Effect of day of mixing gestating sows on reproductive fertility
These results suggest that mixing sows in the 1st or 2nd week of gestation can result in reduced conception and farrowing rates when compared to housing sows in stalls.
Page 37 of articles about sow
The dilemma of fostering on the first day of life
The ingestion of Ig in sufficient quantity is the first priority. So much so that it even comes before the factor that seems most important: the feed supply.
Testing females to improve accuracy
With high-priced feed accounting for the major cost of production, it is important to test the females in all lines, as well as the males, since they contribute 50 per cent of the genetics to the next generation.
Monitoring of Farrowing (III): Factors that increase stillbirths
Long farrowings increase mortality, and deaths occur above all in the last 1/3 of the delivery.
CLA during last week of gestation and lactation alters colostrum and milk fat composition and performance of reproductive sows
CLA administration to sows reduces backfat thickness loss during the lactation period and lets to higher piglet weight at weaning.
Urinary tract infections (UTI) in the lactating sows: is it a real problem?
UTIs are among the most frequent bacterial infections in the herd but they are rarely diagnosed or taken into consideration by veterinarians.
Effect of site of sperm deposition on fertility when sows are inseminated with aged semen
In the present study, intrauterine deposition of sperm did allow maintenance of farrowing rate, but did not ameliorate the adverse effect of inseminating aged sperm on litter size.
Denmark: status on 2013 legislation
Research undertaken in 2010 indicated that 70% of Danish producers now comply with EU legislation effective from January 2013, which will ban the use of traditional stalls for pregnant sows.
Folic acid affects performance of suckling piglets and sows during lactation
Supplementation with folic acid in the diets of lactating sows increases milk production, improves milk quality and the performance of piglets.
Management of farrowing objectives to achieve optimal piglet weight at weaning (II): batches every two weeks
The dispersion of matings described in the previous article is even more drastic on farms operating in bands over one week.
Stillbirth and preweaning mortality in litters of sows induced to farrow with supervision
To evaluate the benefits of induced farrowing with supervision on rates of stillbirths and preweaning mortality,a total of 159 multiparous sows were assigned in approximately equal numbers to two groups.
Hormone management V: Using altrenogest to restore the metabolic state of weaned sows
When gilts were mated at a little more than 100 kg, productivity at 2nd parity had a huge decline and the sow was never able to reach their maximum potential.
Lysine intake during late gestation on reproductive performance, colostrum composition, blood metabolites and hormones of multiparous sows
Higher lysine levels than those recommended by the NRC improve reproductive performance for multiparous gestating sows.
Replacement planning and altrenogest management using spreadsheets
In the last chapter on hormone management we looked at the advantages of “a la carte” altrenogest treatment as opposed to the 18 day treatment used to synchronize gilts.
Sow litter size is increased in the subsequent parity when lactating sows are fed diets containing omega 3 fatty acids from fish oil
Feeding omega 3 fatty acids as a way to increase the sows’ litter size.
Belgium: Status of sow stall conversion
Just under 36% of Flemish sow farms have so far converted, with an additional 13% having plans to do so.