Signs of estrus in animals

Signs of estrus in animals are nothing but behavioral changes when animal in estrus and about to conceive.

Estrus signs are less pronounced in Buffaloes than cattle usually it’s called silent heat. –frequent urination, teat swelling, reduction in milk yield, bellowing. many buffaloes come to heat during night and this also makes heat detection difficult in these animals.

Species	Signs
Cow	Bellowing, mounting, Cervical mucus discharge, Frequent urination, Swollen vulva, Reduced milk yield and Reduced feed intake.
Mare	Frequent urination, Exposure of clitoris (winking of clitoris).
Doe	Edema and hyperemia of vulva, Frequent and rapid tail wagging.
Sow	Watery vulval discharge, Standing quietly while pressing loin (lordosis).
Bitch	During proestrus, bleeding from vulva and vulva swelling; during estrus-dimishing of vulval swelling, Less turgid vagina.
Queen	Characteristic call and Roll over on its back.