From the Wallingford Pig Study Group to PIC
In 1955, a group in the United Kingdom called the Wallingford Pig Study Group was concerned that the traditional purebred breeders were not producing the right pig for future markets.
Page 42 of articles about genetics-reproduction
TOPIGS Philippines imports top genetics for San Miguel Foods, Inc.
TOPIGS Philippines recently imported 1111 top SPF genetics from Canada to set up a new nucleus farm for San Miguel Foods, Inc. in the Isabela province of the country.
Varying creep feed duration affects pre-weaning and post-weaning performance and behavior of piglet and sow
Creep feed initiated from day 5 and 10 reduce diarrhea scores in piglets and the estrus interval in sows.
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.
Weaning on Friday and using altrenogest to avoid weekend farrowings; is it possible?
What if we were to wean on Friday and were able to block farrowings for 2 days? The bulk of farrowings would be concentrated on Monday.
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.
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.
Clinical case: Abortion in young sows
Abortion occurred in 90% of first parity sows and in 10% of second parity sows.
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.
TOPIGS research: SNPs for more uniform and bigger litters found
TOPIGS researchers have found a series of SNPs that define a genetic region which explains genetic variation for litter size and uniformity between litters.
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.
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.
Seasonal effects on oocyte developmental competence in sows experiencing pregnancy loss
The aims of this study were to determine whether WSI and season are associated with changes in oocyte developmental competence in sows experiencing early and late pregnancy loss.
Management of hormones (IV): Using altrenogest
In this chapter the use of progesterone derivatives to modify the duration of estrus in sows is explained.