Alex Blackburn-Smith, 34, of Demesne Road, Wallington, also denied two charges under the Animal Welfare Act for or failing to care adequately for the pit bull and a Neapolitan Mastiff dog.
He appeared at Croydon Magistrates' Court on Tuesday.
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| The Italian Mastiff believed to have mauled to death Barbara Williams in 2010 |
Mr Blackburn-Smith, 34, of Wallington, south London, will return to the court to face trial on September 16.
He was charged after an investigation in to the fatal attack on Barbara Williams, 52, in their home in Wallington on December 23 last year.
The volunteer from St Elphege's Roman Catholic Junior School died after she was mauled by an 8st (approximately 110 pounds) Italian Mastiff, which is understood to have belonged to Mr Blackburn-Smith, her landlord.
She was still struggling with the animal when police arrived at the scene and shot it dead.
A post-mortem gave her cause of death as severe haemorrhage to the head and neck.
Mr Blackburn-Smith was arrested on Christmas Eve on suspicion of manslaughter, and cultivating cannabis.
A puppy was also removed from the property.
Mr Blackburn-Smith was charged with posession of an illegal dog after it was found to be a pit bull type dog.
The animal welfare charges, under section nine of the Animal Welfare Act, relate to a third dog that was being kept at the property.
None of the charges relate to the mastiff which killed Mrs Williams.
(Guardian UK - June 17, 2011)
