Single and Combined Impacts of Vitamin A and Selenium in Diet on Productive Performance, Egg Quality, and Some Blood Parameters of Laying Hens During Hot Season
A study was conducted using 162 Bovans laying hens to investigate the impacts of extra dietary vitamin A (0, 8000, 16,000 IU/kg), selenium (0, 0.25, 0.50 mg/kg), and their combinations on the performance, egg quality, and blood biological parameters of laying hens during summer months. Supplemental...
Gespeichert in:
Veröffentlicht in: | Biological trace element research 2017-05, Vol.177 (1), p.169-179 |
---|---|
Hauptverfasser: | , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 179 |
---|---|
container_issue | 1 |
container_start_page | 169 |
container_title | Biological trace element research |
container_volume | 177 |
creator | Abd El-Hack, Mohamed E. Mahrose, Khalid Askar, Ali A. Alagawany, Mahmoud Arif, Muhammad Saeed, Muhammad Abbasi, Farzana Soomro, Rab Nawaz Siyal, Farman Ali Chaudhry, Maria Tabassum |
description | A study was conducted using 162 Bovans laying hens to investigate the impacts of extra dietary vitamin A (0, 8000, 16,000 IU/kg), selenium (0, 0.25, 0.50 mg/kg), and their combinations on the performance, egg quality, and blood biological parameters of laying hens during summer months. Supplemental vitamin A up to 16,000 IU/kg diet significantly (
P
|
doi_str_mv | 10.1007/s12011-016-0862-5 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1835438890</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>4321281939</sourcerecordid><originalsourceid>FETCH-LOGICAL-c372t-544282680b6d3fc2949fa7fd6d85bec29a51fa16bc8c7c7c8cb39d4f1a7120bb3</originalsourceid><addsrcrecordid>eNp1kc1u1DAUhS0EokPhAdggS2xYNGA7cewsy7TQSiMxqMDWcuybkavYHuwEad6GR8UzKQghIS_8991zru5B6CUlbykh4l2mjFBaEdpWRLas4o_QinLeVUQw8hitykddNZ1sztCznO8JoYJ19VN0xoRompbUK_TzzoXdCFgHi9fR9y6Axbd-r82UcRzwNzdp7wK-PBF3MEJws8fl5crBhGPA2xTtbCb3A_AW0hCT18HABb7e7fDnWY9uOlwsxdEDfj_GaPFWJ-1hgnTy2OhDaQLfQMj4ak6nc5yKmc4xPEdPBj1mePGwn6OvH66_rG-qzaePt-vLTWVqwaaKNw2TrJWkb209GNY13aDFYFsreQ_lrjkdNG17I40oS5q-7mwzUC3KEPu-PkdvFt19it9nyJPyLhsYRx0gzllRWfOmlrIjBX39D3of5xRKd4WStOOSE1koulAmxZwTDGqfnNfpoChRx_jUEp8qKaljfIqXmlcPynPvwf6p-J1XAdgC5P1xTpD-sv6v6i_K46Uw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1881958508</pqid></control><display><type>article</type><title>Single and Combined Impacts of Vitamin A and Selenium in Diet on Productive Performance, Egg Quality, and Some Blood Parameters of Laying Hens During Hot Season</title><source>MEDLINE</source><source>Springer Nature - Complete Springer Journals</source><creator>Abd El-Hack, Mohamed E. ; Mahrose, Khalid ; Askar, Ali A. ; Alagawany, Mahmoud ; Arif, Muhammad ; Saeed, Muhammad ; Abbasi, Farzana ; Soomro, Rab Nawaz ; Siyal, Farman Ali ; Chaudhry, Maria Tabassum</creator><creatorcontrib>Abd El-Hack, Mohamed E. ; Mahrose, Khalid ; Askar, Ali A. ; Alagawany, Mahmoud ; Arif, Muhammad ; Saeed, Muhammad ; Abbasi, Farzana ; Soomro, Rab Nawaz ; Siyal, Farman Ali ; Chaudhry, Maria Tabassum</creatorcontrib><description>A study was conducted using 162 Bovans laying hens to investigate the impacts of extra dietary vitamin A (0, 8000, 16,000 IU/kg), selenium (0, 0.25, 0.50 mg/kg), and their combinations on the performance, egg quality, and blood biological parameters of laying hens during summer months. Supplemental vitamin A up to 16,000 IU/kg diet significantly (
P
< 0.05) improved all productive traits studied except feed intake which increased with 8000 IU/kg diet compared with control. Feed intake and feed conversion of hens fed diet supplemented with selenium revealed high statistical (
P
= 0.001) differences. All egg quality criteria were not significantly (
P
< 0.05) affected by dietary vitamin A except albumin percentage and Haugh units, since Haugh unit score was gradually increased with increasing vitamin A level. Vitamin A-enriched groups showed significant (
P
< 0.05 and 0.01) decreases in plasma albumen, total lipids, and total cholesterol in respect to the unsupplemented groups. Compared with unsupplemented groups, total protein, albumin, total lipid, and total cholesterol were increased in selenium-enriched groups. There were no significant impacts of selenium treatments in layer diets on thyroid hormones and liver enzymes studied except alanine transferase (ALT) and thyroxin (T
4
), as compared with the control group. Hematological parameters were not affected by vitamin A treatment except PCV% which decreased with vitamin A supplementation. Hemoglobin and lymphocytes were increased with increasing dietary selenium level. In conclusion, the combined supplementary concentrations of vitamin A (16,000 IU/kg) and selenium (0.25 mg/kg) might be needed for better production and health of laying hens reared under heat stress conditions.</description><identifier>ISSN: 0163-4984</identifier><identifier>EISSN: 1559-0720</identifier><identifier>DOI: 10.1007/s12011-016-0862-5</identifier><identifier>PMID: 27744603</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Animal Feed - analysis ; Animals ; Biochemistry ; Biomedical and Life Sciences ; Biotechnology ; Blood ; Chickens ; Cholesterol ; Diet ; Eggs ; Eggs - analysis ; Feed conversion ; Heat tolerance ; Hormones ; Life Sciences ; Lipids ; Lymphocytes ; Nutrition ; Oncology ; Poultry ; Seasons ; Selenium ; Selenium - administration & dosage ; Selenium - analysis ; Studies ; Thyroid ; Vitamin A ; Vitamin A - administration & dosage ; Vitamin A - analysis</subject><ispartof>Biological trace element research, 2017-05, Vol.177 (1), p.169-179</ispartof><rights>Springer Science+Business Media New York 2016</rights><rights>Biological Trace Element Research is a copyright of Springer, 2017.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c372t-544282680b6d3fc2949fa7fd6d85bec29a51fa16bc8c7c7c8cb39d4f1a7120bb3</citedby><cites>FETCH-LOGICAL-c372t-544282680b6d3fc2949fa7fd6d85bec29a51fa16bc8c7c7c8cb39d4f1a7120bb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12011-016-0862-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12011-016-0862-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27744603$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Abd El-Hack, Mohamed E.</creatorcontrib><creatorcontrib>Mahrose, Khalid</creatorcontrib><creatorcontrib>Askar, Ali A.</creatorcontrib><creatorcontrib>Alagawany, Mahmoud</creatorcontrib><creatorcontrib>Arif, Muhammad</creatorcontrib><creatorcontrib>Saeed, Muhammad</creatorcontrib><creatorcontrib>Abbasi, Farzana</creatorcontrib><creatorcontrib>Soomro, Rab Nawaz</creatorcontrib><creatorcontrib>Siyal, Farman Ali</creatorcontrib><creatorcontrib>Chaudhry, Maria Tabassum</creatorcontrib><title>Single and Combined Impacts of Vitamin A and Selenium in Diet on Productive Performance, Egg Quality, and Some Blood Parameters of Laying Hens During Hot Season</title><title>Biological trace element research</title><addtitle>Biol Trace Elem Res</addtitle><addtitle>Biol Trace Elem Res</addtitle><description>A study was conducted using 162 Bovans laying hens to investigate the impacts of extra dietary vitamin A (0, 8000, 16,000 IU/kg), selenium (0, 0.25, 0.50 mg/kg), and their combinations on the performance, egg quality, and blood biological parameters of laying hens during summer months. Supplemental vitamin A up to 16,000 IU/kg diet significantly (
P
< 0.05) improved all productive traits studied except feed intake which increased with 8000 IU/kg diet compared with control. Feed intake and feed conversion of hens fed diet supplemented with selenium revealed high statistical (
P
= 0.001) differences. All egg quality criteria were not significantly (
P
< 0.05) affected by dietary vitamin A except albumin percentage and Haugh units, since Haugh unit score was gradually increased with increasing vitamin A level. Vitamin A-enriched groups showed significant (
P
< 0.05 and 0.01) decreases in plasma albumen, total lipids, and total cholesterol in respect to the unsupplemented groups. Compared with unsupplemented groups, total protein, albumin, total lipid, and total cholesterol were increased in selenium-enriched groups. There were no significant impacts of selenium treatments in layer diets on thyroid hormones and liver enzymes studied except alanine transferase (ALT) and thyroxin (T
4
), as compared with the control group. Hematological parameters were not affected by vitamin A treatment except PCV% which decreased with vitamin A supplementation. Hemoglobin and lymphocytes were increased with increasing dietary selenium level. In conclusion, the combined supplementary concentrations of vitamin A (16,000 IU/kg) and selenium (0.25 mg/kg) might be needed for better production and health of laying hens reared under heat stress conditions.</description><subject>Animal Feed - analysis</subject><subject>Animals</subject><subject>Biochemistry</subject><subject>Biomedical and Life Sciences</subject><subject>Biotechnology</subject><subject>Blood</subject><subject>Chickens</subject><subject>Cholesterol</subject><subject>Diet</subject><subject>Eggs</subject><subject>Eggs - analysis</subject><subject>Feed conversion</subject><subject>Heat tolerance</subject><subject>Hormones</subject><subject>Life Sciences</subject><subject>Lipids</subject><subject>Lymphocytes</subject><subject>Nutrition</subject><subject>Oncology</subject><subject>Poultry</subject><subject>Seasons</subject><subject>Selenium</subject><subject>Selenium - administration & dosage</subject><subject>Selenium - analysis</subject><subject>Studies</subject><subject>Thyroid</subject><subject>Vitamin A</subject><subject>Vitamin A - administration & dosage</subject><subject>Vitamin A - analysis</subject><issn>0163-4984</issn><issn>1559-0720</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp1kc1u1DAUhS0EokPhAdggS2xYNGA7cewsy7TQSiMxqMDWcuybkavYHuwEad6GR8UzKQghIS_8991zru5B6CUlbykh4l2mjFBaEdpWRLas4o_QinLeVUQw8hitykddNZ1sztCznO8JoYJ19VN0xoRompbUK_TzzoXdCFgHi9fR9y6Axbd-r82UcRzwNzdp7wK-PBF3MEJws8fl5crBhGPA2xTtbCb3A_AW0hCT18HABb7e7fDnWY9uOlwsxdEDfj_GaPFWJ-1hgnTy2OhDaQLfQMj4ak6nc5yKmc4xPEdPBj1mePGwn6OvH66_rG-qzaePt-vLTWVqwaaKNw2TrJWkb209GNY13aDFYFsreQ_lrjkdNG17I40oS5q-7mwzUC3KEPu-PkdvFt19it9nyJPyLhsYRx0gzllRWfOmlrIjBX39D3of5xRKd4WStOOSE1koulAmxZwTDGqfnNfpoChRx_jUEp8qKaljfIqXmlcPynPvwf6p-J1XAdgC5P1xTpD-sv6v6i_K46Uw</recordid><startdate>20170501</startdate><enddate>20170501</enddate><creator>Abd El-Hack, Mohamed E.</creator><creator>Mahrose, Khalid</creator><creator>Askar, Ali A.</creator><creator>Alagawany, Mahmoud</creator><creator>Arif, Muhammad</creator><creator>Saeed, Muhammad</creator><creator>Abbasi, Farzana</creator><creator>Soomro, Rab Nawaz</creator><creator>Siyal, Farman Ali</creator><creator>Chaudhry, Maria Tabassum</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7QP</scope><scope>7TN</scope><scope>7U7</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope></search><sort><creationdate>20170501</creationdate><title>Single and Combined Impacts of Vitamin A and Selenium in Diet on Productive Performance, Egg Quality, and Some Blood Parameters of Laying Hens During Hot Season</title><author>Abd El-Hack, Mohamed E. ; Mahrose, Khalid ; Askar, Ali A. ; Alagawany, Mahmoud ; Arif, Muhammad ; Saeed, Muhammad ; Abbasi, Farzana ; Soomro, Rab Nawaz ; Siyal, Farman Ali ; Chaudhry, Maria Tabassum</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c372t-544282680b6d3fc2949fa7fd6d85bec29a51fa16bc8c7c7c8cb39d4f1a7120bb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Animal Feed - analysis</topic><topic>Animals</topic><topic>Biochemistry</topic><topic>Biomedical and Life Sciences</topic><topic>Biotechnology</topic><topic>Blood</topic><topic>Chickens</topic><topic>Cholesterol</topic><topic>Diet</topic><topic>Eggs</topic><topic>Eggs - analysis</topic><topic>Feed conversion</topic><topic>Heat tolerance</topic><topic>Hormones</topic><topic>Life Sciences</topic><topic>Lipids</topic><topic>Lymphocytes</topic><topic>Nutrition</topic><topic>Oncology</topic><topic>Poultry</topic><topic>Seasons</topic><topic>Selenium</topic><topic>Selenium - administration & dosage</topic><topic>Selenium - analysis</topic><topic>Studies</topic><topic>Thyroid</topic><topic>Vitamin A</topic><topic>Vitamin A - administration & dosage</topic><topic>Vitamin A - analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abd El-Hack, Mohamed E.</creatorcontrib><creatorcontrib>Mahrose, Khalid</creatorcontrib><creatorcontrib>Askar, Ali A.</creatorcontrib><creatorcontrib>Alagawany, Mahmoud</creatorcontrib><creatorcontrib>Arif, Muhammad</creatorcontrib><creatorcontrib>Saeed, Muhammad</creatorcontrib><creatorcontrib>Abbasi, Farzana</creatorcontrib><creatorcontrib>Soomro, Rab Nawaz</creatorcontrib><creatorcontrib>Siyal, Farman Ali</creatorcontrib><creatorcontrib>Chaudhry, Maria Tabassum</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><jtitle>Biological trace element research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abd El-Hack, Mohamed E.</au><au>Mahrose, Khalid</au><au>Askar, Ali A.</au><au>Alagawany, Mahmoud</au><au>Arif, Muhammad</au><au>Saeed, Muhammad</au><au>Abbasi, Farzana</au><au>Soomro, Rab Nawaz</au><au>Siyal, Farman Ali</au><au>Chaudhry, Maria Tabassum</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Single and Combined Impacts of Vitamin A and Selenium in Diet on Productive Performance, Egg Quality, and Some Blood Parameters of Laying Hens During Hot Season</atitle><jtitle>Biological trace element research</jtitle><stitle>Biol Trace Elem Res</stitle><addtitle>Biol Trace Elem Res</addtitle><date>2017-05-01</date><risdate>2017</risdate><volume>177</volume><issue>1</issue><spage>169</spage><epage>179</epage><pages>169-179</pages><issn>0163-4984</issn><eissn>1559-0720</eissn><abstract>A study was conducted using 162 Bovans laying hens to investigate the impacts of extra dietary vitamin A (0, 8000, 16,000 IU/kg), selenium (0, 0.25, 0.50 mg/kg), and their combinations on the performance, egg quality, and blood biological parameters of laying hens during summer months. Supplemental vitamin A up to 16,000 IU/kg diet significantly (
P
< 0.05) improved all productive traits studied except feed intake which increased with 8000 IU/kg diet compared with control. Feed intake and feed conversion of hens fed diet supplemented with selenium revealed high statistical (
P
= 0.001) differences. All egg quality criteria were not significantly (
P
< 0.05) affected by dietary vitamin A except albumin percentage and Haugh units, since Haugh unit score was gradually increased with increasing vitamin A level. Vitamin A-enriched groups showed significant (
P
< 0.05 and 0.01) decreases in plasma albumen, total lipids, and total cholesterol in respect to the unsupplemented groups. Compared with unsupplemented groups, total protein, albumin, total lipid, and total cholesterol were increased in selenium-enriched groups. There were no significant impacts of selenium treatments in layer diets on thyroid hormones and liver enzymes studied except alanine transferase (ALT) and thyroxin (T
4
), as compared with the control group. Hematological parameters were not affected by vitamin A treatment except PCV% which decreased with vitamin A supplementation. Hemoglobin and lymphocytes were increased with increasing dietary selenium level. In conclusion, the combined supplementary concentrations of vitamin A (16,000 IU/kg) and selenium (0.25 mg/kg) might be needed for better production and health of laying hens reared under heat stress conditions.</abstract><cop>New York</cop><pub>Springer US</pub><pmid>27744603</pmid><doi>10.1007/s12011-016-0862-5</doi><tpages>11</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0163-4984 |
ispartof | Biological trace element research, 2017-05, Vol.177 (1), p.169-179 |
issn | 0163-4984 1559-0720 |
language | eng |
recordid | cdi_proquest_miscellaneous_1835438890 |
source | MEDLINE; Springer Nature - Complete Springer Journals |
subjects | Animal Feed - analysis Animals Biochemistry Biomedical and Life Sciences Biotechnology Blood Chickens Cholesterol Diet Eggs Eggs - analysis Feed conversion Heat tolerance Hormones Life Sciences Lipids Lymphocytes Nutrition Oncology Poultry Seasons Selenium Selenium - administration & dosage Selenium - analysis Studies Thyroid Vitamin A Vitamin A - administration & dosage Vitamin A - analysis |
title | Single and Combined Impacts of Vitamin A and Selenium in Diet on Productive Performance, Egg Quality, and Some Blood Parameters of Laying Hens During Hot Season |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-29T21%3A49%3A51IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Single%20and%20Combined%20Impacts%20of%20Vitamin%20A%20and%20Selenium%20in%20Diet%20on%20Productive%20Performance,%20Egg%20Quality,%20and%20Some%20Blood%20Parameters%20of%20Laying%20Hens%20During%20Hot%20Season&rft.jtitle=Biological%20trace%20element%20research&rft.au=Abd%20El-Hack,%20Mohamed%20E.&rft.date=2017-05-01&rft.volume=177&rft.issue=1&rft.spage=169&rft.epage=179&rft.pages=169-179&rft.issn=0163-4984&rft.eissn=1559-0720&rft_id=info:doi/10.1007/s12011-016-0862-5&rft_dat=%3Cproquest_cross%3E4321281939%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1881958508&rft_id=info:pmid/27744603&rfr_iscdi=true |