Fertilizing capacity of boar semen frozen in an extender supplemented with ostrich egg yolk lipoprotein fractions - A pilot study

• Autorzy: Fraser L. , Strzezek R. , Strzezek J.
• Języki publikacji: EN

Abstrakty

EN

A limited field trial was performed to evaluate the fertilizing capacity of boar spermatozoa frozen in an extender supplemented with lipoprotein fractions isolated from ostrich egg yolk (LPFo). Boar semen, diluted in an extender containing lactose with lyophilized lipoprotein fractions, glycerol and Orvus Es Paste (lactose-LPFo-G), was frozen using a controlled programmable freezer. Sperm characteristics, such as motility, plasma membrane and acrosome integrity, and mitochondrial function were monitored. Post-cervical artificial inseminations (post-CAIs) in multiparous sows (Polish Large White) were performed using the Soft & Quick® catheter/cannula set. Sows were inseminated 2 to 3 times within one oestrus. Possible returns of sows to oestrus were determined from 21 to 30 days after post-CAIs. In this field trial, sows inseminated with 2 x 109 motile frozen-thawed spermatozoa resulted in pregnancy and farrowing rates of 75%, respectively. The average piglets born live was 10.5 ± 0.4 (mean ± SEM). The data of this study showed that post-CAI of boar semen frozen in LPFo-containing extender has the potential to provide acceptable fertility results. Further investigations are needed to elucidate the cause of variations in pregnancy/farrowing rate associated with frozen-thawed boar semen.

Słowa kluczowe

EN

frozen semen; ostrich; semen; boar; domestic animal; freezing; egg yolk; lipoprotein fraction; fertility result; spermatozoon; thawing; animal biochemistry; boar semen; biotechnology

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2007
• Tom: 10
• Numer: 3
• Opis fizyczny: p.131-135,ref.

Twórcy

autor

Fraser L.

• University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-718 Olsztyn, Poland

autor

Strzezek R.

autor

Strzezek J.

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