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Stackyard News Nov 09

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    UK Studies Confirm Forage Chicory Potential

Separate ewe and lamb performance and lamb eating quality studies have confirmed the potential of forage chicory in UK sheep production, reports EBLEX, the industry body for beef and lamb levy-payers in England.

Forage Chicory

The latest on-farm trial in West Sussex used EID technology in the collection of data from 600 Southdown cross, Suffolk cross and Lleyn lambs finished on clover swards with either chicory or Italian ryegrass over the past season. It showed lambs on the chicory sward growing an average 20% faster than their contemporaries, mainly as a result of a two point D value advantage.

These results echo those of a University of Cumbria study at Newton Rigg in which North Country Mule ewes and their Texel-cross lambs were grazed for six weeks on plots planted with a standard grazing mixture with or without chicory.

Here, the lambs on the chicory mix gained about 20g/day (12%) more than their contemporaries to end the trial nearly 0.5 kg/head heavier. At the same time, the chicory-grazed ewes lost noticeably less weight than those on the non-chicory sward and maintained their body condition better, suggesting a worthwhile improvement in their nutrition.

Although faecal eggs counts were too low overall for any significant differences to be recorded, the Newton Rigg results also tend to support suggestions of a round worm control benefit from chicory grazing in both ewes and lambs.

Preliminary results from parallel work investigating the eating quality of lamb carcases at SAC in Edinburgh further indicate that chicory grazing does not appear to negatively effect the quality of the lamb produced. Indeed, they suggest it may even increase the juiciness of female lambs.

While these studies add to the growing body of evidence that UK sheep producers may be able to improve the performance of their stock by including chicory in their swards, EBLEX stresses the forage has to be managed carefully to maximise its persistence and nutritional value.

Specifically, chicory needs rather different management to grass-only swards. It prefers being rotationally grazed and is sensitive to damage in wet conditions. Drought tolerance makes it valuable for filling late summer forage gaps. But since it ceases growing when the soil temperature drops below 10oC it can not be relied upon for winter grazing.

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