In Mexico, studies related to crossbreeding
among dairy cattle (Bos taurus) breeds are very scarce.
A total of 20 gilts, 180 days old, were evaluated from crossbreeding
schemes which included YLD and YBD with animals in each scheme.
Composite: A uniform group of cattle created by selectively crossing two or more breeds for several generations and establishing a certain fixed percentage of each breed (such as the Santa Gertrudis that carries 5/8 Shorthorn genetics and 3/8 Brahmon, or the Brangus that carries 8/8 Angus genetics and 3/8 Brahman, or the Beefmaster that carries approximately 1/2 Brahman genetics and the other half a blend of Hereford and Shorthorn in roughly equal percentage), In essence a composite is a new "breed" designed to retain a certain amount of heterosis in future generations without crossbreeding
, and can thus be maintained as a "pure" breed without further infusions of other breeds.
Other teams report that they have re-created a type of Heliconius butterfly by crossbreeding
two related species in the lab (SN: 6/17/06, p.
Coordination among local guide dog associations for crossbreeding
has been rare, and it was feared that crossbreeding
among guide dogs in Hokkaido alone could deteriorate dog quality and even lead to inbreeding.
Even so, researchers have developed another clever technique to prevent transgenes from getting into weeds through crossbreeding
His favorite symbol for crossbreeding
is the banyan tree, whose roots surface in one place only to descend into the ground somewhere else.
Andrew Kimbrell, attorney with the Washington, DC-based Foundation on Economic Trends, states, "Genetic engineering is to traditional crossbreeding
what the nuclear bomb was to the sword.
However, there is very little information related to the effect of crossbreeding
using Duroc on the carcass traits and meat quality of KNP.
has been considered as a quick way of increasing performance of low productive tropical breeds.
SHEEP breeding company Innovis is extending its Aberdale crossbreeding
programme into the north of England and the Scottish Borders with the first Aberdale Swaledale lambs on the ground in Cumbria.
The pair ultimately by interbreeding a canary with a red siskin and repeatedly crossbreeding