Navegando por Autor "Ferreira, Marcelo de Andrade"

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Determinação do teor de NDT do farelo de palma orelha de elefante mexicana (Opuntia stricta (Haw.) Haw)
(2025-02-24) Santos, Thayane Vitória Monteiro; Ferreira, Marcelo de Andrade; Siqueira, Michelle Christina Bernardo de; http://lattes.cnpq.br/6424600366994159; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/4646225015556265
A estacionalidade da produção vegetal na região Semiárida do Nordeste afeta a disponibilidade de forragem, e consequentemente, a produção animal. Diante deste cenário, inúmeros trabalhos foram realizados para identificar alimentos alternativos mais disponíveis e adaptados a esta região, tendo como destaque a palma forrageira, alimento que apresenta elevado teor de energia e supre grande parte das necessidades hídricas dos animais. Por apresentar alto teor de energia, estudos vêm sendo realizados com o objetivo de validar o uso da palma na forma de farelo, como alternativa às fontes tradicionais de concentrados energéticos. No entanto, na literatura não foram observados trabalhos determinando o teor de NDT do farelo de palma forrageira, medida fundamental para avaliar a energia disponível na dieta de ruminantes. Objetivou-se determinar, em um ensaio com ovinos, o teor de NDT do farelo de palma forrageira Orelha de Elefante Mexicana, assim como o consumo e digestibilidade dos nutrientes e comportamento ingestivo. Foram utilizados oito ovinos da raça Santa Inês, com peso corporal médio de 20,3 kg, distribuídos em um delineamento experimental inteiramente casualizado, com duas proporções do farelo de palma (19% e 44,4%). O tratamento com maior proporção do farelo proporcionou maior consumo de matéria seca, matéria orgânica, proteína bruta, carboidratos totais e nutrientes digestíveis totais. Não houve efeito da proporção do farelo sobre a digestibilidade de matéria seca, matéria orgânica, proteína bruta e carboidratos totais. Os tempos destinados a alimentação, ruminação e ócio, assim como as eficiências de alimentação e ruminação, não foram influenciados pelos níveis de inclusão do farelo de palma. O NDT do farelo de palma forrageira foi de 59,51%.
Efeito da associação do gérmen de milho e palma forrageira Orelha de Elefante Mexicana (Opuntia stricta [Haw], Haw]) sobre o consumo de matéria seca, comportamento ingestivo e consumo de água
(2024-02-27) Pimentel, Rennan de Santana; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/8536541391634505
The aim of this study was to evaluate the effects of the association of whole extra-fat corn germ (GIMEX) on dry matter intake, water consumption and ingestive behavior of goats and sheep. Four male sheep and four male goats were used, castrated, fistulated and cannulated in the rumen, with an average body weight of 38 kg and kept in a confinement system in individual stalls (2.0m x 1.0m), the stalls had slatted floors and were equipped with feeders and drinkers. The treatments consisted of: (T1) Tifton grass hay + concentrate without GIMEX, (T2) Tifton grass hay + concentrate with GIMEX, (T3) Tifton grass hay + forage palm + concentrate without GIMEX, (T4) Tifton grass hay + forage palm + concentrate with GIMEX. The experimental design was a 4x4 Latin square, with 4 animals, 4 treatments and 4 periods of 22 days each. The effects of treatment, species and treatment x species interaction were evaluated. The results obtained for the characteristics discussed in the study were significant (P <0.05), only for the effect of the influence of treatments. Dry matter intake, in kg/day, was lower in the CONT and GIMEX treatments, where forage palm was not present in the diet; consequently, the POEM and POEM + GIMEX treatments had higher dry matter consumption due to the influence of palm. With regard to water consumption, it was observed that the animals exposed to diets containing forage palm reduced their voluntary water intake via the drinking fountain. There was no influence of the species effect or the species x treatment interaction on any of the items evaluated (P>0.05). The time spent feeding and ruminating was shorter for diets containing cactus (POEM and POEM + GIMEX). There was no influence of the species effect and the species x treatment interaction on any of the items evaluated (P>0.05). POEM, replacing hay, increases dry matter intake and reduces water intake in addition to the time spent on feeding and rumination activities.
Efeito da dieta basal sobre o desempenho de cabras em lactação
(2023-09-11) Souza, Margot Santos de; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/4617261628043561
Goat farming has increasing in Brazil, especially in the Northeast region, which is responsible for 32% of the country's total production. Due to the edaphoclimatic conditions of this region some studies are carried out trying to improve the performance of those animals. Therefore, the present study intented to evaluate the effect of different sources of fiber (corn silage, sorghum silage, pangolon hay or sugarcane bagasse) associated with cactus pear in diets for Saanen goats in lactation process on nutrient intake and digestibility, ingestive behavior, milk production and composition. The experiment was carried out at the Experimental Station of the Pernambuco Agronomic Institute (IPA) in Sertânia (Pernambuco). Twelve multiparous and lactating goats were used in this experiment with an average weight of 48.9 kg, average initial production of 2.8 kg of milk/day and lactation period of 80 days. The goats were weighed, identified and distributed according to their productivity in three simultaneous Latin squares (4 x 4), containing four animals, four treatments and four experimental periods. The 4 experimental period LASTED 21 days each, with the initial 14 days for adaptation of the animals, and others for data and sample collection (food, leftovers, feces and milk). The diets were offered ad libitum as a complete mixture, three times a day, allowing 5 to 10% of the total dry matter supplied. The goats were manually milked twice a day. For the ingestive behavior, the activity that the goat is performing (feeding, rumination or idleness) were observed every 10 minutes for 24 hours. Statistical analyzes were performed using a PROC MIXED package from SAS (2014). Intake of dry matter (2.58kg/day) and organic matter (2.30kg/day), crude protein (0.385 kg/day), ether extract (0.170 kg/day), neutral detergent fiber (0.895 kg/day), non-fiber carbohydrates (0.858 kg/day) and metabolizable energy (5.66 Mcal/day) did not differ between fiber sources that made up the basal diet (P>0.05). Fiber sources did not influence the digestibility of dry matter and nutrients (P>0.05). The association of cactus pear with silages, hay and sugarcane bagasse did not alter milk production without correction, corrected for 3.5% of fat and corrected for energy (2.78; 2.53 and 2. 55 kg/day, respectively), in addition to the composition of the milk (P>0.05). The diets did not cause changes in any of the items evaluated in the ingestive behavior (P>0.05). It is recommended that any of the fiber sources be purchased along with cactus pear in the basal diet of lactating goats.
Palma forrageira, o alimento mais importante para vacas leiteiras no semiárido pernambucano: manual prático
(2022-10-06) Souza, José Felipe Borges de; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/4011173965144301
The dairy basin of Pernambuco is distributed throughout its territory, however with a larger concentration in the Agreste region. Evaluations of production systems in this region indicate that milk production becomes efficient over the years, can improve several aspects, among them one of the most important would be the increase in land productivity. This would only be possible, mainly due to the size of the properties, with the implementation of forages with high productivity. In this context, forage palm became a key strategic forage due to its production potential and nutritional value. The objective was to develop a practical manual for the use of forage palm in the diet of dairy cows and to offer the field technician and the producer a material with options to associate it with a range of ingredients normally used in the most practical way possible. From there, 48 diets were formulated, based on forage palm, for cows with different weights (400, 450, 500, 550, and 600 kg) also different milk yields (10, 15, 20, 25, and 30 kg of milk/day). Data were presented on a dry matter basis. It is expected that the material produced can reach the hands of technicians and producers to guide them in choosing the best options according to the characteristics of the production system, availability, and price of ingredients.
Proposta de um sistema de produção de leite com dietas à base de palma forrageira
(2023-09-11) Melo, Gabriela Correia da Silva; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736
Agreste de Pernambuco is home to the state's main dairy basin, accounting for approximately 75% of production. Due to the edaphoclimatic characteristics of the region (Semi-arid), characterized by low rainfall and high temperatures, challenges related to forage production must be faced in order to sustain dairy production systems in the region. Thus, the implementation of high-yielding roughage can be achieved through appropriate agricultural practices, the use of technologies, the selection of varieties adapted to the region's climate and the adoption of good management practices. In this way, fodder palm has been a valuable option for livestock farming in the Agreste region of Pernambuco, contributing to animal food security during periods of drought and offering a sustainable alternative for feeding livestock in the semi-arid region. The aim was to develop a milk production system with palm-based diets, based on the identification in the literature of the main reference indicators to be improved in order to increase the sustainability of dairy farming in Pernambuco. After identifying them and based on zootechnical indices considered achievable, a stabilized herd was idealized and diets based on fodder palm were calculated to meet the needs of this herd. Subsequently, the reference indices were recalculated and showed a significant improvement, indicating that palm can be an extremely important strategy for daisy fanning in the state.
Relatório de Estágio Obrigatório Supervisionado: Fazenda Experimental Agroceres Multimix
(2024-03-04) Ferreira, Danielly Alessandra Botelho de Almeida; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/9455481764669747
Relatório de Estágio Supervisionado Obrigatório
(2021-07-07) Souza, Felipe Gusmão de; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/8726088889461065
Relatório de Estágio Supervisionado Obrigatório
(2021-07-08) Andrade, Milena Oliveira de; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/7490394190634816
Relatório de Estágio Supervisionado Obrigatório - Rancho Alta Tensão
(2025-02-14) Freitas Filho, José Gildo Rufino de; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/5455362057251028
Relatório de Estágio Supervisionado Obrigatório: Embrapa Gado de Leite
(2024-10-02) Rabelo, Milena Nóbrega; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/4870894593443363
Relatório do Estágio Supervisionado Obrigatório
(2019-07-19) Albuquerque, João Gustavo Souza Sales de; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/5380606780632806
Relatório final de atividades do Estágio Supervisionado Obrigatório: manejo de vacas em lactação no Rancho Alta Tensão
(2025-03-10) Silva, Gleyce Kelly de França; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/8532351925608551
O Estágio Obrigatório Supervisionado foi realizado no Rancho Alta Tensão, situado no bairro de Vera Cruz, Camaragibe, Pernambuco. Com uma duração de 42 dias, de 18 de novembro de 2024 a 21 de janeiro de 2025, e totalizando 330 horas, o estágio foi orientado pelo professor Marcelo de Andrade Ferreira e supervisionado pelo médico veterinário Francisco da Silva Alves Pinheiro Neto. Durante o estágio, foram desenvolvidas atividades como acompanhamento do manejo de vacas em lactação: preparação de dietas, ordenha, grupos de alimentação e controle leiteiro. O foco principal do relatório foi comparar a estrutura atual do rebanho, composição da dieta, formação dos grupos de alimentação, manejo de ordenha e controle leiteiro com aquilo que a literatura a respeito do assunto preconiza e propor mudanças nos pontos que não estiverem contribuindo para maximização dos recursos e melhoria dos índices produtivos e reprodutivos. O Estágio Obrigatório Supervisionado proporcionou um aprendizado prático valioso ao integrar os conhecimentos teóricos adquiridos com a experiência prática no campo.
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/1935877952205692
The 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.
Substituição do milho moído por gérmen integral de milho extra gordo em dietas para ovino
(2021-02-02) Matos, Yasmin Caroline da Silva; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/4404627710797961
The objective was to evaluate the effects of the inclusion of whole wheat germ in extra fat to replace ground corn in the sheep diet. Five crossbred mixed breed (SRD) sheep, castrated, fistulated and cannulated in the rumen, with initial mean body weight (BW) of 67.56 ± 9.13 kg were used, distributed in a 5x5 Latin Square experimental design. The roughage used were corn silage and forage palm, small cultivar and the treatments consisted of five replacement levels of ground corn with extra fat whole corn germ (0; 25; 50; 75; and 100%) in the concentrate. Consumption of MS, in kg / day and g / kg of CP, and that of MO, PB, NDT, FDNcp and CNFcp, expressed in kg / day, were not influenced by the replacement of ground corn with whole germ of extra fat corn. EE consumption increased linearly (P <0.05), as there was an increase in corn germ in the diet. With the replacement of ground corn with extra fat whole corn germ, there was no effect on the apparent digestibility coefficients of MS, MO, FDNcp. While the apparent digestibility coefficient of ether extract was linear, due to the dilution effect that diets with high EE content present. There was also a significantly increasing effect on the apparent digestibility of PB, since there was a smaller amount of PB excreted in the faeces. There was no significant effect on the time spent on food, rumination and leisure. The ruminal pH was not influenced by the replacement of ground corn with extra fat whole corn germ. Above all, it showed quadratic behavior throughout the collection hours. There was no effect of substitution on ammoniacal nitrogen (NAR) concentrations; however, decreasing linear behavior was observed due to the collection times and interaction of the replacement levels and the collection time. Quadratic behavior was also observed for acetate, and a decreasing linear effect for butyrate. The acetate and propionate concentrations, the total AGV and the acetate: propionate ratio showed quadratic behavior, depending on the collection times. In view of the results, it is recommended to partially replace ground corn with extra fat whole corn germ in the sheep diet.
Uso do Refinazil como concentrado alternativo em dietas de vacas em lactação
(2024-02-27) Rabelo, Milena Nóbrega; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/4870894593443363
The objective of the following study was to evaluate the effects of replacing 28 conventional concentrate (based on soybean bran, wheat bran and corn) with refinazil in the 29 diet of lactating cows, on the consumption and digestibility of nutrients and the production and 30 composition of milk. The experiment was conducted at the Experimental Station of the 31 Pernambuco Agronomic Institute (IPA) located in the city of São Bento do Una-PE. Eight 32 Holstein cows with an average live weight of 503 +- 31.4 kg, with an average milk production 33 of 17.3 +- 2.3 kg of milk/day and 90 days in lactation. The animals were distributed in two 4x4 34 Latin Squares, with four animals, four treatments and four experimental periods. Each 35 experimental period lasted 21 days, with 14 days for adapting the animals to the diets and seven 36 days for collecting data and samples. The consumption of dry matter (DM) (minimum 37 consumption of 14.05 kg with 51.7% replacement) and organic matter (OM) (minimum 38 consumption of 12.46 kg with 46.17% replacement) showed quadratic behavior, the intake of 39 digestible dry matter (DDM), digestible organic matter (DOM), non-fibrous carbohydrate 40 (NFC) and total digestible nutrients (TDN) decreased linearly with replacement. The 41 consumption of corrected neutral detergent fiber (NDF) increased linearly, while the crude 42 protein (CP) content was not influenced by substitution. Regarding digestibility, only CP 43 decreased linearly and NDFcp showed a quadratic behavior (maximum digestibility of 485.7 44 g/kg DM with 32.88% replacement). Milk production without (19.11-15.91 Liters/day) and 45 with correction (19.82-16.8 Liters/day) decreased linearly. While the fat content (3.8%), crude 46 protein (3.2%), lactose (4.8%) and total solids (12.5%) were not changed by the substitution. It 47 is concluded that it is not recommended to replace conventional concentrate, based on corn, 48 soybean bran and wheat bran (24% CP) with Refinazil in diets for cows with an average 49 production of 20 kg of milk/day.