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Anim Biosci > Accepted Articles
https://doi.org/10.5713/ab.21.0333    [Accepted] Published online October 29, 2021.
Effects of fermented feed on growth performance, nutrient metabolism and cecal microflora of broilers
Jiantao Li1  , Lijuan Tao1  , Rong Zhang1  , GuiQin Yang1,* 
College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning Province, 110866, China
Correspondence:  GuiQin Yang, Tel: 17824937876, Fax: none, Email: 804124177@qq.com
Received: 25 July 2021   • Revised: 30 August 2021   • Accepted: 21 September 2021
Abstract
Objective
To investigate the effects of enzyme-bacteria co fermentated feed on broilers, the basal diet was pretreated by microbial enzyme co fermentation, and then different proportions of basal diet were replaced to study its effects on growth performance, nutrient metabolism and cecal microflora of broilers.
Methods
Four hundred and eighty 1-day-old broilers were randomly divided into 6 groups. The control group was fed with basal diet, and groups 1 to 4 were treated with fermented feed at 10%, 15%, 20% and 25% of the basal diet, and group 5 was treated with fermented wet feed instead of 10% of the basal diet, named BF, 10% DFF, 15% DFF, 20% DFF, 25% DFF, and 10% WFF, respectively. The trial period was 42 days.
Results
The results showed that the average daily feed intake and average daily gain of 10%DFF, 15%DFF and 10%WFF groups were significantly higher than those of the control group at 22-42 days and 1-42 days (P<0.05). Except for 10%DFF group, Firmicutes of all treatment were higher than that of control group. The Bacteroides of each treatment group were lower than that of the control group (P>0.05). At the same time, the nutrient apparent metabolic rate and cecal microbial abundance of each treatment group had an increasing trend (P>0.05).

Conclusion

In conclusion, the feed fermented by enzyme and bacteria had a potential promoting effect on the growth performance and nutrient digestibility of broilers.
Keywords: Broiler; Fermented Feed; Growth Performance; Microflora; Nutrient Metabolism


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