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如何通过数据管理提高母猪配种分娩率 被引量:1

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摘要 一、配种分娩率定义 (一)配种分娩率是指配种的一群母猪中到期分娩的头次数,如果同一头母猪在一个约定的时间阶段内配种了2次,则记为2头次。公式如下:
机构地区 养猪风人院
出处 《猪业观察》 2015年第2期57-60,共4页 swine industry outlook
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  • 1闫之春.用频率分布法分析母猪返情的主因素,提高规模猪场的配种分娩率[J].养殖与饲料,2005,4(10):33-35. 被引量:2
  • 2Koketsu Y, Dial GD, King VL. Influence of various factors on far-rowing rate on farms using early weaning[J].J Anim Sci, 1997(75):2580-2587.
  • 3Beth Young, Catherine E Dewey, Robert M Friendship. Manage-ment factors associated with farrowing rate in commercial sowherds in Ontario[J]. Can Yet J, 2010(51):185-189.
  • 4PigChamp.USA 2012 year end summary [EB/OL]. http://bench -mark. farms. com/2013一Summary一 of一the一2012一 data. html ,2013.
  • 5Gadea J, Selles E, Marco MA. The predictive value of porcineseminal parameters on fertility outcome under commercial condi-tions[J]. Reprod Dom Anim, 2004(39): 303-308.
  • 6Gill P. Managing reproduction - critical control points in exceed-ing 30 pigs per sow per year [J]. Proc London Swine Conf, 2007:171-184.
  • 7Soede NM, Wetzels CC, Zondag W, et al. Effects of time of insem-ination relative to ovulation, as determined by ultrasonography, onfertilization rate and accessory sperm count in sows [J]. J ReprodFertil, 1995(104): 99-106.
  • 8Rozeboom K J, Troedsson M H, Shurson G C, et al. Late estrus oring rate and litter size in swine [J]. J Anim Sci, 1997 (75):2323-2327.
  • 9Soede N M, Langendijk P, Kemp B. Reproductive cycles in pigs[J]. Anim Reprod Sci, 2011(124):251-258.
  • 10Soede N M, Kemp B. Expression of oestrus and timing of ovula-tion in pigs[J]. J Reprod Fertil, 1997, 52(Suppl):91-103.

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