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The objective was to evaluate the effects of palm kernel cake (PKC) supplementation on voluntary feed intake, in situ rumen degradability and performance in the wettest (WS—January to June) and less rainy seasons (LR—July to December) in the eastern Amazon. A total of 52 crossbred buffaloes that were neither lactating nor gestating were used, with 24 for the LR, aged 34 ± 04 months and an initial average weight of 503 ± 48 kg, and 24 for the WS aged 40 ± 04 months with an average weight of 605 ± 56 kg. The four treatments (levels of PKC in relation to body weight) were distributed in a completely randomized design, with 0% (PKC0), 0.25% (PKC0.2), 0.5% (PKC0.5) and 1% (PKC1) with six repetitions. The animals were housed in Marandu grass paddocks, intermittently, with access to water and mineral mixture ad libitum. Degradability was evaluated by the in situ bag technique in four other crossbred buffaloes with rumen cannulae, in a 4 × 4 Latin square (four periods and four treatments). The inclusion of PKC increased supplement consumption and production of ether extracts and reduced the intake of forage and non-fibrous carbohydrates. The dry matter degradability of Marandu grass was not affected; however, the fermentation kinetics in neutral detergent fiber (NDF) differed between the treatments. The co-product dry matter colonization time was greater in PKC1 and the highest effective degradability rates were from PKC0, but the productive performance of the animals was not influenced. Supplementation of buffaloes with PKC is recommended for up to 1% of body weight.

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Introduction:The increase in availability and nutritional composition of oilseed co-products has made it essential to study the use of this biomass.Methods:The objective of this work was to investigate the effects of including oilseed cakes on intake and digestibility, performance, carcass characteristics and meat sensory in feedlot lambs. Twenty-four crossbred Dorper × Santa Inês lambs, with initial body weight of 30 ± 1.3 kg, male, castrated, aged 4–5 months, were distributed in a completely randomized experimental design with four treatments (diets) and six replications (animals), confined in individual stalls for 70 days.Results:The inclusion of tucuma cake (Tuc) reduced dry matter intake (p < 0.01) and diets with cupuassu cake (Cup) and palm kernel cake (Palm) reduced dry matter digestibility (p < 0.05). The Tuc diet also provided the lowest final body weight (p = 0.02); lower average daily gain (p = 0.03); lower feed efficiency (p = 0.03) and lower carcass weight (p < 0.01). However, diets did not influence carcass yield (%), fat thickness (mm) and loin eye area (cm2; p > 0.05). Meat from lambs on the control diet was rated as less fibrous and more tender (p < 0.05).Conclusion:The inclusion of tucuma cake does not influence digestibility, but reduces intake, performance and influences carcass characteristics and meat texture. Diets with cupuassu cake or palmiste cake reduced digestibility, however, intake, performance and carcass characteristics were similar to the control diet.

This chapter will address the main omics approaches used in studies involving the genus Corynebacterium, Gram-positive microorganisms that can be isolated from many diverse environments. Currently, the genus Corynebacterium has more than 130 highly diversified species, many of which present medical, veterinary and biotechnological importance, such as C. diphtheriae, C. pseudotuberculosis, C. ulcerans and C. glutamicum. Due to the wide application in these fields, several omics methodologies are used to better elucidate the species belonging to this genus, such as genomics, transcriptomics and proteomics. The genomic era has contributed to the development of more advanced and complex approaches that enable the increase of generated data, and consequently the advance on the structural, functional and dynamic knowledge of biological systems.

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A criação de suínos na região amazônica em diferentes sistemas da agropecuária está fortemente correlacionada com produção de dejetos oriundos desse processo, em que quase sempre é manejado de forma incorreta, ocasionando problemas ambientais, dessa forma, sua utilização em forma de biofertilizantes na produção de milho hidropônico é uma solução. Este trabalho objetivou avaliar diferentes concentrações de biofertilizante na produção de forragem hidropônica de milho, na Amazônia. O biofertilizante preparado a partir de dejetos de suínos foi aplicado na forma de tratamentos (concentração de biofertilizante na solução (CBS) para fertirrigação) sendo: T-10%, T2-10%, T3-20%, T4-30%. No momento da colheita foram coletadas as 20 plântulas centrais de cada parcela experimental, para as avaliações dos parâmetros morfológicos de massa fresca (MF), matéria seca total (MS), número de folhas (NF) e a produtividade por parcela (PP). A aplicação de dejetos de suínos como biofertilizante pode favorecer a produção de milho hidropônico forrageiro, incrementando em variáveis como MF e NF, além disso, pode ser uma prática efetiva e importante do ponto de vista ecológico e ambiental.

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