Naslov
Ratio of released minerals and organic matter fermented in rumen from four grasses

Autori
Grbeša, Darko ; Mioč, Boro ; Kiš, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of the Abstracts of the 51st Annual Meeting of the European Association for Animal Production / Van Arendonk, J.A.M - Wageningen : Wageningen Pers, 2000, 117-117

Skup
51st Annual Meeting of the European Association for Animal Production

Mjesto i datum
Den Haag, Nizozemska, 21.08.2000. - 24.08.2000

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Sažetak
Release of mineral from forage in soluble form per fermentable organic matter (FOM) is prerequisite of effective rumen microbial fermentation and synthesis. The object of this study was to determine the release of minerals in rumen per kg fermentable organic matter (FOM) from the following grasses: perennial ryegrass, tall fescue, red rescue, and cocksfoot. The grasses were cut in autumn. The release of minerals was measured at 24 h disappearance from nylon bags incubated in rumen. The grasses were compared using 4x4 Latin square design. Relationship of mineral released with their concentration, dry matter degradability and ash solubility were also estimated. Perennial ryegrass showed the significantly highest release (g or mg kg-1 FOM) of Ca (6,85, Fe 248,6) and Cu (9,51), cocksfoot had the highest release of P (6,58) and K (35,88), and tall fescue that of Mg (6,91) and Na (4,62). Cocksfoot has significantly lower Zn release than the other three grasses. Correlation of minerals released in rumen with their concentration in dry matter ranged from 0,42 to 0,92, with dry matter degradability ranged from 0,58 to 0,87, and with ash solubility ranged from 0,46 to 0,86. Although there were significant differences among particular grasses, they all released enough minerals to meet mineral requirements of both rumen microbes and animals.

Izvorni jezik
Engleski

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