| Farm Targets per 100 Sows |
Reproduction |
TARGET |
INTERFERENCE |
| No. of gilts available for service |
6 |
<5 |
| Age at first service days |
210 |
>240 : <200 |
| No. of sows productive |
100 |
<95 |
| Weaning to service interval |
5 days |
> 7 days |
| Repeat matings Regular returns (18-24 days) |
8% |
>9% |
| Irregular returns (other times) |
3% |
> 4% |
| Empty days per sow |
12
|
> 14 |
| Abortions |
< 1% |
> 1.5% |
| Sows Not In Pig (NIP) after 80 days |
< 1% |
>2% |
| Culled pregnant |
1% |
>2% |
| Deaths pregnant |
1% |
>2% |
| Farrowing rate |
87
|
< 82 |
| Vaginal discharge - > 7 days post-service |
1% |
>1.5% |
| Sows culled per year |
38% |
>42% |
| Sow parity at culling |
6-7 |
>8 |
| Sow deaths per year |
<5% |
>5% |
| Number of boars, no AI used |
5 |
<5 >6 |
| AI + Natural service |
3 |
<3 >4 |
| Matings per week per boar |
4 |
<2 or >6 |
Farrowing House Performance |
TARGET |
INTERFERENCE |
| Total born/sow |
11.5 |
<11 |
| Pigs born
alive/sow |
10.9 |
<10.4 |
| Stillborn rate |
<
7% |
>10% |
| Piglets
mummified |
<1.5% |
>2.5% |
Litter scatter (sows with < 9 piglets)
(gilts with < 9
piglets) |
<12%
< 15% |
>15%
> 18% |
| Percentage weaned |
90 |
86 |
| Preweaning losses (28 days) |
10% |
<14% |
| Piglets weaned per litter |
10 |
<9.6 |
| Litters per sow per year |
2.35 |
<2.3 |
| Piglets weaned per sow per year |
23.5 |
<22 |
Feeding Herd Performance |
TARGET |
INTERFERENCE |
| Percentage sold |
97 |
<95 |
| Postweaning losses (7 to 95 kg) |
3% |
<5% |
| Pigs sold per sow per year |
23 |
<21.5 |
Feed Parameters |
TARGET |
INTERFERENCE |
| Sow feed in tonnes per year |
1.1in : 1.2out |
>1.2 in : >1.3 out |
| Total tonnes farm feed per sow |
5 |
|
| Food conversion (4 to 100 kg) |
2.2 |
>2.4 |
| Daily gain (10 to 90 kg) |
570g/day |
<520 |
| Days to market (90 kg) |
150 |
160+ |
| Killing out (percentage) |
75% |
>72% |
| A 100 sow unit producing 22 pigs per sow per year sold at 70 kg dead weight produces enough pig meat to feed 6,500 people per year in the UK (MLC 1996) |
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