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Forskningsartikel2007Vetenskapligt granskad

Evaluation of traditional sorghum (Sorghum bicolor) beer residue, shea-nut (Vitellaria paradoxa) cake and cottonseed (Gossypium Spp) cake for poultry in Burkina Faso: Availability and amino acid digestibility

Pousga, S; Boly, H; Lindberg, JE; Ogle, B

Sammanfattning

The present study aimed to evaluate the nutritive value for chickens of some local by-products in Burkina Faso, and to estimate their true amino acid digestibility in cockerels. Sun-dried sorghum (Sorghum bicolor) beer residue (n = 144) and shea-nut (Vitellaria paradoxa) cake (n = 36) samples were collected in two different locations during six months, while cottonseed (Gossypium spp) cake samples were purchased monthly in a local market for the same period (n = 24). Mean dry matter (DM) content of beer residue was 94.7%, and crude protein (CP), ether extract (EE), crude fibre (CF), calcium (Ca), phosphorus (P) and metabolizable energy (ME) contents were 23.4, 5.6, 8.5, 0.14 and 0.25 % of DM, and 13.4 MJ/kg, respectively. Mean lysine, methionine, cystine and threonine contents were 0.87, 0.44, 0.41, and 0.63 %, respectively, and the corresponding true excreta digestibility values were 92, 98, 95 and 97 %. Mean DM content of shea-nut cake was 95.6 %, and CP, EE, CF, Ca, P and ME contents were 6.7, 7.3, 10.9, 0.40 and 0.19 %, and 13.1 MJ/kg, respectively. Lysine, methionine, cystine and threonine contents were 0.27, 0.14, 0.09, and 0.23 %, and the true digestibility values were 96, 78, 88, and 77%, respectively. Mean DM, CP, EE, CF, Ca, P and ME contents of cottonseed cake were 94.8, 44.3, 5.9, 9.9, 0.34 and 1.3 %, and 12.7 MJ/kg. Lysine, methionine, cystine and threonine contents were 1.6, 0.80, 0.82, and 1.9 % and the true digestibility values were 89, 97, 98 and 94%. Overall, higher nutritive values were found for samples collected between October and December, and no difference was found between locations

Nyckelord

Amino acid digestibility; Beer residue; Burkina Faso; Cockerels

Publicerad i

International Journal of Poultry Science
2007, Volym: 6, nummer: 9, sidor: 666-672