Diverse livestock species are held.
Embryonic stem cells capable of contributing to the germline of livestock species such as sheep have not been isolated.
Since infection by either of these parasites can be lethal to some commercial livestock species, their presence in elk herds is of some concern.
"For each livestock species - cattle, hogs, sheep and horses - we need more space."
However, their once vital status has been largely replaced by other livestock species, especially the pig, chicken, and cow.
Most other livestock species cannot easily be bred to lack horns naturally - for example: the polling gene in goats is closely tied to hermaphrodism.
For each of these livestock species the subtherapeutic use is substantially higher: this contributes unnecessarily to possible microbial resistance.
You're exactly correct, domesticated honeybees are a vital livestock species that is beneficial to humans in a number of ways.
Nutritional science resulted in the increased use of confinement for other livestock species in much the same way.
"It could also bring longer growing seasons, reduced frost damage, and the opportunity to introduce new crops and livestock species."