Nutritional quality and organic matter degradability of Brachiaria spp. agronomically biofortified with selenium.

Autor: de Abreu Faria L; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil.; Amazon Rural Federal University Campus Paragominas, Pará, Brazil., Karp FHS; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil., Righeto PP; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil., Abdalla Filho AL; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil., Lucas RC; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil., Machado MC; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil., Natel AS; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil., Graciano TC; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil., Abdalla AL; Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Journal of animal physiology and animal nutrition [J Anim Physiol Anim Nutr (Berl)] 2018 Dec; Vol. 102 (6), pp. 1464-1471. Date of Electronic Publication: 2018 Aug 09.
DOI: 10.1111/jpn.12971
Abstrakt: Selenium (Se) fertilisation in grazing systems can improve the quality of animal forage, but there are few studies addressing the influence of Se fertilisation on the chemical composition and ruminal degradability of forage fertilised with Se. The aim of this study was to evaluate the chemical composition and in vitro assays of truly degraded organic matter (TDOM), short-chain fatty acids (SCFA) total gas (GP) and methane (CH 4 ) production of two harvests of Brachiaria brizantha cv. Marandu fertilised with urea coated with B, Cu and sodium selenate for 0, 10, 20, 40, 80 and 160 g/ha of Se. Selenium content in forage increased linearly with the different doses at 30 and 60 days after fertilisation. However, doses of 20 and 80 g/ha Se fertilisation yielded positive effects increasing Se content and truly degraded organic matter in vitro of Brachiaria brizantha cv. Marandu.
(© 2018 Blackwell Verlag GmbH.)
Databáze: MEDLINE
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