The Effect of Sesbania Seeds Partial Replacement with Soybean meal on the productive Features for two Broiler Hybrids .

Abstract

An experiment for two hybrids (Cobb and Ross) has been carried out to know the production performance by replacing partially Sesbania seeds (with a percentage of 0%, 15%, 30%, 45%) with Soybean meal . This experiment comprisen the use of 80 chicks for each Cobb and Ross and they have been distributed randomly on eight coops (ten chicks for each coop) and have been fed on the experimental diets contained Sesbania seeds instead of Soybean meal (Two times for each treatment) as follows : Treatment 1 : Replacement of Sesbania Seeds 0% (Cobb) . Treatment 2 : Replacement of Sesbania Seeds 0% (Ross) .Treatment 3 : Replacement of Sesbania Seeds 15% (Cobb) .Treatment 4 : Replacement of Sesbania Seeds 15% (Ross) .Treatment 5 : Replacement of Sesbania Seeds 30% (Cobb) .Treatment 6 : Replacement of Sesbania Seeds 30% (Ross) .Treatment 7 : Replacement of Sesbania Seeds 45% (Cobb) .Treatment 8 : Replacement of Sesbania Seeds 45% (Ross) .The weight gain , diets consumption and feed gain conversion as well as carcass cut – up parts have been measured at the age of 20 and 40 days .The results have shown that there were no significant differences between Cobb and Ross regarding the weight gain at the age of 10, 20, 30 and 40 days in addition to the treatments except for the age of 30 days in which there was a significant difference (P<0.05) whereas the percentage of replacement (0%) was the best . There was no Significant change in diet consumption at all ages except for the age of 30 days in which the hybrid Ross has consumed more Significant diet (P<0.05) comparing to hybrid Cobb and the percentage of replacement (0%) was less significant in diet consumption . As for feed gain conversion , there were no Significant differences between the two hybrids at all ages but at level (P<0.05) in the percentage of replacement between the age of 15 and 30 days at level (P<0.01) . The percentage of replacement (0%) was the best but the treatments have not shown any Significant differences except for the age of 20 days at level (P<0.01) . The treatments 6 and 2 were the most Significant in comparison among others . Concerning other features , there was no Significant difference between the two hybrids as well as the treatments . Only Significant differences have appeared (P<0.01) regarding the percentage of replacement for Carcass, chest, thigh, back and neck weight . The results have finally shown that the percentage of replacement (0%) was highest in numbers .