What does this research mean for the field?

Supplementing an energy-reduced diet with a multi-carbohydrase enzyme complex and direct-fed microbials at 400 ppm improves live performance during the grower phase and prevents reductions in carcass weights in broilers. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To determine whether combining a multi-carbohydrase enzyme complex with direct-fed microbials recovers performance and carcass yields in broilers fed an energy-reduced diet.

August 28, 2026PoultryOpen Access

The Effects of a Multi-Carbohydrase Enzyme Complex and Direct-Fed Microbial Supplementation to Energy-Reduced Diets on Broiler Performance and Carcass Traits

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To determine whether combining a multi-carbohydrase enzyme complex with direct-fed microbials recovers performance and carcass yields in broilers fed an energy-reduced diet.
A total of 1,750 male Cobb broilers were assigned to 7 dietary treatments across 70 pens (10 pens per treatment, 25 birds per pen) using a complete randomized design over a 35-day period.
Treatments comprised a positive control (PC), a negative control with reduced energy (−132 kcal/kg; NC), and five NC variants supplemented with an enzyme complex (125 ppm) and varying levels or types of direct-fed microbials (300 to 500 ppm).
Live performance parameters, feed conversion ratio (FCR), weight-corrected FCR, and day 36 processing yields (5 birds per pen) were measured and evaluated.
No significant differences were observed across treatments for overall day 0–35 body weight, feed consumption, mortality, or full-period FCR and weight-corrected FCR (p > 0.05).
During the grower phase and at day 28, FCR was significantly lower in the PC and the 400 ppm direct-fed microbial group compared to the NC, while the NC experienced significantly reduced carcass, breast, and leg quarter weights relative to all other treatments (p < 0.05).
Carcass yields were significantly higher in the PC and 300 ppm direct-fed microbial group compared to the NC (p < 0.05), whereas breast and leg quarter yields showed no significant differences among treatments (p > 0.05).

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Implication

Randomized trial reveals that enzyme and microbial supplements maintain growth and carcass yield in broilers fed energy-reduced diets, indicating improved feed efficiency.

Cite This Study

Jiral et al. (2026) studied this question.

synapsesocial.com/papers/6a914613d15324a1df3a9701 https://doi.org/10.3390/poultry5050059

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Implication

Randomized trial reveals that enzyme and microbial supplements maintain growth and carcass yield in broilers fed energy-reduced diets, indicating improved feed efficiency.

The Effects of a Multi-Carbohydrase Enzyme Complex and Direct-Fed Microbial Supplementation to Energy-Reduced Diets on Broiler Performance and Carcass Traits

Key Points

Discussion

Implication

Cite This Study

The Effects of a Multi-Carbohydrase Enzyme Complex and Direct-Fed Microbial Supplementation to Energy-Reduced Diets on Broiler Performance and Carcass Traits

Key Points

Discussion

Implication

Cite This Study

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