Page 29 of articles about genetics-reproduction

Semen extenders on frozen-thawed boar sperm characteristics and distribution after deep intrauterine insemination in sows

We compared the effects of extenders of frozen-thawed semen on post-thaw sperm characteristics and the distribution of frozen-thawed spermatozoa in the female genital tract after fixed-timed deep intrauterine insemination (DIUI) in sows.

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HealthArticle

Health protocols for replacements: respiratory and systemic diseases (2/3)

We are talking about PRRSV, M. hyo, PCV2, App and swine influenza virus.

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ManagementAbstract

Effect of cross fostering on preweaning mortality

This study indicates that cross fostering was associated with lower risk for preweaning mortality.

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Genetics-ReproductionAbstract

Seasonal changes in concentration of steroid hormones in the spermatic cord vessels of the mature boar

There were greater steroid concentrations in arterial vessels during December in comparison to June.

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ManagementAbstract

Non-infectious causes of pre-weaning mortality in piglets

Piglet pre-weaning mortality (PWM) is one of the major reproductive components that affects herd productivity in the swine industry.

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NutritionAbstract

Assessment of the lactation feed intakes including environmental temperatures and betaine supplementation

Sow feed intake is limited at high temperature in ad libitum fed sows during lactation but, betaine supplemented sows may show higher feed intake during this period .

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The chain of events that links a known variation in the FUT1 gene to changes in intestinal sugar molecules and in altered gut colonization and pathogen susceptibility.

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HealthArticle

Genetic selection may be used to control pathogen susceptibility and the composition of the gut microbiota

Genetic selection provides a powerful tool to improve and maintain gut health in industrial pig production, and may in the future become a more sustainable alternative to the currently massive need for antibiotics.

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333 news

New section on pig reproduction

In this new pig333's section, several international experts write articles on pig reproduction.

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Genetics-ReproductionAbstract

Low birth weight affects lifetime productive performance and longevity of female swine

The results of this study show that low BiW (<1 kg) negatively influences the production of piglets and longevity of female swine.

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A poor boar; he was too young, had very poor libido and despite being in front of oestrus sows, went to sleep

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Genetics-ReproductionArticle

Control of oestrus in problem gilts and sows

Meeting batch breeding targets requires availability of enough service-ready weaned sows and gilts.

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ManagementAbstract

Do nurse sows and foster litters have impaired animal welfare?

The results show that nurse sows and their piglets to some extent experience more welfare problems than non-nurse sows with piglets at a similar age.

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NutritionAbstract

The effect of varying duration of water restriction on lactating sows

Duration of water restriction did not affect water consumption on a 24-h basis, nursing behaviour or performance.

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Genetics-ReproductionAbstract

Uterine and placenta characteristics during early vascular development in the pig

This work establishes fundamental time points in placenta development corresponding to fetal growth and microfold formation that may influence fetal growth and impact fetal survival.

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Genetics-ReproductionAbstract

The prospects of selection for social genetic effects to improve welfare and productivity in pigs

Social genetic effects offer the opportunity to breed for improved behaviour while maintaining performance.

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Genetics-ReproductionAbstract

The use of genomics in conservation management of the endangered Philippines' Visayan Warty Pig (Sus cebifrons)

In conclusion, genomic techniques answered some important questions about this critically endangered mammal and can be a valuable toolset to inform future conservation management in other species as well.

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News

Animal breeding - adoption of the regulation setting new UE conditions

The Council adopted the regulation on zootechnical and genealogical conditions for the breeding, trade in and entry into the Union of purebred breeding animals, hybrid breeding pigs and their germinal products.