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Artificial Insemination (AI) for Cattle
BioPryn Blood PG test -- alternate method for blood draw?
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<blockquote data-quote="milkmaid" data-source="post: 1288703" data-attributes="member: 852"><p>I like an 18-20 ga x 1-1.5" needle and the tail vein on most cows. You don't need a big needle and larger diameters makes a huge hematoma on the tail likely - that also makes it difficult to draw blood next time. Blood draws on groups, I use supplies similar to what BioPryn provides:</p><p></p><p><a href="http://www.biotracking.com/store/cattle100" target="_blank">http://www.biotracking.com/store/cattle100</a></p><p></p><p>Just less stuff to carry, clean up and throw away. I don't use syringes unless I can't get a sample with the vacutainer.</p><p></p><p>I usually go at one of the first three vertebral junctions from the base of the tail - it's easier to hit lower down - remember if you hold the tail too tight/high the vein is stretched and doesn't flow well. There's always a jugular, ear, and facial veins that can be accessed in a pinch, but the tail is by far the safest and quickest.</p></blockquote><p></p>
[QUOTE="milkmaid, post: 1288703, member: 852"] I like an 18-20 ga x 1-1.5" needle and the tail vein on most cows. You don't need a big needle and larger diameters makes a huge hematoma on the tail likely - that also makes it difficult to draw blood next time. Blood draws on groups, I use supplies similar to what BioPryn provides: [url=http://www.biotracking.com/store/cattle100]http://www.biotracking.com/store/cattle100[/url] Just less stuff to carry, clean up and throw away. I don't use syringes unless I can't get a sample with the vacutainer. I usually go at one of the first three vertebral junctions from the base of the tail - it's easier to hit lower down - remember if you hold the tail too tight/high the vein is stretched and doesn't flow well. There's always a jugular, ear, and facial veins that can be accessed in a pinch, but the tail is by far the safest and quickest. [/QUOTE]
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BioPryn Blood PG test -- alternate method for blood draw?
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