Different feeding levels during wean-to-estrus and first week of gestation of sows
High feeding level during the wean-to-oestrus may increase farrowing rate but also may increase stillborn rate and reduce piglet birth weight.
Page 4 of articles about gestation
Outcomes of gestation length in relation to farrowing performance
Premature births increase the number of intra-partum deaths and result in lower birthweights, the presence of apnoea, and severe metabolic alterations in piglets.
How efficient are the current hyper-prolific lactating sows? (1/2)
The study described here was designed to determine if the body tissue mobilization during lactation imposed by feed restriction could affect litter size and sow performance in the subsequent lactation.
Factors for improving reproductive performance of sows and herd productivity in commercial breeding herds
We review critical factors associated with reproductive performance of female breeding pigs, their lifetime performance and herd productivity in commercial herds. The factors include both sow-level and herd-level factors.
Comparing gestating sows housing between electronic sow feeding system and a conventional stall
Although the better sow and litter performance for group housed sows with electronic feeding system some improvements are still required in terms of body scratch and locomotion disorders.
Feeding level during gestation affects farrowing and litter performance
Increasing feeding level during gestation may improve piglet body weight at birth but have a negative impact on feed intake and backfat loss during lactation.
Palygorskite dietary supplementation effects on back fat mobilization, leptin levels and oxidative stress in sows
The use of palygorskite in sow diets reduces oxidative stress in gestating sows.
Clinical case: Increase of returns in summer and low annual prolificacy
The farm reports a problem of low prolificacy (mean annual live births of 11.91) and low fertility in summer, with a marked increase in acyclic returns.
Relationships between ovulation rate and embryonic and placental characteristics in multiparous sows at 35 days of pregnancy
A high avulation rate results in an moderate increase in the number of vital embryos at day 35 of pregnancy, but compromises development in the surviving embryonic/placental units, suggesting that the future growth and survival of the embryos might be further compromised.
Observations of sows and piglets housed in farrowing pens with temporary crating or farrowing crates on a commercial farm
The current study demonstrated that the farrowing system design can influence sow behaviour, with pens allowing for more interactions between sows and their piglets.
Essential fatty acid supplementation during lactation is required to maximize the subsequent reproductive performance of the modern sow
A minimum dietary intake of both α-linolenic and linoleic acid is required for the modern lactating sow to achieve a maximum reproductive outcome.
Is body condition the right tool to adjust feeding in pregnant sows?
Energy intake based on body condition differs greatly from the energy adult sows require. Moreover, the NRC clearly overestimates the sows' maintenance requirements.
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.
Conjugated linoleic acid during late gestation reduces the fat content in the colostrum and increases IgG
Colostrum production and immunoglobulin concentrations to conjugated linoleic acid during late gestation.
Interval from last insemination to culling: Culling reasons from practise and the correlation with longevity
This study showed the potential to select on longer interval from last insemination to culling in days and thereby select against sows to be culled within the reproduction, locomotion, accident, general disorder and peri-partum cull class and to be culled at the end of a parity.
Effect of PCV2 infection on reproduction: disease, vertical transmission, diagnostics and vaccination
The immune status of farms is quite possibly different from the one they had before piglets mass vaccinations.