Showing posts with label tomcat. Show all posts
Showing posts with label tomcat. Show all posts

Thursday 12 October 2023

Unsterilised male cats produce more sperm during July to December (Brisbane)

It probably will not surprise you to know that unsterilised tomcats produce more sperm during the mating season which is spring and summer. A study - believed to have been conducted in Brisbane, Australia - found that tomcats produce more sperm during the months of July and December for Brisbane. Clearly the season depends on where the cats live! For Brisbane spring is September to November.

Unsterilised male cats produce more sperm during July to December (Brisbane)
Masculine-looking tomcat with jowly cheeks. Image: Pixabay.

The scientist who conducted this experiment used electroejaculation methods which I presume means using electricity to stimulate a male cat to ejaculate sperm.

It sounds pretty upsetting to be honest but the scientists who conducted the experiment said that it did not cause any harm or discomfort.

It seems that the purpose of the study was to see whether it is possible to provide information to cat breeders about those peak moments when their male stud cat is producing more sperm than normal and which would probably enhance the breeding process.

I don't know for sure whether a breeder would find this kind of study useful. They might not because they may know instinctively when their stud cat is more fertile and more able to produce offspring. Perhaps there is no problem whatsoever in a male stud cat producing offspring but a breeder will tell you.

My report here is based upon the summary of a study carried out by I. Johnstone entitled: "Electroejaculation in the domestic cat".

The scientist, found that there was a great deal of variation between "collections from the same cat indicating the necessity for at least five collections when assessing the fertility of a tomcat."

They found that "sperm counts were higher in the latter half of the year, at the time of increased sexual activity for cats in the Brisbane area."

They say that the "results have indicated that semen volume tends to increase from July to December, thus indicating increased accessory gland activity during the breeding season."

Thursday 27 March 2014

Why Does a Tomcat Spray Urine On the Garden Wall?

Tomcats (this word is usually used to describe a male cat that has not been castrated) mark their territory by squirting a jet of urine backwards onto vertical objects within their environment.

They aim their urine at tree stumps, fence posts, bushes and walls which are landmark features within that territories. Sometimes these features are at the borders of their territory and sometimes they might be at a crossroads but they would usually be in some sort of prominent area and possibly on a path or track that is used by the tomcat and other cats in the area.

They are particularly keen on places where they have sprayed before and where other cats have sprayed before so that they can add a fresh dose of urine to freshen the smell.

We all know that cat urine is very strong smelling and very hard to remove. It is interesting that although cat urine is very strong smelling to a human, another way that a cat marks his territory is by rubbing against objects to leave his scent on the object. We cannot smell this odour.

The odour of a cat's urine fades gradually and the degree of fading is indicative of when it was deposited. This provides a message to a cat who sniffs it telling him or her about the movements of the cat who deposited the urine.

In short, deposited urine on vertical surfaces provides information to cats about what is going on. Apparently, the smell also carries information about the emotional state of the sprayer and the individual's identity so there is some variation in the smell between cats. A sprayer in effect leaves a calling card and leaves a message to other cats who pass by.

It makes no difference to the act of spraying whether a cat wants to urinate or not. Urination and spraying are quite separate behaviours. You will even see cats that have no urine still going through the motions of spraying and marking territory even though no urine is actually involved.

Neutering both male and female cats reduces the incidence of spraying but may not eliminate it. Personally, my cats have never sprayed. The other day, I saw a Siamese cat outside my flat spraying  onto a bush next to a flowerbed. It is the area where the Siamese cat likes to frequent and to urinate and defecate. Clearly, another cat had visited the area and the Siamese cat was just topping up the marker to make sure that her message was loud and clear.

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