Journal of Animal Production, Print ISSN: 2008-6776., Online ISSN: 2382-994X

Effect of malt extract on growth performance, nutrient digestibility, and cecal microflora in broilers

Document Type : Research Paper

Authors

Mohammad Reza Rezvani 1
mehdi Abbasi 2
Shahin Sabet 3

1 Animal Science Department, School of Agriculture, Shiraz Uni

2 Graduate Student in Animal Science Department, Shiraz Uni, Shiraz, Iran

3 Graduate Student in Animal Science Department, Birjand Uni, Birjand, Iran

https://doi.org/10.22059/jap.2021.294276.623484
Abstract
This study aimed to investigate the effect of malt extract on growth performance, nutrient digestibility, and cecum microbial population of broilers in grower, finisher, and whole periods. For this experiment, 256 pieces of mixed female and male day-old Cobb 500 broiler chicks were used in a completely randomized design with 4 treatments, 8 replications, and 8 birds per replicate from 14 to 49 days of age. Experimental treatments included a basal diet without additive (control) and a basal diet containing levels of 0.1, 0.2, and 0.3 percent malt extract. The effect of treatments on growth performance, intestinal length and weight, nutrient digestibility, and the number of Escherichia coli and Lactobacillus in cecum were measured. The results showed that in grower, finisher, and whole periods, the addition of malt extract at the level of 0.3 percent, without affecting feed intake, produced the highest daily weight gain and lowest feed conversion ratio compared to other treatments (P≤0.05). Also, the diet containing 0.3 percent of malt extract improved the digestibility of dry matter, protein, and fat and decreased the number of Escherichia coli in the cecum (P≤0.05). According to the results, 0.3 percent malt extract can be used in the diet of broilers to improve the performance and health of gastrointestinal tract.

Keywords

Cobb Broilers
Escherichia coli
Gastrointestinal tract
Growth
Malt extract
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Journal of Animal Production, Print ISSN: 2008-6776., Online ISSN: 2382-994X
Volume 23, Issue 3
Summer 2021
Pages 471-479

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