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Blue signal grass (Brachiaria leersioides)

IMPORTANT INFORMATION: This datasheet is pending revision and updating; its contents are currently derived from FAO's Animal Feed Resources Information System (1991-2002) and from Bo Göhl's Tropical Feeds (1976-1982).

Datasheet

Description
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Common names 

Blue signal grass

Related feed(s) 
Description 

Blue signal grass is an annual grass that grows in semi-arid areas (Göhl, 1981). Blue signal grass provides grazing during the dry season (Ibrahim et al., 1988; Bogdan, 1958)

Morphology

Blue signal grass (Brachiaria leersioides) is a caespitose, tufted annual grass. Its culms are erect and geniculate,slender, 15-70 cm tall. The leaves are mostly cauline, hairy, bluish in colour. The leaf blades are  2–20 cm long, 2–5 mm wide, linear, flat, spreading. The inflorescence is a 3–20 cm long panicle bearing 3–14 racemes along a central axis. Blue signal grass racemes are 1–7 cm long, deflexed or spreading, unilateral (Ibrahim et al., 2016). Spikelets are about 3 mm long (Bogdan, 1958). There are often waxy deposits in the inflorescence (Quattrocchi, 2006).

Distribution 
Blue signal grass is native of Kenya, Uganda, United Republic of Tanzania, Chad to Saudi Arabia, Democratic Republic of the Congo and Mozambique (Ibrahim et al., 1988). Also reported in the "Grasses of Egypt" (Ibrahim et al.,  2016).
 
Blue signal grass can be found from sea level to an altitude of 1800 m, in semi-arid regions in dry grassland on sandy and shallowstony soils ((Quattrocchi, 2006; Ibrahim et al., 1988).
Blue signal grass can grow in light shade, in bush and open scrub but also in woodland (Quattrocchi, 2006)
 
Nutritional aspects
Ruminants 

Blue signal grass was reported to represent a minute part of sheep and gazella's diet in Kenya (Kilonzo, 2004).

Nutritional tables
Tables of chemical composition and nutritional value 

Avg: average or predicted value; SD: standard deviation; Min: minimum value; Max: maximum value; Nb: number of values (samples) used

IMPORTANT INFORMATION: This datasheet is pending revision and updating; its contents are currently derived from FAO's Animal Feed Resources Information System (1991-2002) and from Bo Göhl's Tropical Feeds (1976-1982).

Main analysis Unit Avg SD Min Max Nb
Crude protein % DM 9.9 7.9 11.8 2
Crude fibre % DM 33.5 31.5 35.5 2
NDF % DM 67.2 *
ADF % DM 39.4 *
Lignin % DM 5.6 *
Ether extract % DM 2.0 1.9 2.0 2
Ash % DM 14.1 13.5 14.7 2
Gross energy MJ/kg DM 17.2 *
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 57.1 *
Energy digestibility, ruminants % 54.5 *
DE ruminants MJ/kg DM 9.4 *
ME ruminants MJ/kg DM 7.5 *

The asterisk * indicates that the average value was obtained by an equation.

References

Dougall et al., 1965

Last updated on 27/11/2012 14:22:02

References
Datasheet citation 

DATASHEET UNDER CONSTRUCTION. DO NOT QUOTE. http://www.feedipedia.org/node/487 Last updated on June 12, 2017, 16:23

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