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<blockquote data-quote="wbvs58" data-source="post: 1473947" data-attributes="member: 16453"><p>Truegrit, over the last few years I have mostly used SAV Thunderbird, Sydgen Black Pearl and GAR Prophet on the heifers, all 3 have similar BW, Prophet not as good as the other two in Calving ease direct. Of the 3 bulls Thunderbird is the only one I have not had any trouble with he is truly sleep all night calving ease, born very easy maybe a kilo or two lighter but within a couple of weeks are amongst the heaviest. Black Pearl has the best figures overall but is the one I have had most trouble with frequently 45kg calves with the heifers. Note these figures are Australian EBV's.</p><p></p><p>With my main cow herd they usually come out of my Jenny Craig scrub block about 2 weeks before the first ones start calving. Anecdotal evidence suggests that the early ones to calve have the lowest birthweights while the late calvers get more time on the better home pasture and tend to have heavier calves.</p><p></p><p>With regard to selling bulls, yes we get seedstock producers here claiming their bulls are not fed grain but are just run on green winter oat crops, personally I don't see any difference to feeding them grain.</p><p></p><p>Ken</p></blockquote><p></p>
[QUOTE="wbvs58, post: 1473947, member: 16453"] Truegrit, over the last few years I have mostly used SAV Thunderbird, Sydgen Black Pearl and GAR Prophet on the heifers, all 3 have similar BW, Prophet not as good as the other two in Calving ease direct. Of the 3 bulls Thunderbird is the only one I have not had any trouble with he is truly sleep all night calving ease, born very easy maybe a kilo or two lighter but within a couple of weeks are amongst the heaviest. Black Pearl has the best figures overall but is the one I have had most trouble with frequently 45kg calves with the heifers. Note these figures are Australian EBV's. With my main cow herd they usually come out of my Jenny Craig scrub block about 2 weeks before the first ones start calving. Anecdotal evidence suggests that the early ones to calve have the lowest birthweights while the late calvers get more time on the better home pasture and tend to have heavier calves. With regard to selling bulls, yes we get seedstock producers here claiming their bulls are not fed grain but are just run on green winter oat crops, personally I don't see any difference to feeding them grain. Ken [/QUOTE]
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