Biofortification of hens’ eggs with microelements by innovative bio‐based dietary supplement

Abstract

New bio-based dietary supplement with micronutrients for livestock was elaborated.The new preparation was tested on laying hens to determine the influence of new biological feed additives on the level of trace elements in egg content. The diet of laying hens (Hy-Line Brown, 30 weeks of age) was supplemented with soya bean meal enriched with Cu(II), Zn(II), Fe(II) and Cr(III) by biosorption. A total of 150 laying hens were divided into five groups: one control and four experimental. In the control group, microelements were supplemented in the inorganic form, whereas in experimental groups, Cu, Zn, Fe and Cr were replaced with soya bean meal enriched with a given microelement ion. The feeding experiment was conducted for 12 weeks and was divided into three series. The results showed that adding the new feed additives to the diet of laying hens had an impact on microelement transfer to eggs, in particular with increased dosing. Eggs were biofortified with iron, zinc and copper and to a lesser extent with chromium. The microelements were accumulated primarily in the albumen because soy protein was the carrier of micronutrient ions in hens' diet.Transfer of trace elements to eggs was not linearly dependent on the dosage of biologically bound microelements in the diet. K E Y W O R D S biofortification, egg trait, laying hens, microelements, soya bean meal How to cite this article: Witkowska Z, Świniarska M, Korczyński M, et al. Biofortification of hens' eggs with microelements by innovative bio-based dietary supplement. J Anim Physiol Anim Nutr. 2019;103:485-492. https://doi.

Selenium and Nano-Selenium Biofortification for Human Health: Opportunities and Challenges

“…Malnutrition and micronutrient deficiencies have become a global issue and improving the nutrition of millions of people around the world may be achieved using staple crops and appropriate agronomic practices [105,131]. In the past biofortification mainly involved the main cereal crops (e.g., rice, maize, and wheat) and then moved to include pulse crops as well as some animal-based foods such as milk and cheese [132], meat [133], and eggs [134]. The Se-biofortification of cereal crops depends on Se forms, method of application, the efficacy of Se-fertilizers [118], the time of application, and plant growth stage [83,135].…”

The Effect of Dietary Humic Preparations on the Content of Essential and Non-Essential Chemical Elements in Hen Eggs

“…Microelements accumulated mainly in the albumen. Transfer of trace elements to eggs was not linearly dependent on the dose of biologically bound microelements in the diet [ 27 ]. This was also confirmed in studies by Santoso and Fenita [ 36 ], who examined the effect of the addition of katuk ( Sauropus androgynus ) leaf extract (SALE) on the production parameters of laying hens (Decalb Warren) and the quality and chemical composition of their eggs.…”

“…The results obtained in this study do not fully answer whether hen eggs could be enriched with various elements. Their biotransfer to the albumen and the yolk is limited, as some authors point out [ 8 , 21 , 23 , 27 ]. This problem is convoluted by complex relationships between chemical elements (agonistic, antagonistic and synergistic interactions), which hinder the unequivocal interpretation of results [ 40 , 41 ].…”

“…Evidence suggests that the mineral composition of feed mixtures, the origin and quality of nutrients and their chemical form and bioavailability have the greatest importance in the accumulation of essential and non-essential chemical elements in the hen’s eggs [ 11 , 24 , 25 , 26 , 27 ]. In recent years, many innovative feed additives have been used in laying hen nutrition.…”

Valorization of Biomass Residues by Biosorption of Microelements in a Closed-Loop Cycle

“…Valorization of plant residue of pharmaceutical, cosmetic, and food origin is a new opportunity for a circular economy enabling biomass used as a food supplement for livestock production [2,3]. A good example comes from a soybean meal commonly used in livestock farming as a source of assimilable protein.…”