Comparison the Zn-Threonine, Zn-Methionine, and Zn Oxide on Performance, Egg Quality, Zn Bioavailability, and Zn Content in Egg and Excreta of Laying Hens

Esfahani, Mohammadreza Kolahdouz; Moravej, Hossein; Ghaffarzadeh, Mohammad; Paghaleh, Gholam Ali Nehzati

doi:10.1007/s12011-020-02141-8

Cited by 23 publications

(20 citation statements)

References 61 publications

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“…The concentration of feed phytate is approximately 0.8~2.5 g/kg [ 21 ]. Zn-Met, organic metal chelates composed of Zn chelated with Met in coordinate covalent bonds, chelate is stable in the small intestine, may minimize the formation of Zn-phytate complex and allow more Zn to be absorbed by the epithelial cells in the small intestine [ 22 ]. In contrast, inorganic form, ZnSO 4 , is easily dissociated in the stomach and intestine, therefore, Zn-phytate complex is formed, rendering a lower absorption of Zn [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

Zinc Supplementation Forms Influenced Zinc Absorption and Accumulation in Piglets

Liu

Azad

et al. 2020

Animals

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The study aimed at determining the effect of different zinc (Zn) supplementation forms on Zn accumulation, activities of Zn-containing enzymes, gene expression of metallothionein (MT), and Zn transporters in piglets. Eighteen piglets were randomly divided into three groups: (a) a basal diet supplemented with 150 mg/kg Zn from Zn methionine (Zn-Met) in the feed (Zn-Met group), (b) a basal diet supplemented with 150 mg/kg Zn from Zn sulfate (ZnSO4) in the feed (ZnSO4, feed group), and (c) a basal diet supplemented with the same dose of Zn as in ZnSO4,feed group but in water (ZnSO4, water group). The results showed that Zn-Met added in feed and ZnSO4 dissolved in drinking water significantly improved (p < 0.05) the Zn concentration in liver and jejunum and the apparent digestibility of Zn in comparison with the ZnSO4 added in feed. In addition, dietary Zn supplementation as Zn-Met significantly increased (p < 0.05) the activity of alkaline phosphatase (AKP) in the jejunum of piglets in comparison with the ZnSO4, feed group. Furthermore, the Zn-Met and ZnSO4, water groups showed an improved total superoxide dismutase activity (T-SOD) in the ileum as compared to the ZnSO4, feed group. Meanwhile, the qPCR and western blot results showed that Zn-Met and ZnSO4 dissolved in drinking water increased the expression of MT in the jejunum in comparison with the ZnSO4 added in the piglets’ feed. However, different Zn supplementation forms had no effect on the mRNA expressions of Zip4 and ZnT1 transporters. In conclusion, Zn-Met added in feed and ZnSO4 dissolved in drinking water had higher bioavailability in piglets.

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Section: Discussionmentioning

confidence: 99%

Zinc Supplementation Forms Influenced Zinc Absorption and Accumulation in Piglets

Liu

Azad

et al. 2020

Animals

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“…Qi et al (154) reported that zinc-methionine enhanced albumen quality via improved T-AOC, decreased MDA level, promoted methionine synthesis, threonine and glutathione metabolism and protein metabolism. Inclusion of zinc-methionine (Zn-Met) complexes (140,155) and zincmethionine hydroxyl analog chelate (156) enhanced albumen HU values. (157) reported that Zn-Met improved both albumen percentage and HU.…”

Section: Trace Elements and Vitaminsmentioning

confidence: 99%

“…(157) reported that Zn-Met improved both albumen percentage and HU. Also, Zn-Met mitigated the adverse effect of increasing age on HU values due to watery albumen (155). Besides, improving albumen quality, nutritive contents of eggs are improved via biofortification of eggs with increased zinc content (154,158).…”

Section: Trace Elements and Vitaminsmentioning

confidence: 99%

Natural Products of Plants and Animal Origin Improve Albumen Quality of Chicken Eggs

et al. 2022

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Albumen quality is recognized as one of the major yardsticks in measuring egg quality. The elasticity of thick albumen, a strong bond in the ovomucin-lysozyme complex, and excellent biological properties are indicators of high-quality albumen. The albumen quality prior to egg storage contribute to enhance egg’s shelf life and economic value. Evidence suggests that albumen quality can deteriorate due to changes in albumen structure, such as the degradation of β-ovomucin subunit and O-glyosidic bonds, the collapse of the ovomucin-lysozyme complex, and a decrease in albumen protein-protein interaction. Using organic minerals, natural plants and animal products with antioxidant and antimicrobial properties, high biological value, no residue effect and toxicity risk could improve albumen quality. These natural products (e.g., tea polyphenols, marigold extract, magnolol, essential oils, Upro (small peptide), yeast cell wall, Bacillus species, a purified amino acid from animal blood, and pumpkin seed meal) are bio-fortified into eggs, thus enhancing the biological and technological function of the albumen. Multiple strategies to meeting laying hens’ metabolic requirements and improvement in albumen quality are described in this review, including the use of amino acids, vitamins, minerals, essential oils, prebiotics, probiotics, organic trace elements, and phytogenic as feed additives. From this analysis, natural products can improve animal health and consequently albumen quality. Future research should focus on effects of these natural products in extending shelf life of the albumen during storage and at different storage conditions. Research in that direction may provide insight into albumen quality and its biological value in fresh and stored eggs.

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“…It has been declared that zinc influences appetite because anorexia is one of the symptoms of zinc deficiency (Behjatian Esfahani et al, 2021).…”

Section: Production Performancementioning

confidence: 99%

Zinc supplementation improves antioxidant status, and organic zinc is more efficient than inorganic zinc in improving the bone strength of aged laying hens

Niknia

Vakili

Tahmasbi

2022

Veterinary Medicine & Sci

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Background There have been some reports indicating that supplementation of zinc could alleviate the negative effects of age on egg quality in laying hens. However, information regarding these positive effects on health and zinc deposition in the body is limited. Objectives The aim of the present study was to investigate the effect of organic and inorganic sources of zinc on the antioxidant activity, bone strength, and zinc deposition in the tissues of older laying hens. Methods In a completely randomized design, 175 Leghorn laying hens (w36) aged 80 weeks were allocated into seven treatment groups and five replications: control (without zinc supplementation), zinc sulphate treatments (15, 30, and 45 mg/kg), and organic zinc treatments (15, 30, and 45 mg/kg). Results There was a significant increase in feed intake in the zinc sulphate and organic zinc treatments compared to the control treatment (p < 0.05). The egg mass in organic and sulphate zinc showed a significant increase. The feed conversion ratio was decreased significantly in the organic zinc treatments (p < 0.05). Both organic and sulphate zinc supplements enhanced serum superoxide dismutase activity as an antioxidant index (p < 0.05). The cortical thickness of the tibia was improved in laying hens receiving 30 mg/kg organic zinc. Supplementation of zinc could lead to an increase in zinc deposition in tissues, and organic zinc boosts bone strength. Conclusion Zinc supplementation can improve antioxidant activity, feed intake, and feed conversion ratio and enhance egg mass and optimal absorption of zinc in tissues. The use of 30 mg/kg organic zinc is recommended for improving the cortical thickness of the tibia in aged laying hens.

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Comparison the Zn-Threonine, Zn-Methionine, and Zn Oxide on Performance, Egg Quality, Zn Bioavailability, and Zn Content in Egg and Excreta of Laying Hens

Cited by 23 publications

References 61 publications

Zinc Supplementation Forms Influenced Zinc Absorption and Accumulation in Piglets

Zinc Supplementation Forms Influenced Zinc Absorption and Accumulation in Piglets

Natural Products of Plants and Animal Origin Improve Albumen Quality of Chicken Eggs

Zinc supplementation improves antioxidant status, and organic zinc is more efficient than inorganic zinc in improving the bone strength of aged laying hens

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