Silent Heat & TTE – Species

Silent heat & temporary teat engorgement (TTE) is commonly seen in:

Correct Answer: Buffalo

Both silent heat (subestrus — estrus without visible behavioral signs) and Temporary Teat Engorgement (TTE) are commonly seen in the buffalo.

Silent Heat in Buffalo

• A major reproductive problem in buffaloes — the cow cycles normally (ovulation occurs) but shows minimal or no behavioral signs of estrus.
• This makes heat detection difficult and leads to missed inseminations.
• Hormonal factors, nutritional deficiencies, and the nocturnal preference for expressing heat contribute to silent heat in buffaloes.
• Buffaloes tend to show heat signs predominantly at night — another detection challenge.

Temporary Teat Engorgement (TTE)

• TTE is the temporary enlargement/engorgement of the teats observed in buffalo around estrus — due to increased estrogen-mediated vasodilation of the udder.
• It is a useful secondary sign of heat detection in buffaloes.