Nutritional Evaluation of Selenium-methionine Nanocomposite as a Novel Dietary Supplement for Laying Hens

Abstract

Recently, nanotechnology introduced new modality in the field of broiler nutrition through the benefits of the unique properties at the nanoscale such as increasing surface area, high absorption and lower toxicity. However, there is insufficient available data about the utilization of nano compounds in laying hens. Wang (2009) found that nano-Selenium increased muscle selenium concentration in broilers than sodium selenite. Therefore, the purpose of this study was to assess the nutritional effects of Seleni- Research ArticleAbstract | The auspicious potential of nanotechnology is to fabricate and adopt nanoscale approaches for nutritional problems, at the scale of ∼1-100 nm. The present study evaluates the effects of selenium-methionine nanocomposite (Nano Se-Met) levels as a novel selenium supplement compared to organic selenium-enriched yeast (SY) and sodium selenite (SS) on laying hens' performance, egg quality, egg selenium concentrations, fatty acids and thiobarbituric acid contents of whole egg. One hundred and five Lohmann laying hens of 22 weeks old were randomly assigned to seven groups of three replicates. The control group was fed a basal diet with 0.3 mg/Kg SS and the other six groups were fed basal diet supplemented with 0.1, 0.3 and 0.5 mg/kg diet of Nano Se-Met or SY, respectively. Performance data were evaluated for 14 weeks laying period from 23 to 36 weeks of age and the end of the experimental period, egg analysis tests were performed. The results showed selenium source had insignificant effect (p>0.05) on productivity and egg quality parameters. On the other hand, the average egg weight and egg mass were increased significantly (p<0.05) with increasing dietary selenium level within each source. Also selenium concentration in albumin and yolk were increased significantly (p<0.05) for group SY (1.11 and 2.77 mg/kg respectively) followed by a decreasing order by groups fed on Nano Se-Met (0.68 and 1.44 mg/kg) and control-SS (0.0 and 0.12 mg/kg), respectively. The concentrations of selenium in albumin and yolk were significantly (p<0.05) higher for groups fed 0.5 mg/kg level of selenium within each source.

The Impact of Different Dietary Forms (Mash, Crumble and Pellets) on Some Growth Traits and Carcass Characteristics of Broilers

“…Nutrient digestibility may have been increased by pelleting in contrast to mash rations (Zelenka, 2003). Some most recent studies have used advanced techniques like nanotechnology that were also based on the same hypothesis as we have adopted in our study (Salah-Eldin et al, 2015). Greenwood et al (2005) demonstrated a high rate of growth and increased digestible lysine requirements for optimal WG and feed efficiency in pellet-fed broilers compared with mash-fed broilers from 16 to 30 d of age.…”

In vitro cytotoxicity, macromolecular interaction and antioxidant potential of dual coated selenium nanoparticles

“…The method followed was modified using S. Malhotra et al, T.A.S. Eldin and U. Luesakul et al methods 7,10,11 . Biomaterial coating of Se NPs was conducted in‐situ; the first layer of coating was methionine (Met) used in a 1:5 ratio to the precursor volume.…”

“…The free radical scavenging ability of Se-Met-Fa NPs was studied by DPPH assay using the methods of S. Menon et al 6,15 with modifications. Different concentrations of Se-Met-Fa NPs were prepared (10,20,30,40,50, and 100 μg/ml). Ten milliliters of 0.1 mM DPPH solution was prepared in methanol, and 1 ml was added to each Se-Met-Fa NP s concentration.…”

Applications of Nanotechnology in Animal Nutrition: A Review

“…Salah et al [32] reported that egg yolk stored at room temperature for 15 days from hens receiving nano-selenium has higher activity of glutathione peroxidase and lower malondialdehyde content. The addition of nano selenium also improved the fatty acid profile in eggs by reducing the ratio of saturated to unsaturated fatty acids and also it significantly decreased the level of total lipids and total cholesterol, as well as increased the level of its high-density lipoprotein fraction in egg yolk and plasma of laying hens.…”