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Page 6 of articles about gestation

NutritionAbstract

Establishment of the 2012 vitamin D requirements in swine

Dietary treatments of ≥800 IU/kg feed showed beneficial effects for breeding swine in terms of bone mineral content and ultimate strength, decreased number of still born piglets, and greater vitamin D status in comparison with dietary treatments of 200 IU/kg of feed.

Genetics-ReproductionAbstract

Role of interleukin-1β in the regulation of porcine corpora lutea during the late luteal phase of the cycle and during pregnancy

In this study, the influence of IL-1β on secretory activity within the corpora lutea (CL) of cyclic and gravid pigs was determined in vitro during different stages of the CL lifespan.

NutritionAbstract

Pen housed sows with electronic feeding stations

Stage of gestation is the critical point when the sows in a pen with electronic feeding system.

Evolution of the sows' average daily feed consumption according to the batch at the moment of the feed transition.

1

NutritionArticle

Use of special diets during the pre- and postpartum periods

The use of two different feeds for the sows in the farrowing quarters is not always easy at a logistical level.

NutritionAbstract

The use of DDGS in gestating sows kept in a group-housed system or individual stalls

The use of DDGS in gestating diets may creat controversial response on animal behaviour depending on the housing system.

Intrauterine growth restricted piglets defined by their head shape ingest insufficient amounts of colostrum

The present study showed that the physiology of piglets in the colostrum period was affected by IUGR status at birth, and their intermediary metabolism was altered due to different colostrum intakes.

Toys in the pen.

2

ManagementArticle

Main problems with pregnant sows housed in groups (II)

This article suggests some solutions to the main problems encountered in pregnancies with group housing.

Effects of day of farrowing induction and spontaneous versus induced farrowing on sow and suckling piglet performance

Under the conditions of this study, more piglets are born during unsupervised hours when sows are induced on day 116 than when sows are induced on day 113.

Pregnant sows in group pens

2

ManagementArticle

Main problems with pregnant sows housed in groups (I)

The two main factors that make that certain farms have not been successful adapting to the animal welfare regulations are design and handling/management.

Effects of group size and floor space allowance on grouped sows: aggression, stress, skin injuries and reproductive performance

Although the results definitely support a space allowance of 1.4 m2/sow being too small, it is not possible to give guidance on an actual space allowance at mixing that is adequate.

PCV2 outcome at birth

2

Reproductive failure by PCV2 infections

PCV2 may reach embryos/foetuses upon transplacental spread during viremia or upon insemination with contaminated semen.

1

Effect of creatine supplementation during the last week of gestation on birth intervals, stillbirth, and preweaning mortality in pigs

Creatine supplementation improved myelination and may reduce the incidence of low birth weight piglets being crushed by the dam.

NutritionAbstract

Sow dietary fatty acid proﬁle alters fat metabolism and fatty acid composition in weanling pigs

Sows fed PUFA rich diets promote FA beta-oxidation in pigs after weaning which could help the mobilization of body reserves for this critical period.

1

Updated scientific evidence on the welfare of gestating sows kept in different housing systems

Recent papers found similar productivity, physiology, health, and behavior among individually or grouped sows during gestation.

NutritionAbstract

Health indicators of sows and offspring in sows fed genetically modified maize

There is not a clear effect of feeding genetically modified maize on sow and offspring performance.

NutritionAbstract

Maternal conditions during gestation may affect milk fat composition and offspring growth

Maternal conditions during gestation and pre-birth environment may affect further growth rate in newborn pigs.