In the Netherlands, most of the tested bulls are sampled for preservation in the gene bank [ 8], while in the USA, the selection of animals for cryopreservation is aimed at optimizing genetic diversity within the collection, by sampling animals from clusters determined through computed genealogical relationships [ 9].
By sampling animals at each end of the fat/lean EBV (estimate breeding value) spectrum the whole population could be assessed using less than 300 animals, without losing statistical power.
Such filtration, however, would inevitably reduce the temporal resolution by which the animal is sampling the environment, compromising the animal's ability to detecting fast moving and changing stimuli, and reacting to them.
Selective genotyping, i.e. use of individuals at the extreme ends of a phenotypic spectrum provides an effective means of performing GWAS on a large population by sampling small numbers of animals and has its theoretical basis in the early 1990s [ 34].
Here we present a technique to use stable water isotopes to estimate the mean mix of water sources in a population by sampling a group of sympatric animals over time.
Breeds A and B were simulated by randomly sampling 100 animals from the founders in generation -55 and random mating for 54 additional generations to mimic recent breed formation.
In this case, there was very little relationship between the two, except for the fact that carcase conformation was moderately negatively correlated with milk production.> -wrap-foot> As Igenity scores were derived from the SNP genotypes carried by the sampled animals, they are effectively a direct genetic measure of each animal, according to Merial's protocols.
After slaughtering, a biobank of tissues was created by sampling several tissues for each animal, including subcutaneous adipose tissue.
Potentiation could reflect neural processing but could also result from changes in sensory sampling by the animal.
Our analysis shows EBOV is most likely to be recovered from free-ranging species by opportunistically sampling dead animals.
