Perfil de ácidos graxos na carne de novilhos superjovens da raça Devon, terminados sob diferentes sistemas de alimentação

Menezes, Luís Fernando Glasenapp de; Restle, João; Kozloski, Gilberto Vilmar; Brondani, Ivan Luiz; Arboitte, Miguelângelo Ziegler; Silveira, Magali Floriano da; Nörnberg, José Laerte

doi:10.5433/1679-0359.2014v35n6p3273

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…A densidade energética da dieta se correlaciona positivamente com a deposição de gordura na carcaça e ganho de peso dos animais. Quando as exigências de mantença, crescimento dos órgãos e dos tecidos são atendidas, o restante de energia que animal ingere é mantida em reservas sob forma de gordura (MENEZES et al, 2014).…”

Section: Discussionunclassified

“…Contudo, diferente dos resultados deste trabalho Menezes et al (2014) relataram que ao trabalharem como níveis de suplementação (0; 0,5 e 1% do PV) obtiveram maior rendimento de carcaça para os animais suplementados com o maior nível. Corroborando com os resultados relatados por Marcondes et al (2011) que tiveram rendimentos de carcaças superiores para animais suplementados com 2% do PV em relação aqueles suplementados com 1% do PV.…”

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Silagens De Capim-Elefante E Embaúba Aditivada Com Produtos Alternativos Na Amazônia Ocidental

Santos

Gomes

Pinedo

et al. 2019

NAT

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Objetivou-se avaliar o padrão fermentativo e a bromatologia da silagem de capim- elefante cultivar Napier com as folhas de Embaúba na proporção de 50:50 aditivada com torta de semente de cupuaçu, cana-de-açúcar e fubá de milho em diferentes níveis. O experimento foi realizado em delineamento inteiramente casualizado, com quatro repetições por tratamento. Foram testados os tratamentos (0%), (5%), (10%) e (15%) dos aditivos citados. O material foi ensilado em mini-silos de tubos de PVC por 45 dias para efetivação do processo fermentativo. Foram avaliados pH, matéria seca (MS), proteína bruta (PB), fibra em detergente neutro e ácido (FDN/FDA), hemicelulose (HEM) e nutrientes digestíveis totais (NDT). O pH da torta de semente de cupuaçu e do fubá de milho estão dentro da amplitude preconizada na literatura. Os aditivos proporcionaram maior percentual de MS e PB em todos os tratamentos, testando estes dentro dos limites considerados aceitáveis para um adequado processo fermentativo. FDN e FDA aumentaram linearmente à medida que aumentou a inclusão de torta de cupuaçu e fubá, porém permaneceram abaixo do limite considerado limitante ao consumo voluntário dos ruminantes e a digestibilidade. Os aditivos adicionados na forragem de capim-elefante com folhas de Embaúba melhoraram o valor nutritivo da silagem.Palavras-chave: composição bromatológica, Cecropia paphytachua, ensilagem, Pennisetum purpureum. ELEPHANT GRASS SILAGE AND EMBAÚBA WITH ADDED ALTERNATIVE PRODUCTS IN THE WESTERN AMAZON ABSTRACT: This study aimed to evaluate the fermentative pattern and the bromatological of the Elephant grass silage cultivar Napier with the Embaúba leaf’s in the proportion of 50:50, added with of cupuassu cake seed, sugarcane and corn meal at different levels. The experiment was carried out in a completely randomized design, with four replications per treatment. The treatments 0%, 5%, 10%) and 15% of the cited additives were tested. The ensiled material was in mini-silos of PVC pipes for 45 days to affect the fermentation process. pH, dry matter (DM), crude protein (CP), neutral detergent fiber and acid (NDF/ FDA), hemicellulose (HEM) and total digestible nutrients (NDT) were evaluated. The pH of the cupuassu and maize meal are within the range recommended in the literature. The additives provided a higher percentage of DM and PB in all treatments, and these were within the limits considered acceptable for an adequate fermentation process. NDF and ADF increased linearly as the inclusion of cupuassu cake and corn meal increased, but remained below the limits considered limiting the voluntary consumption of ruminants and digestibility. The additives added in the elephant grass fodder with Embaúba leaves improved the nutritive value of the silage.Keywords: bromatological composition, Cecropia paphytachua, ensilage, Pennisetum purpureum.

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Section: Discussionunclassified

Silagens De Capim-Elefante E Embaúba Aditivada Com Produtos Alternativos Na Amazônia Ocidental

Santos

Gomes

Pinedo

et al. 2019

NAT

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Conjugated Fatty Acids in Muscle Food Products and Their Potential Health Benefits: A Review

Wang

Han

Wang

et al. 2020

J. Agric. Food Chem.

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Conjugated fatty acids (CFAs) are a group of positional and geometric isomers of polyunsaturated fatty acids (PUFAs) with conjugated double bonds. There are several subgroups of CFAs including conjugated linoleic acids (CLAs), conjugated linolenic acids (CLNAs), conjugated eicosapentaenoic acids (CEPAs), and conjugated docosahexaenoic acids (CDHAs). CFAs, especially CLAs, have been studied in recent years both for their health benefits and factors that affect their level in muscle food products. CFAs have been reported in numerous studies as having antitumor, antiobesity, antidiabetes, anticardiovascular disease, and modulating immune system effects. These biological activies are involved in changes of lipid peroxidation and energy expenditure, as well as inhibitory effects on the hormone receptor, lipid metabolism, lipoprotein lipase activity, and adiponectin production. A large body of studies has revealed that the diet, processing, storage conditions, slaughter season, and age are common factors that affect CFA content in muscle food products, as detailed in this review. Recommendations are made regarding animal farming and meat product processing to obtain high CFA content meat products and to optimize the benefits of CFA for health promotion.

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Feeding behaviour of beef cattle in intensive finishing on pasture and supplemented with different additives

Xavier,

Pereira,

Pina

et al. 2023

Anim. Prod. Sci.

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Context Concentrate supplementation at high rates represents a method used to improve the productive efficiency of the beef cattle grazing system. Further, the use of additives increases the nutrient-use efficiency of diets. In this sense, it is important to determine the impact of additives in grazing beef cattle fed with high-concentrate supplements to determine the appropriate management practices of the system. Aim This study aimed to evaluate the feeding behaviour of Nellore beef cattle (Bos taurus indicus) in intensive finishing on pasture and fed with different additives. Methods Twenty-eight Nellore cattle [with initial bodyweight (BW) of 480 ± 5 kg and age of 24 ± 2 months] were finished on Urochloa brizantha cv. BRS Piatã pastures. The animals were assigned to a completely randomised design with four experimental supplements: U (urea as non-protein nitrogen source), UO (slow-release urea partially replacing urea), UOL (supplement UO + Saccharomyces cerevisiae yeast), and UOLP (supplement UOL + multi-strain probiotics). Key results Supplement intake and idleness time were most affected by the season (P < 0.001). The total dry-matter intake was higher in UOLP (P < 0.004), and this supplement also produced the least effects on feeding behaviour. Conclusion The beginning of the rains affected the feeding behaviour. The additive combination in intensive finishing on pasture, such as UOL and UOLP, improved the intake and did not affect the feeding behaviour during the day. Implications These results indicate that the use of additives in intensive finishing on pasture improves productive efficiency and does not change the animal’s behaviour, resulting in an important technology to be disseminated and applied by grazing beef cattle producers.

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Perfil de ácidos graxos na carne de novilhos superjovens da raça Devon, terminados sob diferentes sistemas de alimentação

Cited by 3 publications

References 14 publications

Silagens De Capim-Elefante E Embaúba Aditivada Com Produtos Alternativos Na Amazônia Ocidental

Silagens De Capim-Elefante E Embaúba Aditivada Com Produtos Alternativos Na Amazônia Ocidental

Conjugated Fatty Acids in Muscle Food Products and Their Potential Health Benefits: A Review

Feeding behaviour of beef cattle in intensive finishing on pasture and supplemented with different additives

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