Element '{http://www.crossref.org/schema/4.3.6}contributors': Missing child element(s). Expected is one of ( {http://www.crossref.org/schema/4.3.6}organization, {http://www.crossref.org/schema/4.3.6}person_name ).
<?xml version="1.0" encoding="utf-8"?>
<doi_batch xmlns="http://www.crossref.org/schema/4.3.6" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1" xmlns:ai="http://www.crossref.org/AccessIndicators.xsd" version="4.3.6" xsi:schemaLocation="http://www.crossref.org/schema/4.3.6 https://www.crossref.org/schemas/crossref4.3.6.xsd">
<head>
<doi_batch_id>_1773506664</doi_batch_id>
<timestamp>1773506664</timestamp>
<depositor>
<depositor_name>Bernardo Murillo-Amador</depositor_name>
<email_address>bmurillo04@cibnor.mx</email_address>
</depositor>
<registrant>Professional Association for Cactus Development</registrant>
</head>
<body>
<journal>
<journal_metadata>
<full_title>Journal of the Professional Association for Cactus Development</full_title>
<abbrev_title>J PROF ASSOC CACTUS</abbrev_title>
<issn media_type="electronic">1938-6648</issn>
<issn media_type="print">1938-663X</issn>
</journal_metadata>
<journal_issue>
<publication_date media_type="online">
<month>08</month>
<day>17</day>
<year>1991</year>
</publication_date>
</journal_issue>
<journal_article xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1" publication_type="full_text" metadata_distribution_opts="any">
<titles>
<title>Feeding and supplementing prickly pear cactus to beef cattle</title>
</titles>
<contributors/>
<jats:abstract xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1">
<jats:p>Prickly pear cactus (Opuntia spp.), a suculent plant native to the western hemisphere is a main stay in the diets of people, wildlife and domestic livestock.</jats:p>
</jats:abstract>
<publication_date media_type="online">
<month>02</month>
<day>19</day>
<year>2021</year>
</publication_date>
<pages>
<first_page>104</first_page>
<last_page>117</last_page>
</pages>
<doi_data>
<doi>10.56890/jpacd.vi.427</doi>
<resource>https://jpacd.org/jpacd/article/view/427</resource>
<collection property="crawler-based">
<item crawler="iParadigms">
<resource>https://jpacd.org/jpacd/article/download/427/306</resource>
</item>
</collection>
<collection property="text-mining">
<item>
<resource mime_type="application/pdf">https://jpacd.org/jpacd/article/download/427/306</resource>
</item>
</collection>
</doi_data>
</journal_article>
</journal>
</body>
</doi_batch>