piglet.
A pig is either male or female. A male intact pig is called a boar, a male castrated pig is called a barrow, a mature female is called a sow and an immature female is called a gilt.
An immature male hog is called a "boar." This term typically refers to a young male pig that has not yet reached sexual maturity. Once a boar matures and is used for breeding, it may simply be referred to as a "male pig" or "breeding boar." In some contexts, younger males may also be called "piglets" until they grow older.
Known as a boar
A castrated male pig is known as a barrow.
Ram lamb - if it has been castrated it is known as a wether lamb.
A male pig is called a boar, while a female pig is called a sow.
gilt
Pig weather doesn't exist. A wether is a castrated male goat or sheep, a castrated pig is known as a barrow.
A male desexed Guinea Pig is called "Neutered", and a female desexed Guinea Pig is known as "Spayed".
Gilt
There is no gender discrimination for immature dogs. Male and females are both called puppies or whelps.
jake