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Chinese yam (Dioscorea esculenta)

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
Click on the "Nutritional aspects" tab for recommendations for ruminants, pigs, poultry, rabbits, horses, fish and crustaceans
Common names 
Igname de Chine, petite igname, asiatic yam, chinese yam, lesser yam, gan shu, igname des blancs, chinesischer yam, inhame de São, inhame, batata de China
Species 

Dioscorea esculenta (Lour.) Burkill [Dioscoreaceae]

Synonyms 
Dioscorea aculeata L., Dioscorea fasciculata Roxb., Dioscorea sativa auct., Oncus esculentus Lour.
Feed categories 
Related feed(s) 
Description 
A variety of yam that produces small egg-shaped tubers which lie shallow in the soil. The tubers are very sweet and white in colour, and the peel is very thin. This species is most suitable for garden planting. At lower altitudes in the tropics it can be grown in place of the Irish potato.
Nutritional aspects
Pigs 
The peelings are used for pig feed.
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
Dry matter % as fed 7.0 1
Crude protein % DM 10.0 1
Crude fibre % DM 7.6 1
Ether extract % DM 0.9 1
Ash % DM 6.3 1
Gross energy MJ/kg DM 17.3 *
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 78.2 *
DE growing pig MJ/kg DM 13.5 *

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

References

Oyenuga, 1968

Last updated on 24/10/2012 00:43:59

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 18.6 1
Crude protein % DM 8.7 1
Crude fibre % DM 3.5 1
Ether extract % DM 0.5 1
Ash % DM 4.2 1
Gross energy MJ/kg DM 17.3 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 1.5 1
Phosphorus g/kg DM 1.5 1
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 84.6 *
DE growing pig MJ/kg DM 14.7 *

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

References

Oyenuga, 1968

Last updated on 24/10/2012 00:43:59

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 18.6 1
Crude protein % DM 7.7 1
Crude fibre % DM 1.0 1
Ether extract % DM 0.1 1
Ash % DM 2.7 1
Gross energy MJ/kg DM 17.4 *
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 88.5 *
DE growing pig MJ/kg DM 15.4 *

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

References

Oyenuga, 1968

Last updated on 24/10/2012 00:43:59

References
References 
Campero, M, J. R. ; Randel, P. F. ; Martin, F. W., 1982. Partial replacement of maize by Dioscorea alata and D. esculenta meals in diets for hens. Memoria, Asociacion Latinoamericana de Produccion Animal. 1982, 17: 7-12
Oyenuga, V. A. ; Fetuga, B. L., 1975. Chemical composition, digestibility and energy values of some varieties of yam, cassava, sweet potatoes and cocoyams for pigs. Nigerian J. Sci., 9 (1): 63-110
Oyenuga, V. A., 1968. Nigeria's foods and foodstuffs. Ibadan, University Press
3 references found
Datasheet citation 

DATASHEET UNDER CONSTRUCTION. DO NOT QUOTE. https://feedipedia.org/node/542 Last updated on March 16, 2010, 17:13

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