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| Pegg, Vanessa; Pearce, Bruce. |
| Organic standards and aspirations are moving towards the removal of synthetic amino acids from organic poultry rations. Sheepdrove Organic Farm has already removed synthetic amino acids from the rations fed to its chickens. Data was collected on live and dressed weight of processed birds, before, during and after the removal of synthetic amino acids from the ration. There does appear to be a detrimental effect on the final weight (both live and dressed) of birds raised without synthetic amino acids although this loss of weight has been overcome with the increase in production time from 10 to 11 weeks. |
| Tipo: Report |
Palavras-chave: Feeding and growth. |
| Ano: 2004 |
URL: http://orgprints.org/10296/1/poultry_amino_acids_final_report.pdf |
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| Pegg, Vanessa; Pearce, Bruce. |
| Sheepdrove Organic Farm wanted to know whether the source of day old chicks and brooding and production period would have an impact on their enterprise. Sheepdrove Organic Farm wanted to know whether the source of day old chicks and brooding and production period would have an impact on their enterprise. An experiment was undertaken using two different sources of day old chicks and on two sites. 1000 day old chicks from Maurice Millard were exchanged with 1000 organic chicks from Devon Foods. These chicks were then put through the Sheepdrove (SOF) and Devon Foods Bradbury Barton (BB) organic production systems and weighed every week until depletion. The two systems were not identical and there were slight variations between the SOF and BB systems. BB had... |
| Tipo: Report |
Palavras-chave: Poultry. |
| Ano: 2003 |
URL: http://orgprints.org/10293/1/chicks1.pdf |
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| Pegg, Vanessa; Aspray, Claire; Pearce, Bruce. |
| Sheepdrove Organic Farm wanted to know whether the performance of the Lloyd Maunders (757) birds would differ from that of their current breed the Maurice Millard (257) and whether chicks sourced from an organic parent flock would perform differently to those from a conventional parent flock. An experiment was undertaken using two different sources of day old chicks, 1000 day old Maurice Millard (257) and 1000 day old Lloyd Maunders (757). These chicks were then put through the Sheepdrove (SOF) organic production system and 30 random birds were weighed every week until depletion, at 11 weeks. |
| Tipo: Report |
Palavras-chave: Feeding and growth. |
| Ano: 2004 |
URL: http://orgprints.org/10294/1/Lloyd_Maunder_Trail_final_.pdf |
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