Swine Production Management - Breeding

Anatomy of the sow and gilt Gilt selection
Analysis of returns to service Pregnancy diagnosis
Breeding Programs advice on design and insemination Number of females to breed
Detecting heat Signs of estrus
Diseases of the reproductive tract Stockpeople
Enhancing litter size Timing of the mating
Estrus behavior patterns Weaning to breeding interval
Farrowing rate  

 

Csum Chart
 
Service Week
 

Week of gestation

Farrowing
house weeks

Service week
[
Heat check
(Weeks 3-6)		 Order new gilts
(Weeks 10-14)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5
1 12 12 12 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 10 10 10 10 24 12
2 12 12 12 11 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 25 12
3 12 12 12 12 11 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 26 12
4 10 10 10 9 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 27 10
5 12 12 12 12 11 11 11 11 11 9 9 9 9 9 9 9 9 9 9 9 9 9 28  
6 12 12 12 11 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10   29  
7 12 12 12 12 11 11 11 11 11 11 11 11 10 10 10 10 10 10 10 10     30  
8 12 12 12 12 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11       31  
9 12 12 12 12 11 10 10 10 10 10 10 10 10 10 10 10 10 10         32  
10 12 12 12 11 10 10 10 10 10 10 10 10 10 10 10 10 10           33  
11 13 13 13 12 11 11 11 11 11 11 11 11 11 11 11 11             34  
12 12 12 12 12 11 11 10 10 10 10 10 10 10 10 10               35  
13 12 12 12 12 11 10 10 10 10 10 10 10 10 10                 36  
14 12 12 12 11 10 10 10 10 10 10 10 10 10                   37  
15 12 12 12 11 10 10 10 10 10 10 10 10                     38  
16 12 12 12 12 11 11 11 11 11 11 11                       39  
17 12 12 12 12 11 11 11 11 11 11                         40  
18 12 12 12 10 9 9 9 9 9                           41  
19 12 12 12 11 11 11 11 11                             42  
20 12 12 12 11 10 10 10                               43  
21 12 12 12 10 10 10                                 44  
22 12 12 12 11 11                                   45  
23 12 12 12 10                                     46  
24 12 12 12                                       47  
25 12 12                                         48  
26 12                                           49  
27                                             50  

Use of the Csum:
The Csum is a visual aid to overall management and can help to bring the whole farm together as it will predict output throughout the various components of the farm.

  1. Fill in each weeks results at the end of each week (day after the weaning day is day 1).
  2. When a breeding female falls out of the system record this is a different color (for example: red).
  3. Once you are below the target farrowing rate change color again (for example: blue.)
  4. On a quick visual examination of the reporting sheet shown we have too many 4 week returns, but few fall outs after week 5.