Navegando por Autor "Zeferino, Cynthia Pieri"

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Avaliação dos níveis de cálcio e fósforo presentes em dietas BARF e Prey model para cães adultos e em crescimento
(Universidade Brasil, 2023) Moura, Angélica Kischener de; Zeferino, Cynthia Pieri; Soares, Vando Edésio
The change in the consumer profile of pet owners and the increased concern with the ingredients present in the commercial complete diets has led to more owners opting to offer homemade diets, based on diet recommendations found on websites. Among the homemade diets’ varieties, raw diets are gaining more supporters in Brazil, with emphasis on BARF (biologically aproppriate raw food), which consists of raw meats with or without bones, offal and a small percentage of vegetables, fruits, and seeds, and also prey model, which does not include any vegetables, only meats with or without bones and offal. .The objective of this study was to evaluate the composition of calcium and phosphorus in homemade raw diets in the BARF and prey model modalities and compare them with the recommendations of the European Pet Food Industry Federation (FEDIAF, 2021), in addition to evaluating the relationships between these two nutrients. Thirty homemade raw diets were evaluated, 20 in the BARF category (10 for adult and 10 for growing dogs) and 10 in the prey model category (all for both adults and growth). To compose the diets, the instructions described on websites in English were followed to determine the percentage of ingredients for each physiological phase. Bromatological analyzes were carried out on the nine ingredients of animal origin that contained bones (whole quail, whole rabbit, chicken foot, chicken head, chicken neck, chicken thigh, chicken drumstick, chicken back and chicken wing) to obtain calcium and phosphorus levels. The nutritional composition of foods was estimated using software. Of the 30 formulations evaluated, none reached the minimum values for calcium, phosphorus and Ca/P ratio recommended by FEDIAF, (2021), with calcium being the nutrient with the highest incidence of values below the recommendation. The results highlight the presence of nutritional inconsistencies in the recommendations for raw diets with bones in the BARF and prey model modalities on the websites and reinforce the need for care when formulating a homemade raw food for dogs in different physiological phases.
Boletim Técnico da Produção Animal, 51 / Universidade Brasil : modelo de gestão para intensificação da cadeia produtiva na pecuária brasileira.
(Universidade Brasil, 2019) Silva Filho, Emílio Afonso da; Fiumaro, José Eduardo Covas; Zeferino, Cynthia Pieri; Pereira, Luiz Arthur Malta; Brennecke, Käthery
Boletim Técnico da Produção Animal, 32 / Universidade Brasil : montagem de sensor de temperatura e umidade para manutenção do conforto ambiental em granja cunícola
(Universidade Brasil, 2018) Pereira, Luiz Arthur Malta; Zeferino, Cynthia Pieri; Machado, Luiz Carlos; Brennecke, Käthery
Boletim Técnico da Produção Animal, 44 / Universidade Brasil : guia para análise econômica de empreendimentos suinícolas
(Universidade Brasil, 2019) Evangelista, Mariane Zabotto; Zeferino, Cynthia Pieri; Germek, Luciana
Comportamento de garanhões durante a coleta de sêmen pré e pós-suplementação com compostos naturais e antioxidante
(Universidade Brasil, 2022) Macedo, Joyce Augusto; Zeferino, Cynthia Pieri; Orlandi, Cássia Maria Barroso
The stallion performance and semen processing out of the breeding season period is essential for optimizing reproductive service and management. The study described the reproductive behavior of stallions during semen collection pre and post-supplementation with natural compounds and antioxidants. Four adult Quarter Horse stallions weighing between 416 and 505 kg and active sexual maturity (6 to 24 years) were used during the routine of semen collection in a breeding center. The experiment performed in a commercial stud farm, located in the city of Araraquara, SP. The pre and post-supplementation period consisted of eight successive semen collections, with an interval of 48 hours. Between the initial and final period (75 days), the animals received 6 kg/day of commercial pelleted feed, with supplementation (45 g of the product/day) based on L-carnitine (334g/kg), beta carotene (44, 5 g/kg), folic acid (1200 mg/kg), vitamin C (22.3 g/kg) and vitamin E (27800 IU/kg), water and mineral salt ad libitum. The behavioral repertoire (interval and number) was registered by evaluating the videos recorded during the collection, considering variables since hygiene management, mounting, semen collection and completion of the procedure. The study used an “Quasi- Experimental Design” and stallion behavior pre and post supplementation was compared. The behavior repertoire data was evaluated by comparing treatment in different moments and the variable means were submitted to non-parametric Kruskal-Wallis test, at the level of 5% (P<0.05) of probability. The individual responses of each stallion revealed changes in the post-supplementation period considering the behavior repertory during semen collection, which are related to reproductive performance and they could be influenced by conditioning and supplementation.
Desenvolvimento de mensurador de granulometria em fábricas de rações para suínos
(Universidade Brasil, 2021) Evangelista, Mariane Zabotto; Zeferino, Cynthia Pieri
The objective was to develop an unprecedented particle size measurer for swine feed factory. This is because there are difficulties to get an ideal granulometry in the feed production, due absence practical technologies available inside market. The prototype was made of hardware parts (stand to collect ground grains sample, digital microscope, lighting ring, white leds, pneumatic cylinder, air compressor, microscope tube, potentiometer, solenoid valve, sphincter set and set of fasteners) and software parts (programation development with environment PyCharm Community®, version 2020.3, and the libraries Scipy®, Matplotlib®, Datetime®, Numpy®, Time®, Imutils® e Open CV®). The average geometric diameter was calculated for 02 treatments: T1 (sendding samples of 160 g ground grains to laboratory) and T2 (removal of 500 g ground grains to calculate with the prototype). LPV, IRR and simple and discounted payback was canculated for economic viability. In T1, the mean AGD found was 828,56 μm and marjority number of grains was at 500 μm gap. In T2, the mean average geometric diameter found was between 831,8 ± 124,6 μm e 1258,1 ± 445,1 μm, being these variations no significance (p≥0,05). These results suggests that measurer develop provides AGD values identification with more detailment, because it made individual read for each grain, don’t considering weight critery, what is approached in T1. LPV and IRR were positive (R$ 8.570.902,71 and 387,34%, respectively) and the simple and discount payback’s were less than 1 month. Thus, as the product doesn’t give a simple AGD average, like what is made in laboratorial methodology by density, the measurer has more details to calculation method. Moreover, the economic viability was positive, being low cost and with easy buy by farmers, commercial feed factory or machines industry.
Desenvolvimento de mensurador de granulometria em fábricas de rações para suínos
(Universidade Brasil, 2021) Evangelista, Mariane Zabotto; Zeferino, Cynthia Pieri
The objective was to develop an unprecedented particle size measurer for swine feed factory. This is because there are difficulties to get an ideal granulometry in the feed production, due absence practical technologies available inside market. The prototype was made of hardware parts (stand to collect ground grains sample, digital microscope, lighting ring, white leds, pneumatic cylinder, air compressor, microscope tube, potentiometer, solenoid valve, sphincter set and set of fasteners) and software parts (programation development with environment PyCharm Community®, version 2020.3, and the libraries Scipy®, Matplotlib®, Datetime®, Numpy®, Time®, Imutils® e Open CV®). The average geometric diameter was calculated for 02 treatments: T1 (sendding samples of 160 g ground grains to laboratory) and T2 (removal of 500 g ground grains to calculate with the prototype). LPV, IRR and simple and discounted payback was canculated for economic viability. In T1, the mean AGD found was 828,56 μm and marjority number of grains was at 500 μm gap. In T2, the mean average geometric diameter found was between 831,8 ± 124,6 μm e 1258,1 ± 445,1 μm, being these variations no significance (p≥0,05). These results suggests that measurer develop provides AGD values identification with more detailment, because it made individual read for each grain, don’t considering weight critery, what is approached in T1. LPV and IRR were positive (R$ 8.570.902,71 and 387,34%, respectively) and the simple and discount payback’s were less than 1 month. Thus, as the product doesn’t give a simple AGD average, like what is made in laboratorial methodology by density, the measurer has more details to calculation method. Moreover, the economic viability was positive, being low cost and with easy buy by farmers, commercial feed factory or machines industry.
Desenvolvimento de plataforma colaborativa on-line com função bilíngue (inglês vs. português) de terminologias técnicas na área de produção animal
(Universidade Brasil, 2018) Ferrari, Maria Helena; Pereira, Luiz Arthur Malta; Zeferino, Cynthia Pieri
Desenvolvimento de plataforma tecnológica de apoio à gestão da pecuária, direcionada à bovinocultura
(Universidade Brasil, 2022) Silva Filho, Emílio Afonso da; Zeferino, Cynthia Pieri; Pereira, Luiz Arthur Malta
Livestock stands out as one of the main economic activities in Brazil, especially in the North region, which has a significant part of the production of animal protein. However, in many of these areas, due to the lack of research, or even the geographical difficulty of access by the professional, the profile of these properties is not known. Tracing the profile, mainly of those located in regions of difficult access, is fundamental for the optimization, in order to guarantee satisfactory production levels in livestock. This work proposes the development of a technological platform that provides, in a free, fast, easy and practical way, the exchange of information between rural producers and agribusiness professionals for the collection and management of data from the production system. The research consisted of four phases. Phase I corresponded to the survey, via internet, of the technological tools (software and applications) aimed at managing livestock production. Phase II was carried out through the search, grouping and organization of the information necessary for the development of the platform based on the forms and spreadsheets available. Phase III corresponded to the choice of programming language. All the developed programming was stored on an outsourced web server (http://www.pmppa.com.br/apoio/) and can be accessed by computer and cell phone. Phase IV consisted of including questions to feed the platform and carrying out the validation test by the company “AMAZONVET AGRONEGÓCIOS. The product has a computer program registration certificate by the INPI (National Institute of Industrial Property, BR 512020002806-3). The platform is divided into four profiles: home, login, answering survey and administrator. The "Technological Platform for Supporting Livestock Management" guarantees the professional support for the diagnosis, planning and monitoring of technical management in agricultural and livestock management, in addition to administrative and financial management on the property and with the producer, in order to, in this way, to enable increases in production and productivity, in order to guarantee greater economic-financial income for rural properties.
Desenvolvimento de protótipo eletrônico para manejo de cortina, ventilador e nebulizador em instalações para suínos
(Universidade Brasil, 2024) Faria, Ricardo de Souza; Zeferino, Cynthia Pieri; Pereira, Luiz Arthur Malta
The climate has a significant impact on swine production, being a decisive factor in achieving productivity and, consequently, the success of the activity. Environmental factors must be monitored to maintain favorable conditions; thus, it is necessary to develop accessible technologies to measure the microclimate of swine farms. The study aimed to develop a low-cost electronic prototype to assist in maintaining thermal comfort in small and medium-sized swine facilities. The prototype was developed using the Arduino Mega platform and combines the measurement of environmental variables (air temperature, relative humidity and black globe temperature) to calculate the dew point and ambience indices (Temperature and Humidity Index; THI and Black globe-humidity index; BGHI). The equipment classifies thermal stress and, through programming, indicates the decisions to be made regarding the activation of curtains, fans and nebulizers. The total cost to manufacture a sample was US$ 97.80 (in US dollars). The laboratory tests were conducted under three different conditions and their results confirmed the functionality, thus validating the prototype. In the indoor environment, in the shade, the stress was moderate and the management measures proposed by the prototype were the complete opening of the curtains, with fans on. In the outdoor environment, in the sun, the stress was severe and the measures proposed were the complete opening of the curtains, with fans and nebulizers on. In the outdoor environment at night, there was no heat stress, therefore, no type of management was proposed. In conclusion, the developed and validated prototype is configured as an efficient and low-cost technological tool to assist in maintaining thermal comfort in swine facilities, both for subsistence and on a commercial scale for small and medium-sized producers.
Implantação de plataforma informatizada para gerenciamento da inspeção e análise laboratorial de produtos de origem animal do exército brasileiro
(Universidade Brasil, 2022) Nunes, Christiany de Oliveira; Zeferino, Cynthia Pieri; Pereira, Luiz Arthur Malta
The Brazilian Army's Food Inspection and Bromatology Laboratories (LIAB) conduct the quality control of all foodstuffs purchased. These laboratories are found in 18 units distributed in Brazil and are headed by veterinarians. Currently, there is a great demand for inspection and analysis of food items, especially those of animal origin, by the Brazilian Army's Food Inspection and Bromatology Laboratories (LIAB). However, there is no software or application available that facilitates the professionals' work in relation to the more efficient management of this considerable volume of produced data. The work proposed the construction of a low-cost software that allows, in a simple, fast and practical way, the access, control and preservation of all data related to the inspection and laboratory analysis of articles of animal origin, with the purpose of improve LIAB's quality control. All the programming developed was stored on an outsourced web server and can be accessed by software (tablets, desktops and notebooks) and application (smartphone), through the link: . The free and easily accessible platform was effectively built. The production of the product represents an unprecedented tool, to, in this way, assist the laboratory routine of veterinary medical officers, in order to improve the quality control of food purchased for consumption by the OM of the 12th Military Region supplied by the 12th B Sup, in particular, from the Brazilian Army's Laboratory of Food Inspection and Bromatology.
Meta-análise dos efeitos da inclusão de fontes de mandioca na alimentação de frangos de corte sobre o desempenho
(Universidade Brasil, 2021) Matte, Wanessa Daróz; Zeferino, Cynthia Pieri
Broiler production costs have increased in recent years. Given that this cost is mainly linked to food, research on alternative ingredients to replace corn and soybean meal becomes fundamental. Cassava (Manihot esculenta crantz) stands out for being a plant present in human consumption and that during industrial processing it generates by-products with high potential for the composition of poultry feed. Studies on various sources of cassava by-products in the feed of broiler chickens are available in the literature, however, there is a lack of information on the standardization of by-products, as well as the level of replacement of cassava in relation to the energy source of the diet and its effects on performance. By meta-analytic approach, the objective was to evaluate the effect of replacing corn in the diet with cassava by-products (bagasse, flour and pulp) on the performance of confined and free-range broilers. Eighteen studies were analyzed, 14 about confined chickens and four about free-range chickens, totaling 117 treatment means. The effects were evaluated by the raw mean difference (RMD), with a p-value < 0.05. According to the performance results of confined broilers, the inclusion of cassava by-product sources in the feed reduced body weight gain. For feed intake there was no effect, however, there was a worsening of feed conversion. These data showed a high heterogeneity value (greater than 50%), which indicates interference in their responses not only from the inclusion of cassava, but from other factors, such as the source of cassava by-product, in addition to the level and period of inclusion. Thus, to explore heterogeneity, each source was classified according to levels. There was a reduction in the weight gain of confined chickens for all sources. As for the consumption of feed, there was a reduction in birds fed with the cassava bagasse source. Cassava flour resulted in worsening of feed conversion. When evaluating the inclusion of cassava by period, above 21 days of age, there was no statistical difference for the performance of the confined birds. According to the performance results for free-range broilers, the inclusion of cassava by-products, in general, increased feed intake and worsened feed conversion. However, despite the high heterogeneity, it was not possible to evaluate the sources, in addition to the levels and periods of inclusion of these by-products, separately, due to the small number of studies available in the literature. In conclusion, it is recommended the cassava pulp up to 15% in the diet of confined broilers, above 21 days of age, without affecting performance. In addition, it is important to develop studies about the cost-benefit analysis of cassava by-products as poultry feed.
Parâmetros hematológicos e bioquímicos de coelhos suplementados com probióticos na dieta
(Universidade Brasil) Zeferino, Cynthia Pieri; Lima, Natália Karollaine de; Artoni, Ana Júlia; Rodrigues, Paula Gomes; Brennecke, Käthery; Ferraz, Luriany Pompeo; Magno, Mara Paula; Soares, Vando Edésio