articles about AI - artificial insemination

Evaluation of different thawing protocols on Iberian boar sperm preserved for 10 years at different liquid nitrogen levels

Thawing at 70 °C for 8 seconds maximizes post-thaw sperm quality, especially in those samples stored constantly submerged in liquid nitrogen.

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Figure 2: Proposed protocol according to the puberty induction treatmente response. Note: if you see < 70% gilts estrus by 6-days after treatment--> you likely are having problems with estrus detection.

Genetics-ReproductionArticle

Reproductive management: Puberty induction

Why induce puberty? If I do choose to induce puberty, what do I need to do, and when?

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Genetics-ReproductionArticle

Summary of the 27th IPVS and 15th ESPHM-ECPHM: Reproduction, welfare, and nutrition

In this third installment, Antonio Palomo summarizes the papers presented on reproduction, nutrition, precision livestock farming, and other aspects of swine production.

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Genetics-ReproductionAbstract

Low-density lipoproteins, resveratrol and quercetin as alternative additives to improve boar semen cooling

Low-density lipoproteins can improve the motility and kinetics of boar semen during cooling while it could modulate the sperm's mitochondrial activity.

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ManagementArticle

55th AASV Annual Meeting summary: Miscellaneous

Antonio Palomo summarizes the presentations from the latest AASV, ranging from the future of the veterinary profession to the eradication of diseases, hog prices, and experiences in improving pig survival.

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Genetics-ReproductionAbstract

Myo-inositol improves the viability of boar sperm during liquid storage

The addition of myo-inositol to semen extender improved the boar semen quality by decreasing the effects of oxidative stress during liquid preservation.

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Genetics-ReproductionPress releases

Topigs Norsvin opens new Delta Norway

Topigs Norsvin officially opened its new boar test and research center Delta Norway.

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Photo 1. Femoral puncture during semen collection.

HealthArticle

Practical experience: Ability to detect PRRS infection in boars by sample type

Are we using the best samples and techniques to monitor PRRS absence in boar studs?

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Genetics-ReproductionAbstract

Vaginal and vestibular electrical resistance as an alternative marker for optimum timing of artificial insemination

Change in electrical resistance in the vagina has the potential to accurately predict ovulation timing, but more work is required.

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Genetics-ReproductionArticle

Tip: Book to record weekly matings

In this logbook, each page corresponds to a week of the year in which all the matings during the week are recorded.

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Genetics-ReproductionAbstract

Analysis of artificial insemination center management factors that contribute to sperm parameters and boar longevity

The results reveal better sperm quality for untreated boars than for PGF2α-treated boars, which might indicate that the underlying fertility of boars necessitating treatment is inferior compared to boars that can be collected without further treatment.

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Genetics-ReproductionAbstract

Differences of semen microbiota among breeding boars with different reproductive ages

The semen of older boars contained a higher abundance of harmful bacteria, which contributes to the observed reduction in semen anti-oxidant capacity and overall semen quality in this group.

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ManagementAbstract

Reproductive performance of gilts and weaned sows grouped at different days after insemination

Group housing gestating sows 2 days after breeding compromised litter size; however, mixing gilts on days 1 to 4 after breeding did not impair reproductive performance.

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Genetics-ReproductionAbstract