Friday broker round-up -UPDATE

African Minerals: Goldman Sachs upgrades to buy.AG Barr: Investec reiterates buy recommendation and 485p target; Shore Capital downgrades to hold; N+1 Brewing downgrades to hold.AstraZeneca: Nordea downgrades to sell.Barclays: Investec maintains buy rating and 240p target.BG Group: UBS cuts target from 1,730p to 1,620p, buy rating unchanged; Jefferies reiterates buy rating and 2,000p target; S&P Equity Research downgrades to hold.Capita: UBS ups target from 740p to 800p, buy rating kept.CSR: Jefferies ups target from 290p to 308p, hold rating kept.FirstGroup: Liberum Capital upgrades to buy.Intertek: Seymour Pierce downgrades to reduce.Invensys: Peel Hunt downgrades to hold; Barclays Capital downgrades to equal weight.Jardine Lloyd Thompson: Investec maintains hold rating and 692p target.Lamprell: JP Morgan Cazenove downgrades to underweight.Lonmin: UBS cuts target from 685p to 600p, sell rating kept.Moneysupermarket.com: UBS ups target from 150p to 160p, buy rating kept.National Express: Liberum Capital downgrades to hold.Next: Investec keeps buy rating and 3,500p target.Spectris: Investec cuts target from 1,900p to 1,715p, buy rating kept; Jefferies reiterates buy rating and 2,020p target.Pearson: Jefferies keeps hold rating and 1,265p target; Numis downgrades to hold from add.Reckitt Benckiser: Jefferies keeps hold rating and 3,640p target.Royal Dutch Shell: Goldman Sachs takes price target down to 2,840p from 2,980p, retains at neutral. Rolls-Royce: Exane BNP Paribas ups target from 800p to 880p, neutral rating kept.SABMiller: S&P Equity Research upgrades to hold.St James's Place: Credit Suisse upgrades to neutral, target lifted from 375p to 400p.Stagecoach: Liberum Capital upgrades to buy.Taylor Wimpey: Panmure Gordon upgrades to buy, 53p target kept.Tullow: UBS cuts target from 1,600p to 1,400p, neutral rating kept. Goldman Sachs lowers price target to 1,776p from 2,020p, neutral rating also kept.UBM: Investec maintains buy rating and 694p target.Unilever: Societe Generale downgrades to sell from hold.United Utilites: Investec ups target from 777p to 791p, buy rating kept.William Hill: Investec ups target from 330p to 345p, buy rating kept.BC