What is negative of selectively breeding Dobermans and rottweilers together?

Answer 1

because

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EDIT BELOW

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They are actually both from the same parent breed, the doberman having been crossed repeatedly with greyhound to make a faster, dog for taking down fleeing subjects, while the Rottweiler is a defending dog which is built to stand it's ground and not allow an adversary to get past it to whatever or whomever it is protecting. Both dogs can be vermin (rabbit, rat squirrel) aggressive and individual dogs within either breed can be cat aggressive or not depending on their personality and upbringing. Neither dog is generally livestock aggressive unless intolerably raised by ignorant people.

The resulting dog will be a blend of the characteristics of the parent animal. The distinct differences between the two breeds can come out as a hodge podge.

DOBERMAN (bred for guarding and human "population management")

1. Inflexible "greyhound" hip allows faster running

2. Leaner, tightly muscled body can run fast

3. Tighter greyhound skin to prevent skin being grabbed

4. Shorter hair to prevent being grabbed and pushed off

5. taller lanky build

6. developed for long running take down fleeing human beings (yes really)

7. smaller, more narrow greyhound head

8. leaner jaw for snatch and snap biting (quick deep damage, take off fingers, inflict pain) They have a strong jaw but are better off in groups when it comes to pinning an intruder.

9. Rapid mouth attack with strong snapping, pain inflicting, wounding intention.

10. Can be very high strung and constantly stepping about like greyhounds often do.

ROTTWEILER (bred for guarding cattle against wild animals and driver work)

1. Fully flexible hip allows a fully human-like upright stance for higher jumping

2. Bulky powerful muscles for

3. Lose skin folds to protect against attacked by a pack of wild animals

4. Short shaggy hair, provided protection and padding and warmth in rough terrain.

5. Compact, burly build for powerful, short distance charge, stand its ground and block aggressors

6. Developed for stamina, strength, ability to turn quickly and climb over rough terrain.

7. Broad mastiff head

8. Large, powerful crushing jaw intended to grab, stop, shake animals attacking a herd. This jaw in tended to break bones and cause serious damage during a fight or hold onto another animal's throat and not let go until it is no longer a threat.

9. Slower mouth attack with more powerful bite with intention to tear and break.

10. Sure footed, stable stance, patient and laid back dog.

Okay, so you cross them. You could get a heavily muscled dog with a tiny snapping head, a massive headed skinny dog with a snapping jaw (hilarious looking). A well-muscled dog with a greyhound inflexible him and mid-sized head and a mediocre cross snapping/crushing jaw that does both about the same. I've seen several of these crosses. Only rarely do they produce a good looking dog. Most look pretty ridiculous and although they have a good temperament, seem a bit identity confused.

The cross can, however, produce a dog that is a faster, less high strung, less aloof mid-range dog, which is nice. Usually the build of the dog will be someone between both breeds. Which characteristics come out of the mix is a complete toss up. And whether the dog ends up looking disproportionate is also a toss up even within the same litter. But it is not a bad cross.