© Copyright Goldendoodles.com 2001.  All rights reserved.  You may not copy or otherwise use anything on this site without our written permission.

DOODS & GENERATIONS   

First Generation Goldendoodles  -  F1

A first generation hybrid Goldendoodle is the product of a Golden Retriever and a Poodle.  As first generation hybrids, these dogs have the added health benefits associated to Hybrid Vigour.  This is a phenomenon in animal breeding referring to the fact that the first cross between two unrelated purebred lines is healthier and grows better than either parent line.  (photo courtesy of Big Oak Farm) Coat Maintenance:  moderate to high care Coat Description: Coat grows to a natural body length of 3-5 inches which requires combing and occasional grooming.  Many choose to have the fur cut back once every few months to keep the fur shorter and easier to maintain.  Coats are usually wavy or curly, with a rare shorter hair coat. Shedding:  mostly very light to nonshed (see the stats in the Dood Database) Allergy Friendliness:  usually successful in families with mild allergies.  When a family has moderate to severe allergies, a backcross Dood is recommended.

First Generation Backcross Goldendoodles - F1b

A backcross pup is the result of a hybrid bred back to one of its breeds of origin.  From a genetic standpoint a backcross pup is a first generation cross.  As breeders are breeding towards nonshedding and allergy friendliness, a backcross Goldendoodle is generally the product of a Goldendoodle bred to a Poodle.  The resulting dog is, on average, 1/4 Golden Retriever and 3/4 Poodle.  Although there is less vigour in this crossing than in the original hybrid,  the first generation backcross still is close enough in the breeding tree to benefit from hybrid vigour.  With each successive generation vigour is lost. Coat Maintenance:  moderate to high care Coat Description: Coat continues to grow in length although similar in appearance to a first generation Goldendoodle.  Coats are wavy or curly. Shedding:  very light to nonshed (see the stats in the Dood Database) Allergy Friendliness:  recommended for families with moderate to severe allergies.

Second Generation Goldendoodles - F2

A second generation Goldendoodle (F2) is the result of a Goldendoodle bred to a Goldendoodle - and there are very few of these actually bred as the second generation hybrid is genetically the most varied generation possible.  (see study below on wolf- poodle hybrids)  When breeding on, most Goldendoodle breeders breed a backcross instead, as the pups are more predictable, and work well for people with allergies Coat Maintenance:  varies on the coat type Coat Description: The coat can be a hair coat, wavy coat, or curly coat. Shedding:  varies greatly from shedders to nonshedders Allergy Friendliness:  not recommended for families with allergies, due to the varying coat types. First generation hybrids are all exactly 50% of each parent breed. Half their chromosomes from one parent, half from the other. Dogs have 78 chromosomes, so picture 39 white marbles and 39 black marbles, each colour representing a parent breed, in a large bowl representing the chromosomes of each dog.  When these hybrids reproduce, each sperm or egg will contain '39 marbles randomly picked from the large bowl'. Statistically the random mix will be somewhat evenly distributed, but it is theoretically possible though unlikely to 'pull out 39 black marbles' and also produce a purebred of either parent breed. Dr. Kate Schoeffel, honours geneticist, Vet and Dood breeder, has a great page on the genetics here - http://katesfamilypets.com/inbreeding-linebreeding-and-crossbreeding- in-dogs/ There was an intersting study done in 1976 by C. Schleifenbaum looking into the fur marks and coat color in wolves and poodle-wolf hybrids, raised in Kiel.  (Zeitschrift fuer Saeugetierkunde, 41(3):147-167. BA 62:60461    ZR 113(19):148). It shows how greatly varied the coat types are in a second generation hybrid. The first generation poodle-wolf hybrid  -  uniform coats. The second generation poodle-wolf hybrid  -  varied coats.

Second Generation Backcross Goldendoodles  -  F2b

A second generation backcross pup (F2B)  is the result of a Goldendoodle (F1)  bred to a Goldendoodle backcross (F1b).  Although three generations in the making, F2Bs are technically second generation dogs.  1st generation pup - Golden Retriever x Poodle  - F1 1st generation pup - Goldendoodle x Poodle  - F1b 2nd generation pup - Goldendoodle backcross x Goldendoodle - F2B Although there is less vigour in this generation than in the first,  the second generation backcross still is close enough in the breeding tree to the original hybrid to benefit  from hybrid vigour.  With each successive generation vigour is lost. Coat Maintenance:  moderate to high care Coat Description: Coat continues to grow in length although similar in appearance to a first generation Goldendoodle.  Coats are wavy or curly. Shedding:  mostly nonshed Allergy Friendliness:  recommended for families with moderate to severe allergies. (top photo courtesy of Timshell Farm)
Page 1 Page 2

FAQs

Timshell Farm

Ludwig’s Doodles
HOME FAQs Doodles & Owners FINDING A PUPPY Fun Stuff Care & Feeding Forum & Community Grooming Photo Contest Training Health Info Resources Special Stories What's New Working Doods Contact Us

SECTION

© Copyright Goldendoodles.com 2001.  All rights reserved.  You may not copy or otherwise use anything on this site without our written permission

DOODS &

GENERATIONS   

First Generation

Goldendoodles  -  F1

A first generation hybrid Goldendoodle is the product of a Golden Retriever and a Poodle.  As first generation hybrids, these dogs have the added health benefits associated to Hybrid Vigour.  This is a phenomenon in animal breeding referring to the fact that the first cross between two unrelated purebred lines is healthier and grows better than either parent line.  (photo courtesy of Big Oak Farm) Coat Maintenance:  moderate to high care Coat Description: Coat grows to a natural body length of 3-5 inches which requires combing and occasional grooming.  Many choose to have the fur cut back once every few months to keep the fur shorter and easier to maintain.  Coats are usually wavy or curly, with a rare shorter hair coat. Shedding:  mostly very light to nonshed (see the stats in the Dood Database) Allergy Friendliness:  usually successful in families with mild allergies.  When a family has moderate to severe allergies, a backcross Dood is recommended.

First Generation

Backcross

Goldendoodles - F1b

A backcross pup is the result of a hybrid bred back to one of its breeds of origin.  From a genetic standpoint a backcross pup is a first generation cross.  As breeders are breeding towards nonshedding and allergy friendliness, a backcross Goldendoodle is generally the product of a Goldendoodle bred to a Poodle.  The resulting dog is, on average, 1/4 Golden Retriever and 3/4 Poodle.  Although there is less vigour in this crossing than in the original hybrid,  the first generation backcross still is close enough in the breeding tree to benefit from hybrid vigour.  With each successive generation vigour is lost. Coat Maintenance:  moderate to high care Coat Description: Coat continues to grow in length although similar in appearance to a first generation Goldendoodle.  Coats are wavy or curly. Shedding:  very light to nonshed (see the stats in the Dood Database) Allergy Friendliness:  recommended for families with moderate to severe allergies.

Second Generation

Goldendoodles - F2

A second generation Goldendoodle (F2) is the result of a Goldendoodle bred to a Goldendoodle - and there are very few of these actually bred as the second generation hybrid is genetically the most varied generation possible.  (see study below on wolf-poodle hybrids)  When breeding on, most Goldendoodle breeders breed a backcross instead, as the pups are more predictable, and work well for people with allergies Coat Maintenance:  varies on the coat type Coat Description: The coat can be a hair coat, wavy coat, or curly coat. Shedding:  varies greatly from shedders to nonshedders Allergy Friendliness:  not recommended for families with allergies, due to the varying coat types. First generation hybrids are all exactly 50% of each parent breed. Half their chromosomes from one parent, half from the other. Dogs have 78 chromosomes, so picture 39 white marbles and 39 black marbles, each colour representing a parent breed, in a large bowl representing the chromosomes of each dog.  When these hybrids reproduce, each sperm or egg will contain '39 marbles randomly picked from the large bowl'. Statistically the random mix will be somewhat evenly distributed, but it is theoretically possible though unlikely to 'pull out 39 black marbles' and also produce a purebred of either parent breed. Dr. Kate Schoeffel, honours geneticist, Vet and Dood breeder, has a great page on the genetics here - http://katesfamilypets.com/inbreeding- linebreeding-and-crossbreeding-in- dogs/ There was an intersting study done in 1976 by C. Schleifenbaum looking into the fur marks and coat color in wolves and poodle-wolf hybrids, raised in Kiel.  (Zeitschrift fuer Saeugetierkunde, 41(3):147-167. BA 62:60461    ZR 113(19):148). It shows how greatly varied the coat types are in a second generation hybrid. The first generation poodle-wolf hybrid  -  uniform coats. The second generation poodle-wolf hybrid  -  varied coats.

Second Generation

Backcross

Goldendoodles  -  F2b

A second generation backcross pup (F2B)  is the result of a Goldendoodle (F1)  bred to a Goldendoodle backcross (F1b).  Although three generations in the making, F2Bs are technically second generation dogs.  1st generation pup - Golden Retriever x Poodle  - F1 1st generation pup - Goldendoodle x Poodle  - F1b 2nd generation pup - Goldendoodle backcross x Goldendoodle - F2B Although there is less vigour in this generation than in the first,  the second generation backcross still is close enough in the breeding tree to the original hybrid to benefit  from hybrid vigour.  With each successive generation vigour is lost. Coat Maintenance:  moderate to high care Coat Description: Coat continues to grow in length although similar in appearance to a first generation Goldendoodle.  Coats are wavy or curly. Shedding:  mostly nonshed Allergy Friendliness:  recommended for families with moderate to severe allergies. (top photo courtesy of Timshell Farm)
Page 1 Page 2

FAQs

Ludwig’s Doodles
Timshell Farm
HOME FAQs FINDING A PUPPY Doodles & Owners Fun Stuff Care & Feeding Forum & Community Grooming Photo Contest Resources Health Info Training Special Stories What's New Working Doods Contact Us

SECTION