AbstractThe study was conducted to investigate the effect of dietary supplementation of Bacillus subtilis and Bacillus clausii based probiotics alone or in combination on performance in Jabalpur colour birds. Atotal of two hundred forty, 30 weeks age laying hens Jabalpur colour bird were selected from the poultry farm, adhartal Jabalpur. These layers were randomly distributed to five replicates of six layers each and allotted to 8 dietary treatments. The standard layer diet (T0) was formulated as per ICAR (2013) specification. T1: Control diet + antibiotic (avilamycin@100g/ ton of feed) T2: Control diet + Bacillus subtilis (2× 109 cfu/g) @250g/ton of feed) T3: Control diet + Bacillus subtilis (2× 109 cfu/g) @500g / ton of feed) T4: Control diet + Bacillus clausii (2× 109 cfu/g) @250g /ton of feed) T5: Control diet + Bacillus clausii (2× 109 cfu/ g) @500g / ton of feed) T6: Control diet + Bacillus subtilis (125g) + Bacillus clausii (125g) 2× 109 cfu/ g) @250g/ ton of feed) T7: Control diet + Bacillus subtilis (250g) + Bacillus clausii (250g) (2× 109 cfu/ g) @500g/ ton of feed) respectively for 12 weeks of experimental period. Daily egg production recorded, there by hen day production was calculated. The result of 12 weeks (30th to 42nd weeks) of present study indicated that supplementation of Bacillus subtilis in combination with Bacillus clausii in layer diet significantly (p<0.05) improved overall production performance egg production and hen day production in Jabalpur colour birds.
Singour et al. (Wed,) studied this question.
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