Effects of dietary supplementation withGynura procumbens(Merr.) on egg yolk cholesterol, excreta microflora and laying hen performance

Abstract

1. The present study investigated the effects of dietary supplementation with Gynura procumbens on egg yolk and serum cholesterol and triglycerides, excreta microflora, laying performance and egg quality. 2. A total of 160 Hy-Line Brown layers (45 weeks old) were randomly assigned into 4 treatments on the basis of laying performance. Each treatment had 4 replicates with 10 birds each. 3. Dietary treatments were basal diet supplemented with 0 (control), 2.5, 5.0 and 7.5 g/kg diet G. procumbens during 56-d feeding period. 4. Serum (d 21, 42 and 56) and egg yolk (d 28, 42 and 56) cholesterol and triglycerides concentrations were linearly reduced with increasing dietary concentrations of G. procumbens. 5. Increasing dietary concentrations of G. procumbens linearly reduced the excreta total anaerobic bacteria (d 28), Clostridium sp. and Escherichia coli (d 28 and 56) populations. 6. Overall egg production and egg mass were linearly increased, and overall feed efficiency was linearly improved with increase in dietary G. procumbens. 7. Dietary increasing concentrations of G. procumbens linearly improved egg yolk colour (d 28 and 56) and breaking strength of eggs (d 56). 8. The results obtained in the present experiment indicate that dietary supplementation with G. procumbens could reduce the egg yolk cholesterol, suppresses harmful excreta microflora and improves layers performance.

Overview of Herbal Therapy with Leave of Gynura procumbens (Lour.) Merr

“…and Escherichia coli. 35 Another experiment with weanling pigs show that Aqueous Hypoglycaemic effect 21 Hepato protective effect 45 "essential oils" alpha-pinene, 3-carene, limonene 13 Anti-inflammatory 13 Anti-nociceptive effects 13 Methanol Hepatoprotetive effect 44 Methanol →Ethyl Acetate…”

Effect of an ethanolic extract from Enterolobium cyclocarpum pods on feed intake, egg production, and plasma lipid profile of laying hens

“…Aydin, Karaman, Cicek & Yardibi (2008) reported a significant reduction of cholesterol in the egg yolk of laying hens fed diets with seeds of Nigella sativa. Similarly, the inclusion of Gynura procumbens or olive leaf (Olea europea) in diets reduced egg yolk cholesterol in laying hens (Cayan & Erener, 2015;Lokhande et al, 2014) due to the secondary metabolites of these plants (v.gr. saponins).…”

“…Some studies have reported that saponins from Karaya (Sterculina urens) (Afrose, Hossain, Maki & Tsujii, 2010a), Yucca schidigera (Wang & Kim, 2011), Ilex latifolia (Feng et al, 2015), and Alfalfa (Medicago sativa) (Fan, Du, Zhou, Shi & Wang, 2015;Liang et al, 2015) reduce egg and blood plasma cholesterol, and they regulate the expression of genes associated to cholesterol metabolism. According to many of these studies, there is a close relationship between plasma and egg cholesterol in laying hens, because egg cholesterol decreases as plasma cholesterol decreases (Afrose, Hossain, & Tsujii, 2010b;Fan et al, 2015;Lokhande et al, 2014).…”