Explaining Percentages and Appendixes

 One of the questions we get asked most often is about percentages, appendices, purebreds, and fullbloods. It can certainly be confusing when you're first researching Nigerian Dwarf goats, especially as different societies use different registration systems.

The first thing to understand is that the Dairy Goat Society of Australia (DGSA) uses an Appendix System, while other societies, such as the Australian Goat Breeders (AGB), use a Percentage System.

 The DGSA Appendix System was originally designed as a breed-up program. When Nigerian Dwarf goats were first being established in Australia, there was a limited genetic pool available, so breeders used approved outcrosses and then bred back to Nigerian Dwarfs over multiple generations.

The Appendix levels are:

• Appendix D
• Appendix C
• Appendix B
• Appendix A
• Appendix X
• Appendix P

As an example, let's say you breed a 100% Fullblood Nigerian Dwarf buck to a Saanen doe.

The resulting offspring would be:

• 50% Nigerian Dwarf
• 50% Saanen

If registered as a Nigerian Dwarf, that goat would be an Appendix D Nigerian Dwarf.

Alternatively, it could be registered as an Appendix D Saanen, but it cannot be registered as both. A goat can only hold one registration.

If that Appendix D offspring is then bred to a 100% Fullblood Nigerian Dwarf buck, the resulting kid becomes an Appendix C.

Breed back again to a 100% Fullblood buck and you get:

• Appendix B
• Then Appendix A
• Then Appendix X

Historically, these generations represented approximately:

• Appendix D = 50%
• Appendix C = 75%
• Appendix B = 87.5%
• Appendix A = 93.75%
• Appendix X = 96.875%

After reaching Appendix X, a mature goat can be height verified after four years of age and upgraded to Appendix P status.

 This is where confusion often arises.

Some people mistakenly assume that an Appendix X or Appendix P goat is automatically 100% Nigerian Dwarf. That is not the case.

Any animal produced through a breed-up program can never become 100% genetically Nigerian Dwarf because somewhere in its ancestry there was an outcross to another breed.

An Appendix X or Appendix P goat may be considered a purebred within the society's registration system, but that should not be confused with being genetically 100% Nigerian Dwarf.

 For a goat to be considered 100% Fullblood, every ancestor in its pedigree must trace back to Nigerian Dwarf genetics without any outcrosses.

In Australia, this generally means the pedigree traces back to imported American Nigerian Dwarf bloodlines on both the sire's and dam's sides.

There are Australian studs that maintain entirely fullblood herds, and there are also studs that have a mixture of fullblood and appendix animals.

If purchasing a fullblood goat is important to you, don't be afraid to ask to see registration papers and pedigrees. A reputable breeder should be happy to explain the lineage and show you how the goat traces back through its ancestry.

 Many people assume that Appendix status tells them the percentage of Nigerian Dwarf genetics in a goat. In reality, Appendix status simply tells you where that goat sits within the registration system.

For example:

• Appendix D × Appendix D = Appendix C
• Appendix C × Appendix C = Appendix B
• Appendix B × Appendix B = Appendix A
• Appendix A × Appendix A = Appendix X

Notice that the Appendix level upgrades regardless of the actual percentage of Nigerian Dwarf genetics involved.

To demonstrate this, imagine two Appendix D goats that are both 50% Nigerian Dwarf.

When bred together:

• Appendix D (50%) × Appendix D (50%) = Appendix C

Breed those offspring together:

• Appendix C (50%) × Appendix C (50%) = Appendix B

Continue the process:

• Appendix B (50%) × Appendix B (50%) = Appendix A
• Appendix A (50%) × Appendix A (50%) = Appendix X

You now have an Appendix X Nigerian Dwarf that is still only 50% Nigerian Dwarf genetically.

This is why understanding the difference between Appendix status and genetic percentage is so important.

 For many people, it doesn't.

If your goal is to own healthy, productive, friendly goats, then a well-bred appendix animal may suit you perfectly.

However, for buyers specifically seeking fullblood Nigerian Dwarf goats, understanding pedigrees, percentages, and registration systems becomes very important. Without that knowledge, it's easy to assume that all Appendix X animals are equivalent when genetically they may be very different.

Our advice is simple: ask questions, request pedigrees, and make sure you understand exactly what you're purchasing. A good breeder should be able to explain the registration system, the goat's ancestry, and how their breeding program fits into the bigger picture of the breed.

 FULLBLOOD NIGERIAN DWARF (100%)
│
▼
× OUTCROSS BREED
(e.g. Saanen Doe)
│
▼
APPENDIX D
(50%)
│
▼
Bred to Fullblood Buck
│
▼
APPENDIX C
(75%)
│
▼
Bred to Fullblood Buck
│
▼
APPENDIX B
(87.5%)
│
▼
Bred to Fullblood Buck
│
▼
APPENDIX A
(93.75%)
│
▼
Bred to Fullblood Buck
│
▼
APPENDIX X
(96.875%)
│
▼
Height Verified
After 4 Years
│
▼
APPENDIX P 

 Many people assume that an Appendix X goat must be nearly 100% Nigerian Dwarf. However, Appendix status and genetic percentage are not the same thing.

For example:

Appendix D (50%) × Appendix D (50%)
▼
Appendix C (50%)

Appendix C (50%) × Appendix C (50%)
▼
Appendix B (50%)

Appendix B (50%) × Appendix B (50%)
▼
Appendix A (50%)

Appendix A (50%) × Appendix A (50%)
▼
Appendix X (50%)

This means it is entirely possible to have an Appendix X Nigerian Dwarf that is still only 50% Nigerian Dwarf genetically.

The Appendix system tracks registration status, not necessarily genetic percentage. This is why pedigrees are so important when purchasing goats, particularly if your goal is to own Fullblood Nigerian Dwarfs.

 One thing I think is important to mention is that just because a goat is 100% Fullblood Nigerian Dwarf does not automatically make it superior to a percentage or appendix goat.

The reality is that the "best" goat depends entirely on your goals.

If your goal is to breed and preserve Fullblood Nigerian Dwarf goats, then investing in quality 100% Fullblood stock is absolutely the right path. In that situation, artificial insemination (AI) can be one of the most effective tools available, allowing access to elite genetics from around the world and helping maintain genetic diversity within a relatively small gene pool. Purchasing from breeders who actively use AI programs can also be a great way to access those genetics.

However, it is important to understand that Fullblood status and quality are not the same thing.

Over the years, I have seen many percentage and appendix animals that outperform some Fullblood goats in areas that are important to dairy breeders. Because outcross programs have introduced additional genetic diversity, there has often been more opportunity to improve traits such as udder structure, milk capacity, teat size and placement, and overall dairy character.

In particular, many well-bred percentage and appendix does have:

• Larger milk capacity
• Better udder attachments
• Longer, more functional teats
• Improved teat placement for hand and machine milking
• Excellent overall conformation

This is especially noticeable in some lower-percentage animals that have been crossed with larger dairy breeds. While they may not be Fullblood Nigerian Dwarfs, they can be incredibly productive dairy animals.

If your goal is to compete in the show ring, it may be worth considering high-quality percentage or appendix goats alongside Fullblood animals. Some exceptional goats have come from these breeding programs and continue to make valuable contributions to the breed.

If your goal is simply to provide fresh milk for your family, then lower-percentage dairy crosses can be hard to overlook. In many cases, they offer significantly greater milk production than even very well-bred Nigerian Dwarfs. For example, a productive dairy cross may comfortably produce 4 litres per day, while a quality Nigerian Dwarf may produce closer to 2 litres per day. Neither is better or worse—it simply depends on what suits your needs.

And if your goal is companionship rather than breeding or dairying, then I honestly believe you can't go past a well-raised wether. In our experience, wethers are often some of the friendliest, most affectionate goats around, especially when they are raised closely with people from a young age.

At the end of the day, goats are not a one-size-fits-all animal. The right goat for one person may be completely wrong for another. The key is understanding your goals first, and then choosing the animal that best fits those goals.

This is why we spend a lot of time talking with prospective owners about their goals before recommending goats. Whether your dream is to establish a Fullblood breeding program, compete in the show ring, produce milk for your family, manage vegetation on your property, or simply enjoy a few friendly companions, the "right" goat will look different for every situation.

At Treechangers Park, we're passionate about helping people find the goats that best suit their needs, rather than simply selling them the goats we have available. We believe that matching the right animals to the right homes leads to happier owners, happier goats, and a more enjoyable experience for everyone involved.

If you're unsure whether a Fullblood, percentage, appendix animal, doe, buck, or wether is the best fit for your goals, we're always happy to share our experiences and help guide you through the decision-making process. Starting your goat journey can feel overwhelming at first, but with the right information and support, it can also be incredibly rewarding.