Organic or Inorganic Zinc for Laying Hens? A Systematic Review and Meta-analysis of the Effects of Zinc Sources on Laying Performance, Egg Quality, and Zinc Excretion
The higher availability of zinc (Zn) from organic than inorganic sources is already established, but more assertive and cost-friendly protocols on the total replacement of inorganic with organic Zn sources for laying hens still need to be developed. Because some discrepancy in the effects of this re...
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| Veröffentlicht in: | Biological trace element research 2024-06, Vol.202 (6), p.2812-2827 |
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| creator | da Silva, Giovane Dias Maia, Jéferson da Silva Costa, Leony de Oliveira Sa, Gabriella Ferreira Mendes, Maria Teresa Oliveira Gabino Chaves, Natalia Ramos Batista Fonseca, Belchiolina Beatriz Vieira, Bruno Serpa |
| description | The higher availability of zinc (Zn) from organic than inorganic sources is already established, but more assertive and cost-friendly protocols on the total replacement of inorganic with organic Zn sources for laying hens still need to be developed. Because some discrepancy in the effects of this replacement in laying hen diets is noticeable in the literature, the objective of this meta-analysis was to properly quantify the effect size of total replacing inorganic Zn with organic Zn in the diet of laying hens on their laying performance, egg quality, and Zn excretion. A total of 2340 results were retrieved from Pubmed, Scielo, Scopus, WOS, and Science Direct databases. Of these, 18 primary studies met all the eligibility criteria and were included in this meta-analysis. Overall, the replacement of inorganic Zn with organic Zn, regardless of other factors, improved (
p
< 0.01) egg production by 1.46%, eggshell thickness by 0.01 mm, and eggshell resistance by 0.11 kgf/cm
2
. Positive results of the same nutritional strategy on egg weight and Zn excretion were only observed at specific conditions, especially when organic Zn was supplemented alone in the feed, not combined with other organic minerals. Therefore, there is evidence in the literature that the total replacement of inorganic Zn with organic Zn improves egg production, eggshell thickness, and eggshell resistance. Factors such as hen age and genetics, organic Zn source, concentration of Zn in the feed, and the strategy of its supplementation have to be more carefully considered in protocols designed to address egg weight and Zn excretion by the hen. |
| doi_str_mv | 10.1007/s12011-023-03861-3 |
| format | Article |
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p
< 0.01) egg production by 1.46%, eggshell thickness by 0.01 mm, and eggshell resistance by 0.11 kgf/cm
2
. Positive results of the same nutritional strategy on egg weight and Zn excretion were only observed at specific conditions, especially when organic Zn was supplemented alone in the feed, not combined with other organic minerals. Therefore, there is evidence in the literature that the total replacement of inorganic Zn with organic Zn improves egg production, eggshell thickness, and eggshell resistance. Factors such as hen age and genetics, organic Zn source, concentration of Zn in the feed, and the strategy of its supplementation have to be more carefully considered in protocols designed to address egg weight and Zn excretion by the hen.</description><identifier>ISSN: 0163-4984</identifier><identifier>ISSN: 1559-0720</identifier><identifier>EISSN: 1559-0720</identifier><identifier>DOI: 10.1007/s12011-023-03861-3</identifier><identifier>PMID: 37733217</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Algorithms ; Animal Feed - analysis ; Animals ; Biochemistry ; Biomedical and Life Sciences ; Biotechnology ; Birds ; Chickens ; Datasets ; Diet ; Dietary minerals ; Dietary Supplements ; Egg production ; egg shell ; Egg Shell - chemistry ; Egg Shell - drug effects ; egg shell thickness ; Egg shells ; egg weight ; Eggs ; Eggs - analysis ; Excretion ; Feeds ; Female ; Genetics ; hens ; Life Sciences ; Meta-analysis ; Nutrition ; Oncology ; Poultry ; Resistance factors ; Review ; Science ; Systematic review ; Thickness ; Trace elements ; Vocabularies & taxonomies ; Weight ; Zinc ; Zinc - metabolism ; Zinc - pharmacology</subject><ispartof>Biological trace element research, 2024-06, Vol.202 (6), p.2812-2827</ispartof><rights>The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c359t-c458418ebd30b8c894a599ee1ddcb7b6ccca847fea01dfbe245faeb81ae442e43</cites><orcidid>0009-0006-7541-1105 ; 0000-0003-2075-0565 ; 0000-0003-2972-542X ; 0000-0001-8485-078X ; 0009-0009-7475-5071</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12011-023-03861-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12011-023-03861-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37733217$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>da Silva, Giovane Dias</creatorcontrib><creatorcontrib>Maia, Jéferson</creatorcontrib><creatorcontrib>da Silva Costa, Leony</creatorcontrib><creatorcontrib>de Oliveira Sa, Gabriella Ferreira</creatorcontrib><creatorcontrib>Mendes, Maria Teresa Oliveira Gabino</creatorcontrib><creatorcontrib>Chaves, Natalia Ramos Batista</creatorcontrib><creatorcontrib>Fonseca, Belchiolina Beatriz</creatorcontrib><creatorcontrib>Vieira, Bruno Serpa</creatorcontrib><title>Organic or Inorganic Zinc for Laying Hens? A Systematic Review and Meta-analysis of the Effects of Zinc Sources on Laying Performance, Egg Quality, and Zinc Excretion</title><title>Biological trace element research</title><addtitle>Biol Trace Elem Res</addtitle><addtitle>Biol Trace Elem Res</addtitle><description>The higher availability of zinc (Zn) from organic than inorganic sources is already established, but more assertive and cost-friendly protocols on the total replacement of inorganic with organic Zn sources for laying hens still need to be developed. Because some discrepancy in the effects of this replacement in laying hen diets is noticeable in the literature, the objective of this meta-analysis was to properly quantify the effect size of total replacing inorganic Zn with organic Zn in the diet of laying hens on their laying performance, egg quality, and Zn excretion. A total of 2340 results were retrieved from Pubmed, Scielo, Scopus, WOS, and Science Direct databases. Of these, 18 primary studies met all the eligibility criteria and were included in this meta-analysis. Overall, the replacement of inorganic Zn with organic Zn, regardless of other factors, improved (
p
< 0.01) egg production by 1.46%, eggshell thickness by 0.01 mm, and eggshell resistance by 0.11 kgf/cm
2
. Positive results of the same nutritional strategy on egg weight and Zn excretion were only observed at specific conditions, especially when organic Zn was supplemented alone in the feed, not combined with other organic minerals. Therefore, there is evidence in the literature that the total replacement of inorganic Zn with organic Zn improves egg production, eggshell thickness, and eggshell resistance. 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A Systematic Review and Meta-analysis of the Effects of Zinc Sources on Laying Performance, Egg Quality, and Zinc Excretion</atitle><jtitle>Biological trace element research</jtitle><stitle>Biol Trace Elem Res</stitle><addtitle>Biol Trace Elem Res</addtitle><date>2024-06-01</date><risdate>2024</risdate><volume>202</volume><issue>6</issue><spage>2812</spage><epage>2827</epage><pages>2812-2827</pages><issn>0163-4984</issn><issn>1559-0720</issn><eissn>1559-0720</eissn><abstract>The higher availability of zinc (Zn) from organic than inorganic sources is already established, but more assertive and cost-friendly protocols on the total replacement of inorganic with organic Zn sources for laying hens still need to be developed. Because some discrepancy in the effects of this replacement in laying hen diets is noticeable in the literature, the objective of this meta-analysis was to properly quantify the effect size of total replacing inorganic Zn with organic Zn in the diet of laying hens on their laying performance, egg quality, and Zn excretion. A total of 2340 results were retrieved from Pubmed, Scielo, Scopus, WOS, and Science Direct databases. Of these, 18 primary studies met all the eligibility criteria and were included in this meta-analysis. Overall, the replacement of inorganic Zn with organic Zn, regardless of other factors, improved (
p
< 0.01) egg production by 1.46%, eggshell thickness by 0.01 mm, and eggshell resistance by 0.11 kgf/cm
2
. Positive results of the same nutritional strategy on egg weight and Zn excretion were only observed at specific conditions, especially when organic Zn was supplemented alone in the feed, not combined with other organic minerals. Therefore, there is evidence in the literature that the total replacement of inorganic Zn with organic Zn improves egg production, eggshell thickness, and eggshell resistance. Factors such as hen age and genetics, organic Zn source, concentration of Zn in the feed, and the strategy of its supplementation have to be more carefully considered in protocols designed to address egg weight and Zn excretion by the hen.</abstract><cop>New York</cop><pub>Springer US</pub><pmid>37733217</pmid><doi>10.1007/s12011-023-03861-3</doi><tpages>16</tpages><orcidid>https://orcid.org/0009-0006-7541-1105</orcidid><orcidid>https://orcid.org/0000-0003-2075-0565</orcidid><orcidid>https://orcid.org/0000-0003-2972-542X</orcidid><orcidid>https://orcid.org/0000-0001-8485-078X</orcidid><orcidid>https://orcid.org/0009-0009-7475-5071</orcidid></addata></record> |
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| subjects | Algorithms Animal Feed - analysis Animals Biochemistry Biomedical and Life Sciences Biotechnology Birds Chickens Datasets Diet Dietary minerals Dietary Supplements Egg production egg shell Egg Shell - chemistry Egg Shell - drug effects egg shell thickness Egg shells egg weight Eggs Eggs - analysis Excretion Feeds Female Genetics hens Life Sciences Meta-analysis Nutrition Oncology Poultry Resistance factors Review Science Systematic review Thickness Trace elements Vocabularies & taxonomies Weight Zinc Zinc - metabolism Zinc - pharmacology |
| title | Organic or Inorganic Zinc for Laying Hens? A Systematic Review and Meta-analysis of the Effects of Zinc Sources on Laying Performance, Egg Quality, and Zinc Excretion |
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