The Gran Mastín de Borinquen, also known as the Puerto Rican Mastiff, Mastín Borincano, Becerillo de Borinquen and Perro Barsino de Hacienda, is the only breed native to the island of Puerto Rico.
The Labrador Retriever, also Labrador, is a type of retriever-gun dog.
 The Labrador is one of the most popular breeds of dog in the United Kingdom and the United States.
A labradoodle ( ), also known as a labrapoodle ( ) is a crossbreed dog created by crossing the Labrador Retriever and the Standard, Miniature or Toy Poodle.
 The term first appeared in 1955, but was not popularized until 1988, when the mix began to be used as a hypoallergenic guide dog.
 Currently, they are not considered a breed by any major fancier and breeder organization.
 Not all labradoodles are hypoallergenic, but it is a quality that many look for and appreciate in this type of crossbreed.
Buddy (August 7, 1997 – January 2, 2002), a male chocolate-colored Labrador Retriever, was one of two pets kept by the Clinton family while Bill Clinton was President of the United States.
 The Clintons' other pet was a cat named Socks.
The Labrador Husky is a spitz type of dog that was bred for work as a very strong, fast sled dog; it is a purebred originating from Canada.
 Although the breed's name may be baffling, it is "not" a mix between a Labrador Retriever and a husky.
 The breed is very little known, and there are no breed clubs that currently recognize it.
The Chesapeake Bay Retriever is a large-sized breed of dog belonging to the Retriever, Gundog, and Sporting breed groups.
 Members of the breed may also be referred to as a Chessie, CBR, or Chesapeake.
 The breed was developed in the United States Chesapeake Bay area during the 19th century.
 Historically used by area market hunters to retrieve waterfowl, it is primarily a family pet and hunting companion.
 They are often known for their love of water and their ability to hunt.
 It is a medium to large sized dog similar in appearance to the Labrador Retriever.
 The Chesapeake have a wavy coat, rather than the Labrador's smooth coat.
 They are described as having a bright and happy disposition, courage, willingness to work, alertness, intelligence, and love of water as some of their characteristics.
This list of Labrador Retrievers covers notable individual dogs that belong to this breed.
 The Labrador retriever is the most popular breed of dog (by registered ownership) in both the United States and the United Kingdom.
 The breed is exceptionally affable, intelligent, energetic and good natured, making them excellent and popular pets, companions and working dogs.
 They have a high work ethic Common working roles for Labradors include: hunting, tracking and detection, disabled-assistance, carting, and therapy work.
 Approximately 60–70% of all guide dogs in the United States are Labradors.
Isabelle Dinoire (1967 – 22 April 2016) was a French woman who was the first person to undergo a partial face transplant, after her Labrador retriever mauled her in May 2005.
 She underwent a 15-hour operation in November 2005 in which surgeons transplanted the nose, lips and chin from a brain-dead donor at a hospital in Amiens.
 She died at age 49 in April 2016, though her death was not announced until more than four months later.
João Fernandes Lavrador (] ) was a Portuguese explorer of the late 15th century.
 He was the first modern explorer in the coasts of the Northeast of Northern America, including the Labrador peninsula, which bears his name.
 The popular dog breed Labrador Retriever is named after the peninsula and thus by effect also bears his name.
Shōnen to Inu (少年と犬 ) is a Japanese manga written by Akira Itō and illustrated by Yoshihiro Takahashi.
 The manga was re-issued in 2001 under the name Ginga no Inutachi [Shōnen to Inu] Remix (銀牙の犬たち [少年と犬] リミックス ) .
 It has six different stories about six different dog breeds: Golden Retriever, Shiba Inu, Siberian Husky, German Shepherd, Labrador Retriever and Great Pyrenees.
 All stories are mostly about the relationships between the dogs and a boy or a young man.

Question: Which type of don is available in more countries, Gran Mastín de Borínquen or Labrador Retriever? 
Answer: The Labrador Retriever