As more and more wild-caught gorillas became available, breeding increased.
We achieved a high detection rate (0.774) through occupancy sampling, and determined that A. jeffersonianum never used ponds inhabited by fish, and the probability of a pond being used for breeding increased as canopy cover increased.
Captive keeping and breeding increases the risk of poaching for the illegal pet market [14] [18].
The first generation of breeding increased the growth rate by 33%, thus reduced the rotation period to 27 30 yrs from the previous 40 45 yrs [ 1].
The foaling rates (for live foal) in TB breeding increased from 1983 to 1998 by 5 percentage points [ 9] but decreased from 1998 to 2002 by 3 percentage points [ 9, 11].
Meanwhile, as the complexity of the trait increase, breeding problems increase, for example, favorable alleles in exotic genetic resources are in unadapated genetic backgrounds and linked to other unfavorable alleles.
It explained that as part of an international programme, only unrelated animals were allowed to breed: "When breeding success increases, it is sometimes necessary to euthanise".
The objective of Experiment 2 was to determine if the administration of GnRH at the time of natural breeding increases the pregnancy rate in Beetal goats.
Birds are suspect because, ecologically speaking, they are the reservoir where flu viruses mutate, and as poultry breeding increases dramatically around the world, the possibility of a new flu virus being transmitted to humans rises.
However, carrot breeding over the past 50 years has primarily focused on increasing yields, while breeding for increased nutritional content of crop plants has received less attention.
