21 Weeks old, gained 10lb in a week? Now 91lb...

[davidtq]

And on more whilst I think about it, I know mastiffs have loose skin, but our dog looks like hes splatted to the floor every time he lays down, you get all this excess dog skin laying out beside him.

 

[TWW]

Most Molosser breeds have web feet.

Danes and BM's don't have the shear mass of your boy, Saints and Newfies don't have the masking, (neither does a Leo), a TM x Leo I would expect a lot more hair.

So I'd bet it is EM x, with a large amount of EM in the mix.

Dane x leonberger slimmer/ no masking
BM x leonberger much smaller
Saint or Newfie x leonberger would not have the masking.
TM x leonberger would have more hair.

Just my opinion.
Closest I could see with not being EM with masking would be Boerboel and while there are some huge lines with them I just don't see a line that would have that big a offspring.

 

[davidtq]

Most Molosser breeds have web feet.

Danes and BM's don't have the shear mass of your boy, Saints and Newfies don't have the masking, (neither does a Leo), a TM x Leo I would expect a lot more hair.

So I'd bet it is EM x, with a large amount of EM in the mix.

Dane x leonberger slimmer/ no masking
BM x leonberger much smaller
Saint or Newfie x leonberger would not have the masking.
TM x leonberger would have more hair.

Just my opinion.
Closest I could see with not being EM with masking would be Boerboel and while there are some huge lines with them I just don't see a line that would have that big a offspring.

Im fairly certain Saints have the Mask gene, but the white gene overrides large chunks of it, As I understand it the Em Allele is completely dominant, and that only one parent needs a mask to pass it on, That said his masking is "extreme" being all over his chest and his feet.

From what Ive been guessing and I may be entirely wrong about this, he has the following genetic traits

k,k "Not all black"
B, ? Black is black not liver (hence black nose)
Ay, ? "Sable coat"
Em,? "Masked"
I locus responsible for intensity giving him the red hints
S,S I would guess his very very limited white on chest and toes was Residual white, rather than s1,s1 Like on a st bernard, Although I would guess that a S,s1 would be a possibility, but unlikelly with the complete lack of white on his nose. (s1 gene should colour white over the top of a mask)

This has been the site Ive been using most when trying to guess what comes from where to try to "rule out" parent breeds.

Dog Coat Colour Genetics

Unfortunately Ive not been able to rule out much... At one point I read that it was impossible for the legend of the Leonberger being created from a crossing of a st bernard with landseer newfoundland and later additions from pyrean because that combination of dogs could not produce the sable colour of the leonberger. Every time IVe seen a newf or landseer crossed with a st bernard it produces a black and white dog as black is dominant and a single K is enough to make a dog all black apart from the white. I believe a brown newf is also a K,K black dog with a b,b brown dilution of the black resulting in a dog with a brown nose etc as well, therefore its descendants when mixed with a k,k B,B (Not all black, not liver) dog would also be Black dogs because they would have to inherit at least one dominant K all black gene and WOULD be black.

Yeah Ive looked at all that and didnt know that any of the mollossers beyond the newf and leonberger had webbed toes...

 

[EverythingEnglishMastiff]

That's some very interesting stuff though. I'm finding the more I learn, The more I realize I didn't know

That's why I'm happy to be a member of this "brain trust". lol

 

[chriscorv58]

Beautiful boy, I love seeing all the pictures of him. I can't get over the size of his paws. Zoey was 102 pounds at 6 months, and now 132 pounds at 8 months 1 week. Looking forward to hearing the DNA results.

Sent from my SM-N910V using Tapatalk

 

[davidtq]

Slow growth this week only 1kg gain showing on the scales... so 24 weeks 47kg or 103.6lb Thought Id measure him nose to rump I make it approximately 43" nose to rump.

 

[Liz_M]

That's probably good if he slows his crazy growth rate for a bit especially given the potential ortho issues. I haven't thought to measure Booker nose to tail tip but as of a couple of days ago he was 25-25" at the withers...he keeps growing up and up! How tall is Falco, do you know?

As an aside I admire anyone who can make sense of genetics, I get utterly confused by that whole topic. Fascinating though. A previous Rottweiler of mine gave a DNA sample to the msu researchers who identified the fluffy recessive gene in several different breeds. (He was an extremely fluffy, albeit extremely well-bred, Rottweiler. )

 

[Pastor Dave]

If your dog would like to be a bit larger, I could lend or even better yet, give him 20 pounds.

 

[davidtq]

That's probably good if he slows his crazy growth rate for a bit especially given the potential ortho issues. I haven't thought to measure Booker nose to tail tip but as of a couple of days ago he was 25-25" at the withers...he keeps growing up and up! How tall is Falco, do you know?As an aside I admire anyone who can make sense of genetics, I get utterly confused by that whole topic. Fascinating though. A previous Rottweiler of mine gave a DNA sample to the msu researchers who identified the fluffy recessive gene in several different breeds. (He was an extremely fluffy, albeit extremely well-bred, Rottweiler. )

Its been a little while since I measured his height he definetely still slopes down to the shoulders from the back end. He was measuring about 26.75 at the shoulders and was a good inch plus higher at the back end.We have done a few semi serious brèeding programs over the years so you get used to it. Weve bred budgies and guinea pigs (as well as lots of different fish species). When you know the genetics you can "design" the guinea pig or budgie you want (never went in for breeding fish mutations) and know which animals to breed to get that perfect animal. Sometimes it requires 2 or 3 generations of planned brèeding to get together all the right genes to make exactly what you want.One day if we had the property size and money I would love to try the same with creating a dog breed. Would love to be able to bring back some of the lost english mastiff colour variants. I could just see a 36" at the shoulders 220lb smooth coated black mastiff with a white splash on its chest and of course no genetic hip issues in the lines... of course dogs have a longer generational time than the animals Ive worked with before and cost substantially more to buy and keep.previous breeding programs have involved 30-40 adults. Buying, feeding and exercising 30-40 mastiffs? Unlikelly lol

 

[davidtq]

Apparantly this week he went on a bit of a growth spurt. 111lb, 50.3kg. One more week till the 6 month mark. He has been growing more at the front end, but cant remember the exact number when I measured him a few days ago.


Got him a new bed, no idea how longn it will last, but its the biggest size we can get locally.
Also DNA test cant be far off now surely, stage 3..

 

[davidtq]

Heres the new bed in use.

 

[spiritDDB]

Wish I could see the pictures For some reason, they don't always show up for me.

 

[EverythingEnglishMastiff]

What a big boy! He's looking good. Patiently awaiting the results lol.

 

[Liz_M]

Wish I could see the pictures For some reason, they don't always show up for me.

This forum has been undergoing some changes and has gotten a bit glitchy currently...I'm sure they'll get it all worked out eventually! And, holy crap, is Falco a pretty dog and growing so fast. Move over Zorba (I wonder if there's a growth chart for Zorba anywhere?) For those that don't know, Zorba holds the record for the largest/heaviest dog ever recorded at 343 lbs. Zorba (dog) - Wikipedia, the free encyclopedia

 

[Boxergirl]

Oh my gosh, he just gets prettier and prettier!