Thieves took the animal from Silver Star Pets in Pengam, along with dog leads, dog coats, fish tanks, pet food and dog grooming equipment worth £35,000.
The incident is one of four break-ins that occurred at the Britannia Enterprise Centre some time between Tuesday evening and Wednesday morning.
Police are appealing for information.
The other units broken into were Auto Stitch, George Monumental Masons and Pride and Groom where damage was caused to the doors but nothing was stolen.
A taxi sign, however, was also stolen from one of the vehicles parked at the centre.

Poysden and Mellor, both 25, have committed to the Bears until at least the end of the 2018 season after five Championship games each this summer.
Warwickshire chief executive Neil Snowball said: "Josh and Alex have big futures here at Edgbaston.
"They played important roles in 2016 and proved that they can compete at the highest level of the domestic game."
Poysden, who was already tied to Edgbaston to the end of 2017, has worked with the England Lions at the National Cricket Centre in Loughborough this autumn and is currently with the Lions squad at their training camp in Dubai.
He has made 16 one-day and 19 T20 appearances for the Bears since initially joining on trial after leaving Cambridge University ahead of the 2014 season.
He also made a late-season breakthrough in the County Championship this summer, taking 15 wickets in his five appearances, including a career-best 5-53 against champions Middlesex at Edgbaston.
Former Staffordshire player Mellor, who first joined the Bears at the end of the 2015 season on a one-year deal, has now signed a new two-year contract.
Mellor, whose late-season Championship appearances came as cover for the injured Tim Ambrose, has also played three limited-overs games.
Warwickshire are still without a director of cricket following the departure of Dougie Brown in October.
They have been strongly linked with a return to Edgbaston for former Bears boss Ashley Giles, who is still contracted to his current county Lancashire for another year.
BBC Sport understands that negotiations remain ongoing with Lancashire over Giles, who still lives in the Midlands.
Chief executive Neil Snowball reiterated last week that they would like to make an appointment before Christmas.

The comedian used insulting language on the Channel 5 dating show, suggesting the Essex resort is filled with "single mothers", The Sun reported.
Southend Council and Visit Southend responded on Twitter, suggesting O'Grady "hasn't visited for a while".
"Who would help us give him a tour of the best of Southend?" they tweeted.
In response, the Gleneagles Guesthouse tweeted an offer of a free night in its "premier suite with unrivalled views of the estuary".
O'Grady was reported to have called Southend a "shit hole" on discovering a couple had won a date in the town.
In March Channel 5 announced his selection as the host of the updated programme.
He was a close friend of the late Cilla Black, who presented the show on ITV during its run from 1985 and 2003.
The BBC contacted O'Grady's manager who said Channel 5 would release a statement later.

The wager on Murray - the competition's 5/2 second favourite, behind Novak Djokovic - would net a £175,000 return, including the stake.
Ladbrokes believes it to be the largest tennis bet ever placed in Scotland.
The company's Alex Donohue said: "Our Murray fan in Aberdeen has given his hero the ultimate vote of confidence with this record-breaking bet."
Murray ended Britain's 77-year wait for a men's singles champion in 2013 when he beat Djokovic in the final.
The British number one is due to get his campaign under way against Mikhail Kukushkin of Kazakhstan on Tuesday.
An African Grey parrot valued at £900 has been stolen from a pet shop in Caerphilly.
[NEXT_CONCEPT]
Warwickshire leg-spinner Josh Poysden and wicketkeeper Alex Mellor have signed contract extensions.
[NEXT_CONCEPT]
TV presenter Paul O'Grady has been invited on a tour of Southend-on-Sea after reportedly lambasting it during filming of the programme Blind Date.
[NEXT_CONCEPT]
A punter in Aberdeen has placed a bet of £50,000 on Andy Murray to win Wimbledon.