{"id":2487,"date":"2020-04-11T09:19:42","date_gmt":"2020-04-11T09:19:42","guid":{"rendered":"http:\/\/agri-research-journal.net\/SjarEn\/?p=2487"},"modified":"2020-04-11T09:19:44","modified_gmt":"2020-04-11T09:19:44","slug":"relationship-of-the-polymorphisms-resulted-from-point-%e2%80%8emutations-g2572t-and-g2688c-on-the-hsp70-gene-with-%e2%80%8ethe-productive-traits-of-holstein-cows","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=2487","title":{"rendered":"Relationship of the Polymorphisms Resulted from Point \u200eMutations (G2572T and G2688C) on the HSP70 Gene with \u200ethe Productive Traits of Holstein Cows"},"content":{"rendered":"\n

Bashar Adham Ahmad*(1)<\/sup> and Wasan\nJassim Al-Khazraji(2)<\/sup><\/strong><\/p>\n\n\n\n

(1).\nDepartment of Animal Production,  College\nof Agriculture, Diyala University, Iraq. <\/p>\n\n\n\n

 (2).\nDepartment of Animal Production, College of Agricultural Engineering Sciences,\nUniversity of Baghdad, Iraq.<\/p>\n\n\n\n

(*Corresponding author: Bashar Adham Ahmad.\nE-Mail: basharadh83@gmail.com).<\/p>\n\n\n\n

Received: 27\/02\/2020                               Accepted:\n29\/03\/2020<\/p>\n\n\n\n

Abstract<\/strong><\/p>\n\n\n\n

The research was conducted at Taj\nAl-Nahrain Cows Station, located in Al-Qadisiya Governorate, Diwaniya District,\nwhich is 180 km from the center of Baghdad, for the period (19\/3\/2018 to\n20\/3\/2019) and molecular genetic analyzes were conducted at the laboratory of\nthe College of Agricultural Engineering Sciences, University of Baghdad. The samples\nwere sent to the Korean Macrogen Corporation to read the sequence of\nnitrogenous bases for the HSP70 gene, and the relationship between the genetic\nvariation caused by the two mutations was examined with the traits of milk\n(daily milk production, total milk production, peak production, persistence of production\nand length of milk season) and milk components (fat ratio, non-fat solids, density,\nprotein ratio and lactose ratio) and the heat tolerance coefficient (summer\nheat tolerance coefficient, autumn heat tolerance coefficient, winter heat\ntolerance coefficient and general heat tolerance coefficient). The results showed\nthe presence of the first mutation (G2572T) in three genotypes (GG=26 GT=14\nTT=13) and allele frequency of (G 0.62 and T 0.38), while the second mutation\n(G2688C) appeared in two genotypes (GG=50 GC=3) \nand allele frequency of (G 0.97 and C 0.03), and the first mutation\n(G2572T) did not show significant effect on milk production traits, but significantly affected the fat ratio, where the individuals which were carrying the\nmutant genotype TT were superior. While the wild genotype GG significantly surpassed\nthe two genotypes GT and TT in non-fatty solids, density, protein ratio and lactose ratio and the autumn and winter heat tolerance coefficient and general heat\ntolerance coefficient. The second mutation\n(G2688C) had no significant effect in the all traits.<\/p>\n\n\n\n

Key words: <\/strong>Cow Holstein, Heat tolerance coefficient, Gene HSP70.<\/p>\n\n\n\n

Full paper in Arabic: PDF<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Bashar Adham Ahmad*(1) and Wasan Jassim Al-Khazraji(2) (1). Department of Animal Production,  College of Agriculture, Diyala University, Iraq.  (2). Department of Animal Production, College of Agricultural Engineering Sciences, University of Baghdad, Iraq. (*Corresponding author: Bashar Adham Ahmad. E-Mail: basharadh83@gmail.com). Received: … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[307,1068],"tags":[1119,1120],"class_list":["post-2487","post","type-post","status-publish","format-standard","hentry","category-animal-production","category-v7n2-april-2020","tag-cow-holstein","tag-heat-tolerance-coefficient"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2487","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2487"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2487\/revisions"}],"predecessor-version":[{"id":2488,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2487\/revisions\/2488"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}