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Polled Holsteins were not fully recognized in the 1800s and were often placed in different categories then horned Holsteins. When record keeping began, polled Holsteins became more aware of and the understanding of the polled trait grew. The first polled Holstein sires used for artificial insemination (AI) started in the early to mid 1900s. [1]
Artificial insemination is a biotechnology widely used to improve production of cattle in agriculture, using selection methods that ensure optimal fertility and breeding outcomes. The fertility of the Charolais bull is an important factor as defective semen quality can contribute to reproductive failure, accounting for approximately 5-20% of ...
For the last five decades starting in the late 1960s, the main thrust of BAIF activities has been animal husbandry. This has principally involved artificial insemination (AI) of indigenous Indian cattle breeds with semen from bulls of high milk yielding European cattle breeds such as Jersey and Holstein Friesian. [18]
Many of the bulls will be used in the owners' herds during beef breeding season. However, they have the genetic merit to be used in many others as well. A beef bull may only be able to service 20 to 30 head via natural service during the breeding season. He will be able to service many more during the breeding season via artificial insemination.
Whereas in the past cattle had multiple functions, modern dairy cow breeding has resulted in specialised Holstein Friesian-type animals that produce large quantities of milk economically. Artificial insemination is widely available to allow farmers to select for the particular traits that suit their circumstances. [58]
A breeding mount with built-in artificial vagina used to collect semen from horses for use in artificial insemination. Semen collection refers to the process of obtaining semen from human males or other animals with the use of various methods, for the purposes of artificial insemination, or medical study (usually in fertility clinics).
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The CIAQ provides cattle farmers with bulls from the Ayrshire, Canadienne, Holstein, Jersey and Brown Swiss milk producing breeds along with other beef breeds. Around 800,000 doses of semen from the CIAQ's banks are used yearly by farmers in Quebec, Nova Scotia and around the world through the Semex Alliance, of which the CIAQ is a founding ...