The phrase "active breeding" is correct and usable in written English.
It can be used in contexts related to animal husbandry, agriculture, or discussions about species reproduction.
Example: "The farm specializes in active breeding of rare bird species to help increase their population in the wild."
Alternatives: "vigorously breeding" or "dynamic reproduction".
Cats who die in active, breeding colonies are quickly replaced by other wild cats.
If you're finding that your new bull isn't really doing much or anything, you can hypothesize that either he is a "night rider" (he chooses to be more active breeding his girls at night), has some sort of injury you haven't noticed yet that is inhibiting his breeding ability, or is simply not interested (some producers call these sort of bulls "gay bulls" or "gay breeders").
A. "We don't know what the value is," said James Doherty, general curator of the Bronx Zoo, which has an active breeding program for big cats.
The last time FWS examined this issue, chimpanzees were a cornerstone of AIDS vaccine research and NIH had an active breeding program.
In parallel to such newfound reach in PVP legislation, conventional breeders increasingly began to be confronted with an unfamiliar and strong legal entitlement, i.e. patents, where relatively restricted room has traditionally been awarded to follow-on use possibilities vis-à-vis protected innovations, especially in active breeding programmes.
In 2006, 250 active breeding mares and 32 stallions were reported, with 125 breeders (the term breeder applying to any person owning at least one active breeding mare).
By adults becoming active and breeding at lower temperatures, larvae would have longer to grow and develop prior to winter dormancy.
In the present study, we investigated the effects of diurnal human disturbance associated with tourism on the reproductive performance of the European storm petrel Hydrobates pelagicus, a small seabird that nests in cavities and is strictly nocturnally-active at breeding colonies.
Before surveillance or control activities started, all active or potential breeding sites in each TCU were recorded by community own resource persons (CORPs) using a set of formalized sketch maps as a rigorous geographic framework that is applicable at community level [40].
Here, cormorants have a high profile due to conflicts with humans; by 2007, most active (64%) breeding sites in U.S. waters were managed.
However, there were exceptions; in the 7th century a Merovingian kingdom still retained at least one active Roman horse breeding centre.
