Boar semen storage at 5 °C for the reduction of antibiotic use in pig insemination: Pathways from science into practice
Boar semen storage at 5 °C is an innovative tool to reduce antibiotics in extenders.
articles about fertility
Key questions about heat stress: Fertility and productivity
This installment focuses on the effects of heat stress on sow fertility.
How to combat heat stress in pigs
Pigs are particularly vulnerable to heat stress due to their limited ability to dissipate body heat and genetic selection for higher productivity, which has reduced their heat tolerance. Improved technical results increase heat production, and today's lines produce 30% more heat than those in the 1980s.
Fertility after photodynamic inactivation of bacteria in extended boar semen
Photodynamic inactivation could be a promising contribution to the One Health concept with the potential to reduce antimicrobial resistance in animal husbandry.
Reproductive management: Puberty induction
Why induce puberty? If I do choose to induce puberty, what do I need to do, and when?
Heat stress alters the ovarian proteome in prepubertal gilts
Heat stress alters the ovarian proteome and multiple biological pathways and systems in prepubertal gilts; changes that potentially contribute to female infertility.
Fertility responses of melatonin-treated gilts when there are different temperatures and lighting conditions
Melatonin treatment had positive effects on estrous duration and embryo survival, especially in the summer.
Reproductive performance of gilts and weaned sows grouped at different days after insemination
Group housing gestating sows 2 days after breeding compromised litter size; however, mixing gilts on days 1 to 4 after breeding did not impair reproductive performance.
Administration of cloprostenol to sows improves WSI and farrowing rate
The application of cloprostenol after farrowing improved fertility rates and reduced non-productive days.
Causes of regular returns to estrus: the seminal dose or boar
This article covers the main semen- or boar-related factors that can cause regular returns to estrus.
Analysis of steroids in gilt saliva to identify biomarkers of the period of receptivity
The objective of this study was to develop alternatives to hormonal treatments to synchronize oestrus of gilts.
Melatonin potentially acts directly on swine ovary
Melatonin interferes with cultured granulosa cell proliferation and steroidogenesis.
Altrenogest supplementation during early pregnancy improves swine embryonic development
There is a lack of information about progesterone supplementation during early pregnancy regarding swine embryonic development. The objective was to evaluate the effects of progesterone/progestin supplementation from Day 6 of pregnancy on swine reproductive parameters.
Post-thaw boar sperm motility is affected by prolonged storage of sperm in liquid nitrogen
The fact that the major phenotypic characteristic of boar spermatozoa, motility, is constrained by time of cryostorage should be considered when building cryobanks of pig semen.
Sperm DNA integrity in Landrace and Duroc boar semen and its relationship to litter size
Sperm DNA integrity in semen with good motility and morphology may be an additional prediction parameter for fertility in pigs.
A comparison between nulliparous and multiparous sows cervix with regard to post-cervical AI
The future design of AI strategies and catheters should take into consideration the morphological variations of the cervix lumen, which will depend on age and parity of the females.