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Jacqulyn · 02-10-2009, 08:06 AM

I know you are concerned about your little one. But do as others have posted and research. Try not to stress yourself out and just love him. I am attaching some information on breeding that you may find helpful.

INBREEDING AND LINE-BREEDING
Inbreeding consists of the inter-mating of relatives, and it is virtually impossible to breed pedigree stock of any kind without having some relationship somewhere. Once a breed is established, it is impossible to breed a male and female within this breed without finding some ancestors in common. It may be so far back that you can't trace them, but by inbreeding these common ancestors, your breed was formed.
Most breeders consider "outcrossing" as breeding stock who are completely unrelated in the last six generations. This is as far as most breeders trace their stocks' ancestry, unless they have personally linebred for a longer period of time.
"Line-breeding" is considered to be merely a mild or less intense form of inbreeding. Mating of distant cousins, or mating dogs who come from the same kennel and same strain but who have no common ancestors closer than four or five generations behind them.
"Inbreeding" condenses the genetic pool and because they are the most closely related genetically the chances of the results being very good or VERY BAD are good and should not be attempted by an amateur.
Inbreeding, which I call "test breeding" is the only way to sort out faults and virtues. Whether the results are good or bad will depend on the type of stock you start with, because inbreeding cannot create good or bad points. It merely uncovers them. When results of inbreeding are disappointing, don't run to an outcross to try to solve your problems, since you will only bring in more covered-up problems. Stick it out and keep culling the results, and don't overlook a fault, because inbreeding merely intensifies a fault and makes it worse. For instance, an Outcross gives you a 1 to 1000 ratio of finding the good or bad and Inbreeding brings the chances down to 1 to 30.
You must start with good sound stock and learn as much as possible about it. Only the offspring are the proof of what you can learn. The longer you inbreed, the more alike the offspring will become, but don't hesitate to eliminate from your breeding program those dogs or bitches that throw serious faults.
This latter problem is where many mistakes are made and secrets are kept from new breeders. If a valuable stud or bitch begins to throw serious hereditary problems within a line, they should be eliminated from your breeding program. You are doing the breed a great injustice if your attitude is ..." All I need is one good male in a litter and it doesn't matter if the rest are lousy".

It does matter, and your actions may cause many people many problems.
The three accepted forms of inbreeding practiced by most breeders are:
1) Mating sire to his daughter and producing stock with 3/4 of the genetic makeup of the sire. This is to intensify his qualities.
2) Mating the dam to her own son or sons successively. This increases the genetic makeup of the dam. With a good brood, this promises a lot.
3) Brother and sister mating, but this is the least promising, since you are working with unknown quantities instead of the sire-and-dam matings, where you already know what their offspring are like.

Ref: Hilary Harmers' "Dogs and How to Breed Them"

02-10-2009, 08:06 AM	#9
Jacqulyn Donating Senior Yorkie Talker Join Date: Feb 2009 Location: USA Posts: 155	this may ease your mind I know you are concerned about your little one. But do as others have posted and research. Try not to stress yourself out and just love him. I am attaching some information on breeding that you may find helpful. INBREEDING AND LINE-BREEDING Inbreeding consists of the inter-mating of relatives, and it is virtually impossible to breed pedigree stock of any kind without having some relationship somewhere. Once a breed is established, it is impossible to breed a male and female within this breed without finding some ancestors in common. It may be so far back that you can't trace them, but by inbreeding these common ancestors, your breed was formed. Most breeders consider "outcrossing" as breeding stock who are completely unrelated in the last six generations. This is as far as most breeders trace their stocks' ancestry, unless they have personally linebred for a longer period of time. "Line-breeding" is considered to be merely a mild or less intense form of inbreeding. Mating of distant cousins, or mating dogs who come from the same kennel and same strain but who have no common ancestors closer than four or five generations behind them. "Inbreeding" condenses the genetic pool and because they are the most closely related genetically the chances of the results being very good or VERY BAD are good and should not be attempted by an amateur. Inbreeding, which I call "test breeding" is the only way to sort out faults and virtues. Whether the results are good or bad will depend on the type of stock you start with, because inbreeding cannot create good or bad points. It merely uncovers them. When results of inbreeding are disappointing, don't run to an outcross to try to solve your problems, since you will only bring in more covered-up problems. Stick it out and keep culling the results, and don't overlook a fault, because inbreeding merely intensifies a fault and makes it worse. For instance, an Outcross gives you a 1 to 1000 ratio of finding the good or bad and Inbreeding brings the chances down to 1 to 30. You must start with good sound stock and learn as much as possible about it. Only the offspring are the proof of what you can learn. The longer you inbreed, the more alike the offspring will become, but don't hesitate to eliminate from your breeding program those dogs or bitches that throw serious faults. This latter problem is where many mistakes are made and secrets are kept from new breeders. If a valuable stud or bitch begins to throw serious hereditary problems within a line, they should be eliminated from your breeding program. You are doing the breed a great injustice if your attitude is ..." All I need is one good male in a litter and it doesn't matter if the rest are lousy". It does matter, and your actions may cause many people many problems. The three accepted forms of inbreeding practiced by most breeders are: 1) Mating sire to his daughter and producing stock with 3/4 of the genetic makeup of the sire. This is to intensify his qualities. 2) Mating the dam to her own son or sons successively. This increases the genetic makeup of the dam. With a good brood, this promises a lot. 3) Brother and sister mating, but this is the least promising, since you are working with unknown quantities instead of the sire-and-dam matings, where you already know what their offspring are like. Ref: Hilary Harmers' "Dogs and How to Breed Them"