M.M. ELAMIN and E.A. ELZUBEIR
Institute of Animal. Production, University of Khartoum, Khartoum North,
P.0 .Box 32, Sudan.
SUMMARY
The effect of feeding increasing levels of dietary cooked sun-dried blood meal as a source of lysine was studied in broiler chicks. Graded levels of L-lysine 0.0, 0.1, 0.2, 0.3 and 0.4% derived from 0.0, 1.45, 2.9, 4.35 and 5.8% blood meal was used as treatments. Results showed that increasing the dietary level of derived lysine, significantly (p < 0.01) increased weight gain and improved efficiency of feed utilization. Dressing percentage on hot and cold carcass bases, carcass protein and fat paralleled the trend in weight gain. However, fat was significantly (p < 0.01) reduced in chicks fed the adeqate level of 0.4% derived lysine. Energy and nitrogen retained in the body significantly (p < 0.01) increased with blood meal addition.
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