{"id":4141,"date":"2023-02-27T12:29:17","date_gmt":"2023-02-27T09:29:17","guid":{"rendered":"https:\/\/www.coa.sua.ac.tz\/animal\/?p=4141"},"modified":"2023-07-13T19:02:23","modified_gmt":"2023-07-13T16:02:23","slug":"genes-and-models-for-estimating-genetic-parameters-for-heat-tolerance-in-dairy-cattle","status":"publish","type":"post","link":"https:\/\/www.coa.sua.ac.tz\/animal\/research-news\/genes-and-models-for-estimating-genetic-parameters-for-heat-tolerance-in-dairy-cattle","title":{"rendered":"Genes and models for estimating genetic parameters for heat tolerance in dairy cattle"},"content":{"rendered":"<p><span style=\"font-size: 14pt\"><strong>Habimana, V*<\/strong>., EkineDzivenu, C. C., <strong>Nguluma, A. S*<\/strong>., Nziku, Z. C., Morota, G., <strong>Chenyambuga, S. W*.<\/strong>, and Mrode, R. Genes and models for estimating genetic parameters for heat tolerance in dairy cattle. <em>Frontiers in Genetics,<\/em> 14, 299.<\/span><\/p>\n<p><span style=\"font-size: 14pt\">*From the Department of Animal, Aquaculture, and Range Sciences at Sokoine University of Agriculture.<\/span><\/p>\n<p><span style=\"font-size: 14pt\">Dairy cattle are highly susceptible to heat stress. Heat stress causes a decline in <\/span><span style=\"font-size: 14pt\">milk yield, reduced dry matter intake, reduced fertility rates, and alteration of <\/span><span style=\"font-size: 14pt\">physiological traits (e.g., respiration rate, rectal temperature, heart rates, pulse <\/span><span style=\"font-size: 14pt\">rates, panting score, sweating rates, and drooling score) and other biomarkers <\/span><span style=\"font-size: 14pt\">(oxidative heat stress biomarkers and stress response genes). Considering the <\/span><span style=\"font-size: 14pt\">significant effect of global warming on dairy cattle farming, coupled with the aim <\/span><span style=\"font-size: 14pt\">to reduce income losses of dairy cattle farmers and improve production under hot <\/span><span style=\"font-size: 14pt\">environments, there is a need to develop heat tolerant dairy cattle that can grow, <\/span><span style=\"font-size: 14pt\">reproduce and produce milk reasonably under the changing global climate and <\/span><span style=\"font-size: 14pt\">increasing temperature. The identification of heat tolerant dairy cattle is an <\/span><span style=\"font-size: 14pt\">alternative strategy for breeding thermotolerant dairy cattle for changing <\/span><span style=\"font-size: 14pt\">climatic conditions. <\/span><\/p>\n<p><span style=\"font-size: 14pt\">This review synthesizes information pertaining to <\/span><span style=\"font-size: 14pt\">quantitative genetic models that have been applied to estimate genetic <\/span><span style=\"font-size: 14pt\">parameters for heat tolerance and relationship between measures of heat <\/span><span style=\"font-size: 14pt\">tolerance and production and reproductive performance traits in dairy cattle. <\/span><span style=\"font-size: 14pt\">Moreover, the review identified the genes that have been shown to influence heat <\/span><span style=\"font-size: 14pt\">tolerance in dairy cattle and evaluated the possibility of using them in genomic <\/span><span style=\"font-size: 14pt\">selection programmes. Combining genomics information with environmental, <\/span><span style=\"font-size: 14pt\">physiological, and production parameters information is a crucial strategy to <\/span><span style=\"font-size: 14pt\">understand the mechanisms of heat tolerance while breeding heat tolerant <\/span><span style=\"font-size: 14pt\">dairy cattle adapted to future climatic conditions. Thus, selection for <\/span><span style=\"font-size: 14pt\">thermotolerant dairy cattle is feasible.<\/span><\/p>\n<p><span style=\"font-size: 14pt\">For more details:\u00a0<a href=\"https:\/\/www.frontiersin.org\/articles\/10.3389\/fgene.2023.1127175\/full\" target=\"_blank\" rel=\"noopener\"><strong>Click here<\/strong><\/a><\/span><\/p>\n<p><strong>Share this page<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Habimana, V*., EkineDzivenu, C. C., Nguluma, A. S*., Nziku, Z. C., Morota, G., Chenyambuga, S. W*., and Mrode, R. Genes and models for estimating genetic parameters for heat tolerance in dairy cattle. Frontiers in Genetics, 14, 299. *From the Department of Animal, Aquaculture, and Range Sciences at Sokoine University of Agriculture. Dairy cattle are highly [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4142,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-4141","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-news"],"_links":{"self":[{"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/posts\/4141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/comments?post=4141"}],"version-history":[{"count":5,"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/posts\/4141\/revisions"}],"predecessor-version":[{"id":5936,"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/posts\/4141\/revisions\/5936"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/media\/4142"}],"wp:attachment":[{"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/media?parent=4141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/categories?post=4141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.coa.sua.ac.tz\/animal\/wp-json\/wp\/v2\/tags?post=4141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}