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首页> 外文期刊>Tropical Animal Health and Production >Comparison of artificial insemination with natural mating on smallholder farms in Thailand, and the effects of boar stimulation and distance of semen delivery on sow reproductive performance
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Comparison of artificial insemination with natural mating on smallholder farms in Thailand, and the effects of boar stimulation and distance of semen delivery on sow reproductive performance

机译：泰国小农户人工授精与自然交配的比较，公猪刺激和精液输送距离对母猪生殖性能的影响

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Following the implementation of artificial insemination (AI) services for smallholder pig farms, we investigated the reproductive performance after AI and its influencing factors. A small-scale boar station with an AI lab was established with two active boars having good genetics and free from reproductive diseases. Individual sow cards were used for reproductive data recording. A total of 171 sows on 92 farms situated within a radius of 50 km from the AI center were included in this study. Sows bred by AI (n = 121) were inseminated twice per estrus by two trained inseminators. A further 50 sows were mated by natural services using local rental boars. The impact of boar stimulation and distance from the AI center to the farm were also determined. Non-return (P = 0.02) and farrowing rates (P = 0.03) were higher for AI than for naturally bred sows (84.0% and 76.0% vs. 74.0% and 70.0% for AI and naturally bred, respectively). For sows bred by AI, boar stimulation increased non-return rate (84.1% vs. 70.0%; P = 0.09), farrowing rate (83.7% vs. 69.2%; P = 0.01) and litter size (11.2 ± 2.3 vs. 9.7 ± 1.7; P < 0.01). There was no effect on performance due to distance of semen transport. These results clearly indicate that sow performance on smallholder farms will improve if AI is utilized and boar stimulation is employed.
机译：在为小农户养猪场实施人工授精（AI）服务之后，我们调查了人工授精后的生殖性能及其影响因素。建立了一个带有AI实验室的小型公猪站，其中有两只活跃的公猪，它们具有良好的遗传学且没有生殖疾病。单独的母猪卡用于生殖数据记录。这项研究包括位于距AI中心50公里半径内的92个农场中的171头母猪。由AI（n = 121）育成的母猪每个发情期由两名受过训练的授精器授精两次。另外有50头母猪使用当地的公猪进行自然交配。还确定了公猪刺激的影响以及从AI中心到农场的距离。人工授精的单向母猪的不归巢（P = 0.02）和分娩率（P = 0.03）高于自然繁殖的母猪（分别为84.0％和76.0％，而人工授精和自然繁殖的母猪分别为74.0％和70.0％）。对于人工授精的母猪，公猪刺激增加单向繁殖率（84.1％vs. 70.0％； P = 0.09），分娩率（83.7％vs. 69.2％； P = 0.01）和产仔数（11.2±2.3 vs 9.7）。 ±1.7; P <0.01）。精液运输距离对性能没有影响。这些结果清楚地表明，如果利用人工授精和采用公猪刺激，小农户的母猪性能将会提高。

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