Zootecnia (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/28
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Item 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/8413413377006449The 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 withoutItem Substituição da silagem do resíduo da cultura do abacaxi por palma forrageira na dieta para ovinos(2021-02-25) Damas, Luciana Pereira; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/1935877952205692The objective was to evaluate the partial replacement of the pineapple cultural residue silage (SRCAB) by forage palm (0; 29.2; 58.4 and 87.6%), in addition to a control diet with sorghum silage as exclusive roughage, diet for sheep on consumption, apparent digestibility, ingestive behavior. Five crossbred male sheep with an average body weight of 40 kg were used, distributed in a 5 x 5 Latin square, with five animals, five treatments and five experimental periods. The consumption of DM and MO were higher for the levels: 0; 29.2; 58.4; 87.6% substitution in relation to the control diet. Regarding the consumption of CP, at the replacement levels 0, 29.2 and 58.4% it was higher than the control. There was less consumption of NDF for the levels 58.4 and 87.6% in relation to the control diet, for the other levels the consumption was similar. For all substitution levels, the consumption of CNF was higher, compared to the control diet. The consumption of MS, MO, PB, FDN, CNF and NDT decreased linearly due to the replacement of SRCAB by forage palm. The digestibility of DM in relation to the control diet showed to be higher in all levels of substitution by palm, however, in relation to the digestibility of CP only in the substitution levels of 58.4 and 87.6% was higher than the control diet. As for the replacement levels, there was no change in the digestibility of nutrients. The feeding time was similar between all levels of substitution in relation to the control treatment, however the time spent with leisure was longer and the time of rumination less responses were observed, respectively; to the levels of 29.2; 58.4 and 87.6% of inclusion, respectively; due to the replacement of SRCAB by forage palm. SRCAB showed better nutritional value than the silage of the forage sorghum variety BRS Ponta Negra. The inclusion of forage palm to replace the silage of pineapple crop remains is not recommended, mainly because it reduces energy consumption.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 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.