TCC - Zootecnia (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/478
Navegar
5 resultados
Resultados da Pesquisa
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 Implicações do uso de aditivos sobre as características fermentativas de silagens de mucilagem de sisal(2019-01-16) Silva, Erick Alexandre Magalhães; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/2162720356705857The modernization of food processing provided an increase in production of agroindustrial residues, boosting the search for alternatives of proper disposal, such as their utilization as feedstuff for ruminants. Among these agroindustrial residues, there is mucilage resultant from sisal shredding. The inadequate disposal ofthis material can cause great environmental damage, justifying the present study, which intents to better use this residue. The ensilage appears as an alternative to conserve it, but due to the high humidity that the residue presents, it is suggested that they might be ensiled with additives aiming to increase dry matter content for success of the process. The objective of this work was to evaluate the effect of storage time of silages on the chemical composition and microbiology in the ensilage process after silos opening. The experiment was carried out at the Animal Science Department of the Federal Rural University of Pernambuco (URFPE), Recife (PE). Forty-eight experimental silos were used, distributed in experimental treatments that consisted of: mucilage of sisal shredding (MUSS), MUSS silage with corn meal (MUDS-CB), MUSS silage with wheat meal (MUSS-WB), and MUSS silage with cottonseed meal (MUSS-CM). To evaluate the fermentation pattern, the silos were opened at 7, 14, 30 and 60 days post-ensiling. Samples were collected from both mixtures and ingredients separately from about 500 g of sisal mucilage silages at all opening times of the silos (7, 14, 30 and 60 days) and from material in natura (time 0). Bromatological analyzes were performed, as well as ammoniacal nitrogen (N-NH 3) and determination of organic acids. There was an effect (P <0.05) of storage time on DM content when the additives were used (ground corn, wheat bran and cottonseed) compared to the control treatment (without additive). When analyzing the other variables (DM, pH, Organic acids), it was observed that the treatment MUSS with corn meal or MUSS with wheat meal were the most effective in the conservation of the residue in the silage form, being the decision of choosing one of the additives based on their market price.Item Resíduo da indústria de doces em associação à Protenose® na alimentação de pequenos ruminantes fistulados: consumo e digestibilidade(2019-01-18) Silva, Dijaina Ferreira da; Véras, Antonia Sherlânea Chaves; Almeida, Marina de Paula; http://lattes.cnpq.br/7584834665120683; http://lattes.cnpq.br/0074248045711399; http://lattes.cnpq.br/7458404797378748The objective of this study was to evaluate the effect of different levels of residues from the candy industry in substitution of corn for the feeding of small ruminants, on consumption and apparent digestibility of dry matter and its components. The experiment was conducted at the Universidade Federal Rural de Pernambuco (UFRPE). Four male sheep and four male goats were studied, castrated and fistulated in the rumen, with average initial body weight of 71.9 kg and 64.85 kg, respectively, distributed in two contemporary 4x4 Latin squares. The experiment had a duration of 76 days, with four periods of 19 days each, being 12 days for adaptation to the experimental conditions and 7 days for data collection and sampling. The experimental diets were composed by Tifton 85 hay as forage; grounded corn, soybean bran, residues from the industries of candy, gum, powdered juice and derivatives in combination with corn gluten (Protenose ®) and mineral blend, as concentrated. The treatments consisted of inclusion of residues from the candy industry at levels of 0, 33, 66 and 100%. The variables were evaluated by analysis of variance and regression, using PROC MIXED and PROC REG of the SAS. Consumption of dry matter (DM), mineral matter (MM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), total carbohydrates (TCHO) and total digestible nutrients (TDN) were not influenced (P> 0.05) by the inclusion levels of residues from the candy factory in the diet, presenting averages of 874.89, 59.280, 815.61, 113.49, 345.20, 685.21 and 660.51g/day, respectively. In contrast, there was a significant effect on ethereal extract (EE) and non-fibrous carbohydrates (CNF) intake. The intake of EE was influenced (P <0.05) by dietary treatments, decreasing linearly as the sweet residue content increased. There was a quadratic effect on CNF intake as corn substitution was performed. Increasing levels of candy residues in the diets of small ruminants did not have an effect on the apparent digestibility of DM, OM, NDF and TCHO, with average values of 782.8, 792.2, 650.9 and 795.3g/kg, respectively. However, they favored an increasing linear effect on the apparent digestibility of CP and CNF and a linear decreasing effect on the apparent EE digestibility. Residues from the candy industry in association with Protenose® may replace up to 100% based on the dry matter of the diet of small ruminants, without adversely affecting the intake and apparent digestibility of the nutrients.Item Consumo de água e comportamento ingestivo de caprinos e ovinos submetidos a dietas a base de silagens de mucilagem de sisal, aditivadas ou não(2019-01-16) Santana, Carolina Louise Nascimento de; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/3950204773665511The objective of this study was to evaluate the ingestive behavior and the water consumption of goats and sheep fed sisal mucilage silages (MUC), whether or not added or not. Four goats and four sheep, with no defined breed pattern, were employed, with permanent fistula in the rumen. The animals were kept in individual stalls and distributed in a 4x4 Latin square experimental design, in subdivided plot scheme so that the effect of the animal species was allocated in the plot and the treatments in the subplots. To study ingestive behavior, the animals were observed every ten minutes for 24h. The estimated water consumption was determined by the weight difference of the buckets before and after ingestion, taking into account the amount evaporated. There was no interaction (P> 0.05) between the treatments and the animal species for any of the studied variables. However, sheep presented higher (P <0.05) dry matter (DM) and neutral detergent fiber (NDF) consumption in relation to goats. Even dry matter intake (CMS) showed differences among species, feeding, rumination and leisure times did not present differences. However, when comparing caprine and ovine species, it was found that feed and rumination efficiency of both DM and NDF was higher for the ovine species. The highest intake of NDF for animals fed hay in the diet, regardless of the species, was higher than those that received the silage, especially for those fed with corn or wheat. This reflected lower (P <0.05) rumination time and higher (P <0.05) leisure time for the animals submitted to the diets containing the MUC silages. Considering the animal species effect, it was recorded that for goats the higher the NDF levels in the diet the greater the time spent with rumination, but with lower (P <0.05) rumination efficiency, the inverse behavior was recorded for sheep. There was interaction (P <0.05) between the effects of the treatments and the animal species for ingestion of water via food, via drinking fountain and for total water consumption. Sheep fed wheat MUC silage recorded higher total water consumption (P <0.05) than goats. The use of sisal mucilage silages, whether or not added, improves rumination efficiency and leads to increased voluntary water consumption by animals.Item Concentração de minerais na palma forrageira e suas implicações no metabolismo de ruminantes: revisão de literatura(2018-08-22) Silva, Marisol Ramos da; Guim, Adriana; Silva, Tomás Guilherme Pereira da; http://lattes.cnpq.br/3632014794052859; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/1463080663779484The forage palm is used in the feeding of ruminant animals, mainly in the regions that have low rainfall indexes, because it presents great adaptability to more arid climates and presents great amount of water in its composition, contributing significantly to the watering of the animals. However, this forage has other characteristics such as imbalance of minerals (Ca: P, for example), high concentrations of calcium (Ca), potassium (K) and magnesium (Mg) and low concentrations of phosphorus (P) and sodium (Na) that signal the need for care in the mineralization of the herd. These imbalances can lead to problems in productive performance, reproductive health and health of ruminant animals that consume this fodder resource. Given the importance of knowledge of the mineral composition of foods to formulate suitable diets for ruminant animals the objective was to carry out a bibliographical survey on the role of minerals in ruminant feeding and the concentration of these in the forage palm.