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v. bred (brĕd), breeding, breeds
1. To produce (offspring); give birth to or hatch.
a. To cause to reproduce, especially by controlled mating and selection: breed cattle.
b. To develop new or improved strains in (organisms), chiefly through controlled mating and selection of offspring for desirable traits.
c. To inseminate or impregnate; mate with.
1. To produce offspring.
2. To copulate; mate.
A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation.


noun A race or variety of animals or plants related by descent from common ancestors which are phenotypically similar.
verb To produce as offspring, bear, procreate, generate, beget or hatch.


a group of related animals which are genotypically and phenotypically sufficiently similar to produce physically similar offspring when they are mated with each other. In most countries each breed is managed by a breed society which maintains a register of the animals that are members of the breed, and which animals shall be admitted to the register. The breed society also sets the standards for physical appearance that must be attained. See specific breed name for further descriptions and under species for list of breeds.

breed class averages
the average production performance for all animals in the breed, arranged in groups according to age and sex.
commercial breed
the breed is at the level where commercial herds are breeding them for the sale market as egg-layers or wool producers rather than as foundation stock to produce the sale article.
breed comparisons
comparisons of productivity between populations each of which consists entirely of members of one breed.
breed complementation
the practice of combining breeds in a breeding program so as to maximize the genetic merit of offspring for total productivity; implies use of breeds which tend to cancel out the undesirable elements in their genetic makeup.
breed multiplier
second echelon in the breeding industry; the stud breeder producing usually sires and, to a lesser extent, dams of superior merit for commercial flocks or herds.
breed nucleus
a stud producing its own male and female herd replacements, without the introduction of outside blood; supplies the multiplier.
breed preservation
when superior breeds appear the superseded breeds are often in danger of extinction; preservation of genes which may be desirable at a later time dictates that the superseded breed be maintained in its pure state.
breed structure
see traditional breed pyramid.
traditional breed pyramid
the supply structure of three echelons, each larger than the one before, within each breed; shape like a pyramid with the breed nucleus at the top, supplying to the second echelon, the multiplier, in turn supplying sires to commercial herds.
breed true
to produce offspring that are very similar to the parent(s); refers to homozygotes.

Patient discussion about breed

Q. What kind of dogs are considered "low allergy" breeds? My son really wants a dog and I am allergic. Not severely but... Promised to look into getting a low allergy one. Appreciate any info including how to source free/low cost as money is tight.

A. Take in mind that there are also other criteria for choosing a dog. Some of them need special grooming and some aren't really great with kids, but you can check out these breeds and more at www. As for myself, I have had several Bichon Frises, and they can be great with kids and other pets, and they are hardy and very, very intelligent!! They arent too big either! Good luck on your hunt!

More discussions about breed
References in periodicals archive ?
Ear samples for the three Western commercial breeds were collected from the Research Center of Pig Breeding and Reproduction in Shandong province.
The within-breed analyses (Table 2) showed that all of the six indigenous pig breeds had larger genetic diversity than the three Western commercial breeds in all measures of genetic diversity (MNA, [A.
Trees from both NJ and UPGMA methods showed similar topologies, but both trees did not clearly divide the indigenous breeds in Shandong and the Western commercial breeds into different clusters.
MacNeil, a geneticist at the Miles City laboratory, "the cattle on Chirikof Island were genetically quite unique relative to our commonly used commercial breeds.
Among the commercial breeds, Chirikof Island cattle were most closely related to Highland, Hereford, and Angus.
In the present study, we investigated allele distributions of the seven egg white protein loci in seven Japanese native chicken breeds (Hinaidori, Nagoya, Amakusa-daio, Tsushima-jidori, Satsuma-dori, Jitokko and Chan) and compared these data with those of Asian native chicken populations and commercial breeds.
In order to assess genetic variability within a population and genetic relationships among Japanese native chickens, Asian native chicken populations and commercial breeds, we calculated allele frequencies from genotyping data and a Chi square test ([chi square]) for Hardy-Weinberg Equilibrium.
ST] in seven Japanese native chicken breeds were computed and compared with those of Asian native chicken populations and commercial breeds (Kinoshita et al.
IS] values at the majority of loci, which could be due to the fact that all the commercial breeds were maintained with a proper breeding plan so as to avoid inbreeding.
In this study, we report re-identification of SNPs on pig chromosome 2, SNP allelic frequencies between commercial breeds, and meat quality association of SNP alleles.
The genotyping results showed great variation in allele frequencies between Chinese indigenous and introduced commercial breeds (Table 2).
We genotyped the C595T substitution by using the DHPLC equipment in almost 189 unrelated pigs, representing five indigenous and introduced commercial breeds.

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