Abstract

QUISPE CUSI, A et al. Effect of sulfur levels in the production, chemical composition and digestibility of hydroponic green fodder barley (Hordeum vulgare L). Rev. investig. vet. Perú [online]. 2016, vol.27, n.1, pp.31-38. ISSN 1609-9117.  http://dx.doi.org/10.15381/rivep.v27i1.11457.

This study aimed to evaluate the effect of sulfur levels as additive in the production, chemical composition and digestibility of hydroponic green fodder barley. Four levels of Swereused:0,20,30 and40 ppmand harvest wasdoneat18days.Acompletelyrandom design was used with five repetitions. Biomass production (PB) and the height of stem (AT) were 34.9±0.5 kg/m2 and 14.61±1.38 cm, respectively, having a lineal response for PB (Y=5.33+0.67X) and AT (Y=10.10+1.80X). The 0 S level showed higher crude protein (CP) content and nitrogen-free extract: 12.95±4.21% and 55.19±3.95% respectively; the 30 ppm level showed higher content of crude fibre (CF) to the raw fiber and neutral detergent fiber (NDF): 23.61±3.65% and 65.95±4.15% respectively; and the 40 ppm level showed higher content of ether extract (EE) and ash: 3.88±3.15% and 4.61±2.98%, respectively. The apparent digestibility of CF and EE were significantly affected by sulfur levels.

Keywords : intake; crude protein; biomass; nutrient solutions; guinea pig; hydroponic fodder.

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