The swine breed with erect ears is Berkshires, normally black or white.
Boxer
A Border Collie has erect and/or semi-erect ears. Or floppy ears.
all of them except doberman pinscher The boxer and great danes ears also have to be cropped and taped for them to stand up. The only breed listed with naturally erect ears is the Siberian husky
Popular breeds of swine vary from region to region but the most commonly raised breeds of swine in the United States are: Yorkshire - All white with erect ears, commonly referred to as "The Mother Breed" due to their popularity in American livestock and their maternal instincts Hampshire - Black with a white belt across their upper midsection (like an oreo), and erect ears Landrace - All white with large dropping ears and often recognized for their long bodies Berkshire - All black with four white feet (often called socks) and a white snout. Large erect ears as well Duroc - Entire body is a brick-red color with floppy ears Chester White - almost identical to the Landrace, Chester Whites have all white bodies with droopy ears, but the differentiation is made in the droopiness of their ears. Landrace ears are very flattened and flop down over their eyes while Chester White ears are much smaller so they perk up more than a Landrace and generally dont cover their faces as much Poland China - very similar to Berkshire but with floppy ears Spot - Much like its name, it is spotted black and white. Generally the skin is mostly black with white spots, but there is no set pattern Crossbreed - Although not recognized as a true breed of swine, crossbreeds make up a majority of bred swine throughout America. The most commonly recognized crossbreed is the 'Bluebutt' known for its primarily white body with smaller black spots along the back or hind regions and generally erect ears. Crossbreeds may consist of any mix between two pure breeds, however, and may have any pattern. This is just a small list of breeds of swine, but the most commonly bred in North America.
A Hampshire is a breed of swine or pig
varies, but should be erect by 6 months
A pietrain pig is a medium-sized spotted pig. They generally white with a black spotted pattern. There is usually a ring of pigment that is lighter in color surrounding each spot. Their ears are usually held erect.
There is a chance that the ears will be 'soft' but chances are it will have erect ears.
Durocs are known to be the more aggressive breed of swine, they are pure red colour, with partially droopy ears, they are medium length and have high muscling throughout their body.
Originally EBT ears were floppy and in the Victorian era and just before, they were cropped to give them the pointed look, partly for appearance and partly because the breed was used for bull baiting and dog fighting. Since ear cropping has been banned, the erect ear was bred into the breed. The ears start off floppy and folded at the tip when still a pup, but gradually, as the pup matures, the blood vessels in the eras stiffen, allowing them to stand erect. The ears are mostly 'relaxed' erect. If an EBT sees or hears something of interest,he becomes alert and the ears stand completely erect. When the ears bend round the back of the head, the EBT is most probably unsure/wary.You can get EBT's whose ears do not become erect during puppyhood and stay floppy during adulthood. However, this is considered to be a 'fault'.
duroc
There are breeds of hogs with black on them, or they are mostly black. The Hampshire breed are primarily black with a belt of white. Their ears are small and erect. THey are bred for meat quality. Poland China hogs are black with white markings on face and feet. They are not a extremely popular breed, but they are still bred in the u.s. and europe. Berkshire hogs are a large meaty breed and are black with some white markings on faces and feet. They have a large erect ear and are bred for their disposition and mean quality.