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.
Page 30 of articles about genetics-reproduction
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.
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 .
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.
New section on pig reproduction
In this new pig333's section, several international experts write articles on pig reproduction.
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.
Control of oestrus in problem gilts and sows
Meeting batch breeding targets requires availability of enough service-ready weaned sows and gilts.
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.
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.
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.
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.
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.
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.
APHIS is proposing to recognize the Republic of Malta as free of SVd, ASF and FMD
This change would remove some of the current restrictions on imports of ruminants, breeding swine and their products from Malta.
Nutrigenomics in swine nutrition
Neonatal mineral and vitamin supplementation have a huge impact on bone development and body composition via the regulation of mesenchymal stem cells and satellite cell programing.
Prevalence of boar taint in commercial pigs from Spanish farms
Given these results, a future online method to classify carcasses according to boar taint is strongly recommended.