibration, and supplemented with maize (MUDSMI) and wheat (MUDSTRI). To evaluate the physiological parameters, the rectal temperature (° C), the heart rate (beats / min), the respiratory rate (motions / min) and the pelt temperature (° C) were measured. Eight liters of water, previously weighed, were provided each morning in each drinking fountain and the next morning, before the new water supply, the water fountain was again weighed, so that the water consumption was calculated by the difference between the weights of the water and leftovers. In addition, monitoring of weather information was carried out. The animals submitted to a diet containing MUDS silage supplemented with wheat bran had the highest (P <0.05) respiratory rate (88 beats per minute), however, the lowest skin temperature (31.37 ºC). MUDS silages with no additive lead to less voluntary water consumption than the additive silages, without, however, altering the total water consumption by the animals. Thus, the Soinga sheep, even under conditions of caloric stress, used thermoregulatory mechanisms to dissipate heat and thus maintain body homeothermia.