Dairy Crest, which is in advanced discussions to sell 50% of Wexford Creamery to Wexford Milk Producers for about €9m, is one of the best performers in the FTSE 250.Turning to the fallers, the fall-out from the banking crisis is still hampering growth at financial services and healthcare software provider Misys but the company is encouraged by growth in its order intake.Electrical goods retailer DSG International, music and book retailer HMV, baby products specialist Mothercare and car parts and bicycle group Halfords are all lower.DSG said it was trading ahead of expectations in all markets as it posted an 8% increase in like-for-like sales for the 12 weeks to January 9.HMV posted a fall in like-for-like sales over the Christmas period as its Waterstone's book store underperformed, but the firm saw a rise in total sales as it benefited from the demise of rivals such as Zavvi.Baby products retailer Mothercare saw a 4.2% rise in like-for-like sales in the 13 weeks to January 8 after a strong Christmas. Total sales were up by 4.6%, with the UK seeing a 2.5% rise, international sales up by 9.3% and home delivery division Mothercare Direct seeing a 19.5% jump.FTSE 250 - RisersEaga (EAGA) 148.20p +5.41%Fenner (FENR) 197.20p +4.89%Hays (HAS) 111.10p +4.81%Renishaw (RSW) 612.00p +3.47%Weir Group (WEIR) 818.00p +3.41%Dairy Crest Group (DCG) 347.80p +2.96%Aegis Group (AGS) 121.30p +2.80%Amlin (AML) 380.40p +2.76%Melrose Resources (MRS) 319.20p +2.64%Logica (LOG) 124.60p +2.64%FTSE 250 - FallersHMV Group (HMV) 84.20p -8.23%Premier Foods (PFD) 34.59p -7.49%DSG International (DSGI) 35.10p -6.47%Sports Direct International (SPD) 93.50p -4.83%Mothercare (MTC) 625.50p -4.58%FirstGroup (FGP) 398.00p -4.12%Debenhams (DEB) 70.95p -4.06%Inchcape (INCH) 28.60p -3.93%Misys (MSY) 213.70p -3.26%Halfords Group (HFD) 408.60p -3.22%