articles about fertility

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.

The application of cloprostenol after farrowing improved fertility rates and reduced non-productive days.

The objective of this study was to develop alternatives to hormonal treatments to synchronize oestrus of gilts.

Melatonin interferes with cultured granulosa cell proliferation and steroidogenesis.

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.

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 semen with good motility and morphology may be an additional prediction parameter for fertility in pigs.

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.

Mounting evidence indicates that light irradiation of mammalian spermatozoa (and of other animal species) increases their motility, capacitation and fertilizing ability, without causing any damage on the DNA.

A genome-wide association study was performed to identify quantitative trait loci for SLP-related traits. A total of five genome-wide suggestive significant single nucleotide polymorphisms were identified.

This study was conducted to evaluate the underlying physiological changes during heat stress and the effect of betaine supplementation in lactating sows.

The improvement in porcine embryo preservation and non-surgical embryo transfer (ET) procedures achieved in recent years represents essential progress for the practical use of ET in the pig industry.

The aim of this study was to evaluate the effects of the weaned recipients' parity on fertility and prolificacy following NsDU-ET.

Sperm motility, morphology and three seminal plasma proteins were positively associated with heterospermic boar fertility.

hCG stimulates growth of estrogenic follicles and CL function, and improves primiparous sow fertility during the summer months.