Thursday broker round-up - UPDATE

Advanced Medical Solutions: Investec upgrades from hold to buy, target lift at 97p.Antofagasta: UBS downgrades from neutral to sell, target cut from 1,150p to 1,050p.Aquarius Platinum: UBS cuts target from 160p to 155p, neutral rating unchanged.BHP Billiton: UBS cuts target from 2,600p to 2,500p, buy rating maintained.ENRC: UBS cuts target from 410p to 400p, buy rating kept.Glencore: UBS cuts target from 480p to 475p, buy rating unchanged.Kazakhmys:UBS downgrades from buy to sell, target slashed from 1,380p to 920p.Kingfisher: Jefferies ups target from 310p to 360p, buy rating kept.Land Securities: Jefferies reiterates buy recommendation and 811p target.Lonmin: UBS cuts target from 1,000p to 920p, sell raring kept.Petropavlovsk: UBS downgrades from buy to neutral, target cut from 1,070p to 650p.Polymetal International: UBS upgrades from neutral to buy, target cut from 1,100p to 1,060p.Redrow: UBS upgrades from neutral to buy, target lifted from 125p to 160p.Rio Tinto: UBS cuts target from 5,700p to 5,600p, buy recommendation unchanged.Standard Chartered: Nomura reiterates buy rating and 1,800p target.Tate & Lyle: Investec raises target from 610p to 640p, sell rating kept.TUI Travel: Jefferies maintains buy rating and 300p target.Xstrata: UBS cuts target from 1,500p to 1,475p, buy rating kept. Kingfisher Rio Tinto Tate & Lyle Standard Chartered Land Securities Antofagasta Advanced Medical Solutions Group