Reduce feed conversion ratio in the sow unit by 10 %

Transcription

1 Reduce feed conversion ratio in the sow unit by 10 % Pig Congress Herning October 24, 2012 Projektchef Gunner Sørensen, Nutrition & Reproduction

2 FCR per sow/year (Fusow) Lactation period (days/litter) Source: DB Tjek Den Lokale Svinerådgivning

3 FCR per sow/year (Fusow) Weaned pigs per sow/year Source: DB Tjek Den Lokale Svinerådgivning

4 Outline Focus on feed conversion ratio and productivity without compromising animal welfare Feed conversion ratio in different sow farms - test How was it done? What did the results show us? Steps Gilts Managing body condition Feed curves Conclusion

5 8 farms ESF, feeding stall per sow and floor/long trough Purchased and mixed on-farm Liquid feed and dry feed From 450 to 1,700 sows per farm

6 Trial set-up Before-period (3 months) - FCR calculated at section level - Fixed litters (litter results, birth weight, weaning weight, weight) Implementation period (9 months) - Preparing action plan together with local advisors - Implementing action plan and follow up (local advisor) - Is action plan efficient (VSP) After-period (3months) - As before-period - Final meeting on the farm where data and results are discussed (VSP)

7 Action plans Focus Farm Feed dose in empty period Body condition in service/control units x x Body condition in gestation unit x x Feed curves in gestation unit x x Management of oestrus in gilts x x Feeding in farrowing unit x x Feed curves in farrowing unit x x Calibration of ESF stations x Management in farrowing unit x Feed formulations USK culled sows x

8 Growth from 60 to 125 kg in gilts No effect on litter size or longevity of varying daily gain ( g a day) in the period kg Effect of age at first service on litter size. Increasing litter size up to days of age, after that no increases In general Only use normal gilts where age and size/weight match For each batch of sows, have a batch of healthy gilts ready for service

9 What is the right body condition? Palpate the sows or scan backfat!!

10 10 Body condition - evaluation after service, after 30 days, after 70 days and at farrowing

11 Body condition (palpation) compared with backfat scanning Evaluation Min Av Max Min Av Max Min Av Max Min Av Max Krautkramer Leanmeter

12 12 Backfat thickness at farrowing Group Backfat thickness Less than 15 mm Between 15 and 19 mm More than 19 mm Parity > > >5 Sows with shoulder lesion, % Stillborn / litter

13 13 Backfat thickness at weaning Group Backfat thickness Less than 12 mm Between 12 and 15 mm More than 15 mm Parity > > >5 Sows Totalborn / litter

14 The pig stomach White part Cardia (mucus) Fundus (mucus, hyd. acid, enzymes etc.) Pylorus (mucus) VIDENCENTER FOR SVINEPRODUKTION

15 15 Effect of gastric changes on sow productivity Pellets Coarse-grained feed 10 0 No Some Large

16 Example - Action plan farm 5

17 Results - feed conversion per sow/year 1700 Feed conversion ratio per sow/year (FUgp) Before Ater 1200 Farm 1 Farm 2 Farm 3 Farm 4 Farm 5 Farm 6

18 Results - FCR in details FCR at section level Directly measurable where changes set in Example from farm 1 FUsow per sow/day Before After Change Gilt unit % Service/control unit % Gilt training % Gestation unit % Farrowing unit %

19 Model calculations - an estimate of a sow s daily yield Daily milk yield (kg milk a day) Top: 14.6 kg Top: 12.0 kg Top: 9.8kg 10 grise á 7,5 kg 12 grise á 7,5 kg 14 grise á 7,5 kg 0 Days post-farrowing Kilde: AV Hansen, AB Strathe, E Kebreab, J France and PK Theil (2012): Predicting milk yield and composition in lactating sows - A Bayesian approach. Journal of Animal Science.

20 Model calculations - an estimate of a sow s total yield Total milk yield (kg milk) Total: 282 kg Total: 341 kg Total: 233 kg 10 grise á 7,5 kg 12 grise á 7,5 kg 14 grise á 7,5 kg 50 0 Days post-farrowing Kilde: AV Hansen, AB Strathe, E Kebreab, J France and PK Theil (2012): Predicting milk yield and composition in lactating sows - A Bayesian approach. Journal of Animal Science.

21 Energy for the pigs - daily energy from milk Daily energy from milk (FUgp) Top: 8.8 FUgp Top: 7.2 FUgp Top: 5.9 FUgp 10 grise á 7,5 kg 12 grise á 7,5 kg 14 grise á 7,5 kg 0 Days post-farrowing Kilde: AV Hansen, AB Strathe, E Kebreab, J France and PK Theil (2012): Predicting milk yield and composition in lactating sows - A Bayesian approach. Journal of Animal Science.

22 Results - weight loss in farrowing unit Percentage of sows 22% 20% 18% 16% 14% 12% 10% 8% 6% After Before 4% 2% 0% Weight loss adjusted for foetuses + amniotic fluid etc.) Example from farm 1

23 Results - weaned pigs per sow/year Weaned pigs per sow/year Before After 25 Farm 1 Farm 2 Farm 3 Farm 4 Farm 5 Farm 6

24 Results - sow mortality Sow mortality (%) Before After Farm 1 Farm 2 Farm 3 Farm 4 Farm 5 Farm 6

25 Farmers results We now have smaller and stronger sows less legproblems and culled sows We use less feed We wean more pigs/litter now 14.0 pigs (current figures) More pigs/sow/year 32.3 pigs (current figures) Limited amount of time spent on evaluation of body condition

26 Conclusion Feed consumption can be reduced without negatively affecting productivity and animal welfare Requires analysis of FCR at section level Systematic and consistent work Management of body condition Feed curves in all units Number of gilts and age at service

27 Questions Roads to growth focus on expenses and productivity