Garth Pig Stockmanship Standards

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Pig Farm Targets

Section: Stockmanship Standards

Farm Targets

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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Buy Pig Stockmanship Standards Extracted from Garth Pig Stockmanship Standards*
written by Dr John Carr.

You can buy this book HERE
*Published by 5M Enterprises Limited


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