BUZZ-Travis Perkins: falls as MS questions growth prospects

** Travis Perkins (LSE: TPK.L - news) among most active on a thinly traded FTSE 100, down as much as 2 pct after Morgan Stanley cuts to "underweight" from "equalweight"

** Brokers says stock is expensive given growth prospects: Expensive, given growth prospects; trailing PE of 19x at its highest level since level since at least 1998

** MS forecasts slowest EPS growth for Travis Perkins in the building materials sector

** Expects residential construction growth for the UK as a whole to fall from 24 pct to 5 pct in 2015, fall 3 pct in 2016

** Third most traded on FTSE 100 by average 30-day volumes (RM (LSE: RM.L - news) : alasdair.pal.thomsonreuters.com@reuters.net)