Nutritional Evaluation of Locust Meal as a Protein Source in Broiler Diets

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Date
2015-06-22
Authors
Salim Gibreel, Ahmed
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Publisher
UOFK
Abstract
The present study was conducted to evaluate the locust meal as a protein supplement in broiler diet and to detect the effect of feeding locusts killed by insecticide Dursban on the apparent performance of broilers. Chemical analysis of locust revealed high (85%) crude protein contents with low (1.97%) lysine. Nine diets based on sorghum grains with protein supplements from locust, super-concentrate, sesame and groundnut were formulated to meet the NRC recommendations. With super-concentrate as control, diets were approximately iso-caloric iso-nitrogenous differing only in the level of locust meal. Levels were designated as 0.0, 25, 50, 75 and 100% for both sprayed (insecticide) and non-sprayed (manually captured) locust meals. Each diet was fed to 40 unsexed (Bovans) broiler chicks in four replicates for seven weeks. Parameters assessed were performance, digestibility and carcass quality attributes. Performance showed a decreasing trend as the level of locust meal increased. In addition overall results indicated two general findings: Firstly; locust protein had insignificant (P<0.05) depressing effect on feed intake and failed to replace super-concentrate at higher levels (50-100%) and secondly spraying improved performance at the low level (25%) but it had negative effect on feed intake at the highest level (100%). Results of digestibility and carcass characteristics showed no difference between treatments. Based on the results of this study, non-supplemented locust meal proved to have good potential as protein supplement for broilers. Moreover, results suggested that, locust killed by insecticide Dursban (Organophosphorus) appeared to have no effect on the final product (Carcass).
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Keywords
Nutritional Evaluation,Locust Meal ,Protein Source,Broiler Diets
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