TCC - Zootecnia (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/478
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Resultados da Pesquisa
Item Utilização da farinha integral de mosca-soldado-negra (Hermetia illucens, L., Diptera: Stratiomyidae) para suplementação de abelhas uruçu (Melipona scutellaris)(2024-02-27) Guedes, Marcelo Vasconcelos de Azevedo; Nascimento, Júlio Cézar dos Santos; http://lattes.cnpq.br/4343017315156292; http://lattes.cnpq.br/5243280023942732The main objective of this study was to evaluate the growth of hives of the species Uruçu Nordestina (Mellipona scutellaris) through their gross weight when using whole black soldier fly larva flour (Hermetia illucens) in their supplementary feeding during the period of 43 days with weekly weighings. This work combines the sustainable proposal with what is already concretely known in the literature regarding the use of black soldier fly insect flour, through a high concentration of crude protein (CP) and other nutrients (lipids, 18%, and protein content gross, varying between 42% and 75%,) applied in the supplementation of Uruçu Nordestina (M. scutellaris). The aim is to mitigate the impact of the decline in its beekeeping pasture in dry seasons, negatively influenced by the scarcity of its native flora, of which only 12.4% of the original remains. The experiment was carried out with 9 colonies arranged in northeastern boxes and subjected to 3 treatments (T1, T2, T3) with increasing levels of BSF protein, in the proportion of (14%, 28% and 42%) respectively. The Supplement was composed of corn bran, Apis mellifera honey (50%) and whole wheat flour (BSF) (50%), supplied “in natura” in a homogeneous and pasty mass; weighing (30g) each treatment. There was an increase in the consumption of diets and the weight of colonies supplemented with wholemeal BSF flour in the weekly collection of experimental data.; gradually. However, there was no statistical difference between treatments) in the weight analysis (p=0.4415) and in the consumption analysis (p=0.1115), upon completion of the data.Item Influência do nível proteico das rações sob o desempenho zootécnico de Macrobrachium rosenbergii submetido a diferentes sistemas de cultivo(2019-12-05) Abreu, Katariny Lima de; Porto Neto, Fernando de Figueiredo; http://lattes.cnpq.br/1475750525654086; http://lattes.cnpq.br/2239792686447463Freshwater shrimp farming is a lucrative way to produce crustaceans. As the main species of freshwater shrimp farmed for commercial fins are Macrobrachium nipponense and Macrobrachium rosenbergii, due to their growing production or success in cultivating these animals is directly linked to the type of system to which they are being used. Thus, some alternative systems have emerged in order to minimize damage to the environment and increase the stocking density of animals, among them the biofloc cultivation (BFT - Biofloc Technology). Given the above, the objective was to evaluate the productive and zootechnical performance of Macrobrachium rosenbergii fed different levels of crude protein in autotrophic system and bioflocks during the nursery phase. The experiment obtained a completely randomized experimental design with a 2x2 factorial arrangement, the first factor being the different culture systems, clear water (AC) and bioflocks (BFT), and the second the protein levels of the diet (35 and 40%). Thus, obtaining the AC35, AC40, BFT35 and BFT40 treatments, with four replications for each treatment, the experiment lasted 80 days. The food offered to the animals was composed of commercial pelleted feed with 35% and 40% crude protein levels, offered three times a day. For water quality monitoring, temperature, dissolved oxygen and pH were measured twice a day (08: 00h and 16: 00h) with the aid of a multiparameter and ammonia, nitrite, nitrate, orthophosphate and sedimentable solids were measured weekly. The zootechnical performance of the shrimps was analyzed by weekly biometrics, where the parameters were measured as: final average weight, weight gain, feed conversion factor, final biomass and mortality. Data were analyzed using two-way variance (ANOVA) followed by the Tukey means comparison test at 5% probability using ASSISTAT version 7.6 software. The water quality variables of the different cultivation system (Biofloco and Água clear) were within the recommended levels for the optimal cultivation of the species. There was no significant effect on final average weight (FW), weight gain (WG) and specific growth rate (TBI); however, there was a significant difference (p <0.05) in relation to crude protein in the conversion factor. (FCA), survival (S) and final biomass (BF). Thus, it is concluded that the use of biofloc cultivation system allows the reduction of crude protein concentrations of the offered diet, without causing damage to the zootechnical performance variables of shrimp Macrobrachium rosenbergii, and may reduce the operating costs of the production system.Item Retenção de nitrogênio em ovinos alimentados com concentrações oscilantes de proteína bruta na dieta(2019-06-19) Santos, Caio Cesar Carneiro dos; Monnerat, João Paulo Ismério dos Santos; http://lattes.cnpq.br/3851426263880079; http://lattes.cnpq.br/5344836037229833The objective of this study was to evaluate the intake, digestibility and impact of the daily oscillation of protein protein concentrations in sheep on the plasma content of N-ureic, aminotransferases, and serum sheep proteins, testing the hypothesis that the higher nitrogen retention ruminants submitted to diets with oscillating concentrations of crude protein (CP) may be attributed to increased urea recycling during the period when diets are low in CP. For the experiment, four uncastrated sheep, with a mean of 20 kg of live weight, were distributed in a 4X4 Latin square design. The experimental treatments were: No protein restriction (Control); restriction every 24 hours (T-24); restriction every 48 hours (T-48); and with restriction (TRestri). No significant effect (p> 0.005) was observed between the experimental treatments for the consumption variables: MS, MO, NDT, EE, NDF, CNF. However, for the CP consumption, the Control, T-24 and T-48 treatments did not provide a significant difference in consumption, however, the animals submitted to the T-Restri treatment showed differences in the other treatments, with lower CP consumption. As for the digestibility, the T-48 treatment (75.23) was superior to the Control (74.07) and T-Restri (70.44) diets, while the T-24 diet was intermediate between Control and T -48. The T-Restri treatment had lower digestibility than the others, resulting from the lower CP intake found for this treatment. For Nitrogen consumption, there was no significant difference between Control, T-24 and T48 treatments. However, for Nitrogen in the urine, greater excretion was observed for the animals of the T-48 treatment, whereas the Control was intermediate between T-24 and T-48. There was no significant effect among treatments for nitrogen in the faeces. For the variables of N-ureic, minotransferases and serum proteins , there was no significant effect (p> 0.005) among experimental treatments. It is concluded with this work that the oscillating supply of crude protein does not influence the retention of nitrogen, demonstrating a retention pattern similar to the daily supply that meets the protein requirement in its totality.