Navegando por Autor "Guim, Adriana"

Agora exibindo 1 - 15 de 15

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/0739887381555573
Cattle 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.
Comportamento ingestivo de caprinos e ovinos recebendo diferentes fontes de carboidratos associado à ureia em substituição ao farelo de soja
(2018-08-22) Silva, Rita de Cássia Manso; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/0329511011280265
Northeastern Brazil has a great ability to raise goats and sheep in the semiarid region, but there is a difficulty in homogeneous production of food during the year. The use of alternative food in feed that is adapted to the semi-arid climate, such as forage palm and manioc, can minimize the problem. The objective of this study was to analyze the effect of different sources of carbohydrates associated with urea in replacement of soybean meal on the ingestive behavior of sheep and goats. Four goats and four sheep with permanent fistula in the rumen were used, arranged in a 4x4 Latin square design, receiving the experimental diets with different sources of carbohydrates and urea replacing the soybean meal. The diets were composed of four treatments: a) corn and soybean meal, b) corn and urea, c) manioc and urea scrap, and d) forage palm and urea. Data were analyzed by analysis of variance and the means were compared by the Tukey test, at 5% significance. There was no significant difference (P> 0.05) in the ingestive behavior between goats and sheep. However, animals fed the diet containing manioc and urea showed a longer time in leisure (977.50 minutes / day), followed by the animals of the diets with forage palm and urea (845 minutes / day) corn + soybean meal (822.50) and corn + urea (821.25 minutes). The feeding and rumination efficiencies were not influenced by the animal species either by the diets. Thus, it is concluded that the association of energetic foods produced in the region (palm and manioc rasa) associated with urea does not compromise the ingestive behavior of goats and sheep.
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/1463080663779484
The 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.
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/3950204773665511
The 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.
Fontes de lipídeos associados à palma forrageira sobre as características sensoriais da carne ovina
(2022-10-07) Nascimento, Thaís Fernanda do; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/5238680527935892
The search for food that meets commercial and healthier requirements has created a greater search for meat of higher quality and nutritional value. In this paper, the goal was to evaluate the effect of diets with different lipid sources associated with forage palm on the sensory characteristics of sheep meat. The research included 39 male animals, without a defined racial pattern, castrated, 4 months old and an average initial weight of 22 kg. The experiment took place in the Department of Animal Science, sheep and goat farming sector of the Universidade Federal Rural de Pernambuco, located in Recife, Pernambuco. The treatments consisted of Tifton Hay and Forage Palm as forage, and ground corn, wheat bran and mineral salt as concentrate. In the experimental diet, cottonseed, corn germ and coconut cake were inserted in the concentrated feed. The animals were housed in individual suspended stalls, containing feeders and drinkers, distributed in a covered shed. The experiment lasted 60 days, with the first 30 days aimed at adapting the animals to diets, facilities and management. The last 30 days were devoted to data collection and evaluations. From the Longissimus lumborum muscle, the characteristics, sensory attributes and commercial value of sheep meat were evaluated. The diets utilized with lipid sources did not show significant differences in the sensory characteristics of sheep meat (P>0.05), showing a positive positioning of the evaluators regarding purchase intention, which makes it a good alternative for lambs in the termination phase.
Histomorfometria do epitélio omasal de ovinos alimentados com dietas baseadas em palma forrageira
(2018-08-22) Castro, Amanda Lucy Ferraz de; Guim, Adriana; Silva, Tomás Guilherme Pereira da; http://lattes.cnpq.br/3632014794052859; http://lattes.cnpq.br/5179137865818915
The objective of this study was to evaluate the effect of diets based on forage palm on histomorphometric and histopathological parameters of omasum epithelium and ovine abomasum submitted to forage palm diets. Thirty-two lambs with no defined racial pattern were used, male, uncastrated, with a mean age of six months and initial body weight of 21 ± 2.06 kg, housed in individual stalls equipped with feeder and drinking fountain. The animals were distributed in a completely randomized design with four treatments and eight replicates. The experimental period was 73 days and the experimental treatments consisted of a base diet (elephant grass hay, maize corn meal, soybean meal, urea and mineral salt) and three other diets in which elephant grass hay was replaced in 68% by genotypes of forage palm (small, IPA-Sertânia or Mexican elephant ear), all formulated to allow weight gain of 200 g day-1. After 73 days of confinement, the animals were weighed and slaughtered following the norms in force in the country. The weights of the stomachs and their respective contents were quantified, as well as tissue samples of the omasum and abomasum were collected for histological analysis. Up to the present moment, it can be stated that the diets based on forage palm provided greater stomach weight, with lower content.
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/2162720356705857
The 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.
Parâmetros fisiológicos e consumo voluntário de ovinos alimentados com fontes de lipídios associados à palma forrageira
(2022-05-31) Medeiros, Rodrigo Barbosa de; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/1454346400034264
The objective was to evaluate the effect of different sources of lipids associated with forage cactus in the diet of sheep on the thermal comfort of the animals through physiological indicators and dry matter consumption. The maximum and minimum temperatures, relative air humidity, ambient air temperature of the experimental shed were monitored, whose data were used to calculate the temperature-humidity index (THI) and the Black Globe-Humidity Index (BGHI) aiming at estimate the thermal comfort of animals. The experiment was carried out at the Departamento de Zootecnia (DZ) of the Universidade Federal Rural de Pernambuco (UFRPE), located in Recife-PE. Twenty-four male lambs were used, with a mean age of six months and mean initial body weight of 22.0 ± 1.11 kg. The experimental period was 8 weeks, with isonitrogenous diets, based on forage cactus, tifton hay, maize corn, soybean meal, mineral mixture, with 3 treatments, T1 being composed of cottonseed, T2 of extra fat corn germ and T3 of dry coconut film. In order to evaluate the physiological parameters, respiratory frequency (RF), heart rate (HR), rectal temperature (RT) and body temperature (BT) were measured, the latter being measured at 4 points on the animal's body, forehead, neck, loin and shin. Data were collected every 2 experimental weeks at 8:00 am and 3:00 pm. The temperature and relative humidity of the air were measured throughout the experiment. The design used was a completely randomized design in a split-plot scheme, allocating the effect of the treatment (diets containing different varieties of lipids) in the plots and in the sub-plots the effect of the evaluation shift (morning and afternoon). The obtained data were submitted to analysis of variance and average grade comparison by Tukey test and Pearson correlation analysis between variables. There was no significant interaction between the factors (diet and shift), and there was no dietary effect on the respiratory frequency and body temperature variables, however, the heart rate and rectal temperature variables showed a difference (p ≤ 0.05) on the shift, being higher in the afternoon. Despite being susceptible to heat stress according to the high THI and BGHI, thanks to the adaptability and metabolic strategies of sheep to dissipate heat, the animals were able to maintain body temperature within the normal range for ruminants. It is concluded that the experimental diets did not cause damages to the physiological parameters, and the climatic conditions are responsible for increasing the physiological variables.
Parâmetros ruminais de ovinos e caprinos alimentados com silagem da mucilagem do desfibramento de sisal
(2022-05-31) Miranda, Lucas Ramos de; Guim, Adriana; Soares, Luciana Felizardo Pereira; http://lattes.cnpq.br/4071178363761831; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/8413413377006449
The following study aimed to evaluate the rumen parameters of sheep and goats submitted to diets based on sisal shredded mucilage (MUDS) ensiled with and without additives, recording the pH values, quantifying the concentrations of ammoniacal nitrogen in the rumen of animals, in addition to tests to analyze the rumen fluid, measuring the reductive activity of the rumen flora (methylene blue reduction test, PRAM) and the sedimentation time at different times (0, 2, 4, 6, 8 10 hours) after the morning feeding. The experimental diets were: a) Control (60% Tifton 85 hay (Cynodon dactylon, L.) and 40% concentrate); b) MUDS silage (SilMUDS) without additive (45% SilMUDS, 15% Tifton 85 hay and 40% concentrate); c) MUDS silage added with ground corn (SilMUDS-MI) - 45% SilMUDS-MI, 15% Tifton 85 hay and 40% concentrate; and d) MUDS silage with wheat bran (SilMUDS-TRI)) – 45% SilMUDS-TRI, 15% Tifton 85 hay and 40% concentrate. The proportions of additive in the silages were 75% of the MUDS and 25% of the additive. Four sheep and four male goats, castrated and cannulated in the rumen, with initial mean body weights (BW) of 71.05 ± 7.53kg and 57.41 ± 9.71kg, respectively, distributed in a Latin square design were used. Ruminal parameters were influenced with the use of silages; pH and ammonia nitrogen showed greater variation (P<0.05) for the effect of treatments and collection time after the first feeding, resulting in ideal levels according to the literature for N-NH3 present in the rumen. Low levels of pH were obtained in all treatments and collection hours, evidencing the treatment of SilMUDS-MI which resulted in the lowest level (5.97); The sedimentation test showed a significant effect (P<0.05) for the hours of collection, with its sedimentation time decreasing as the hours of analysis passed; the analysis of PRAM (Methylene Blue Reducing Test) showed a high reductive effect (P<0.05) observing the collection times, due to the high level of carbohydrate degradation present in the rumen and how acidic the rumen fluid was. The SilMUDS with additives or not provides good levels of ammonium nitrogen considering normal ruminal parameters. SilMUDS, with or without
Relatório de Estágio Supervisionado Obrigatório
(2022-10-25) Silva, Maria Carolina da; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/4955787788560443
Relatório de Estágio Supervisionado Obrigatório
(2019-07-11) Silva, Erick Alexandre Magalhães; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/2162720356705857
Relatório de Estágio Supervisionado Obrigatório
(2019-12-09) Silva Neto, José Francisco da; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/5375824647061219
Relatório de Estágio Supervisionado Obrigatório
(2019-06-18) Lima, Ana Carolina Costa Pinto; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/1568605868923865
Respostas fisiológicas de ovinos alimentados com palma forrageira
(2019-06-18) Silva Neto, José Francisco da; Guim, Adriana; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/5375824647061219
The aim of study was to evaluate the effect of forage palm based diets on the physiological indicators of sheep, as well as, to analyze the correlation of these parameters with total digestible nutrients consumption. For this, the experimental protocol was approved by CEUA/UFRPE, under the license of 053/2015, using 36 lambs, with an average age of six months and initial body weight of 23.0 ± 3.11 kg, distributed in a design completely randomized, with three treatments and 12 repetitions. The experimental period comprised 86 days, with a base diet (Tifton hay, maize corn, soybean meal, urea, and mineral salt) and diets in which Tifton hay was partially replaced by forage palm (either Nopalea Cochenillifera Salm Dyck or Opuntia stricta Haw). The diets were given twice a day in the form of complete feed. In order to evaluate the physiological parameters, respiratory frequency (RF), heart rate (HR), rectal temperature (RT) and body temperature (BT) were measured. These data were collected on the 50th and 55th experimental days at 8:00 am and 3:00 p.m. Also, the air temperature and air moisture were measured during the experiment. The obtained data were submitted to analysis of variance and average grade comparison by Tukey test and Pearson correlation analysis between variables. No interaction has been noticed between the diet and the shift, nor was there a dietary effect on the evaluated variables. However, RF and BT were higher in the morning in comparison to the afternoon shift. All the values recorded for HR and RF were above normal for the species. It was verified that the variables RF and BT correlated positively and significantly with the intake of total digestible nutrients in the animals that received the control diet in both shifts. It is concluded that the experimental diets did not cause damages to the physiological parameters, and the climatic conditions are responsible for increasing the physiological variables.
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/1568605868923865
The 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.