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Page 45 of articles about genetics-reproduction

Industry News - China accepting live hog imports from U.S

According to USDA’s Animal and Plant Health Inspection Service (APHIS), China is once again accepting live hogs exported from the United States. China had suspended those imports two years ago, when H1N1 influenza virus was sickening people, along with pork products.

NutritionAbstract

Effect of dietary supplementation of n-3 fatty acids and elevated concentrations of dietary protein on the performance of sows

Dietary supplementation of n-3 fatty acids during lactation improved the growth of nursing piglets.

Is it possible to control genetic defects?

The standard database for inherited traits and disorders in animal species (OMIA) lists 29 single-locus disorders, nine of these have been characterized at the molecular level, meaning that DNA testing may be used for control.

JSR Breeding Pigs Fly Into China

Over eight-hundred high health, genetically advanced breeding pigs have successfully touched down in China this week. The animals were transported from the UK onboard a specially chartered 747 aircraft on behalf of JSR Genetics.

Does group housing increase the risk of reproduction problems in French sow herds?

The aim of this study was to investigate reproductive performance and possible reproductive problems (late estrus, infertility, reasons for culling) in herds with either group‐housed or individually housed pregnant sows. In a second analysis, we evaluated the effects of different group housing systems.

Recela con verraco

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ManagementArticle

Mating guidelines (III)

In the last chapter we examined mating guidelines that came rather close to being ideal, given that they achieve the following objectives: At least one mating should be adjusted to meet the ideal time and achieve the first objective with the least number of matings.

What is the economic loss due to genetic defects?

An economic model was developed that assessed financial loss through the pyramid from nucleus to multiplier to commercial herd on a per litter basis for traits with an incidence higher than 0.10%.

Inseminación artificial

ManagementArticle

Mating guidelines (II)

The ideal mating guideline should follow 2 objectives: At least one mating should be adjusted to meet the ideal time and achieve the first objective with the least number of matings.

Reproductive performance of sows is affected by the dietary omega‐6 to omega‐3 fatty acid ratio

An experiment was conducted to determine the effects of the omega‐6 (n‐6) to omega‐3 (n‐3) fatty acid ratio in sow diets on reproductive performance and immunoglobulin profiles in sow colostrum and piglet serum.

How to process a litter

Pautas de cubrición

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ManagementArticle

Mating guidelines (I)

As mentioned in the previous chapter, theoretically, the ideal mating time is around 10-12 hours before ovulation.

Denmark - Increase in pig mortality

Piglet mortality in Denmark has been increasing in line with increasing litter size. Scientists from the Faculty of Agricultural Sciences have reviewed existing knowledge about the problem and suggest methods to reducing it.

Thompson’s tip: Successful semen storage

Successful AI is an essential part of profitable pig farm performance. AI studs take great care over processing and handling semen to send out a product that is capable of giving results at levels comparable to, or better than, natural service.

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Family Farms, Inc. in the Philippines forms strategic partnership with TOPIGS

TOPIGS and Family Farms, Inc in the Philippines have formalized a strategic pig genetics agreement which is composed of gilt multiplication and installation of a modern artificial insemination centers.

Phenotypic and Genetic Correlations between Gilt Estrus, Puberty, Growth, Composition, and Structural Conformation Traits with First Litter Reproductive Measures

The objective was to estimate correlations of gilt estrus, puberty, growth, composition, and structural conformation traits with first litter reproductive measures.

USA - The US and Ukraine sign health protocol for swine semen

The bilateral health veterinary certificate for swine semen was finalized on January 6th, 2011. US swine genetics industry may proceed with shipments to Ukraine.