The phrase "a continuous breeding" is correct and usable in written English.
It can be used in contexts discussing ongoing reproduction or the process of producing offspring over time.
Example: "The researchers observed a continuous breeding of the species in the controlled environment."
Alternatives: "an ongoing reproduction" or "a constant breeding".
Thus, the mice were maintained in a continuous breeding program.
Indeed, small population sizes [ 52, 53] as well as dioecy [ 54] could explain the observed reduced diversity in the wild V. vinifera gene pool, while multiple domestication events [ 50] and a continuous breeding process the larger diversity in the cultivated gene pool.
In a continuous breeding protocol on mice, a reduction in the number of litters, litter size, and proportion of liveborn offspring was observed after DEHP exposure as well as after exposure to higher concentrations of DBP (Lamb et al. 1987), whereas increased risk of mid-pregnancy abortions was found among DBP-exposed rats in another study (Gray et al. 2006; Lamb et al. 1987).
Another possibility for this sex bias could be due to a possible weakening of the resistance strength as a result of continuous breeding for years.
A Reproductive Assessment by Continuous Breeding (RACB) study using mice exposed to boric acid at 1000, 4500, and 9000 ppm in the diet indicated that there are probably multiple sites of action, although male fertility appears very sensitive.
In order to maintain yield levels, farmers must either increase their use of chemicals to kill pests, or change to a new crop variety; hence the continuous breeding for resistance traits.
Evidence of continuous breeding activity was determined for a high number of species at the three habitats (> 70% lactating and 65% with embryos).
Males that continued to sire offspring in month 2 were treated in month 3 of breeding with 50 mg/kg BID ("high-dose" regimen), and JQ1 treatment was stopped for these males and controls while continuing to breed to 2 females per cage through 8 months of continuous breeding.
For mating studies, males were pretreated for 6 weeks with vehicle or JQ1 and caged continuously with two females each while continuing 50 mpk QD for month 1 and escalating to 75 mg QD for month 2. The JQ1-treated males that were responsive to this "low-dose" treatment regimen were allowed to recover untreated while continuing to breed to 2 females per cage through 7 months of continuous breeding.
We determined the PrPc expression levels in TgOvPrP4 mice by analysing the brains of a series of 47 animals produced after long-term continuous breeding of the mouse line.
The constant exhibition of enlarged breasts in a female can be explained by seasonless mating, consecutive conception, and continuous breeding.
