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Breeding Considerations - Breeding-Where do Deaf Whites Come From?
|Breeding ||Genotypes ||Offspring |
|Black x Black ||mmhh x mmhh ||100% Black |
|Black x BlackH ||mmhh x mmHh ||50% Black, 50% BlackH |
|Black x Merle ||mmhh x Mmhh ||50% Black, 50% Merle |
|Black x Harlequin ||mmhh x MmHh ||25% Harle, 25% Merle, 25% Black, 25% BlackH |
|Black x White ||mmhh x MMhh ||100% Merle |
|*Black x WhiteH ||mmhh x MMHh ||50% Merle, 50% Harle |
|BlackH x BlackH ||mmhh x mmHh ||50% Black x 50% BlackH |
|*BlackH x Merle ||mmHh x Mmhh ||25% Black, 25% BlackH, 25% Merle, 25% Harle |
|*BlackH x Harlequin ||mmHh x MmHh ||33%BlackH, 16.7%Black, 33%Harle, 16.7%Merle |
|*BlackH x White ||mmHh x MMhh ||50% Merle, 50% Harle |
|*BlackH x WhiteH ||mmHh x MMHh ||33% Merle, 67% Harle |
|!Merle x Merle ||Mmhh x Mmhh ||25% Black, 50% Merle, 25% White |
|!*Merle x Harlequin ||Mmhh x MmHh ||
25% Merle, 25% Harle, 12.5% Black, 12.5% BlackH, 12.5% White, 12.5% WhiteH
|!Merle x White ||Mmhh x MMhh ||50% Merle, 50% White |
|!*Merle x WhiteH ||Mmhh x MMHh ||25% Merle, 25% Harle, 25% White, 25% WhiteH |
|!*Harlequin x Harlequin ||MmHh x MmHh ||8.3%Black, 16.7%BlackH, 33.3%Harle, 16.7%Merle,16.7%WhiteH, 8.3%White |
|!*Harlequin x White ||MmHh x MMhh ||25% Merle, 25% Harle, 25% White, 25% WhiteH |
|!*Harlequin x WhiteH ||MmHh x MMHh ||33.3% WhiteH, 16.7%White, 33.3% Harle, 16.7% Merle |
|!White x White ||Mmhh x MMhh ||100% White |
|!White x WhiteH ||Mmhh x MMHh ||50% White, 50% WhiteH |
|!WhiteH x WhiteH ||MmHh x MMHh ||66.7% WhiteH, 33.3% White |
We've now covered the genetics that make up Black, Harlequin, Merle and (double merle) White. Let's take a look at what we get when we start breeding these dogs. For now, let's disregard S-series white spotting. We'll take a look at it again later. For Black and White Danes, I'll use BlackH and WhiteH if these dogs are carrying the H gene. Please note that these percentages are theoretical, given that HH is lethal. However, MMHh is also a sub-lethal, in that some MMHh dogs also do not develop, so the WhiteH numbers stated are HIGHER than would actually be expected in actual puppies born. While it may be possible to distinguish WhiteH from White because the WhiteH, while rarer, should show only black patches on the few areas of pigment, whereas a White (not carrying Harle) can show Merle and Black patches. There is no way to visually distinguish between Black and BlackH.
!=will produce double-merle white puppies, *=will produce Harlequin
Table of Contents
- Volvulus To calculate your dog’s lifetime risk of GDV follow these steps
- Based on the findings of the five-year prospective study of Volvulus (Bloat) or gastric dilatation-volvulus (GDV) at Purdue University, graphs were drawn to help owners of large (50-99 lbs) and giant (>99 lbs) breed dogs estimate their dog’s lifetime risk of developing GDV
- Natural Dog Food
- Natural Dog Food is the Best Food you can give your dog. Processed Dog Food Contains food not fit for consumption.
- Hip Dysplasia in Dogs
- Hip dysplasia in dogs is the most common cause of rear leg lameness in dogs. The highest incidence occurs in large-breed dogs.
- Great Dane Genetics
- Great Dane Genetics
- Heat Exhaustion And HeatStroke
- Heat Exhaustion and Heat stroke is an emergency and requires immediate treatment. Because dogs do not sweat (except to a minor degree through their foot pads), they do not tolerate high environmental temperatures as well as humans do. Dogs depend upon panting to exchange warm air for cool air. But when air temperature is close to body temperature, cooling by panting is not an efficient process.
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