Page 33 of articles about genetics-reproduction

Comparison of specimens for detection of PRRSv infection in boar studs

These results showed that the highest assurance of providing PRRSV-negative semen to sow farms should be based on rRT-PCR testing of serum collected at the time of semen collection.

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Canada gains market access for live breeding cattle and swine to Georgia

Canadian cattle and swine breeders can immediately begin exporting to this market. Georgian breeders also benefit by gaining access to Canada’s world-class animal genetics.

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Post-cervical insemination seen from inside the uterus

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Genetics-ReproductionArticle

Current state of post-cervical insemination in multiparous, primiparous and nulliparous sows

It is necessary to find alternatives to definitely implement this technique in primiparous sows and start its use in gilts.

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ManagementAbstract

Analysis of hygienic critical control points in boar semen production

The present study emphasizes the need for both training of the laboratory staff in monitoring HCCP in routine semen production and audits in such AI centers for the external control of hygiene parameters.

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The birthing process of a piglet

Scott Phillips, a pig farmer from Missouri, shows how he pays individual attention to the mother pigs as they give birth to their piglets.

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Distinguishing sows with different genetics using cards and ear tags with different colours

Usual standard on many farms to identify a sow with different genetics quickly.

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Genetics-ReproductionAbstract

Porcine semen as a vector for transmission of viral pathogens

Prevention of viral semen contamination should be the primary focus because it is easier to prevent contamination than to eliminate viruses once present in semen.

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Growth and finisher pig traits are moderately heritable

Genetics-ReproductionArticle

Heritability

Traits of high or moderate heritability are easily improved by testing and selection. However, for traits of low heritability, improvements come from exploiting heterosis and by the use of BLUP.

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Pigs that are resistant to PRRSv developed at University of Missouri

Porcine Reproductive and Respiratory Syndrome (PRRS) virus was first detected in the U.S. in 1987. Pigs that contract the disease have extreme difficulty reproducing, don’t gain weight and have a high mortality rate. The disease costs North American farmers more than $660 million annually. Now, a team of researchers from the University of Missouri, Kansas State University, and Genus plc have bred pigs that are not harmed by the disease.

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Partial or total change of colour from black to white

Genetics-ReproductionArticle

Heterosis (hybrid vigour) and inbreeding

Benefits and risks of heterosis and inbreeding in pig production.

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Genetics-ReproductionAbstract

Influences on semen traits used for selection of young AI boars

A minimum age is proposed for young boars to qualify for selection, or alternatively, age-related semen quality thresholds in young boars should be established.

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Piglets produced during a sow's life based on the number of PBA at first farrowing

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Genetics-ReproductionArticle

At long last, we can now predict a sow's performance from her first farrowing

We can predict a sow's production based on the number of piglets born alive at first farrowing. In addition, the best sows' performance will outdo the others' continuously.

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