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Background And Aim: Phenolic tannins, which are ubiquitous in plants, exhibit diverse biological activities and have drawn significant attention for their potential impact on ruminant nutrition and health. Although phenolic tannins have beneficial and detrimental effects on rumen fermentation, their precise influence remains poorly understood. This study aimed to explore the effects of varying doses of green tea extract (GTE) on rumen fermentation parameters through an trial using sheep rumen liquids.

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Hyperornithinemia-Hyperammonemia-Homocitrullinuria Syndrome in Vietnamese Patients.

Medicina (Kaunas)

November 2024

Center of Endocrinology, Metabolism, Genetic/Genomics and Molecular Therapy, Vietnam National Children's Hospital, 18/879 La Thanh, Dong Da, Hanoi 11512, Vietnam.

: Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome (HHH; OMIM 238970) is one of the rare urea cycle disorders. Ornithine carrier 1 deficiency causes HHH syndrome, characterized by failure of mitochondrial ornithine uptake, hyperammonemia, and accumulation of ornithine and lysine in the cytoplasm. The initial presentation and time of diagnosis in HHH highly varies.

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Article Synopsis
  • Two new strains of ammonia-oxidising archaea were isolated from acidic soils in the UK and China, showing over 99% genetic similarity but distinct physiological features.
  • Both strains, Nd1 and Nd2, are non-motile chemolithotrophs that oxidize ammonia to gain energy, but cannot use urea as an ammonia source.
  • The strains were classified into a new genus, with Nd1 and Nd2 designated as type strains for new species, alongside the proposal of a new family and order.
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Ammonia (NH) is a viable candidate for the storage and distribution of hydrogen (H) due to its exceptional volumetric and gravimetric hydrogen energy density. Therefore, it is desirable to develop NH storage materials that exhibit robust stability across numerous adsorption-desorption cycles. While porous materials with polymeric frameworks are often used for NH capture, achieving reversible NH uptake remains a formidable challenge, primarily due to the high reactivity of NH.

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This work was designed to assess the impact of varying zeolite concentrations in diet and litter to enhance broiler's growth performance, immunity, and litter quality. A complete random arrangement was used for distributing 525 unsexed "Cobb 500" broiler chicks into seven treatments (75 chick / treatment), each treatment divided into 3 replicates (25 chicks / replicate). The 1st group (control one) received the recommended basal diet.

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