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Replacement Heifer Gain Target ?
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<blockquote data-quote="Till-Hill" data-source="post: 1465192" data-attributes="member: 16547"><p>Do you calve year round then or how about do you get a defined calving season calving that early?</p><p></p><p>Penn State did a research project when I was in college we read about. They got Holstein heifers big enough and sexually mature to calve at 18 months. The milk lost in that lactation was unreal compared to the ones that calved on average at 24 months. It was around 8-9,000#. They other issue was some of their udders were not developed enough to even make any milk at all.</p></blockquote><p></p>
[QUOTE="Till-Hill, post: 1465192, member: 16547"] Do you calve year round then or how about do you get a defined calving season calving that early? Penn State did a research project when I was in college we read about. They got Holstein heifers big enough and sexually mature to calve at 18 months. The milk lost in that lactation was unreal compared to the ones that calved on average at 24 months. It was around 8-9,000#. They other issue was some of their udders were not developed enough to even make any milk at all. [/QUOTE]
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