Zebre 20-40 Glasgow Warriors

George Horne got Glasgow's fourth try just before the interval

Glasgow Warriors maintained their dominant position at the top of their Pro14 conference with victory at Zebre.

The visitors had secured a bonus point by half-time, with Matt Fagerson, Lee Jones and George Horne all crossing in addition to a penalty try.

Renato Giammarioli went over early for the hosts and Zebre's Maxime Mbanda and Tommaso D'Apice registered amid continued Glasgow scoring.

Jones and Nick Grigg took Warriors' tally of tries to six.

Dave Rennie's side have now won 12 of their 13 league matches this season, picking up 10 bonus points along the way.

Zebre slip below Ospreys - narrow victors at home to Cardiff Blues - into bottom place in Conference A.

It did not take Glasgow long to register in Parma as Fagerson touched down off a maul and Finn Russell converted.

But Zebre responded quickly, with Giammarioli bursting through a gap off Tommaso Castello's offload and Carlo Canna adding the extras.

Adam Ashe, back after a 10-week absence, came on for the injured Chris Fusaro and it was the replacement's pass that sent Jones through between the posts following a scrum on the left. Russell again converted a straightforward kick.

A long-range penalty attempt by Canna was wide and Warriors moved further into the lead with a penalty try as Zebre infringed at a maul.

After Marcello Violi successfully kicked Zebre's next penalty, Ashe again played an important role as Glasgow stretched their lead before the break, Horne weaving his way over the line and Russell this time firing the conversion attempt wide.

Zebre sought to redress the balance, with Mbanda springing forward to cross, but Violi was unable to convert from wide on the left.

Glasgow responded, Ruaridh Jackson sending Jones in to score his second try in the left corner and Russell converting.

After a series of mauls near the line, Zebre eventually touched down through D'Apice, but Canna kicked wide from right.

A grubber kick from Russell set Glasgow on their way to their final try as Huw Jones touched on for Grigg to run through.

Russell kicked confidently to make it 10 points with the boot.

Zebre: Padovani, Parata, Bisegni, Castello, Venditti, Canna, Violi; Lovotti, D'Apice, Bello, Sisi, Biagi, Mbanda, Meyer, Giammarioli.

Replacements: Luus, De Marchi, Tenga, Bernabo, Minnie, Palazzani, Azzolini, Gaffney.

Glasgow Warriors: Jackson, L Jones, H Jones, Grigg, Matawalu, Russell, G Horne; Allan, MacArthur, Halanukonuka, Peterson, Gray, Harley, Fusaro, M Fagerson.

Replacements: Malcolm, Kebble, Rae, McDonald, Ashe, Pyrgos, P Horne, B Thomson.