2013年7月11日 · Sow culling rates have a direct correlation to the economic efficiency of a breeding herd. A good culling policy with a sound understanding of when to cull is an integral part of herd management. It maintains a steady flow, replacing the less productive sows on a regular basis, without disrupting the overall performance of the breeding herd ...

The decision to cull a sow from the breeding herd typically occurs after weaning due to poor lactation performance, lameness or if she fails to breed or conceive.

Sow culling is an important practice in commercial swine production because it is directly associated with the economic efficiency of the breeding herd. This study was conducted to analyze the reasons for sow culling and quantify the factors affecting culling in crossbred Landrace and Large White sows under tropical climate.

2019年8月29日 · There are two primary reasons for feeding cull sows: to allow them time to dry up and thereby avoid any discount on wet sows, and to gain back some of the weight lost during lactation. Both are good reasons. Light sows often will receive a larger discount for being wet than will heavy sows and usually will regain lost weight faster on less feed.

Re-sults of this analysis indicate that the most eco-nomical time to cull a sow is after her eighth or ninth parity. This results in a breeding herd comprised of 18 to 20% gilts and a herd aver-age parity of 3.5 to 4.0. However, the addi-tional benefits of keeping a sow beyond about six parities are relatively small.

Making a decision to cull a sow The decision to cull a sow is one of the most important management decisions you can make. The first question should be: “Is the welfare of the sow compromised?” If so then the sow must be hospitalized, destroyed or culled immediately. However, if the sow is not compromised – the second question should be:

2010年3月25日 · Once the decision to cull a sow from the breeding herd has been made, a producer must decide to either immediately market the sow or to increase marketable body weight by feeding her for a period of time.

2015年8月1日 · Sow culling rates have a direct correlation to the economic efficiency of both breeding herd and commercial herd. Analyzing the reasons of sow culling could lead to improve production efficiency of farms.

Knowing when to cull sows and why is an important part of herd management. This information will help you develop a good culling policy.

Some of the common questions pork producers ask are, What do I do with my cull sows? Should I move them to market as soon as possible or should I feed them for a few weeks?