一些有助于提高繁殖性能的方法

• 每天查情的时间要一致。即使几个小时的差异也会影响繁殖结果。

Be consistent in the time you start heat checking each day. Even a few hours different from day to day can impact results.

• 对可能遇到问题的母猪给予更多的关注，例如，后备母猪、超期母猪和返情母猪，在查情和配种时给予更多的公猪接触以便更好的刺激母猪静立。

Give extra attention to those that are a challenge, gilts, late-weaners and repeats. Both from a boar exposure standpoint to help induce a more solid heat as well as stimulation during the mating.

• 后备母猪每天查情两次。下午查情时发现发情的后备母猪应在发现的时候就输精一次，第二天上午二次输精，之后输精间隔可延长为24小时。

Heat check gilts twice a day. The gilts found in heat in the afternoon should be bred when you find them and again the next morning and 24-hour intervals from there.

• 有返情风险的母猪要做好标记，以便密切关注，单次输精无疑是有返情风险的。

Flag those at risk to watch extra closely for repeats, single matings are certainly a risk.

• 审查猪场的数据，从数据中是否能看出问题？还是个别配种员的问题？

Look at your farm’s data. Is this a problem? Is it only with a single technician?

• 对员工进行反复培训，探讨母猪的发情周期，根据母猪排卵时间确定最佳的输精时机。

Provide retraining opportunities for the staff, discuss the heat cycle of sows, when does the semen need to be delivered compared to when she ovulates.

• 最重要的是，如果母猪不静立，切记不可输精。

Above all else, if she isn’t standing she doesn’t need a mating.

• 返情复配的成功率在场内和场间的变化性都是很大的。减少变化最好的方法是降低引起变化的数量。

The success of repeat services is highly variable both within farms and across the farms that we looked at for this article. The greatest way to reduce variation is to limit the number causing variation.

• 为获得更好返情复配结果，你要做出一些改变，不能重复一直在做的事情。