rumpless

adj.

（家禽）无尾的，无尾椎的；

The Rumpless Ones
Rumplessness of chicken embryos produced by the injection of insulin and other chemicals
The embryogeny of a recessive rumpless condition of chickens
Detection and Genetic Study of Rumpless Trait in Piao Chicken
The genetics of the rumpless fowl with evidence of a case of changing dominance
LINKAGE TESTS IN POULTRY: II.—Linkage of the Rumpless Gene
Research Progress on Molecular Mechanisms of Rumpless Trait in Chicken
Secret of Lower Viability in Rumpless Chicken –Lack of Burse of Fabricius, Observed in a Chinese Rumpless Chicken (Piao Chicken)
Genome-Wide Association Mapping and Identification of Candidate Genes for the Rumpless and Ear-tufted Traits of the Araucana Chicken
A Novel Gain-Of-Function Mutation of the Proneural IRX1 and IRX2 Genes Disrupts Axis Elongation in the Araucana Rumpless Chicken