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<blockquote data-quote="Putangitangi" data-source="post: 1559983" data-attributes="member: 5956"><p>I've just finished mating a few days ago: I was able to inseminate/have mated all the animals in my list (34 cows & heifers) within 24 days. I put a couple of home-bred yearling bulls out after insem and only one cow came back on heat. Even those heifers I hadn't been able to inseminate properly, appear to be in calf. I'm delighted! 46-day mating, should lead to a 35-day calving, which is very nice. Barring some stupid disaster, of course. </p><p></p><p>I went back through my insem records after posting here about the heifers I couldn't do and found that over time 30% of those I described similarly got pregnant from the sub-standard insemination. So sometimes I get enough of the right stuff in close enough to the right place.</p><p></p><p>I lowered herd numbers a couple of seasons ago after a horrible year of calving problems after a tough winter and currently farming feels a lot more pleasant than it did closer to the edge. </p><p></p><p>My calculations for this year are 97% on heat in the first three weeks and 93% conception rate on once-only natural-heat insem over 30 cows/heifers.</p></blockquote><p></p>
[QUOTE="Putangitangi, post: 1559983, member: 5956"] I've just finished mating a few days ago: I was able to inseminate/have mated all the animals in my list (34 cows & heifers) within 24 days. I put a couple of home-bred yearling bulls out after insem and only one cow came back on heat. Even those heifers I hadn't been able to inseminate properly, appear to be in calf. I'm delighted! 46-day mating, should lead to a 35-day calving, which is very nice. Barring some stupid disaster, of course. I went back through my insem records after posting here about the heifers I couldn't do and found that over time 30% of those I described similarly got pregnant from the sub-standard insemination. So sometimes I get enough of the right stuff in close enough to the right place. I lowered herd numbers a couple of seasons ago after a horrible year of calving problems after a tough winter and currently farming feels a lot more pleasant than it did closer to the edge. My calculations for this year are 97% on heat in the first three weeks and 93% conception rate on once-only natural-heat insem over 30 cows/heifers. [/QUOTE]
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