Reproductive performance following non-surgical deep uterine porcine embryo transfer
The aim of this study was to evaluate the effects of the weaned recipients' parity on fertility and prolificacy following NsDU-ET.
Page 2 of articles about fertility
Use of heterospermic inseminations in boar fertility
Sperm motility, morphology and three seminal plasma proteins were positively associated with heterospermic boar fertility.
Human chorionic gonadotrophin in early gestation improves sow fertility during summer
hCG stimulates growth of estrogenic follicles and CL function, and improves primiparous sow fertility during the summer months.
Using first and second parity number born alive information to estimate later reproductive performance in sows
Early parity number born alive classification effectively predicts later parity performance. Sows classified as high in both parity one and in parity two had larger litters in later parities.
Effect of Pseudomonas aeruginosa on sperm capacitation and protein phosphorylation of boar spermatozoa
The present study provides novel data regarding the effects of bacterial contamination on boar sperm, suggesting that the presence of P aeruginosa affects the fertilizing ability of boar sperm by altering its ability to accomplish IVC.
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.
Semen extenders on frozen-thawed boar sperm characteristics and distribution after deep intrauterine insemination in sows
We compared the effects of extenders of frozen-thawed semen on post-thaw sperm characteristics and the distribution of frozen-thawed spermatozoa in the female genital tract after fixed-timed deep intrauterine insemination (DIUI) in sows.
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.
Effects of space allocation and parity on selected physiological and behavioural measures of well-being and reproductive performance in group-housed gestating sows
Our results suggest that at least at the chosen stocking densities, parity and space allocation have minimal effect on a number of commonly-used welfare measures.
Effect of different dietary energy levels in reared gilts until the first parity
The use of different dietary energy levels during gilt rearing affects the level of body reserves but not productive and reproductive performance.
The effect of numbers of frozen-thawed boar sperm and addition of prostaglandin F2α at insemination on fertility in pigs
These results indicate that AI using 2.0 × 109 FTS can result in acceptable pregnancy rates and litter sizes but with no measurable benefit for addition of prostaglandin.
Magnesium supplementation improves digestibility and reproductive parameters in sows
Magnesium supplementation can increase reproductive performance in adult sows.
Watch for the monitoring of farrowings
This watch has three circles: the blue one represents the hours, the green one the liveborn piglets, and the red one the stillborn piglets.
Consequences of different dietary energy sources during follicular development on subsequent fertility of cyclic gilts
These results suggest that it is possible to manipulate dietary insulin response in cyclic gilts and, thus, improve reproductive efficiency when feeding starch as the main energy source during the late luteal and follicular phases of the cycle.
At what age and weight should we inseminate our gilts?
20 years ago we inseminated gilts when too small, then we inseminated them when too heavy, and now we are returning to an intermediate weight.
Measures of the ovaries and uterus during development of gilts selected for differences in uterine capacity
Selection for increased UC results in larger ovaries and uterine horns, but TRU was not useful for estimating these traits in gilts of the age studied.