Stocks to watch at noon on Thursday

Stocks to watch on the Australian stock exchange at noon on Thursday:

ANR - ANATARA LIFESCIENCES - down 13 cents, or 26 per cent, at 37 cents

A biotech firm that's using a pineapple root extract to treat diarrhoea in pigs has begun trading on the Australian share market.

BLD - BORAL - down 8.00 cents, or 1.61 per cent, at $4.48

CSR - CSR - down 6.00 cents, or 1.83 per cent, at $3.21

The competition watchdog has warned a proposed brick-making joint venture between building products makers Boral and CSR is likely to hurt builders and consumers.

ILU - ILUKA RESOURCES - down 27 cents, or 3.49 per cent, at $7.46

Iluka Resources says it plans to re-start a Western Australian mine due to what it says is an improving mineral sands market.

TEN - TEN NETWORK HOLDINGS - steady at 19 cents

Struggling television business Ten Network Holdings has called on the federal government to reform media ownership laws after posting its third consecutive full year loss.

WPL - WOODSIDE PETROLEUM - down 2.00 cents, or 0.05 per cent, at $38.98

Woodside Petroleum has increased its full year production guidance after a better-than-expected September quarter.