A Brief Discussion On Animal Reproduction

Animal Reproduction

In the animal world, every species has unique adaptations required for reproduction. Sexual and asexual reproduction is the two kinds. Asexual reproduction is known for producing offspring that is genetically identical. As far as sexual reproduction is concerned, the genetic materials of both individuals are combined for the production of offspring which are not different from other parents in terms of genetics. During reproduction, the gamete is placed inside the body for fertilization that takes place internally. The male gamete is left for a female to pick it up to place it in her body and eggs and sperm is released for fertilization to take place externally.

Overview of sexual and asexual reproduction

There are some animals which produce offspring with the help of asexual reproduction, whereas others do it through sexual reproduction. However, both methods have its own pros and cons. A sexual reproduction helps in offspring production that is identical genetically of the parent as the offspring are basically clones of the actual parent. In fact, a single individual easily produces offspring through asexual method and offerings can be produced in large numbers in no time. These are the key benefits of asexual reproduction over sexual reproduction.

Pros & cons

In a normal environment, one of the effective methods of reproduction is the asexual one as the offspring are well adapted to such conditions. Whereas, under unpredictable environment, animals may reproduce through asexual methods, but it is more of a disadvantage as all offspring are identical and adapting to distinct conditions is not possible.

The genetic material of distinct individuals is mixed for production of genetically different offspring so as to ensure they are not identical to their parents. This is the normal scenario that takes place during sexual reproduction. The diverse offspring produced here is known to offer better fitness as the offspring can sustain and reproduce even in a distinct or unpredictable environment. It is important to maintain different types of individuals which includes both male and female when they reproduce sexually. Only half the female species are capable of producing offspring and hence limited production of offspring takes place when you compare it with asexual reproduction. Well, this is a constraint of sexual reproduction over asexual reproduction. These are some of the basics of animal reproduction that you should be aware of especially if you are an animal lover and wish to have pets.

Interesting Facts About Dog Reproduction

Dog Reproduction

Sexual maturity or puberty comes in female dogs when they are about six months old. The breeds that are smaller in dimension usually go into heat or oestrus before six months of age, which can be as early as being four months old. In contrast, larger breeds or giant dogs would probably be a year or older before they come into heat.

Coming into heat is twice a year for most dog breeds, though this can vary. The variability would be greater when cycles first begin. Some females take about eighteen months and develop their regular heat cycles by two years.  In some females, three to four heat cycles in a year are common while in larger breeds the heat cycle comes once in 12 to 18 months.

When female dogs come into heat, this lasts for two or three weeks. There is a vulvar discharge which is the first signs of heat cycle beginning. Females start to pay attention to their vulva by licking it and it appears swollen. Once the discharge ceases and the swelling of the vulva reduces it returns to normal size. Signs of heat also comprise of vaginal bleeding.

Female dogs are receptive to male ones from the time the heat period begins but they are receptive only about 7 to 10 days later. Around this time the discharge is less bloodstained. Some female dogs can experience heavy bleeding of the vagina for which you might want to consult your vet to understand what needs to be done.

If you wish to de-sex your dog they can be taken in when they are in season though in most cases surgery is done about 8 weeks from the start of the last cycle.

Most female dogs are receptive by the 10th day of a heat cycle. At such a time ovulation occurs. Male dogs need to be at least six months of age or more to be ready for mating. Vets can perform tests for your dog in order to determine whether they are ready for mating. It is best to seek out a professional breeder in the area if you wish to get your dog mated successfully. In case you have a female dog, it needs to be taken to the male dog’s home as the latter is known to be more comfortable mating in their own turf. Breeders usually provide one or more mating chances for breeding to be successful.