Sentence examples for per breeding from inspiring English sources
Pairs having no suitable cavities in their territories started to breed less frequently, but no difference was detected in young produced per breeding attempt between cavity nests and stick nests.
To avoid sampling of siblings, only one beetle per breeding system was collected.
Increasing sperm production per breeding male has economic significance with increasing use of artificial insemination.
The clutch size for all three years was an average of 2.7 ± 0.6 eggs per breeding attempt.
The mean number of fledged young was 0.99±0.66 per breeding pair, and 1.27±0.45 per successful pair.
By 2010 there was an overall productivity of 1.2 chicks fledged per breeding pair and a 1.7% decrease in sparsely vegetated habitat.
Calculations were made on a yearly basis on the per-breeding female animal productivity, the flocks' energetic requirements (MJ NEL) based on NRC (1985) recommendations, the energy supplied through harvested feeds and, by inference, the contribution of grazing to energetic requirements.
Conversely, when lemming numbers are low (fewer than 1 per hectare) breeding among their predators ceases and predator populations plummet.
By good management its limited (six months per year) breeding season and the consequent difficulty of maintaining a level supply of milk throughout the year, can be overcome.
Some species of tropical tree squirrels produce several litters per year; breeding season in the Northern Hemisphere may extend from December to September and may result in one or two litters that average three to seven young, depending upon the species.
AE°.HLA-DR3.IFN-γ−/− mice were generated by mating AE°.HLA-DR3 transgenic mice with C57BL6.IFN-γ−/− mice (Jackson Laboratory, Bar Harbor, ME) as per standard breeding protocols.
