A zinc deficiency can negatively impact your levels of testosterone. Studies have shown that zinc supplementation can help increase testosterone levels. Zinc supplements, oysters, beef, pork, crab and fortified cereals offer great sources of this mineral.
Do not breed unless you own healthy animals with excellent breed characteristics, and you are very committed to these kittens preferably for their lifetime. For each home you find for your kittens, there is a kitten at the shelter being euthanized. Age at breeding. A female cat should be allowed to attain her adult size before breeding. If bred early, she will put her energy into feeding the unborn/newborn kittens instead of finishing her growth. She will be 18-24 months old before she is ready for breeding. A male should be 18 months of age prior to being allowed to breed. This allows time to determine if he is healthy and suitable for breeding. Temperaments are passed to the offspring as are genetic diseases.
Breeding Age. Reproductive time frames will vary between different rats and/or lines of rats. Environment, health, lineage, and nutrition are a few of the factors that can affect reproductive life. Although it is not advisable, some female rats can be capable of breeding at 6 weeks.In rare circumstances breeding has occurred as early as 5 weeks. This is why it is best to separate the sexes when a litter reaches 5 weeks of age.s they age their reproductive organs will become less suited for pregnancy and birth and the eggs will become less viable. Male rats can impregnate a female as young as 5 weeks, although that is not common. They are able to breed for most of their lives.