Effects of fermented feed on growth performance, nutrient metabolism and cecal microflora of broilers

Abstract

Objective: To investigate the effects of enzyme-bacteria co-fermented feed on broilers, the basal diet (BF) was pretreated by microbial enzyme co-fermentation, and then different proportions of BF 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 BF, and groups 1 to 4 were treated with dried fermented feed (DFF) instead of 10%, 15%, 20%, and 25% the BF, and group 5 was treated with wet fermented feed (WFF) instead of 10% the BF, 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 to 42 days and 1 to 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.

Effects of fermented feed on growth performance, serum biochemical indexes, antioxidant capacity, and intestinal health of lion-head goslings

“…Firmicutes are involved in the digestion of various types of nutrients, promoting the fermentation of polysaccharides in the intestine and improving the health of the host (62). Li et al (65) reported the addition of FF in diet and found that cecal microbiota of broilers was dominated by Firmicutes and Bacteroidota. Yan et al (14) reported addition of FF in diet of geese and found that cecal microbiota of the 7.5% FF group was dominated by Firmicutes and Bacteroidota, and the relative abundance of the former is relatively low and the relative abundance of the latter is relatively high, compared with the control group.…”

Effects of dietary Astragalus membranaceus and Codonopsis pilosula extracts on growth performance, antioxidant capacity, immune status, and intestinal health in broilers

“…The gut microflora is crucial for regulating intestinal motility, immune homeostasis, and nutrient absorption ( 58 ). Furthermore, research has shown that intestinal flora can assist the host in protecting against pathogens and inflammatory bowel diseases, thus enhancing the host’s digestive system health ( 59 ). Chao 1 is a measure of the community richness.…”

The Effects of Unconventional Feed Fermentation on Intestinal Oxidative Stress in Animals

“…Fermented feed plays a key role in antioxidant activity [ 22 , 106 , 107 ] as it is rich in antioxidants (e.g., vitamin C, vitamin E, and polyphenols), and some microbial metabolites produced during fermentation also have an antioxidant capacity, which helps maintain the redox balance in the body [ 108 ]. In addition, other significant advantages of fermented feed are that it improves the utilization rate of feed nutrients, effectively improves the nutritional level of animals, and enhances the ability to resist oxidative stress [ 109 , 110 ]. Indeed, the use of fermented feed not only provides antioxidants and microbial metabolites, but also promotes the absorption of nutrients, which is an important breeding strategy that is beneficial to animal health and physiological balance.…”