Influence of boar contact on attainment of puberty in gilts after removal of the olfactory bulbs.
Influence of boar contact on attainment of puberty in gilts after removal of the olfactory bulbs.
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公猪接触对去除嗅球后后备母猪进入青春期的影响。
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
P. Hughes
中科院分区：
文献类型：
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作者：
R. Kirkwood;J. M. Forbes;P. Hughes
在6-7周龄时，从后备母猪身上取出嗅球，然后从第160天开始，将后备母猪与结扎的公猪接触30分钟/天。这些后备母猪首次发情的平均+/- s.e.m.年龄（230 +/- 15天）与未接触公猪的完整后备母猪（234 +/- 8天）相似，但高于未接触公猪的假后备母猪和未接触公猪的后备母猪（分别为204 +/- 3天和208 +/- 9天）（P < 0.05）。生长率和初发情排卵率无差异。结果表明，公猪效应的主要刺激物是嗅觉。
At 6-7 weeks of age the olfactory bulbs were removed from gilts which were then exposed to vasectomized boars for 30 min/day, starting on Day 160. Mean +/- s.e.m. age at first oestrus was similar in these gilts (230 +/- 15 days) to that in intact gilts not exposed to a boar (234 +/- 8 days) but greater (P < 0.05) than for sham- and un-operated gilts exposed to a boar (204 +/- 3 and 208 +/- 9 days, respectively). There were no differences in growth rate or ovulation rate at first oestrus. It is concluded that the main stimulus involved in the boar effect is olfactory in nature.