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Influence of Prostaglandin (PGF(2 alpha)) on pig fertility parameters

机译：前列腺素（PGF（2 alpha））对猪繁殖力参数的影响

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The commitment of prostaglandin F-2 alpha (PGF(2 alpha)) is announced to influence swine fertility. PGF(2 alpha) achieves its destination in the organism via bloodstreams and diffusion. It stimulates the contraction of the myometrium muscles and by this way it plays an important role concerning swine fertility aspects. Back-formation and contraction of the uterus are controlled by PGF(2 alpha).The discussed field cases figure not an uniform presentation concerning the trials with PGF(2 alpha). Neither in North European nor in South European sow herds an influence of PGF(2 alpha) added to diluted semen was dedicated onto the litter size. The application of PGF(2 alpha) improved partially conception rate and farrowing rate. But trials in East Europe with repeat breeding females investigated an increasement of total born and weaned piglets. Also in conception rate and farrowing rate there were significant differences between trial and control. Further investigations are neccessary to proof the influence of PGF(2 alpha) onto fertility, when added to semen in the stud's diluting process and if it is possible to compensate low level sperm concentrations in diluted semen. Furthermore trials should be undertaken to investigate the relationship between adding PGF(2 alpha) to diluted semen and the fertility parameters in high level swine herds.The parenteral application of PGF(2 alpha) to the boar had got no consequences on sperm motility, sperm morphology and libido, but on duration of ejaculation and semen delivery of the boar. PGF(2 alpha) added with 10 mg to diluted semen showed in recent trials a significant influence on sperm motility. Further investigations are nececcary to proof the influence of PGF(2 alpha) added to diluted semen with different concentrations of PGF(2 alpha) on sperm motility, even the influence on storage time is necessary to be investigated.
机译：宣布前列腺素F-2 alpha（PGF（2 alpha））的承诺影响猪的繁殖力。 PGF（2 alpha）通过血液和扩散达到其在机体中的作用。它刺激子宫肌层肌肉的收缩，通过这种方式，它在猪的繁殖力方面起着重要的作用。子宫的形成和收缩受PGF（2 alpha）控制。讨论的实地病例表明，关于PGF（2 alpha）的临床试验并非统一表述。在北欧和南欧的母猪中，添加到稀释精液中的PGF（2α）的影响都没有影响产仔数。 PGF（2 alpha）的使用提高了部分受胎率和产仔率。但是在东欧，有重复繁殖雌性的试验研究了仔猪和断奶仔猪总数的增加。同样，受孕率和分娩率在试验和对照之间也存在显着差异。有必要进行进一步的研究以证明PGF（2 alpha）对育肥的影响，当在种公猪的稀释过程中将其添加到精液中时，以及是否有可能补偿稀释精液中的低水平精子浓度。此外还应进行试验以研究将PGF（2α）添加到稀释的精液中与高水平猪群的生育参数之间的关系.PGF（2α）肠胃外应用对公猪的精子活力，精子没有影响形态和性欲，但射精持续时间和公猪精液输送有关。在最近的试验中，向稀释的精液中添加10 mg PGF（2 alpha）显示出对精子活力的显着影响。需要进一步的研究以证明添加到具有不同浓度的PGF（2 alpha）的稀释精液中的PGF（2 alpha）对精子活力的影响，甚至对储存时间的影响也需要进行研究。

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