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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present study aimed to investigate the effect of reduced dietary crude protein (CP) and supplementation of threonine on feed efficiency in commercial broilers (CB). A total of 480 broiler chicks randomly assigned to 4 dietary treatments following completely randomized design, each treatment had six replications of 20 birds each. The control dietary formulation was prepared to meet requirement of nutrients and amino acids as per the NRC (1994). The dietary CP was reduced by 1, 2 and 3 percent unit to the standard recommendation in other 3 treatments, the treatment with reduced CP level were supplied with synthetic threonine to need desired level of threonine as in control and all amino acids were met as per the NRC (1994) by supplying the limiting amino acids. From overall study it was indicated that the weekly cumulative feed consumption was similar in 1 percent unit CP reduced diet with L-threonine supplementation compare to control diet but it was significantly decreased in 2 and 3 percent unit reduced levels of CP, whereas the weekly cumulative feed conversion ratio (FCR) significantly higher in 2 and 3 percent unit CP reduced diets, but FCR was significantly lower and better in 1 percent unit CP reduced diet with L-threonine supplementation and it was simillar to that of control diet.
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