cat hormones

Tomcat jowls created by the presence of testosterone

Unneutered male cats have a more masculine facial appearance compared to neutered male cats

This is a discussion about whether the neutering of male cats (castration) changes their facial appearance. It can also have an impact on their overall appearance indirectly i.e. lower metabolism leading to putting on weight. But I’m focusing on the face. My argument is that it feminises the male cat face by making it narrower. …

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Cushing's disease in cats

Cushing’s disease in cats – it’s rare and more common in dogs

Cushing’s disease in cats or hyperadrenocorticism is an endocrine disorder (endocrine system secretes hormones) in which the adrenal glands persistently produce an excess of cortisol, creating an imbalance of hormones in the body. Cushing’s disease appears to be sex-linked in that 75% of cases occur in female cats. The disease can affect cats as young …

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Does neutering male cats make then less strong?

Castration of male domestic cats increases hair length from short to medium

In a study by A.G. Searle, University College, London, entitled Gene frequencies in London’s cats, which was carried out in the summer of 1947, it was concluded that “There is a significant tendency for male castration to increase hair length from short to medium… It is well established that castration inhibits baldness in Man.” My …

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Pregnant cat

Stress during cat pregnancy might make her kittens timid and less adoptable

Dr. John Bradshaw in his book Cat Sense writes that if a mother is highly stressed during her pregnancy her stress hormones may cross the placenta and impair the development of her kittens’ brains and endocrine systems. The endocrine system refers to the kitten’s hormones. I wanted to check this and expand on it. I …

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Newborn kittens

Two hormonal issues which help create a bond between mother cat and her young kittens

There are two hormonal issues which help to ensure that the bond between mother cat and her kittens is strong and that the kittens are trusting during their first few weeks after birth. Mother Firstly, the nursing mother receives a wave of the hormone oxytocin which is produced in the hypothalamus and is secreted into …

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Adrenal glands of domestic cats

Adrenal glands of domestic cats produce small amounts of testosterone

I have spent a considerable time this morning trying to work out why neutered male cats still hump (sometimes). My cat does it. So where does this sex drive come from? A male cat’s testicles produce testosterone which motivates a male cat to have sex. The neutering operation removes the testicles. Does this mean that …

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Note: sources for news articles are carefully selected but the news is often not independently verified.
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