Effects of Dietary Flammulina velutipes Mycelium on Broiler Chick Performance, Pathogenic Bacterial Counts in Caecal Contents and Amount of NH₃in Excreta

Abstract

The purpose of this study was to evaluate the effects of dietary Flammulina velutipes mycelium (FVM) on broiler chick performance, pathogenic bacterial (E. coli, Salmonella) counts in caecal contents and amount of NH3 in excreta. Ninety-six broiler chicks (HanHyup No. 3, Korea) were divided into four groups: 1) Control (basal diet), 2) T1 (supplemented with 1% FVM), 3) T2 (3% FVM), and T3 (5% FVM), and rose for 7 weeks. In results, there were no significant differences among treatments in weight gain, feed intake, feed efficiency and carcass yield. However, giblets were significantly increased in FVM treatments compared with control group (p<0.05). The number of Salmonella in caecum was significantly decreased in FVM treatments compared with control group (p<0.05). The number of E. coli was decreased in T2 but increased in T1 and T3 compared with control group. The emission of fecal NH3 gas was significantly decreased in accordance with increasing the feeding level of FVM (p<0.05). In conclusion, our data indicated that the supplementation of high level of FVM could inhibit the Salmonella in caecum and reduce the emission of fecal NH3 gas. Therefore, FVM at 5% level could be added in the diet of broiler chicks.

Dietary inclusion of mushroom (Flammulina velutipes) stem waste on growth performance and immune responses in growing layer hens

“…reported that fermented F. velutipes mycelium had no significant effects on feed intake and FCR in laying hens. In addition, Lee et al . stated that 5% F. velutipes mycelium did not improve feed intake in broilers, which was similar to the results of the present study with respect to feed intake.…”

Effect of golden needle mushroom (Flammulina velutipes) stem waste on laying performance, calcium utilization, immune response and serum immunity at early phase of production

“…In addition Na et al [ 22 ] reported that inclusion of F. velutipes media at 5% to 10% in layer diets had no significant effects on egg production, egg weight, egg mass, and FCR. Lee et al [ 18 ] reported that higher levels up to 5% F. velutipes mycelium did not improve feed intake in broiler which was similar with the current study for feed intake. Unmarketable eggs were significantly lower in 4% FVW and 6% FVW fed groups, which was associated with higher calcium deposition in egg shell with dietary inclusion of FVW in the experimental groups.…”

“…Demand for applying medicinal and functional natural herbs in chicken rations is increasing to improve health status as well as production performance after the ban of antimicrobial growth promoters (antibiotics) in different countries [ 17 ]. The estimated value of DM, crude protein (CP), crude fiber (CF) in FVW were mostly close to previously reported values [ 18 , 19 ] but EE, calcium and phosphorus were lower than the published values (EE, 18.4 to 73.3 g/kg; calcium 4.6 to 11.8 g/kg; and phosphorus 8.8 to 9.4 g/kg) [ 19 , 20 ]. These differences were associated with effects of soil, cultivation methods and environmental factors.…”

Effects of Flammulinavelutipes Stem Base on Microflora and Volatile Fatty Acids In Caecum of Growing Layers under Heat Stress Condition

“…These findings were similar to Zeng et al (2016), who reported that the diversity of cecal microflora in broilers was significantly higher in FVS supplemented diets than in the control. Some past studies found that FVS could increase the beneficial bacteria and could decrease the harmful bacteria (Lee et al, 2012;Lee et al, 2014). In this study, the FVS groups did not contain the pathogenic species Helicobacter pullorum (Steinbrueckner et al, 1997) and Alistipesfinegoldii (Dziarski et al,2016) which were found in the HS group only.…”

“…Laying hens fed with FVS (3-5%) could reduce the pathogenic bacteria like Salmonella spp., E. coli and Clostridium spp., as well as increase the number of beneficial bacteria of Lactobacillus spp., and Bifidobacterium spp. (Lee et al, 2012;Lee et al, 2014). However, there was no previous study on the effect of Flammulinavelutipess tem base on animals submitted to heat stress.…”