{"id":11522,"date":"2026-08-31T09:36:28","date_gmt":"2026-08-31T09:36:28","guid":{"rendered":"https:\/\/agri-research-journal.net\/SjarEn\/?p=11522"},"modified":"2026-08-31T09:36:28","modified_gmt":"2026-08-31T09:36:28","slug":"the-effect-of-oral-administration-of-nano-selenium-on-reproductive-efficiency-in-awassi-sheep","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=11522","title":{"rendered":"The effect of oral administration of nano-selenium on reproductive efficiency in Awassi sheep"},"content":{"rendered":"

Mohamed Nasr Alrez1*<\/sup><\/strong><\/span><\/p>\n

1<\/sup> Faculty of Veterinary Medicine, University of Hama, Syria.<\/span><\/p>\n

(*Corresponding author: Mohamed Nasr Alrez, Email: m.alriz@hama-univ.edu.sy<\/u><\/a>).\u00a0<\/span><\/p>\n

Received:<\/strong> 29\/ 9\/ 2025\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Accepted:<\/strong> 4\/ 1\/ 2026<\/span><\/p>\n

Abstract:\u00a0<\/strong><\/span><\/p>\n

The aim of the research was to study the effect of nano-selenium Nano-Se on reproductive efficiency in Awassi sheep. Forty ewes of similar ages and weights were used in the experiment, and they were fed a uniform concentrated feed. The ewes were distributed into four groups: Group T1 was considered a control and was given a daily dose of distilled water. Group T2 was given a dose of 0.25 mg\/kg per day of Nano-Se, while Group T3 was given a dose of 0.5 mg\/kg per day of Nano-Se. Group T4 was given a dose of 1 mg\/kg per day of Nano-Se. The treatment lasted from July 1st to 30th, for a month before the start of the breeding season. The results indicated a significant increase (P\u22640.05) in the rate of onset of estrus and the length of the estrus period, as well as a decrease in the onset of estrus period after the end of treatment with Nano-Se. A significant increase in the pregnancy rate was observed in the treatment groups compared to the control group (T1). Meanwhile, the T3 group, treated with a dose of 0.5 mg\/kg, achieved a higher rate of twin births and birth rate compared to the control group and the other treatment groups. The results also showed a significant improvement (P\u22640.05) in the weights and growth of lambs born in the treatment groups compared to the control group (T1). The study concludes that administering Nano-Se to Awassi ewes before the start of the breeding season led to improved reproductive parameters, increased pregnancy rates, twin births, and higher birth weights.<\/span><\/p>\n

Keywords:<\/strong> Oral administration, Nano selenium, Reproductive efficiency, Awassi sheep.<\/strong><\/span><\/p>\n

\u00a0Full paper in Arabic: PDF<\/a><\/strong><\/span><\/p>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Mohamed Nasr Alrez1* 1 Faculty of Veterinary Medicine, University of Hama, Syria. (*Corresponding author: Mohamed Nasr Alrez, Email: m.alriz@hama-univ.edu.sy).\u00a0 Received: 29\/ 9\/ 2025\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Accepted: 4\/ 1\/ 2026 Abstract:\u00a0 The aim of the research was to study the effect of nano-selenium … 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":[1],"tags":[],"class_list":["post-11522","post","type-post","status-publish","format-standard","hentry","category-sjar"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11522","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=11522"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11522\/revisions"}],"predecessor-version":[{"id":11525,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11522\/revisions\/11525"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}