The Dietary Effects of Fermented Chlorella vulgaris (CBT) on Production Performance, Liver Lipids and Intestinal Microflora in Laying Hens

Abstract

Fermented Chlorella vulgaris CBT® was evaluated for its effects on egg production, egg quality, liver lipids and intestinal microflora in laying hens. One hundred and eight Hy-line Brown layers (n = 108), 80 wk of age, were fed a basal diet supplemented with CBT® at the level of 0, 1,000 or 2,000 mg/kg, respectively for 42 d. Egg production was measured daily and egg quality was measured every two weeks. Five eggs from each replicate were collected randomly to determine egg quality. Egg production increased linearly with increasing levels of CBT® supplementation (p<0.05), although there was no significant effect of treatment on feed intake. Egg yolk color (p<0.001) and Haugh unit (p<0.01) improved linearly with increasing dietary CBT®. Hepatic triacylglycerol level was linearly decreased with increasing dietary CBT® (p<0.05). The supplemental CBT® resulted in linear (p<0.001) and quadratic (p<0.01) response in population of cecal lactic acid bacteria. In conclusion, fermented Chlorella vulgaris supplemented to laying hen diets improved egg production, egg yolk color, Haugh unit and positively affected the contents of hepatic triacylglycerol and the profiles of cecal microflora.

Effect of yeast with bacteriocin from rumen bacteria on laying performance, blood biochemistry, faecal microbiota and egg quality of laying hens

“…The results presented in Table show a striking effect of hen age on egg quality parameters; these results are consistent with those of Zheng et al. (). The effects of yeast supplementation on egg cholesterol were not consistent.…”

“…According to the laying hen faecal lactobacilli count data in this study (5.78 to 8.05 log CFU/g), the count result was lower than the caecal sample result (7.1 to 8.3 log CFU/g) reported by Zheng et al. (). However, the laying hen faecal lactobacilli count data from previous studies of Choe et al.…”

“…Zhang and Kim (2014) also indicated that the higher caecal lactobacillus count could suppress the growth of Clostridium and E. coli in broilers. According to the laying hen faecal lactobacilli count data in this study (5.78 to 8.05 log CFU/g), the count result was lower than the caecal sample result (7.1 to 8.3 log CFU/g) reported by Zheng et al (2012). However, the laying hen faecal lactobacilli count data from previous studies of Choe et al (2012) and Loh et al (2007) were similar to the present study.…”

Effect of carbon sources on growth and lipid accumulation of newly isolated microalgae cultured under mixotrophic condition

“…Therefore, the types and concentrations of carbon and nitrogen sources are critical in enhancing the lipid productivity of biodiesel production (Jeon et al, 2006). Some microalgal species, including the Chlorella (Zheng et al, 2012), Chlamydomonas (Chen and Johns, 1994), and Nannochloropsis species (Hu and Gao, 2003), have been reported to accumulate amounts of lipid in cells under various culture conditions. However, there are few studies on the effects of carbon resources, especially, the effects of carbon sources on the biomass production and lipid component of algae under mixotrophic cultivation (Andrade and Costa, 2007;Bouarab et al, 2004).…”

The Usefulness of Microalgae Compounds for Preventing Biofilm Infections

“…In this sense, the freshwater green microalgae Chlorella vulgaris produces a high variety of bioactive compounds with important nutritional qualities and interesting therapeutic properties. Studies using Chlorella mainly demonstrated its antitumoural effects, cancer chemoprevention properties, anti-inflammatory activity, antioxidant activity, immune system activation, antimicrobial, and antibiofilm activity [73].…”