Page 38 of articles about genetics-reproduction

Effect of distributing primary and secondary antioxidants to the sow during the weaning‐estrus interval

The supply of the antioxidants to the sow during the weaning‐estrus interval significantly reduced both the percentage of immature piglets per litter and the within‐litter variation of birth weights.

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Press releases

First Chinese litters allow further expansion of JSR’s global breeding programme

JSR’s global breeding programme has seen its first litters born in China, signalling the spread of the company’s genetics into the most important market in the world.

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News

United Kingdom: wean more pigs to be more profitable

The aim is to help every producer move towards an extra three pigs per sow per year weaned.

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333 news

New section: Replacement rate simulator

We have developed a new simulator that will help us to calculate the number of gilts to be entered in a farm when its activity starts, when increasing its sow census or when calculating the replacement rate of an already working farm.

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News

EU authorises import of live pigs from the United States

A measure authorising the import of live US pigs into the EU for breeding and production was adopted by the European Commission.

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Abstract

Poor weaning transition ADG in is not correlated with pathological or immunological markers of enteric disease during a PRRSV outbreak

Poor tADG in pigs is not correlated with pathogens or immunological markers of enteric disease during a PRRSV.

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NutritionAbstract

Dietary fat supplementation on sow and litter performance in high ambient temperatures

The inclusion of a mixture of animal-vegetable blend fat and choice white grease may improve sow and litter performance in summer conditions.

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Abstract

Sorting by parity to reduce aggression toward first-parity sows in group-gestation housing systems

Sorting by parity shielded first-parity sows from severe injuries caused by mixing-induced aggression.

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Genetics-ReproductionArticle

The pig genome

Teams from 54 research groups, led by the Universities of Edinburgh (UK), Illinois (USA), Uppsala (Sweden) and Wageningen (Netherlands) have sequenced the entire genome of the pig.

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Press releases

TOPIGS finds SNPs for litter birthweight and litter uniformity

TOPIGS has found several SNPs which explain genetic variation in litter birthweight and litter uniformity and can be used to breed sows that farrow large, heavy and uniform litters.

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ManagementArticle

Nurse sows

As of the 3rd-4th day of lactation it is not recommendable anymore to replace small piglets and piglets with poor a growth rate for good piglets, because it is probable that the teat that has to be used has already dried off due to the scarce stimulation received for several consecutive days.

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Abstract

Characterization of “second parity syndrome” profiles and associated risk factors in French sow herds

“2nd parity syndrome” (P2S) includes various signs: delayed estrus, infertility and small litters.

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Total number of piglets born according to the mating day

Genetics-ReproductionArticle

Nature is wise: Optimum moment for the mating

The author considers which is the ideal day for the mating and sets out the improvements in the results obtained when weaning on Monday.

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Press releases

JSR’s latest investment set to improve minimum sperm count per dose

Investment in the latest semen dosage counting technology will ensure all JSR semen products now offer customers even higher levels of consistency and far exceed existing industry audit standards.

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