Swine estrous cycle The estrous cycle in the pig averages 21 days but can range from 17 to 25 days. The first day of standing heat, when the female is receptive to the male and will stand to be mounted, is referred to as day 0.
A: Goldfish mate by spawning. The female releases her eggs into the water, and the male releases his sperm to fertilize the eggs. Goldfish reach sexual maturity at approximately 1 year of age. The mating ritual of goldfish involves the male chasing the female and nudging against her to prompt her to release her eggs.
Room temperature is fine for the goldfish, keeping in mind that if the temperature in the room goes up past 90 degrees, so will the temperature of the water. Keeping the ambient temperature down around 70 degrees is perfect for year-round goldfish health.old Water. Goldfish love a refreshing swim and will actually perk up and swim faster when fresh, cool water is poured into the tank. Changing out a quarter of the water from time to time with some that is many degrees cooler is perfect for the goldfish.