Is there a genetic link to being a very good boy?

Flash is not yours Ordinary puppy. A yellow Labrador, named after the first British guide dogs in 1931. She is playful, affectionate and likes to learn new commands. Flash herself participated in a well-designed program that required two years and nearly $50,000 to train her to be a guide dog for the blind and visually impaired. Her temporary caregiver, Melanie, will ensure that she maintains a healthy daily routine: walks in different environments twice a day, rides the train here, and goes to the mall there to adapt to other people. But Melanie has completed one of her most important tasks: when Flesch was five months old, she wiped the puppy’s cheeks and mailed the saliva to a team of researchers who were trying to decipher the dog. The link between heredity, health and behavior.

Due to health or behavioral issues, about half of the dogs raised for coaching ultimately did not complete the job.Modern dogs suffer from many genetic diseases, which are a side effect of separating and separating breeds Choose them to get the desired characteristicsSome of these purebred dogs may have the right appearance, but do not have the right temperament to be a working dog. But what if the breeder can predict what is a good guide dog and choose unpopular traits to ensure that they will not be passed on to the next generation?

More than 500 features Dogs with genetic conditions similar to humans have been described-both species may have cancer, eye disease, or hip dysplasia, to name a few. Cheap DNA test Because canines can screen for changes in a single gene, called mutations. However, the reasons for many other situations are more complicated. They may be related to multiple genes or environmental factors, such as exercise, food, dust, or mold spores. “We absolutely want to master complex characteristics,” said Tom Lewis, head of canine genetics for guide dogs. The charity breeds approximately 1,000 puppies each year, and they spend their first year in a volunteer’s home before receiving formal training.

Before joining Guide Dogs in January, Lewis worked for the Animal Health Trust and Kennel Club in the UK, where he researched the genetic risk of hip dysplasia in breeds registered with the club. Dysplasia is a genetic disease that is difficult to diagnose and treat.It is a deformity of the hip joint that occurs during growth, despite trauma, overweight or Lack of muscle strength Will make the condition worse. For example, puppies raised in homes with hardwood floors may build fewer muscles in their legs-they cannot gain traction on the floor, and they will slip and slide, which is very important for their small joints. hard. The persistent pain in adult dogs will eventually turn into lameness and arthritis, making them unsuitable for coaching or helping people with disabilities.

Health is the key to guide dogs, but temperament is equally important. They need to lead their masters around obstacles and others, while remaining calm and obedient. They need to resist chasing squirrels or getting too excited when meeting other dogs. Not every breed has what it needs. For example, the typical Cocker Spaniel is smart and affectionate, making it a great choice for families, but it’s too easy to get excited. “Even if you give them the same training, you would never expect spaniels to become guide dogs. They are too inappropriate in temperament, which may be a genetic factor,” Lewis said.

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