Stimulate the sows as much as possible during their mating (G-spot)
Mating the stimulated sows eases the sperm transport to the oviduct, where they meet the ova.
Page 6 of articles about ai-artificial-insemination
Encapsulated porcine semen: semen preservation, release kinetics, sperm transport, and results in the farm
Sows inseminated with encapsulated semen had more sperm cells concentration at the site of fertilization.
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.
Benefits of semen encapsulation to swine artificial insemination
Encapsulation allows to reduce the dose per sow and a sequential release of sperm.
The effect of pre- and post-mating dietary restriction on embryonic survival in gilts
Reducing post-mating feed intakes to maintenance levels impaired embryo survival.
Effects of lactation length and boar contact in early lactation on expression of oestrus in multiparous sows
Boar contact is an effective method to stimulate oestrus within 26 days of farrowing in both lactating and weaned sows.
Non-productive days (1/2): €16,000 hidden in gestation
Let us see the case of a farm with 5 non-productive days more than the average of the farms with the same profile. Where are these days lost?
Compounds from multilayer plastic bags cause reproductive failures in artificial insemination
This is the first described relationship between reproductive failure and toxic compounds released from plastic bags.
PRRSV transmission via boar semen
Monitoring protocols in boar studs are often insufficient to timely detect an infection.
The battle of the sexes starts in the oviduct: modulation of oviductal transcriptome by X and Y-bearing spermatozoa
Data suggest that the oviduct functions as a biological sensor that screens the spermatozoon, and then responds by modifying the oviductal environment.
Swine artificial insemination: which technique to use and how many sperm per dose?
We should be cautious when setting the number of sperm per insemination dose, so the urge to reduce it does not make us use a number that is under the fertility threshold. Something that may be productive and/or profitable for a certain farm may not be so for another farm.
Supplementing cryopreservation media with reduced glutathione increases fertility of sows
Supplementing freezing media with 2 mm GSH greatly improves boar sperm cryopreservation technology, as it significantly improves the fertilizing ability of frozen-thawed spermatozoa.
Humoral response and colostral antibody transfer following 'one-dose' pre-mating vaccination of sows against porcine circovirus type-2
One-dose vaccination of sows against PCV2 induces colostral antibody transfer.
Clinical case: High percentage of returns-to-oestrus and of sows negative to the pregnancy ultrasound testing
There is an unusual increase of the returns-to-oestrus at 31-39 days. The majority are due to sows previously negative to the pregnancy ultrasound testing, and the returns-to-oestrus happened before 42 days.