Page 46 of articles about genetics-reproduction

How common are genetic defects?

A survey was undertaken in a large anonymous European Breeding Company over a four year period ending March 2010. In total, 175843 pigs born were evaluated to establish the incidence of congenital defects and additional assessments were made at 95kg. More than half the total defects were identified in the growing and fattening period rather than at birth.

In search of the ideal batch (1/2)

During the last 10 years we have been trying to optimize the different Batch Management systems (BM), searching for the most effective system. We had come to the conclusion that each one of the different traditional BM options had their pros and cons, and neither is better or worse than the other. Electing the best system depends on the necessities and the calibration of space on each particular farm. However, we have recently “discovered” a new BM option that opens the door to new possibilities.

Chinese delegates visit East Yorkshire

21-Dec-2010
Staff from Yorkshire based pig breeding company JSR were “honoured” to host a group of business delegates visiting from the Xiangfan province of China. The delegates were visiting the North East to meet with JSR as part of European business trip encouraging investment in the Xiangfan Province.

Trouble-shooting herd fertility problems

Let us assume that the expected farrowing rate and live-born litter sizes are 90% and 12.5, respectively, but that current performance is 82% and 11.3, respectively. This means that too many sows are bred but failing to farrow and those that farrow are having fewer pigs.

Body reserve mobilization during lactation in first parity sows and its effect on second litter size

29-Nov-2010
The aim of this study was to evaluate the influence of sow body reserves at weaning and body reserve losses during the first lactation on the second litter size (SLS). A number of 1222 females which reached the second parity without failures such as return to estrus after insemination, abortion or failure to farrow, were analyzed. Measurements of body weight (BW), backfat thickness (BT) and body condition score (BCS) were taken within 24 h after farrowing and on the weaning day.

Russia - Temporary restrictions on import of breeding animals from a number of Danish farms

24-Nov-2010
In 2010 the Rosselkhoznadzor authorized import of 1360 breeding pigs from Denmark to the Belgorodskaya Oblast. The animals were imported in three consignments accompanied with phytosanitary certificates issued by the National Veterinary Service of Denmark according to which the animals were clinically healthy. 320 animals with lesions on legs and limp were detected in the course of the daily clinical examination in the quarantine period.