A TAMUK-C resource

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Common Claims

TAMUK-C claims compared with the university's own documentation

Compiled and maintained by Southern Paws & Claws Homestead · Last updated September 2026

Much of what circulates about TAMUK-C rabbits has been passed from breeder to breeder, and not all of it matches the original record. Below are claims you'll often come across, each compared with what Texas A&M University–Kingsville and Dr. Lukefahr documented. Where the record is silent, we note guidance from TAMUK-C breeders, clearly marked as such.

Origins and Timeline

PARTLY TRUE: "TAMUK-C were developed in the mid-1980s."

The university's 2015 page says Dr. Lukefahr began crossing breeds about 30 years earlier. ⁽¹⁾ In later correspondence, he placed the start in the late 1980s, while he was living in Alabama. ⁽²⁾The mid-1980s is when the university's separate Tamuk New Zealand White line began. ⁽¹⁾

PARTLY TRUE: "It all started in 1989."

Dr. Lukefahr confirmed the crosses began in the late 1980s, ⁽²⁾ so 1989 is in the right range. No document gives it as the exact year.

Breeds and Lines

TRUE: "Seven breeds went into the Composite."

The university's list names eight: New Zealand Red, Siamese Satin, Californian, New Zealand White, Dutch, Champagne d'Argent, Harlequin, and Havana. ⁽¹⁾ But New Zealand Red and New Zealand White are two colors of the same breed, the New Zealand. Dr. Lukefahr confirmed the count is seven. ⁽²⁾

NOT TRUE: "Flemish Giant is one of the foundation breeds."

The Flemish Giant isn't in the Composite's breed list. It went into the Altex, along with the Champagne d'Argent and Californian. ⁽¹⁾

NOT TRUE: "TAMUK stands for two schools."

TAMUK is the abbreviation for Texas A&M University–Kingsville, the university the rabbits are named for. ⁽¹⁾ This may get mixed up with the Altex, a different line developed at Alabama A&M and continued at TAMUK. ⁽¹⁾

NOT TRUE: "TAMUK-C is a spin-off of the Altex."

The Composite and the Altex are separate university lines. The Composite came from Dr. Lukefahr's crosses of seven breeds, while the Altex is a commercial sire breed selected for heavy 70-day weights. ⁽¹⁾

NOT TRUE: "TAMUK developed a furless breed."

The university did keep furless rabbits for research, ⁽¹⁾ but Dr. Lukefahr said he never developed a furless breed. After the experiments, the furless rabbits were all sold to free up cages for new studies.⁽²⁾

Identity and Breeding

NOT TRUE: "TAMUK-C is a commercial breed."

The university described the Composite as better suited to small-scale backyard production, and stated it is not a commercial breed. ⁽¹⁾

NOT TRUE: "TAMUK-C need ARBA recognition or a breed standard."

Asked whether ARBA recognition is needed, Dr. Lukefahr said it definitely isn't, in his opinion. He stressed keeping diversity in the breed by not selecting for uniformity in type, color, or weight. Breeders can develop their own lines however they like, but he said those lines should eventually be crossed to restore genetic variety. ⁽²⁾Breeders point out that ARBA standards judge how a rabbit looks on the show table, while what makes a TAMUK-C valuable is how it produces, which a judge can't see. Breeding toward a show standard could cost the breed the very qualities it was developed for. ⁽⁴⁾

NOT TRUE: "You can tell a TAMUK-C by looking at it."

Asked how to tell a red-eyed white Composite from a Tamuk New Zealand White, Dr. Lukefahr said you can't by looks. Accurate pedigrees are the key, and maybe someday DNA tests. When the university sold rabbits, pedigrees went to all buyers. ⁽²⁾TAMUK-C breeders agree that pedigree is the surest way to trace a rabbit back to the university, though even a pedigreed rabbit may not show every trait of the program. If a breeder can't show a pedigree, their advice is to ask for production records showing the rabbits perform as TAMUK-C should. ⁽⁴⁾

NOT TRUE: "Crossing a TAMUK-C with a New Zealand ruins it."

The university itself crossed the Composite with its Tamuk New Zealand White line to boost fertility, litter size, milk production, and growth. ⁽¹⁾ Dr. Lukefahr also said breeders can cross to a good New Zealand White line if needed to boost production. ⁽²⁾

PARTLY TRUE: "A TAMUK-C crossed with another breed is still a TAMUK-C."

Dr. Lukefahr said other breeds could be added later, as long as there's a clear breeding objective to improve the breed. ⁽²⁾ Breeders' advice is to be upfront when selling: call a cross a crossbred, since that matters to most people looking for TAMUK-C. Some breeders still consider a cross TAMUK-C if it keeps the breed's traits, and keeping pedigrees and production records is the best way to show it. ⁽⁴⁾

Traits and Heat

NOT TRUE: "All TAMUK-C have long ears."

The university listed long ears and thin coats among the Composite's heat-adapted traits. ⁽¹⁾But no ear standard was ever set. Dr. Lukefahr advised against selecting for uniformity in type, color, or weight, to keep variety in the breed. His priority was does that steadily produce good litters. Only after that would he cull rabbits that don't fit other traits, like ears or coat.⁽²⁾ So ear length varies from rabbit to rabbit.

PARTLY TRUE: "Long ears are what keep them cool."

The university credited long ears and thin coats for the Composite's heat tolerance. ⁽¹⁾ But Dr. Lukefahr's own study of ear length in hot South Texas found no overall link between ear length and body temperature. Longer ears seemed to help most in rabbits whose fur had been clipped short, and the authors concluded more research was needed. ⁽³⁾That study used Altex and New Zealand White rabbits, not the Composite. ⁽³⁾

PARTLY TRUE: "TAMUK-C stay heat tolerant wherever they're raised."

The Composite was selected for consistent performance in a hot environment. ⁽²⁾But Dr. Lukefahr said that could fade in rabbits not raised in the heat, and that no one can predict how many generations it would take. The breed can keep adapting only if breeders keep selecting the rabbits that produce best in hot conditions, and avoid inbreeding. ⁽²⁾

UNCONFIRMED: "TAMUK-C were bred for a calm temperament."

Many breeders describe their TAMUK-C as calm, but we haven't found any university record or statement from Dr. Lukefahr showing temperament was a breeding goal. Asked what makes TAMUK rabbits valuable, he pointed only to the ability to produce good litters year-round, even in hot, humid climates. ⁽²⁾

Colors and Coat

NOT TRUE: "Rex was used in the Composite."

Rex isn't in the university's breed list, ⁽¹⁾ and Dr. Lukefahr confirmed that neither the Rex nor the Astrex was included. ⁽²⁾

NOT TRUE: "A spotted rabbit can't be a TAMUK-C."

The Dutch is one of the Composite's breeds, ⁽¹⁾ so Dutch white spotting is common. Dr. Lukefahr said he doesn't believe color or pattern would affect production. ⁽²⁾

UNLIKELY: "A broken (English spotted) rabbit can be a TAMUK-C."

No broken rabbits were ever used in the university's breeding program, ⁽⁴⁾and Dr. Lukefahr said he never saw English spotting in his rabbits and doubts his New Zealand White line carried it. ⁽²⁾ Breeders advise that anyone selling a broken rabbit as TAMUK-C should be able to show a pedigree, or at least production records. Breeders also report that the Vienna and tan genes weren't part of the original development, while satin, wide band, Dutch marking, and silvering are all possible. ⁽⁴⁾

UNSETTLED: "TAMUK-C come in sable and seal."

The university's color list includes seal, ⁽¹⁾ and Dr. Lukefahr said pearl was a color produced in the Composite. ⁽²⁾But test breeding by TAMUK-C breeders suggests the gene behind sable, pearl, and seal is likely not in the population, and that shaded rabbits are variations of sallander instead. Neither side has been proven. ⁽⁴⁾

Sources

(1) TAMUK Rabbit Breeding and Teaching Program page
Dr. Steven D. Lukefahr, Texas A&M University–Kingsville, last updated 2016
— (original page no longer online) · Archived copy

(2) Correspondence with Dr. Steven D. Lukefahr, 2022–2024
Compiled and published by Daniel Moore
— Original · Archived copy

(3) Rabbit growth performance in a subtropical and semi-arid environment: effects of fur clipping, ear length, and body temperature
Lukefahr & Ruiz-Feria, Livestock Research for Rural Development, Volume 15, Issue 2, 2003
— Original · Archived copy

(4) Questions and Answers, TAMUK Composite Rabbits
tamukcomposite.com
— Original · Archived copy

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