The purpose of selective breeding is to develop livestock whose desirable traits have strong heritable components and can therefore be propagated.
At the beginning of the 2nd century bc, tribes of herdsmen occupied the valley of the Don and developed livestock raising and crop agriculture there.
Scientists in China, in particular, are trying to develop livestock that is resistant to mad cow and foot and mouth diseases, sheep with high yields of wool, and pigs and cows with healthy omega 3 fatty acids in their meat.
The main endemic areas are in the western and northwestern provinces and autonomous regions: Xinjiang, Gansu, Ningxia, Inner Mongolia, Qinghai, Tibet [5], and Sichuan [6, 7], where extensively developed livestock husbandry maintains stable transmission cycles of Echinococcus granulosus.
Better education would ensure that future generations could tap into the businesses developing around livestock.
Responding to concerns in the food industry, companies developing cloned livestock have come up with a system to track the animals as they move through farms and slaughterhouses.
Individual countries that are developing their livestock industry will learn lessons from others.
In developing countries, livestock depends on fibrous crop residues, these have low digestibility, low protein content, poor palatability and bulkiness (Zadrazil et al. 1995).
Long-term monitoring of animal activity can yield key information for both researchers in ethology and engineers in charge of developing precision livestock farming tools.
However, there is also enormous potential for developing the livestock sector, with increasing demand for meat from rapidly growing urban populations in Tanzania and elsewhere.
