Effects of Kluyveromyces marxianus Isolated from Tibetan Mushrooms on the Plasma Lipids, Egg Cholesterol Level, Egg Quality and Intestinal Health of Laying Hens
AUTOR(ES)
Zhong, S, Liu, H, Zhang, H, Han, T, Jia, H, Xie, Y
FONTE
Rev. Bras. Cienc. Avic.
DATA DE PUBLICAÇÃO
2016-06
RESUMO
ABSTRACT The effects of the Kluyveromyces marxianus M3 strain, isolated from Tibetan mushrooms, on plasma lipids, egg cholesterol level, egg quality, and intestinal health of laying hens were evaluated. In total, 160 Beijing fatty laying hens (43 weeks old) were divided into four groups and fed a basal diet supplemented with 0%, 0.1%, 0.3%, or 0.5% freeze-dried K. marxianus M3 powder for four weeks. The results showed that yeast supplementation reduced serum total cholesterol (TC), triglyceride (TG), low density lipoprotein-cholesterol (LDL-C), and very low density lipoprotein-cholesterol (VLDL-C) levels (p<0.01), and increased serum high density lipoprotein-cholesterol (HDL-C) level (p<0.05). Moreover, regardless of K. marxianus M3 dietary addition level, the cholesterol content of the eggs decreased by more than 26%. When0.3% yeast was supplemented, significant differences were found in the egg weights, shell strength, albumen height, Haugh unit and nutrient content of the eggs (p<0.01). Finally, 0.3% yeast supplementation improved the intestinal flora conditions of the hens by decreasing the Salmonella and Staphylococcus aureus counts (p<0.01) and increasing the Bifidobacterium count (p<0.01). The results in this work demonstrated that yeast culture supplementation to the diets deceased the serum and egg yolk cholesterol, and increased egg quality.
Documentos Relacionados
- Hypocholesterolemic effects of Kluyveromyces marxianus M3 isolated from Tibetan mushrooms on diet-induced hypercholesterolemia in rat
- Effects of different dietary vitamin combinations on the egg quality and vitamin deposition in the whole egg of laying hens
- Effects of different levels of expanded perlite on the performance and egg quality traits of laying hens
- Effects of boric acid and humate supplementation on performance and egg quality parameters of laying hens
- Dietary Effects of Natural Polyphenol Antioxidant on Laying Performance and Egg Quality of Laying Hens Fed Diets with Oxidized Oil