1.0NJD-isciencehttps://nor-ijournal.com/ruNJD-iSciencehttps://nor-ijournal.com/ru/author/ad432mdfin45/rich600338<blockquote class="wp-embedded-content" data-secret="Yk8JTOWu7F"><a href="https://nor-ijournal.com/ru/2023/10/12/118-4/">Lazarov G., Mladenov V. – CHANGES IN THE BLOOD GLUCOSE AND SERUM LIPIDS IN MEN AGED 37 TO 45 YEARS WITH A TESTOSTERONE LEVEL BELOW THE AVERAGE VALUES OF THE STANDARD FOR A PROLONGED PERIOD</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://nor-ijournal.com/ru/2023/10/12/118-4/embed/#?secret=Yk8JTOWu7F" width="600" height="338" title="«Lazarov G., Mladenov V. – CHANGES IN THE BLOOD GLUCOSE AND SERUM LIPIDS IN MEN AGED 37 TO 45 YEARS WITH A TESTOSTERONE LEVEL BELOW THE AVERAGE VALUES OF THE STANDARD FOR A PROLONGED PERIOD» — NJD-iscience" data-secret="Yk8JTOWu7F" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://nor-ijournal.com/wp-includes/js/wp-embed.min.js </script>From the first periods of the creation and formation of society and until now, livestock farming has always developed, improved and, if necessary, specialized as the main source of meat, milk, fat, eggs and honey.Artificial insemination of animals, improving their breed composition and increasing productivity is one of the most important issues in our republic. By widely applying this advanced method, inseminating female animals with seeds from high-class sires, it is possible to prevent infertility, and at the same time a number of diseases that can be sexually transmitted during mating. The main goal of artificial insemination is the creation of new productive breeds and the replacement of unproductive local breeds with more productive breeds [6].https://nor-ijournal.com/wp-content/uploads/2023/10/NJD_118-723x1024.jpg