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Acacia (Acacia tortilis subsp. raddiana)

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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Synonyms 

Vachellia tortilis subsp. raddiana (Savi) Kyal. & Boatwr. (Nom valide)

Acacia raddiana Savi

 

Taxonomic information 

Acacia tortilis is currently known as Vachellia tortilis. It was reclassified after molecular phylogenetic studies resulted in the transfer of many Acacia species into the genera VachelliaSenegaliaMariosousa and Acaciella, with only Australian species remaining the Acacia genus (Kyalangalilwa et al., 2013).

Related feed(s) 
Description 

Acacia tortilis is a tropical spiny legume tree that grows to 12-21 m in height. It has a spreading and dense umbrella-shaped crown. The bole is more or less short and cylindrical, the crown is umbrella-shaped, spreading and somewhat dense.

His bark is slightly cracked to fissured, brown, slash pinky-brown, with dark brown outerbark. Stems are reddish to blackish purple, more or less glabrous or puberulous. Thorns are mostly straight, up to 5-10cm long, and the others are more or less curved, reaching 0.5cm long, set pairs in the leaf axil, white.

Leaves are alternate, bipinnate, up to 2.5-4.5 cm long, with 2-10 pairs of pinnae and 6-20 pairs of leaflets per pinna. Leaflets are oblong, glabrous or more or less pubescent, 3-4mm long and 0.5-1mm across. Petioles are 2-4 cm long, often with a crateriform gland above before the first pair of pinnae and sometimes others.

The flowering happened in the rainy season after the first leaves appear. The inflorescence is a fascicle, set in the leaf axil, composed of 1-6 glomerules, about 2.5cm long, whitish, pedunculate, 0.5-1cm in diameter. Fruits are pods more or less coiled into a spiral, 7-12cm long and 0.5-0.7cm across, pale green to yellowish when ripe, containing up to 10 seeds. Seeds are brown, more or less convex, elliptic or round, 4-7mm in diameter (Arbonnier, 2004).

 

Distribution 

From Senegal to Cameroon, as far as Somalia. Tropical Africa, North Africa, Middle-East and Arabia. Common and fairly gregarious, sometimes in pure stands.

Nutritional aspects
Ruminants 

The leaves eaten mostly by camels; the ripe fruits used as cattle feed.

Nutritional tables

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
Dry matter % as fed 32.5 1
Crude protein % DM 12.4 8.6 16.2 2
Crude fibre % DM 34.9 28.2 41.6 2
NDF % DM 62.7 1
ADF % DM 51.4 1
Lignin % DM 24.3 1
Ether extract % DM 2.2 2.1 2.4 2
Ash % DM 7.2 6.0 8.4 2
Gross energy MJ/kg DM 18.6 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 13.9 10.2 17.5 2
Phosphorus g/kg DM 1.7 1.6 1.9 2
Potassium g/kg DM 5.9 1
Magnesium g/kg DM 2.2 1
 
Secondary metabolites Unit Avg SD Min Max Nb
Tannins (eq. tannic acid) g/kg DM 10.2 1
Tannins, condensed (eq. catechin) g/kg DM 0.1 1
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 60.3 *
Energy digestibility, ruminants % 57.6 *
DE ruminants MJ/kg DM 10.7 *
ME ruminants MJ/kg DM 8.6 *

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

References

CIRAD, 1991; INFIC, 1978

Last updated on 24/10/2012 00:43:32

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 45.4 9.0 36.6 55.8 4
Crude protein % DM 16.7 3.2 10.5 20.8 18
Crude fibre % DM 18.4 6.8 12.3 42.7 16
NDF % DM 37.8 9.1 29.6 66.1 13
ADF % DM 24.9 8.9 14.2 52.4 15
Lignin % DM 11.1 3.7 4.3 20.2 15
Ether extract % DM 4.3 1.4 2.2 7.3 16
Ash % DM 11.0 4.3 6.1 21.4 18
Gross energy MJ/kg DM 18.0 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 18.7 6.1 8.9 28.7 13
Phosphorus g/kg DM 1.8 0.5 0.9 2.8 13
Potassium g/kg DM 11.4 2.6 8.0 16.0 8
Sodium g/kg DM 0.5 0.2 0.1 0.7 4
Magnesium g/kg DM 2.7 0.6 2.2 3.7 8
Manganese mg/kg DM 64 25 26 82 4
Zinc mg/kg DM 22 8 10 27 4
Copper mg/kg DM 4 1 2 5 4
 
Secondary metabolites Unit Avg SD Min Max Nb
Tannins (eq. tannic acid) g/kg DM 33.6 15.5 0.0 53.2 11
Tannins, condensed (eq. catechin) g/kg DM 0.2 0.1 0.1 0.3 6
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 77.0 *
Energy digestibility, ruminants % 73.6 *
DE ruminants MJ/kg DM 13.2 *
ME ruminants MJ/kg DM 10.7 *

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

References

Bartha, 1970; CIRAD, 1991

Last updated on 24/10/2012 00:43:32

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 90.2 5.7 76.0 97.1 16
Crude protein % DM 17.5 2.8 14.6 24.9 16
Crude fibre % DM 23.4 4.6 16.4 37.6 16
NDF % DM 38.0 3.1 34.1 42.8 6
ADF % DM 30.6 2.4 28.2 34.3 6
Lignin % DM 9.0 0.7 7.9 9.8 6
Ether extract % DM 1.8 0.3 1.2 2.3 16
Ash % DM 6.3 1.4 4.8 11.0 16
Gross energy MJ/kg DM 18.5 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 8.3 2.1 5.1 11.9 16
Phosphorus g/kg DM 2.5 0.4 1.7 3.1 16
Potassium g/kg DM 14.3 2.0 10.5 16.9 14
Sodium g/kg DM 0.0 1
Magnesium g/kg DM 2.3 0.5 1.7 3.5 14
Manganese mg/kg DM 34 23 16 96 11
Zinc mg/kg DM 27 5 14 33 11
Copper mg/kg DM 3 1 2 5 11
 
Secondary metabolites Unit Avg SD Min Max Nb
Tannins (eq. tannic acid) g/kg DM 14.4 8.0 7.7 29.4 6
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 86.6 *
Energy digestibility, ruminants % 84.1 *
DE ruminants MJ/kg DM 15.6 *
ME ruminants MJ/kg DM 12.5 *
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 53.3 *
DE growing pig MJ/kg DM 9.9 *

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

References

CIRAD, 1991; INFIC, 1978

Last updated on 24/10/2012 00:43:32

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 36.3 16.2 26.9 76.0 8
Crude protein % DM 17.8 2.8 13.5 21.0 15
Crude fibre % DM 21.9 3.8 13.3 27.2 9
NDF % DM 41.0 8.3 34.8 58.6 7
ADF % DM 29.1 3.9 21.6 33.8 7
Lignin % DM 9.0 1.0 7.8 10.3 7
Ether extract % DM 2.1 1.1 0.9 4.8 9
Ash % DM 7.4 1.1 6.3 9.2 10
Gross energy MJ/kg DM 18.4 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 9.2 3.9 1.7 14.6 8
Phosphorus g/kg DM 3.3 2.3 1.7 8.7 8
Potassium g/kg DM 15.7 2.0 14.0 18.9 6
Magnesium g/kg DM 2.6 0.5 2.2 3.5 6
Manganese mg/kg DM 44 18 69 2
Zinc mg/kg DM 32 23 41 2
Copper mg/kg DM 3 3 3 2
 
Secondary metabolites Unit Avg SD Min Max Nb
Tannins (eq. tannic acid) g/kg DM 15.1 15.4 0.0 47.3 7
Tannins, condensed (eq. catechin) g/kg DM 0.1 0.1 0.0 0.1 3
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 87.1 *
Energy digestibility, ruminants % 84.4 *
DE ruminants MJ/kg DM 15.5 *
ME ruminants MJ/kg DM 12.4 *
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 55.7 *
DE growing pig MJ/kg DM 10.2 *

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

References

CIRAD, 1991; INFIC, 1978

Last updated on 24/10/2012 00:43:32

References
Datasheet citation 

DATASHEET UNDER CONSTRUCTION. DO NOT QUOTE. https://www.feedipedia.org/node/343 Last updated on June 15, 2020, 9:20

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