{"id":4159,"date":"2021-03-23T16:11:17","date_gmt":"2021-03-23T15:11:17","guid":{"rendered":"https:\/\/www.procross.info\/unkategorisiert\/press-release-new-report-confirms-crossbred-dairy-cattle-improve-fertility-without-compromising-production\/"},"modified":"2021-03-23T16:23:55","modified_gmt":"2021-03-23T15:23:55","slug":"press-release-new-report-confirms-crossbred-dairy-cattle-improve-fertility-without-compromising-production","status":"publish","type":"post","link":"https:\/\/www.procross.info\/de\/news-de\/press-release-new-report-confirms-crossbred-dairy-cattle-improve-fertility-without-compromising-production\/","title":{"rendered":"Press Release : New report confirms crossbred dairy cattle improve fertility without compromising production"},"content":{"rendered":"\t\t
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Press Release : \nNew report confirms crossbred dairy cattle improve fertility without compromising production<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tNewly published study confirms advantages of crossbreeding over the pure Holstein<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tHolstein x Montb\u00e9liarde x Viking Red had better fertility and comparable production<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tCrossbreds had better conception rates, lower age at first calving and fewer days open<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tLifetime Daily Yield (kg fat + protein) was almost identical for crossbreds and Holsteins<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tThe crossbreds produced higher quality milk than the pure Holstein<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tCrossbreeding addresses the growing problem of inbreeding depression<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tHybrid vigour and the choice of complementary breeds explain the benefits<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tThe benefits of crossbreeding persist through a three-way breeding rotation<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tThe breeds in the trial are marketed as ProCROSS by VikingGenetics and Coopex Montb\u00e9liarde<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    A growing body of evidence<\/strong> is demonstrating that crossbred cattle are significantly more fertile than the pure Holstein. Their improved fertility has been shown to be achieved without any compromise to their milk production.<\/p>\n

    A succession of investigations into the performance of the Holstein x Montb\u00e9liarde x VikingRed<\/strong> has found the three-breed cross to perform better than the purebred for every measure of fertility. It has achieved this feat whilst producing almost the same weight of fat plus protein as the pure Holstein.<\/strong><\/p>\n

    The latest study to confirm this message is reported in the prestigious, peer-reviewed Journal of Dairy Science, (103:8683-8697, September 2020). Undertaken as part of a 10-year study at the University of Minnesota<\/strong>, it investigated the performance of cattle bred using the Holstein (HO), Montb\u00e9liarde (MO) and VikingRed (VR), now marketed as the ProCROSS programme.<\/p>\n

    Commenting on the fertility of the ProCROSS, the study\u2019s lead author, Dr Amy Hazel, said: \u201cFor every parameter we looked at, the crossbreds were overwhelmingly better than their Holstein herdmates.<\/strong>\u201d<\/p>\n

    For example, the three-breed crossbreds had significantly higher (+9% to +10%<\/strong>) first service conception rates<\/strong>. They also had lower ages at first, second and third calving; significantly fewer (-16.5) days open over three lactations; and their advantage in days open increased to almost three weeks for their third lactations.<\/p>\n

    Furthermore, fat plus protein production (kg) in each of their first three lactations, was just 3-4% lower than the Holstein in the three-breed cross.<\/strong> However, when converted to a lifetime daily yield (LDY) of fat plus protein, the ProCROSS produced 2.537kg per day, only 1% lower than the 2.554kg per day of her Holstein herdmates.<\/strong><\/p>\n

    \u201cLDY is an important economic parameter, as it is influenced by a range of traits including conception rates, return to peak production and survival, all of which are influenced by the cow\u2019s fertility,\u201d continued Dr Hazel. <\/p>\n

    Following the three-breed cross on to the next generation revealed there was no difference in weight of fat plus protein between the third (Holstein-sired) cross of ProCROSS cattle and the pure Holstein.<\/p>\n

    All the crossbred generations also produced milk with higher percentages of fat and protein than their Holstein herdmates.<\/p>\n

    Dr Hazel said the better performance of the ProCROSS was also reflected in greater profitability \u2013which was the subject of additional research at the University of Minnesota, and was expected to be published in detail in JDS over the coming months.<\/p>\n

    She said: \u201cThe immediate financial benefits of good fertility come largely through lower insemination, hormone treatment and pregnancy diagnosis costs.<\/p>\n

    \u201cFertility also has a direct and positive impact on lifespan,\u201d she added. \u201cThis was seen in the ProCROSS cattle whose herdlife averaged 997 days, compared with 850 days for the Holstein \u2013 a lifespan advantage of 147 days<\/strong>.\u201d<\/p>\n

    The extra lifespan also gave rise to lower replacement rates, which were important in lowering costs of production.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Choice of breeds and hybrid vigour<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Dr Hazel attributed the crossbreeds\u2019 advantage to the choice of complementary breeds alongside hybrid vigour (heterosis). The use of three breeds in rotation was said to maintain heterosis at a constant 86% in perpetuity, so giving the outcrossed animal better performance than the average of its parents.<\/p>\n

    She added: \u201cWe found the breeds used in the trial to be very complementary. The Holstein brings production and udder traits; the Montb\u00e9liarde brings fertility, body condition and strength; and the VikingRed brings calving traits, udder health and fertility. Furthermore, the three breeds are complementary for stature, helping to bring size uniformity and ease of management.\u201d<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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    One motivation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    The motivation for the trial was said to have come from concern over the narrowing of Holstein bloodlines, the resulting inbreeding depression and the desire to gain the benefits of hybrid vigour.<\/p>\n

    \u201cThe inbreeding coefficient in the USA\u2019s Holstein population now exceeds 8% and continues to rise at a rate of 0.35% each year,\u201d she said. \u201cThis inevitably results in inbreeding depression which silently steals profit from dairy producers, because it mostly affects traits which are not readily noticeable such as embryo loss, less disease resistance and shortened survival.\u201d<\/p>\n

    This was clearly reflected in the newly published fertility results, while improved health, lower stillbirth rates and improved feed efficiency have also been demonstrated in ProCROSS cattle.<\/p>\n

    \u201cThis trial has demonstrated how the qualities of two complementary breeds can be blended with those of the Holstein to create more robust, fertile and long-living cattle which retain the production of the Holstein,\u201d concluded Dr Hazel. \u201cBy choosing the Montb\u00e9liarde and VikingRed, we were introducing breeds whose strong-suits complemented those the Holstein lacks.<\/p>\n

    \u201cAs pressure increases on the finite resources we use for food production, our economic sustainability has to consider the expenses for feed, health care, fertility, herd replacements and labour. For this reason, genetic selection of dairy cattle must move its emphasis away from the single trait of milk production, and crossing these three breeds provides an effective means of achieving this,\u201d she said.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    For more information:<\/strong><\/p>\n

    St\u00e9phane Fitamant, Director of ProCROSS<\/strong>: s.fitamant@procross.info<\/p>\n

    Source<\/strong><\/em><\/p>\n

    \u201c<\/em>Fertility and 305-day production of Viking Red-, Montb\u00e9liarde-, and Holstein-sired crossbred cows compared with Holstein cows during their first 3 lactations in Minnesota dairy herds\u201d, by Dr. Amy Hazel, Dr. Brad Heins, and Dr. Les Hansen from the University of Minnesota, published in Journal of Dairy Science, Volume 103, Issue 09, September 2020, P8683-8697.<\/em><\/p>\n

    https:\/\/www.journalofdairyscience.org\/article\/S0022-0302(20)30505-1\/fulltext<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    \n\t\t\t\t\t\tMore info on ProCROSS Advantages\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
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    A growing body of evidence is demonstrating that crossbred cattle are significantly more fertile than the pure Holstein. Their improved fertility has been shown to be achieved without any compromise to their milk production.<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[236,235],"tags":[],"class_list":["post-4159","post","type-post","status-publish","format-standard","hentry","category-news-de","category-news-3"],"_links":{"self":[{"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/posts\/4159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/comments?post=4159"}],"version-history":[{"count":5,"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/posts\/4159\/revisions"}],"predecessor-version":[{"id":4173,"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/posts\/4159\/revisions\/4173"}],"wp:attachment":[{"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/media?parent=4159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/categories?post=4159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.procross.info\/de\/wp-json\/wp\/v2\/tags?post=4159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}