Control points in the preparation of semen doses: sperm concentration (2/2)
This second part on AI stud management reviews the procedure for calculating sperm concentration and the elements that affect a correct assessment.
Page 4 of articles about boar
Evaluation of producing and marketing entire male pigs
Farms with appropriate management, feeding and housing conditions have reduced levels of mounting and aggressive behaviour.
Control points in the preparation of semen doses: temperature control and quality parameters (1/2)
The impact of semen used for post-cervical AI is 2-3 times bigger than that used to produce cervical insemination doses; therefore, preparation of the doses should follow an even stricter control program.
The dependence of the growth rate and meat content of young boars on semen parameters and conception rate
The objective of the research was to conduct semen parameter and conception rate analyses on the basis of growth rate and meat content.
Use of B-Mode ultrasonography to examine the genital tract of boars
This tool allows prediction of potential ejaculate yield and to aid in diagnosing subfertility/infertility associated with diseased tissues.
Never miss a heat: Build a better boar bachelor pad
Automated heat detection identifies open sows safely and accurately.
China: Swine imports to increase in 2017
Swine imports to increase in 2017 due to demand for high-quality genetics.
CASTRUM study on alternative methods of anesthesia and analgesia for the castration of pigs
The CASTRUM study shows large differences in practice in European countries.
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.
Strategic value of boar studs in production systems
Production of a minimum number of doses to maintain profitability and the increase in post-cervical insemination leads to an increase of the doses produced per boar and, therefore, their share of responsibility in the production process.
Effect of natural betaine on estimates of semen quality in mature AI boars during summer heat stress
Betaine supplementation at 0.63% and 1.26% tended to increase sperm concentration in the ejaculates by 6% and 13%, respectively.
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.
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.
Comparison of specimens for detection of PRRSv infection in boar studs
These results showed that the highest assurance of providing PRRSV-negative semen to sow farms should be based on rRT-PCR testing of serum collected at the time of semen collection.
Improving the sows perception of the boar
The idea is to modify the doors of the pen where sows are housed in groups to increase the contact with the boar.
Analysis of hygienic critical control points in boar semen production
The present study emphasizes the need for both training of the laboratory staff in monitoring HCCP in routine semen production and audits in such AI centers for the external control of hygiene parameters.