Zinc Methionine for Stressed Laying Hens

Kienholz, E. W.; Moreng, R. E.; Flinchum, J. D.

doi:10.3382/ps.0710829

Cited by 14 publications

(12 citation statements)

References 2 publications

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“…That author included 3.5% calcium in the diet supplemented with organic trace minerals and confirmed their positive effect on egg production when comparing this treatment with the diet with no organic trace mineral supplementation and 4% calcium inclusion. Kienholz (1992) found higher egg production in layers fed a diet with organic Zn supplementation and submitted to stress due to low dietary calcium level (3%), which was not observed in the present experiment.…”

Section: Effect Of Organic Selenium and Zinc On The Performance And Econtrasting

confidence: 75%

Effect of organic selenium and zinc on the performance and egg quality of Japanese quails

Cruz

Fernandez

2011

Rev. Bras. Cienc. Avic.

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The present study aimed at evaluating the effect of the dietary inclusion of organic trace minerals selenium and zinc on the performance and internal and external egg quality of Japanese quails submitted to heat stress. Data on egg production, feed conversion (kg feed intake/ kg eggs and dozen eggs), egg weight, egg specific gravity, eggshell thickness and weight, Haugh unit, yolk index, albumen index and mortality (%) of 144 quails were evaluated for 112 days, divided in eight cycles of 14 days. Birds were distributed according to a randomized block experimental design into four treatments (control; 0.3ppm Se; 60ppm Zn and 0.3ppm Se + 60ppm Zn) with six replicates each. There were no differences (p > 0.05) in egg production (%), egg mass (g/hen/ day), feed conversion per egg mass (kg/kg), feed conversion per dozen eggs (kg/dz), average egg weight (g), egg specific gravity, eggshell thickness and weight (g), Haugh unit, yolk index, albumen index and mortality (%). However, quails fed the combination of Se and Zn presented higher (p < 0.05) feed intake (28.73 g/hen/day). Those fed only organic selenium had higher average daily egg production (30.17 eggs/day), and those fed the diet only supplemented with zinc presented higher mortality (p < 0.05). The results of the present study suggest that the supplementation of organic trace minerals in Japanese quails diets submitted to heat stress does not significantly influence quail performance and internal egg quality, whereas the supplementation of the combination of organic Zn and Se increases feed intake.

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Section: Effect Of Organic Selenium and Zinc On The Performance And Econtrasting

confidence: 75%

Effect of organic selenium and zinc on the performance and egg quality of Japanese quails

Cruz

Fernandez

2011

Rev. Bras. Cienc. Avic.

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“…Most of the studies in the literature do not report effects of organic minerals on production, feed intake and food conversion (Kienholz, 1992;Dale & Strong, 1998;Ludeen, 2001;Sechinato, 2006), with the exception of Branton et al (1995), who observed an improvement in laying percentage of birds that received chelated minerals. Paik (2001) observed an increase in laying rate of birds 96 to 103 weeks of age that received organic copper and the association of organic Cu+Mn+Zn.…”

Section: Resultsmentioning

confidence: 99%

Effect of using organic microminerals on performance and external quality of eggs of commercial laying hens at the end of laying

et al. 2010

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-The objective of the present study was to evaluate the effect of using microminerals in organic form on the performance and quality of eggs from commercial laying hens at the end of laying. Four hundred and eighty Hisex strain hens, 72 to 80 weeks of age, were used. A randomized complete design was used, with six replications and 16 birds for each experimental unit. Five diets were evaluated: basal feed supplemented with all microminerals in inorganic form (control); basal feed supplemented with 50% microminerals zinc (Zn) + manganese (Mn) + copper (Cu) in organic form and 50% in inorganic form; basal feed supplemented with 50% zinc in organic form and 50% in inorganic form; basal feed supplemented with 50% manganese in organic form and 50% in inorganic form; and basal feed supplemented with 50% copper in organic form and 50% in inorganic form. There was no effect of diets on egg production, feed intake, food conversion and egg shell percentage and thickness. Birds fed basal feed supplemented only with zinc or manganese in organic form produced eggs with lower specific weight. The use of basal feed supplemented with copper in organic form has minimized egg loss. However, the best results (lower egg loss, higher specific weight and higher weight of eggs) were obtained with the basal feed supplemented with microminerals Zn + Mn + Cu in organic form and, therefore, it is recommended for feeding of commercial laying at the end of laying.Key Words: egg characteristics, laying hens, minerals, production Efeito da utilização de microminerais orgânicos sobre o desempenho e a qualidade externa dos ovos de poedeiras comerciais em final de postura RESUMO -Um experimento foi realizado com o objetivo de avaliar o efeito da utilização de microminerais na forma orgânica sobre o desempenho e a qualidade dos ovos de poedeiras comerciais em final de postura. Foram utilizadas 480 galinhas da linhagem Hisex com 72 a 80 semanas de idade, distribuídas em delineamento inteiramente casualizado, com 6 repetições e 16 aves por parcela. Foram avaliadas cinco dietas: ração basal suplementada com todos os microminerais na forma inorgânica (controle); ração basal suplementada com 50% dos microminerais zinco (Zn) + manganês (Mn) + cobre (Cu) na forma orgânica e 50% na forma inorgânica; ração basal suplementada com 50% de zinco na forma orgânica e 50% na forma inorgânica; ração basal suplementada com 50% de manganês na forma orgânica e 50% na forma inorgânica e ração basal suplementada com 50% de cobre na forma orgânica e 50% na forma inorgânica. Não houve efeito das dietas sobre a produção de ovos, o consumo de ração, a conversão alimentar, a porcentagem e a espessura de casca. As aves que consumiram a ração basal suplementada apenas com zinco ou manganês na forma orgânica produziram ovos com menor peso específico. A utilização da ração basal suplementada com cobre na forma orgânica proporcionou menor perda de ovos. Porém, os melhores resultados foram obtidos com a ração basal suplementada com os microminerais Zn + Mn + Cu na forma ...

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“…Dietary zinc methionine enhances mononuclear phagocytic function against Salmonella arizona and Salmonella enteritidis in young turkeys [21,22]. It improves egg production and quality in hens during low calcium stress and during the recovery period [25,28].…”

Section: Zinc Methionine Complexesmentioning

confidence: 99%

Bioavailability, antioxidant and immune‐enhancing properties of zinc methionine

Chien¹,

Zafra-Stone²,

Bagchi³

et al. 2006

BioFactors

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Although a large number of transition metals and cations remarkably induce oxidative deterioration of biological macromolecules including lipids, proteins and DNA, the trace element zinc acts as a novel dietary supplement and an essential micronutrient, and serves a wide range of biological functions in human and animal health. Zinc promotes antioxidant and immune functions, stabilizes and maintains the structural integrity of biological membranes, and plays a pivotal role in skin and connective tissue metabolism and repair. Zinc is an integral constituent of a large number of enzymes including antioxidant enzymes, and hormones including glucagon, insulin, growth hormone, and sex hormones. High concentrations of zinc are found in the prostate gland and choroids of the eye. Zinc deficiency leads to biochemical abnormalities including the impairments of growth, dermal, gastrointestinal, neurologic and immunologic systems. Given its superior bioavailability, antioxidant and immune-enhancing properties, zinc methionine may serve as a novel dietary supplement to promote health benefits in humans and animals.

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Zinc Methionine for Stressed Laying Hens

Cited by 14 publications

References 2 publications

Effect of organic selenium and zinc on the performance and egg quality of Japanese quails

Effect of organic selenium and zinc on the performance and egg quality of Japanese quails

Effect of using organic microminerals on performance and external quality of eggs of commercial laying hens at the end of laying

Bioavailability, antioxidant and immune‐enhancing properties of zinc methionine

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